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Toro GroundsmasterR 4300-D Service Manual
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Toro GroundsmasterR 4300-D Service Manual

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Preface
The purpose of this publication is to provide the service
technician with information for troubleshooting, testing
and repair of major systems and components on the
Groundsmaster 4300--D.
REFER TO THE OPERATOR'S MANUAL FOR OPER-
ATING,
MAINTENANCE
INSTRUCTIONS. Space is provided in Chapter 2 of this
book to insert the Operator's Manual and Parts Catalog
for your machine. Additional copies of the Operator's
Manual and Parts Catalog are available on the internet
at www.Toro.com.
The Toro Company reserves the right to change product
specifications or this publication without notice.
Groundsmaster
AND
ADJUSTMENT
E The Toro Company - - 2010

Service Manual

This safety symbol means DANGER, WARNING,
or CAUTION, PERSONAL SAFETY INSTRUC-
TION. When you see this symbol, carefully read
the instructions that follow. Failure to obey the
instructions may result in personal injury.
NOTE: A NOTE will give general information about the
correct operation, maintenance, service, testing or re-
pair of the machine.
IMPORTANT: The IMPORTANT notice will give im-
portant instructions which must be followed to pre-
vent damage to systems or components on the
machine.
Part No. 10178SL
R
4300- -D

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Summary of Contents for Toro GroundsmasterR 4300-D

  • Page 1: Service Manual

    NOTE: A NOTE will give general information about the correct operation, maintenance, service, testing or re- The Toro Company reserves the right to change product pair of the machine. specifications or this publication without notice. IMPORTANT: The IMPORTANT notice will give im-...
  • Page 2 This page is intentionally blank. Groundsmaster 4300--D...

  • Page 3: Table Of Contents

    Table Of Contents Chapter 1 - - Safety Chapter 5 - - Electrical System Safety Instructions ......1 -- 2 General Information .
  • Page 4 This page is intentionally blank. Groundsmaster 4300--D...

  • Page 5: Safety Instructions 1

    Chapter 1 Safety Table of Contents SAFETY INSTRUCTIONS ..... . Before Operating ......While Operating .

  • Page 6: Safety Instructions

    A replacement Operator’s Manual is available on the Internet at www.Toro.com. B. Do not remove machine fuel tank cap while en- gine is hot or running. 2. Keep all shields, safety devices and decals in place.

  • Page 7: While Operating

    While Operating 1. Sit on the seat when starting and operating the ma- 5. Before getting off the seat: chine. A. Ensure that traction pedal is in NEUTRAL. 2. Before starting the engine: B. Lower and disengage cutting decks and wait for A.

  • Page 8: Maintenance And Service

    Keep bystanders away. tification of the machine, use genuine Toro replacement parts and accessories. Replacement parts and acces- 10.Do not overspeed the engine by changing governor sories made by other manufacturers may result in non- setting.

  • Page 9: Jacking Instructions

    Jacking Instructions CAUTION When changing attachments, tires or perform- ing other service, use correct supports, hoists and jacks. Make sure machine is parked on a solid, level surface such as a concrete floor. Prior to raising machine, remove any attach- ments that may interfere with the safe and proper raising of the machine.

  • Page 10: Safety And Instruction Decals

    Groundsmas- ter. If any decal becomes illegible or damaged, install a new decal. Part numbers for decals are listed in your Part Catalog. Order replacement decals from your Au- thorized Toro Distributor. Safety Page 1 - - 6 Groundsmaster 4300--D...

  • Page 11: Product Records

    Chapter 2 Product Records and Maintenance Table of Contents PRODUCT RECORDS ......MAINTENANCE ....... EQUIVALENTS AND CONVERSIONS .

  • Page 12: Equivalents And Conversions

    Equivalents and Conversions 0.09375 Product Records and Maintenance Page 2 - - 2 Groundsmaster 4300--D...

  • Page 13: Torque Specifications

    For critical applications, as determined reduced by 25% for lubricated fasteners to achieve by Toro, either the recommended torque or a torque that the similar stress as a dry fastener. Torque values may is unique to the application is clearly identified and spe- also have to be reduced when the fastener is threaded cified in this Service Manual.
  • Page 14 Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series) Grade 1, 5 & SAE Grade 1 Bolts, Screws, Studs & SAE Grade 5 Bolts, Screws, Studs & SAE Grade 8 Bolts, Screws, Studs & Thread Size 8 with Thin Sems with Regular Height Nuts Sems with Regular Height Nuts Sems with Regular Height Nuts...
  • Page 15 Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Series) Class 8.8 Bolts, Screws and Studs with Class 10.9 Bolts, Screws and Studs with Thread Size Thread Size Regular Height Nuts Regular Height Nuts Regular Height Nuts Regular Height Nuts (Class 8 or Stronger Nuts) (Class 10 or Stronger Nuts) M5 X 0.8...
  • Page 16 Other Torque Specifications SAE Grade 8 Steel Set Screws Wheel Bolts and Lug Nuts Recommended Torque Thread Size Recommended Torque** Thread Size Thread Size Square Head Hex Socket 7/16 -- 20 UNF 65 + 10 ft--lb 88 + 14 N--m Grade 5 1/4 -- 20 UNC 140 + 20 in--lb...

  • Page 17: General Information 3

    Service and repair parts for Kubota diesel engines are troubleshooting, testing and repair of the Kubota diesel supplied through your local Toro Distributor. If a parts list engine used in the Groundsmaster 4300--D. is not available, be sure to provide your distributor with the Toro model and serial number.

  • Page 18: Specifications 3

    Specifications Item Description Make / Designation Kubota V1505- -T- -E3B, 4- -stroke, Liquid Cooled, OHV, Turbocharged Diesel Number of Cylinders Bore x Stroke 3.07 in x 3.09 in (78 mm x 78.4 mm) Total Displacement 91.4 in (1498 cc) Compression Ratio 23:1 Firing Order 1 (fan end) - - 3 - - 4 (flywheel end) - - 2...

  • Page 19: Chapter 3 - - Kubota Diesel Engine

    Adjustments Adjust Throttle Control Proper throttle operation is dependent upon proper ad- justment of throttle control. NOTE: The throttle cable swivel should be positioned in the lowest hole in the speed control lever. 1. Move throttle control lever on control console to FAST position.

  • Page 20: Service And Repairs

    Service and Repairs Fuel System RIGHT FRONT Figure 2 1. Fuel cap 8. Hose clamp 14. Draincock 2. Bushing 9. Hose clamp 15. Fuel supply hose 3. Washer head screw (2 used) 10. Fuel tank 16. Fuel return hose 4. Flange nut (3 used) 11.

  • Page 21: Specifications 4

    3. Open draincock on bottom of fuel tank and allow tank to fully drain. Close draincock. DANGER NOTE: Before removing fuel hoses from tank fittings, label hoses for assembly purposes. Because diesel fuel is highly flammable, use caution when storing or handling it. Do not 4.

  • Page 22: Air Cleaner

    Air Cleaner Thread Sealant 12 to 15 in- -lb (1.4 to 1.6 N- -m) VACUATOR DIRECTION RIGHT FRONT Figure 4 1. Air cleaner assembly 8. Hose 15. Flange head screw (4 used) 2. Indicator 9. Mount bracket 16. Air cleaner mounting band 3.
  • Page 23 Removal (Fig. 4) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. Raise and support hood. 2. Remove air cleaner components as needed using Figures 4 as a guide. 3.

  • Page 24: Exhaust System

    Exhaust System RIGHT FRONT Figure 6 1. Gasket 7. Muffler support bracket 13. Exhaust header 2. Lock washer (2 used) 8. Flange head screw (2 used) 14. Flange head screw (2 used) 3. Flange nut (4 used) 9. Tail pipe bracket 15.
  • Page 25 Removal (Fig. 6) 1 (FIRST) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. Raise and support hood. 4 (LAST) CAUTION The muffler and exhaust pipe may be hot. To avoid possible burns, allow the engine and ex- haust system to cool before working on the ex- haust system.
  • Page 26 Radiator RIGHT FRONT 43 44 Figure 8 1. Overflow bottle 17. Flange head screw (8 used) 33. Flange head screw 2. Hose clamp (3 used) 18. Clamp (2 used) 34. Lock nut 3. Hose 19. Cap screw (2 used) 35. O- - ring 4.
  • Page 27 Removal (Fig. 8) 10.Carefully pull radiator assembly from the machine. Plug radiator and hose openings to prevent contamina- 1. Park machine on a level surface, lower cutting tion. decks, stop engine, apply parking brake and remove key from the ignition switch. 11.
  • Page 28 Engine 34 to 42 ft- -lb (47 to 56 N- -m) RIGHT FRONT Figure 9 1. Engine assembly 12. Lock washer 23. Negative battery cable 2. Cap screw (12 used) 13. Lock washer 24. Air cleaner stand 3. Temperature sender 14.
  • Page 29 Removal (Fig. 9) 1. Park machine on a level surface, lower cutting decks, stop engine and remove key from the ignition switch. Chock wheels to keep the machine from moving. 2. Open and support hood. 3. Disconnect negative (--) cable and then positive (+) cable from the battery.
  • Page 30 9. Disconnect hydraulic transmission drive shaft from Installation (Fig. 9) engine (see Hydraulic Transmission Drive Shaft Re- 1. Locate machine on a level surface with cutting decks moval in the Service and Repairs section of Chapter 4 lowered and key removed from the ignition switch. -- Hydraulic System).
  • Page 31 7. Remove plugs installed in hoses during disassem- 9. Install air cleaner (see Air Cleaner Installation in this bly. Connect hoses to the engine: section). A. Connect fuel supply and fuel return hoses to en- 10.Install exhaust system to machine (see Exhaust gine fittings (Fig.
  • Page 32 This page is intentionally blank. Kubota Diesel Engine Page 3 - - 16 Groundsmaster 4300--D...

  • Page 33: General Information 4

    Chapter 4 Hydraulic System Table of Contents SPECIFICATIONS ......SERVICE AND REPAIRS .

  • Page 34: Specifications

    Specifications Item Description Piston (Traction) Pump Sauer--Danfoss, LPV Closed Circuit Axial Piston Design Maximum Pump Displacement (per revolution) 2.14 in (35 cc) Gear Pump Casappa 4 section, positive displacement gear type pump Section P1/P2 Displacement (per revolution) 1.03 in (16.84 cc) Section P3 Displacement (per revolution) 0.37 in (6.1 cc)

  • Page 35: General Information

    General Information Operator’s Manual The Operator’s Manual provides information regarding the operation, general maintenance and maintenance intervals for your Groundsmaster 4300--D. Refer to that publication for additional information when servicing the machine. Check Hydraulic Fluid The hydraulic system on your Groundsmaster is de- signed to operate on high quality hydraulic fluid.

  • Page 36: Hydraulic Hoses

    If the hose has an elbow at one end, tighten the swivel nut on that end before tightening the nut on the straight end of the hose. For additional hydraulic hose information, refer to Toro Service Training Book, Hydraulic Hose Servicing (Part Number 94813SL).
  • Page 37 Hydraulic Hose and Tube Installation (O- -Ring Face Seal Fitting) 1. Make sure threads and sealing surfaces of the hose/ C. Use a second wrench to tighten the nut to the cor- tube and the fitting are free of burrs, nicks, scratches or rect Flats From Wrench Resistance (F.F.W.R.).
  • Page 38 Hydraulic Fitting Installation (SAE Straight Thread O- -Ring Fitting into Component Port) Non- -Adjustable Fitting (Fig. 6) 5. If a torque wrench is not available, or if space at the port prevents use of a torque wrench, an alternate meth- 1.
  • Page 39 Adjustable Fitting (Fig. 8) 1. Make sure all threads and sealing surfaces of fitting and component port are free of burrs, nicks, scratches or any foreign material. 2. As a preventative measure against leakage, it is rec- ommended that the O--ring be replaced any time the connection is opened.

  • Page 40: Relieving Hydraulic System Pressure

    (see Special Tools in this chapter) The alternative to using the Toro high flow hydraulic filter into the circuit. This filter should be used when connect- kit after a traction circuit component failure would be to...

  • Page 41: Hydraulic Schematic

    Hydraulic Schematic Groundsmaster 4300--D Page 4 - - 9 Hydraulic System...

  • Page 42: Hydraulic Flow Diagrams

    Hydraulic Flow Diagrams Figure 10 Hydraulic System Page 4 - - 10 Groundsmaster 4300--D...
  • Page 43 Traction Circuit The hydraulic traction circuit consists of a variable dis- Gear pump section (P3) supplies oil flow for the steering placement piston pump (P5) connected in a closed loop, circuit and also provides a constant supply of charge oil parallel circuit to four (4) orbital roller vane wheel mo- to the closed loop traction circuit.
  • Page 44 Figure 11 Hydraulic System Page 4 - - 12 Groundsmaster 4300--D...

  • Page 45: Mow Circuit

    Mow Circuit A four section gear pump is coupled to the piston (trac- a manifold sensing line. This flow passes through an ori- tion) pump. Gear pump sections (P1) and (P2) supply fice which causes a pressure differential that shifts logic hydraulic flow for the mow circuit.

  • Page 46: Mow Circuit Cutting Deck Blade Braking

    Mow Circuit Cutting Deck Blade Braking When the operator turns the PTO switch OFF or if the FROM FROM decks are raised with the PTO switch ON, the deck con- GEAR GEAR PUMP PUMP trol manifold proportional relief valves (PRV1 and PRV2) are de--energized causing circuit flow to bypass the deck motors and return to the reservoir out manifold port T (refer to information in Mow Circuit in this section).
  • Page 47 This page is intentionally blank. Groundsmaster 4300--D Page 4 - - 15 Hydraulic System...
  • Page 48 Figure 16 Hydraulic System Page 4 - - 16 Groundsmaster 4300--D...

  • Page 49: Lift Circuit: Raise Cutting Decks

    Lift Circuit: Raise Cutting Decks A four section gear pump is coupled to the piston (trac- LIFT CIRCUIT: NOT RAISING OR LOWERING tion) pump. Gear pump section (P4) supplies hydraulic flow to the lift control manifold and lift cylinders. The gear pump takes its suction from the hydraulic reservoir.
  • Page 50 Figure 18 Hydraulic System Page 4 - - 18 Groundsmaster 4300--D...

  • Page 51: Lift Circuit: Lower Cutting Decks

    Lift Circuit: Lower Cutting Decks A four section gear pump is coupled to the piston (trac- Counterbalance tion) pump. Gear pump section (P4) supplies hydraulic Once the cutting decks are fully lowered, the lift control flow to the lift control manifold and lift cylinders. The gear manifold proportional relief valve (PRV) maintains back pump takes its suction from the hydraulic reservoir.
  • Page 52 Figure 20 Hydraulic System Page 4 - - 20 Groundsmaster 4300--D...

  • Page 53: Steering Circuit

    Steering Circuit A four section gear pump is coupled to the piston (trac- Right Turn (Fig. 20) tion) pump. Gear pump section P3 supplies hydraulic When a right turn is made with the engine running, the flow to the steering control valve and for the traction turning of the steering wheel positions the steering con- charge circuit.

  • Page 54: Special Tools

    Special Tools Order Special Tools from your Toro Distributor. Hydraulic Pressure Test Kit Use to take various pressure readings for diagnostic tests. Quick disconnect fittings provided attach directly to mating fittings on machine test ports without tools. A high pressure hose is provided for remote readings. Kit contains one each: 1000 PSI (70 Bar), 5000 PSI (350 Bar) and 10000 PSI (700 Bar) gauges.
  • Page 55 The O--ring kit includes O--rings in a variety of sizes for face seal and port seal hydraulic connections. It is rec- ommended that O--rings be replaced whenever a hy- draulic connection is loosened. Toro Part Number: 117- -2727 Figure 25 Groundsmaster 4300--D Page 4 - - 23...

  • Page 56: Hydraulic Test Fitting Kit

    Toro Part Number: TOR6011 NOTE: Use of Hydraulic Hose Kit TOR6007 is recom- mended when using the high flow hydraulic filter kit. NOTE: Replacement filter element is Toro part number TOR6012. Filter element cannister tightening torque is 25 ft- -lb (34 N- -m).

  • Page 57: Measuring Container

    Wheel Hub Puller The wheel hub puller allows safe removal of the wheel hub from the wheel motor shaft. Toro Part Number: TOR6004 Figure 29 Measuring Container Use this graduated container for doing hydraulic motor efficiency testing (motors with case drain lines only).

  • Page 58: Troubleshooting

    Troubleshooting The cause of an improperly functioning hydraulic sys- The charts that follow contain information to assist in tem is best diagnosed with the use of proper testing troubleshooting. There may possibly be more than one equipment and a thorough understanding of the com- cause for a machine malfunction.

  • Page 59: Traction Circuit Problems

    Traction Circuit Problems Problem Possible Causes Neutral is difficult to find or machine Traction control linkage is misadjusted, disconnected, binding or operates in one direction only damaged. Piston (traction) pump check relief valve is not seating or is damaged (NOTE: Piston (traction) pump check relief valves for forward and reverse are identical and can be reversed for testing purposes).

  • Page 60: Mow Circuit Problems

    Traction Circuit Problems (Continued) Problem Possible Causes Wheel motor will not turn Brakes are binding. Wheel motor is worn or damaged (NOTE: If a traction circuit component has internal wear or damage, it is possible that other traction circuit components are also damaged). Wheel motors will not hold load when Charge pressure is low.

  • Page 61: Lift Circuit Problems

    Lift Circuit Problems Problem Possible Causes Single cutting deck raises slowly or not Cutting deck has excessive debris buildup. at all Lift arm or lift cylinder is binding. Flow control orifice in lift control manifold for the affected cutting deck is plugged, stuck or damaged.

  • Page 62: Steering Circuit Problems

    Steering Circuit Problems Problem Possible Causes Steering inoperative or sluggish Steering components (e.g. tie rods, steering cylinder ends) are worn or binding. Steering cylinder is binding. Oil level in hydraulic reservoir is low (other hydraulic systems are affected as well). Steering relief valve (R10) in steering control valve is stuck or damaged.
  • Page 63 This page is intentionally blank. Groundsmaster 4300--D Page 4 - - 31 Hydraulic System...

  • Page 64: Testing

    Testing The most effective method for isolating problems in the 2. Review all test steps before starting the test proce- hydraulic system is by using hydraulic test equipment dure. such as pressure gauges and flow meters in the circuits 3. Before testing, check all control linkages for improp- during various operational checks (see the Special er adjustment, binding or broken parts.
  • Page 65 Which Hydraulic Tests Are Necessary? 2. If a cutting (mow) circuit problem exists, consider performing one or more of the following tests: Relief Before beginning any hydraulic test, identify if the prob- Valve (PRV1) and (PRV2) Pressure, Gear Pump (P1) lem is related to the traction circuit, cutting (mow) circuit, and (P2) Flow and/or Deck Motor Efficiency Tests.

  • Page 66: Traction Circuit Relief Valve (R3) And (R4) Pressure Test

    Traction Circuit Relief Valve (R3) and (R4) Pressure Test TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (FRONT CUTTING UNITS) TO LIFT CONTROL MANIFOLD TO MOW CONTROL (REAR CUTTING UNITS) FORWARD (R3) RELIEF GEAR VALVE TEST SHOWN PUMP BYPASS VALVE CROSSTRAX...
  • Page 67 5. Connect a 5000 PSI (350 bar) pressure gauge to test port. 6. After installing pressure gauge, start engine and run at idle speed. Check for any hydraulic leakage from test connections and correct before proceeding with test. 7. Move throttle to full speed (3200 RPM). 8.

  • Page 68: Traction Circuit Charge Pressure Test

    Traction Circuit Charge Pressure Test TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (FRONT CUTTING UNITS) TO LIFT CONTROL MANIFOLD TO MOW CONTROL (REAR CUTTING UNITS) GEAR PUMP BYPASS VALVE CROSSTRAX MANIFOLD PISTON (TRACTION) PRESSURE PUMP GAUGE FROM STEERING CONTROL VALVE OIL FILTER REMOVED Figure 36...

  • Page 69: Service And Repairs 4

    4. Raise and support operator seat to allow access to NOTE: If gear pump (P3) is worn or damaged, both hydraulic pump assembly. charge circuit and steering circuit will be affected. 5. Thoroughly clean ends of hydraulic tubes that con- 12.After charge pressure testing is completed, make nect to the oil filter (Fig.

  • Page 70: Gear Pump (P3) Flow Test

    Gear Pump (P3) Flow Test (Using Tester with Pressure Gauges and Flow Meter) TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (FRONT CUTTING UNITS) TO LIFT CONTROL MANIFOLD TO MOW CONTROL (REAR CUTTING UNITS) GEAR PUMP BYPASS VALVE CROSSTRAX MANIFOLD PISTON...
  • Page 71 FLOW TESTER READING TO BE: A pump in good CAUTION condition should have a flow of approximately 4.9 GPM (18.5 LPM) at 800 PSI (55 bar). 11. Open the tester flow control valve, stop engine and Before opening hydraulic system, operate all hy- record test results.

  • Page 72: Front Wheel Motor Efficiency Test

    Front Wheel Motor Efficiency Test TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (FRONT CUTTING UNITS) TO LIFT CONTROL MANIFOLD TO MOW CONTROL (REAR CUTTING UNITS) GEAR PUMP BYPASS VALVE CROSSTRAX MANIFOLD TESTER PISTON (TRACTION) PUMP RH FRONT WHEEL FROM STEERING CONTROL VALVE MOTOR EFFICIENCY TEST SHOWN...
  • Page 73 14.To test individual front wheel motors: CAUTION A. Remove front wheel from wheel motor that is not being tested. Remove wheel shield to allow access to hydraulic tubes and fittings on wheel motor. Re- Before opening hydraulic system, operate all hy- move fasteners that secure front hydraulic tube r-- draulic controls to relieve system pressure and clamps to frame.

  • Page 74: Piston (Traction) Pump Flow Test

    Piston (Traction) Pump Flow Test (Using Tester with Flow Meter and Pressure Gauge) TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (FRONT CUTTING UNITS) TO LIFT CONTROL MANIFOLD TO MOW CONTROL (REAR CUTTING UNITS) GEAR PUMP BYPASS VALVE CROSSTRAX MANIFOLD TESTER...
  • Page 75 4. Make sure that traction pedal is adjusted to the neu- 12.Observe flow gauge. Flow indication should be tral position. Also, ensure that traction pump is at full approximately 28 GPM (106 LPM). stroke when traction pedal is pushed into fully forward 13.Release traction pedal to the neutral position, open position.

  • Page 76: Relief Valve (Prv1) And (Prv2) Pressure Test

    Relief Valve (PRV1) and (PRV2) Pressure Test ROTATION DIRECTION TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO LIFT CONTROL MANIFOLD MOTOR MOTOR INLET OUTLET GEAR PUMP BYPASS CASE DRAIN VALVE CROSSTRAX MANIFOLD PISTON (TRACTION) PUMP FROM STEERING CONTROL VALVE TESTER RELIEF VALVE (PRV1) TEST SHOWN DECK...
  • Page 77 3. Read Precautions For Hydraulic Testing in this sec- 10.Watch pressure gauge carefully while slowly closing tion. the tester flow control valve. As the relief valve lifts, the pressure gauge needle will momentarily stop. CAUTION NOTE: Once the relief valve has opened, system pres- sure may continue to increase.

  • Page 78: Gear Pump (P1) And (P2) Flow Test

    Gear Pump (P1) and (P2) Flow Test (Using Tester with Pressure and Flow Capabilities) TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO LIFT CONTROL MANIFOLD TESTER GEAR PUMP (P1) GEAR PUMP FLOW TEST SHOWN BYPASS VALVE CROSSTRAX MANIFOLD PISTON (TRACTION) PUMP FROM STEERING CONTROL VALVE DECK...
  • Page 79 3. Read Precautions For Hydraulic Testing in this sec- 11. If flow is less than 12.1 GPM (45.8 LPM) or a pres- tion. sure of 1500 PSI (103 bar) cannot be obtained, consider that a pump problem exists. Check for restriction in pump intake line.

  • Page 80: Deck Motor Efficiency Test

    Deck Motor Efficiency Test (Using Tester with Pressure Gauges and Flow Meter) ROTATION DIRECTION MOTOR MOTOR INLET OUTLET CASE DRAIN Install tester in series between fitting and return hose at motor outlet. TESTER Disconnect case drain hose at traction deck bulkhead MEASURING #5 (RH FRONT) DECK MOTOR...
  • Page 81 Before opening hydraulic system, operate all hy- nected motor case drain hose into a container gra- draulic controls to relieve system pressure and duated in ounces or milliliters (e.g. Toro #TOR4077) and avoid injury from pressurized hydraulic oil. See Relieving Hydraulic System Pressure in the Gen- collect hydraulic fluid for 15 seconds.

  • Page 82: Lift Relief Valve (Prv) Pressure Test

    Lift Relief Valve (PRV) Pressure Test TO STEERING CONTROL VALVE TO DECK CONTROL MANIFOLD (FRONT CUTTING UNITS) TO DECK CONTROL MANIFOLD (REAR CUTTING UNITS) GEAR PUMP PUMP (P5) INTERNAL CASE DRAIN PRESSURE GAUGE FROM MOW CONTROL MANIFOLD LIFT CONTROL MANIFOLD Figure 51 The lift relief valve (PRV) pressure test should be per- CAUTION...
  • Page 83 5. Thoroughly clean test port (G4) on bottom of lift con- trol manifold. Connect a 5000 PSI (350 bar) pressure gauge to test port. 6. After installing pressure gauge to manifold test port, start engine and run at idle speed. Check for any hydrau- lic leakage from test connections and correct before pro- ceeding with test.

  • Page 84: Gear Pump (P4) Flow Test

    Gear Pump (P4) Flow Test (Using Tester with Pressure Gauges and Flow Meter) TO STEERING CONTROL VALVE TO DECK CONTROL MANIFOLD (FRONT CUTTING UNITS) TO DECK CONTROL MANIFOLD (REAR CUTTING UNITS) GEAR PUMP PUMP (P5) INTERNAL CASE DRAIN FROM MOW CONTROL MANIFOLD LIFT CONTROL...
  • Page 85 4. Raise and support operator seat to allow access to 13.After testing is completed, make sure that engine is hydraulic pump. stopped, then relieve hydraulic system pressure (see Relieving Hydraulic System Pressure in the General In- 5. Thoroughly clean both ends of the hydraulic hose formation section of this chapter).

  • Page 86: Lift Cylinder Internal Leakage Test

    Lift Cylinder Internal Leakage Test TO STEERING CONTROL VALVE TO DECK CONTROL MANIFOLD (FRONT CUTTING UNITS) TO DECK CONTROL MANIFOLD (PARTIALLY RAISED) (REAR CUTTING UNITS) GEAR PLUG PUMP PUMP (P5) INTERNAL CASE DRAIN CHECK FOR CYLINDER EXTENDING FROM MOW CONTROL MANIFOLD LIFT CONTROL...
  • Page 87 IMPORTANT: When capping lift cylinder fitting and hydraulic hose end, use a steel cap and plug to en- sure that fluid leakage will not occur. Plastic plugs will not hold hydraulic pressure that will be devel- oped during this test procedure. 4.

  • Page 88: Steering Relief Valve (R10) Pressure Test

    Steering Relief Valve (R10) Pressure Test TO DECK CONTROL MANIFOLD (FRONT CUTTING UNITS) TO LIFT CONTROL MANIFOLD TO DECK CONTROL MANIFOLD (REAR CUTTING UNITS) GEAR PUMP PUMP (P5) INTERNAL CASE DRAIN TO TRACTION CHARGE CIRCUIT STEERING WHEEL TURNED FOR RIGHT TURN STEERING CONTROL VALVE...
  • Page 89 The steering relief valve (R10) pressure test should be 12.If specification is not met, inspect steering control performed to make sure that the steering circuit relief valve (see Steering Control Valve Service in the Service pressure is correct. and Repairs section of this chapter). Procedure for Steering Relief Valve Pressure Test: 13.After testing is completed, make sure that engine is stopped, then relieve hydraulic system pressure (see...

  • Page 90: Steering Cylinder Internal Leakage Test

    Steering Cylinder Internal Leakage Test STEERING WHEEL TURNED FOR RIGHT TURN STEERING CONTROL VALVE LOOK FOR LEAKAGE STEERING CYLINDER (FULLY EXTENDED) Figure 61 The steering cylinder internal leakage test should be NOTE: Steering circuit operation will be affected by performed if a steering problem is identified. This test rear tire pressure, steering cylinder binding, extra will determine if the steering cylinder is faulty.
  • Page 91 Procedure for Steering Cylinder Internal Leakage Test: 1. Make sure hydraulic oil is at normal operating tem- perature. 2. Park machine on a level surface with the cutting decks lowered and PTO switch off. Make sure engine is off. Apply the parking brake. 3.

  • Page 92: Service And Repairs

    Service and Repairs General Precautions for Removing and Installing Hydraulic System Components Before Repair or Replacement of Components After Repair or Replacement of Components 1. Before removing any parts from the hydraulic sys- 1. If a component failure occurred in the closed loop tem, park machine on a level surface, engage parking traction circuit (e.g.

  • Page 93: Check Hydraulic Lines And Hoses

    Check Hydraulic Lines and Hoses Check hydraulic lines and hoses daily for leaks, kinked CAUTION lines, loose mounting supports, wear, loose fittings or deterioration. Make all necessary repairs before operat- ing the machine. Keep body and hands away from pin hole leaks or nozzles that eject hydraulic fluid under high pressure.

  • Page 94: Filtering Closed--Loop Traction Circuit

    (5) minutes. and key removed from ignition switch. IMPORTANT: If using a filter that is not the Toro high 2. Raise and support machine so all wheels are off the flow filter that is bi- -directional, do not press the ground (see Jacking Instructions in Chapter 1 -- Safety).

  • Page 95: Hydraulic System Start--Up

    Hydraulic System Start- -up NOTE: When initially starting the hydraulic system with 7. Make sure traction pedal is in neutral and the PTO new or rebuilt components such as pumps, wheel mo- switch is OFF. Turn ignition key switch to start; engage tors or lift cylinders, it is important that this start--up pro- starter for ten (10) seconds to prime hydraulic pumps.

  • Page 96: Hydraulic Reservoir

    Hydraulic Reservoir 105 to 115 ft- -lb (143 to 155 N- -m) 10 11 26 to 32 ft- -lb (36 to 43 N- -m) RIGHT FRONT Figure 64 1. Suction strainer 10. Flat washer 19. Oil filter 2. Tank cap 11.
  • Page 97 Removal (Fig. 64) Installation (Fig. 64) 1. Park the machine on a level surface, engage parking 1. If fittings were removed from reservoir, lubricate and brake, lower cutting decks and stop engine. Remove place new O--rings onto fittings. Install fittings into reser- key from the ignition switch.

  • Page 98: Hydraulic Pump Drive Shaft

    Hydraulic Pump Drive Shaft RIGHT FRONT Permatex Threadlocker 34 to 42 ft- -lb (46 to 56 N- -m) Antiseize Lubricant Figure 65 1. Piston (traction) pump 5. Cap screw (2 used) 8. Drive shaft assembly 2. Flange nut (2 used) 6.
  • Page 99 Removal (Fig. 65) Installation (Fig. 65) 1. Park the machine on a level surface, engage parking 1. Apply antiseize lubricant to traction pump input shaft. brake, lower cutting decks and stop engine. Remove 2. Position drive shaft assembly to engine and pump in- key from the ignition switch.

  • Page 100: Hydraulic Pump Assembly

    Hydraulic Pump Assembly Antiseize Lubricant RIGHT FRONT Figure 67 1. Drive shaft assembly 14. Guard hoop 27. Hydraulic hose 2. Cap screw (2 used) 15. Flange nut (6 used) 28. Hydraulic hose 3. Flange head screw (2 used) 16. Manifold 29.

  • Page 101: Service And Repairs 5

    NOTE: Traction pump and gear pump should be re- moved from machine as an assembly. Once removed from machine, pumps can be separated for service. Removal (Fig. 67) 1. Park the machine on a level surface, engage parking brake, lower cutting decks and stop engine. Remove key from the ignition switch.

  • Page 102: General Information 6

    9. Loosen and remove two (2) carriage screws (item 12) and flange nuts (item 15) that secure pump support bracket (item 8) to frame. 10.Remove two (2) flange screws (item 3) and flange nuts (item 9) that secure traction pump flange to ma- chine frame.
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  • Page 104: Piston (Traction) Pump Service

    Piston (Traction) Pump Service 32 33 Figure 71 1. Traction pump housing 19. Control arm 37. Cylinder block kit 2. Auxiliary shaft 20. Screw 38. Valve plate 3. Retaining ring 21. Charge relief poppet 39. Slotted pin 4. Ball bearing 22.
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  • Page 106: Gear Pump Service

    Gear Pump Service 33 ft- -lb (45 N- -m) 33 ft- -lb (45 N- -m) Figure 72 1. Front cover 9. Body (P1 section) 17. Drive gear 2. Dowel pin (16 used) 10. Flange (3 used) 18. Driven gear 3. Square section seal (8 used) 11.
  • Page 107 IMPORTANT: Mark the relative positions of the gear teeth and the thrust plates so they can be reassem- bled in the same position. Do not touch the gear sur- faces as residue on hands may be corrosive to gear DIAGONAL LINE finish.

  • Page 108: Front Wheel Motors

    Front Wheel Motors 80 to 100 ft- -lb (109 to 135 N- -m) RIGHT 70 to 90 ft- -lb (95 to 122 N- -m) FRONT 315 to 385 ft- -lb (427 to 521 N- -m) Figure 74 1. LH wheel motor 12.

  • Page 109: Special Tools 6

    12.Thoroughly clean hydraulic line ends and fittings on CAUTION wheel motor to prevent hydraulic system contamination. 13.Label hydraulic connections at wheel motor for as- sembly purposes. Before opening hydraulic system, operate all hy- draulic controls to relieve system pressure and 14.Disconnect hydraulic lines from fittings on wheel mo- avoid injury from pressurized hydraulic oil.

  • Page 110: Service And Repairs 6

    6. Install new lock nut (item 17) onto the wheel motor 10.Install front wheel to machine (see Front Wheel shaft to secure wheel hub to motor shaft. Installation in the Service and Repairs section of Chap- ter 6 -- Chassis). 7.
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  • Page 112: Rear Wheel Motors

    Rear Wheel Motors 70 to 90 ft- -lb (95 to 122 N- -m) RIGHT FRONT 270 to 330 ft- -lb (366 to 447 N- -m) Figure 75 1. Lug nut (5 used per wheel) 6. Wheel stud (5 used per hub) 11.

  • Page 113: Special Tools 7

    Removal (Fig. 75) 10.Label all hydraulic hoses for assembly purposes. Remove hydraulic hoses from fittings on wheel motor. Allow hoses to drain into a suitable container. CAUTION 11. Put clean plugs in disconnected hydraulic hoses and fittings to prevent system contamination. Before opening hydraulic system, operate all hy- 12.Support the wheel motor to prevent it from falling dur- draulic controls to relieve system pressure and...
  • Page 114 8. Place wheel hub on motor shaft and secure with new 11. Torque wheel hub lock nut (item 14) from 270 to 330 lock nut (item 14). ft- -lb (366 to 447 N- -m). 9. Install wheel assembly to the machine and secure 12.Torque wheel lug nuts evenly in a crossing pattern with five (5) lug nuts.
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  • Page 116: Wheel Motor Service

    Wheel Motor Service 45 to 55 ft- -lb (61 to 75 N- -m) Figure 76 1. Cap screw (7 used) 9. Vane (7 used) 17. Inner bearing 2. End cover 10. Rotor 18. Shaft seal 3. Body seal (5 used) 11.
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  • Page 118: Crosstrax Tm Awd Manifold

    CrossTrax AWD Manifold RIGHT FRONT Figure 77 1. AWD manifold 6. Hydraulic fitting (7 used) 11. Cap screw (3 used) 2. Hydraulic tube 7. O- -ring 12. Lock washer (3 used) 3. Hydraulic tube 8. Dust cap (2 used) 13. Spacer (3 used) 4.
  • Page 119 6. Put caps or plugs on disconnected lines and fittings 3. Remove caps and plugs from disconnected lines to prevent contamination. and fittings. 7. Support manifold to prevent it from falling. Remove 4. Lubricate and install new O--ring(s) on manifold fit- three (3) cap screws and lock washers that secure man- tings.

  • Page 120: Crosstrax Awd Manifold Service

    CrossTrax AWD Manifold Service 220 in- -lb 25 ft- -lb (24.8 N- -m) (33 N- -m) 220 in- -lb (24.8 N- -m) 25 ft- -lb (33 N- -m) 220 in- -lb (24.8 N- -m) 46 ft- -lb (62 N- -m) 120 in- -lb (13.5 N- -m) Figure 78...
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  • Page 122: Deck Control Manifold

    Deck Control Manifold RIGHT FRONT Figure 79 1. Deck control manifold 6. O- -ring 10. Flange head screw (3 used) 2. O- -ring 7. Hydraulic hose 11. Hydraulic tube 3. Diagnostic fitting 8. O- -ring 12. Hydraulic tube 4. Dust cap 9.

  • Page 123: Service And Repairs 7

    Removal (Fig. 79) 2. Position deck control manifold to frame. Install three (3) flange head screws but do not fully tighten. 1. Park the machine on a level surface, engage parking brake, lower cutting decks and stop engine. Remove 3. Remove caps and plugs from disconnected lines key from the ignition switch.

  • Page 124: Hydraulic Schematic 8

    Deck Control Manifold Service 50 ft- -lb (68 N- -m) 25 ft- -lb 35 ft- -lb (33 N- -m) (47 N- -m) 20 ft- -lb (27 N- -m) 50 ft- -lb (68 N- -m) 20 ft- -lb 20 ft- -lb (27 N- -m) (27 N- -m) 35 ft- -lb...
  • Page 125 NOTE: The deck control manifold uses several zero CAUTION leak plugs. These plugs have a tapered sealing surface on the plug head that is designed to resist vibration in- duced plug loosening. The zero leak plugs also have an O--ring to provide a secondary seal. If zero leak plug re- Use eye protection such as goggles when using compressed air for cartridge valve cleaning.

  • Page 126: Cutting Deck Motor

    Cutting Deck Motor RIGHT FRONT Figure 82 1. Hydraulic deck motor (#4) 9. Hydraulic hose 17. Hydraulic hose 2. O- -ring 10. 90 hydraulic fitting 18. Hydraulic hose 3. 90 hydraulic fitting 11. Hydraulic hose 19. Hydraulic hose 4. O- -ring 12.
  • Page 127 5. Put caps or plugs on disconnected hoses and fittings to prevent contamination. 6. Remove two (2) socket head screws and flat wash- ers that secure hydraulic motor to the cutting deck (Fig. 84). Remove hydraulic motor and O--ring from deck. 7.

  • Page 128: Cutting Deck Motor Service

    Cutting Deck Motor Service 33 ft- -lb (45 N- -m) 26 ft- -lb (35 N- -m) 26 ft- -lb (35 N- -m) Figure 86 1. Dust seal 8. Front wear plate 14. Rear wear plate 2. Retaining ring 9. Drive gear 15.
  • Page 129 4. Loosen cap screws from the rear cover. A. Gear shafts should be free of rough surfaces and excessive wear at bushing points and sealing areas. 5. Remove motor from the vise. Turn motor so that the Scoring, rough surfaces or wear on gear shafts indi- shaft end is facing down.
  • Page 130 Assembly (Fig. 86) 8. Install rear wear plate with pressure seal side up and open side of the pressure seal pointing to the inlet side NOTE: When assembling the motor, check the marker of the motor. line on each part to make sure the parts are properly aligned during assembly.
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  • Page 132: Lift Control Manifold

    Lift Control Manifold RIGHT FRONT Figure 90 1. Lift control manifold 7. Hydraulic hose 13. O- -ring 2. Flange head screw (2 used) 8. Hydraulic hose 14. Diagnostic fitting 3. O- -ring 9. Hydraulic hose 15. O- -ring 4. Hydraulic hose 10.
  • Page 133 2. Position lift control manifold to frame. Install two (2) flange head screws but do not fully tighten. WARNING 3. Remove caps and plugs from disconnected lines and fittings. Make sure that cutting decks are fully lowered before loosening hydraulic lines, cartridge 4.

  • Page 134: Lift Control Manifold Service

    Lift Control Manifold Service 60 in- -lb (6.7 N- -m) 60 in- -lb (6.7 N- -m) 20 ft- -lb (27 N- -m) 20 ft- -lb (27 N- -m) 20 ft- -lb (27 N- -m) 25 ft- -lb (33 N- -m) RIGHT FRONT Figure 92...
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  • Page 136: Lift Cylinder

    Lift Cylinder RIGHT FRONT 67 to 83 ft- -lb (91 to 112 N- -m) Figure 93 1. Lift cylinder 6. Hydraulic hose 10. Hydraulic hose 2. Pivot shaft 7. O- -ring 11. Retaining ring 3. Flange head screw 8. 90 hydraulic fitting 12.
  • Page 137 3. If lift cylinder for deck #4 or #5 is being removed, re- 4. Align lift cylinder to lift arm mounting holes. Slide cyl- move flange nut and carriage screw that secure r--clamp inder slide pin (item 13) (with thrust washer (item 12) and to lift cylinder (Fig.

  • Page 138: Lift Cylinder Service

    Lift Cylinder Service 40 ft- -lb (54 N- -m) Figure 96 1. Grease fitting 6. Retaining ring 11. O- -ring 2. Shaft 7. Back up washer 12. Grease fitting 3. Dust seal 8. O- -ring 13. Lock nut 4. Head 9.
  • Page 139 Disassembly (Fig. 96) Assembly (Fig. 96) 1. Remove oil from lift cylinder into a drain pan by slowly 1. Make sure all lift cylinder parts are clean before as- pumping the cylinder shaft. Plug both ports and clean sembly. the outside of the cylinder. 2.

  • Page 140: Steering Control Valve

    Steering Control Valve Antiseize Lubricant 20 to 26 ft- -lb (28 to 35 N- -m) 84 to 120 in- -lb (9.5 to 13.5 N- -m) Antiseize Lubricant RIGHT FRONT Figure 97 1. Steering column 9. Hydraulic tube 16. Flange head screw (2 used) 2.
  • Page 141 7. Position steering column brace (item 13) to machine CAUTION and secure with four (4) screws and flange nuts. 8. Slide rubber bellows to bottom of steering column. Before opening hydraulic system, operate all hy- 9. Place rubber bushings and spacers into holes of draulic controls to relieve system pressure and shroud (Fig.

  • Page 142: Steering Control Valve Service

    Steering Control Valve Service 20 to 24 ft- -lb (27 to 33 N- -m) Figure 100 1. Screw (5 used) 10. Spool 19. Check ball 2. O- -ring (5 used) 11. Sleeve 20. Housing 3. End cover 12. Cross pin 21.
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  • Page 144: Steering Cylinder

    Steering Cylinder 90 to 120 ft- -lb (123 to 162 N- -m) 70 to 90 ft- -lb (95 to 122 N- -m) RIGHT FRONT 270 to 330 ft- -lb (366 to 447 N- -m) Figure 101 1. Lug nut (5 used per wheel) 14.
  • Page 145 Removal (Fig. 101) 2. If removed, press ball joint into barrel and secure with retaining ring. 1. Park the machine on a level surface, engage the parking brake, lower the cutting decks and stop the en- 3. If ball joint was removed from cylinder shaft, fully re- gine.

  • Page 146: Steering Cylinder Service

    Steering Cylinder Service Figure 103 1. Front shaft (1”) 7. O- -ring 13. Dust seal 2. Rear shaft (1.250”) 8. External collar (2 used) 14. Barrel 3. Front head (1”) 9. Piston 15. Piston seal 4. Rear head (1.250”) 10. Rear head seal 16.
  • Page 147 Inspection IMPORTANT:Make sure to not damage O- -ring (item 7) as piston is installed over roll pin hole in front shaft. CAUTION 3. Install piston (item 9) with new seal, O--ring and wear ring onto front shaft. Use eye protection such as goggles when using IMPORTANT:When installing roll pin into front and compressed air.

  • Page 148: Oil Cooler

    Oil Cooler RIGHT FRONT Figure 104 1. Screen assembly 8. Hydraulic hose (2 used) 15. Pin 2. Oil cooler bracket 9. 90 hydraulic fitting (2 used) 16. Clamp (2 used) 3. Flange head screw (8 used) 10. Hose clamp (4 used) 17.
  • Page 149 Removal (Fig. 104) Installation (Fig. 104) 1. Park machine on a level surface, lower cutting 1. If removed, install hydraulic fittings, clamps and decks, stop engine, engage parking brake and remove brackets to oil cooler using Figure 104 as a guide. key from the ignition switch.
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  • Page 151 ....... Toro Electronic Controller (TEC) ....
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  • Page 153: General Information

    Toro Electronic Controller (TEC) Groundsmaster 4300--D machines use a Toro Electron- IMPORTANT: Before performing any welding on the ic Controller (TEC) to manage machine electrical func- machine, disconnect both positive and negative tions.

  • Page 154: Special Tools

    The multimeter can test electrical components and cir- cuits for current, resistance or voltage. Obtain this tool locally. NOTE: Toro recommends the use of a DIGITAL Volt-- Ohm--Amp multimeter when testing electrical circuits. The high impedance (internal resistance) of a digital me- ter in the voltage mode will make sure that excess cur- rent is not allowed through the meter.
  • Page 155 TEC controller inputs and outputs can be checked using the Diagnostic Display. Toro Part Number for Diagnostic Display: 85- -4750 Toro Part Number for Overlay (English): 117- -0171 NOTE: Diagnostic Display overlays are available in several languages for your Groundsmaster.

  • Page 156: Troubleshooting

    Disconnect the battery cables unless the test requires battery voltage. NOTE: Use the Diagnostic Display (see Special Tools in this chapter) to test Toro Electronic Controller inputs and outputs when troubleshooting an electrical problem on your Groundsmaster.

  • Page 157: Retrieving Fault Codes

    (40) hours of machine operating time, the fault cannot be retrieved from controller memory using 5. Monitor the diagnostic light for fault code(s). this procedure. If necessary, contact your Toro distribu- tor to retrieve older fault codes. NOTE: Once the diagnostic light begins to display fault codes, the joystick can be released.

  • Page 158: Diagnostic Display

    Diagnostic Display Groundsmaster 4300--D machines are equipped with a TEC controller which controls machine electrical func- tions. The controller monitors various input switches (e.g. ignition switch, seat switch, etc.) and energizes outputs to actuate solenoids or relays for the requested machine function.
  • Page 159 5. The “INPUTS DISPLAYED” LED, on lower right col- ponent Testing in this chapter). Replace all defective umn of the Diagnostic Display, should be illuminated. If switches and repair any damaged wiring. the green “OUTPUTS DISPLAYED” LED is illuminated, NOTE: The TEMP WARNING and ALT FAULT TEC press the toggle button on the Diagnostic Display to controller inputs can not be reliably tested by grounding change to “INPUTS DISPLAYED”...

  • Page 160: Verify Diagnostic Display Output Functions

    LED’s are not correctly illuminated, this indicates a controller prob- 1. Park machine on a level surface, lower the cutting lem. If this occurs, contact your Toro Distributor for decks, stop the engine and engage the parking brake. assistance.

  • Page 161: Tec Controller Logic Chart

    TEC Controller Logic Chart Each line of the following chart identifies the necessary Example: To start the engine with no operator in the component position (INPUTS) in order for the TEC con- seat, when the ignition key is in start, the traction pedal troller to energize the appropriate OUTPUTS for ma- is in neutral and the parking brake is applied, the glow chine operation.

  • Page 162: Starting Problems

    Starting Problems Problem Possible Causes No electrical power to machine (including gauges). Battery is discharged. Ignition switch or circuit wiring is faulty. Fusible link harness at the engine starter motor is faulty. Battery cables are loose or corroded. Fuse F1--1 (15 amp) or F1--2 (10 amp) is faulty. Starter solenoid clicks, but starter will not crank.
  • Page 163 Starting Problems (Continued) Problem Possible Causes Engine cranks, but should not, when the traction pedal Traction neutral switch is out of adjustment. is depressed. Traction neutral switch or circuit wiring is faulty. Nothing happens when start attempt is made. Control Traction pedal is not in neutral position.

  • Page 164: General Run And Transport Problems

    General Run and Transport Problems Problem Possible Causes Engine continues to run, but should not, when the Engine fuel stop solenoid is faulty. ignition switch is turned off. Ignition switch or circuit wiring is faulty. Main power relay or circuit wiring is faulty. Engine continues to run, but should not, when the Seat switch or circuit wiring is faulty.

  • Page 165: Cutting Deck Operating Problems

    Cutting Deck Operating Problems Problem Possible Causes The cutting decks remain engaged, but should not, Seat switch or circuit wiring is faulty. with no operator in the seat. TEC controller is faulty. Cutting decks run, but should not, when raised. Cutting A hydraulic problem in cutting deck circuit exists (see decks shut off with PTO switch.
  • Page 166 Cutting Deck Operating Problems (Continued) Problem Possible Causes The rear cutting decks do not operate. Front cutting Deck control manifold PRV1 solenoid coil or circuit decks operate. Cutting decks are able to raise and wiring is faulty. lower. A hydraulic problem in rear mow circuit exists (see Troubleshooting section of Chapter 4 - Hydraulic System).

  • Page 167: Electrical System Quick Checks

    Electrical System Quick Checks Battery Test (Open Circuit Test) Use a digital multimeter to measure the battery voltage. Voltage Measured Battery Charge Level 12.68 volts Fully charged (100%) Set the multimeter to the DC volts setting. The battery should be at a temperature of 60 to 100 F (16 12.45 volts...

  • Page 168: Check Operation Of Interlock Switches

    Check Operation of Interlock Switches The interlock system used on your Groundsmaster in- CAUTION cludes the seat switch, the traction neutral switch, the parking brake switch, the mow/transport switch and the PTO switch. Testing of individual interlock switches is in- The interlock switches are for the protection of cluded in the Component Testing section of this Chap- the operator and bystanders and to ensure cor-...

  • Page 169: Adjustments

    Adjustments Traction Neutral Switch The traction neutral switch is a normally open proximity switch that closes when the traction pedal is in the neu- FRONT tral position. The switch mounts to a bracket on the trac- tion pump (Fig. 14). The sensing plate for the traction neutral switch is the traction lever bracket that is secured to the pump control arm.

  • Page 170: Parking Brake Switch

    Parking Brake Switch The parking brake switch is a normally open proximity switch. The parking brake switch is attached to the bot- tom of the brake pedal (Fig. 16). When the parking brake is not applied, the parking brake detent is positioned near the target end of the parking brake switch so the switch is closed.

  • Page 171: Mow/Transport Switch

    Mow/Transport Switch The mow/transport switch is a normally closed proximity switch that opens when the mow speed limiter is placed in the transport position. The switch mounts to a bracket on the footrest platform (Fig. 17). The sensing plate for the mow/transport switch is a tab on the mow speed lim- iter.

  • Page 172: Component Testing

    Component Testing For accurate resistance and/or continuity checks, elec- NOTE: For engine component testing information, see trically disconnect the component being tested from the the Kubota Workshop Manual, Diesel Engine, 05--E3B circuit (e.g. unplug the ignition switch connector before Series at the end of Chapter 3 -- Kubota Diesel Engine. doing a continuity check of the switch).

  • Page 173: Indicator Lights

    Indicator Lights Glow Plug Indicator Light 3. Apply 12 VDC to terminals 1A and 2A (Fig. 20). The glow plug indicator light should come on when the 4. Ground terminals 1B and 2B (Fig. 20). ignition switch is placed in the RUN position prior to plac- 5.

  • Page 174: Hour Meter

    Hour Meter The hour meter is located on the outside of the control arm. Hobbs 1. Remove control arm covers to gain access to hour QUARTZ meter and meter terminals (see Control Arm Disassem- 0 0 0 0 bly in the Service and Repairs section of Chapter 6 -- HOURS Chassis).

  • Page 175: Pto Switch

    PTO Switch The PTO switch is mounted on the control panel and al- 7. Connect wire harness electrical connector to the lows the cutting decks to operate when the front of the PTO switch. switch is depressed. An indicator light on the switch 8.

  • Page 176: Headlight Switch

    Headlight Switch The headlight switch is located on the operator side of the control arm. This rocker switch allows the headlights to be turned on and off. Testing 1. Remove inside control arm cover to gain access to headlight switch (see Control Arm Disassembly in the Service and Repairs section of Chapter 6 -- Chassis).

  • Page 177: Seat Switch

    Seat Switch The seat switch is normally open and closes when the operator seat is occupied. This switch is used as an in- put for the TEC controller. If the traction system or PTO switch is engaged when the operator raises out of the seat, the engine will stop.

  • Page 178: Joystick Raise And Lower Switches

    Joystick Raise and Lower Switches Two (2) micro switches for the joystick are located on the 8. If joystick switch is faulty, replace switch. lift control that is attached to the control arm. The rear 9. If the joystick switch tests correctly and a circuit prob- switch on the control is used to lower (and engage) the lem still exists, check wire harness (see Electrical Sche- cutting decks and the front switch to raise (and disen-...

  • Page 179: Traction Neutral Switch

    Traction Neutral Switch The traction neutral switch is a normally open proximity D. Turn ignition switch to the ON position (do not switch that closes when the traction pedal is in the neu- start engine) and verify with a multimeter that ma- tral position.

  • Page 180: Parking Brake Switch

    Parking Brake Switch The parking brake switch is a normally open proximity D. Turn ignition switch to the ON position (do not switch. The parking brake switch is attached to the bot- start engine) and verify with a multimeter that ma- tom of the brake pedal (Fig.

  • Page 181: Mow/Transport Switch

    Mow/Transport Switch The mow/transport switch is a normally closed proximity 4. If the mow/transport switch tests correctly and a cir- switch that opens when the mow speed limiter is placed cuit problem still exists, check wire harness (see Electri- in the transport position. The switch mounts to a bracket cal Schematic and Circuit Drawings in Chapter 8 -- on the footrest platform.

  • Page 182: Start Relay

    Start Relay The start relay is used in the engine starting circuit. 6. Disconnect voltage from terminal 85 and multimeter When energized by the TEC controller, the start relay lead from terminal 87. provides a current path to energize the engine starter 7.

  • Page 183: Main Power And Glow Relays

    Main Power and Glow Relays The Groundsmaster electrical system includes two 6. Disconnect voltage and test leads from the relay ter- identical relays for current control. The main power and minals. Replace relay if necessary. glow relays are attached to a frame bracket under the 7.

  • Page 184: Toro Electronic Controller (Tec)

    Toro Electronic Controller (TEC) The Groundsmaster 4300--D uses a Toro Electronic Controller (TEC) to monitor the condition of various switches (inputs) and then direct power output to allow certain machine functions. The controller is located be- hind the control arm access cover next to the fuse block (Fig.

  • Page 185: Fuses

    Fuses The fuse block is located behind the control arm access cover (Fig. 39). In addition to the fuses in the fuse block, a 2 amp fuse (F3) is included in the wire harness to protect the logic power circuit for the TEC controller. This fuse resides in a fuse holder near the battery (Fig.

  • Page 186: Diode Assembly

    Diode Assembly A diode assembly (Fig. 42) is used in the Groundsmas- ter 4300--D engine wire harness. The diode is used for circuit protection from voltage spikes that occur when the engine starter solenoid is de--energized. Refer to wire harness drawings in Chapter 8 -- Foldout Drawings for additional diode assembly information.

  • Page 187: Fusible Link Harness

    Fusible Link Harness The Groundsmaster 4300--D uses four (4) fusible links for circuit protection. Three (3) of these fusible links are located in a harness that connects the starter B+ termi- nal to the wire harness (Figs. 44 and 45). The remaining fusible link is included in the wire harness and connects the starter terminal to the engine run solenoid pull coil.

  • Page 188: Hydraulic Solenoid Valve Coil

    Hydraulic Solenoid Valve Coil The Groundsmaster 4300--D hydraulic system uses NOTE: The two (2) solenoid valve coils on the deck several hydraulic solenoid valve coils for system control. control manifold (PRV1 and PRV2) are identical. Sole- The deck control manifold includes two (2) solenoid noid valve coils SV1 and PRV on the lift control manifold valves (Fig.

  • Page 189: Temperature Sender

    Temperature Sender The temperature sender is attached to the water pump 4. Check resistance of the sender with a multimeter housing on the engine and has a gray wire attached to (ohms setting) as the temperature increases. Replace it (Fig. 48). The resistance of the temperature sender re- sender if specifications are not met.

  • Page 190: High Temperature Shutdown Switch

    High Temperature Shutdown Switch The high temperature shutdown switch is located on the 5. Replace shutdown switch if specifications are not water pump housing (Fig. 50). The high temperature met. shutdown switch is normally open and closes when en- 6. After testing is complete, install shutdown switch to gine coolant temperature reaches approximately 239 the engine housing.

  • Page 191: Oil Pressure Switch

    Oil Pressure Switch The engine oil pressure switch is located on the engine near the oil filter (Fig.52). The oil pressure switch is a normally closed switch that opens with pressure. The oil pressure switch should open at approximately 8 PSI (0.56 kg/cm The TEC controller monitors the operation of the oil pressure switch.

  • Page 192: Fuel Stop Solenoid

    Fuel Stop Solenoid The fuel stop solenoid used on your Groundsmaster 5. Using a digital multimeter (ohms setting), touch one must be energized for the diesel engine to run. The sole- test lead to the hold coil terminal and the other test lead noid is mounted to the injection pump on the engine (Fig.

  • Page 193: Fuel Pump

    Fuel Pump The fuel pump used on the Groundsmaster 4300--D is 10.Connect wire harness electrical connector to the en- attached to the inside of the left side frame rail near the gine fuel stop solenoid. fuel tank (Fig. 55). 11. Bleed the fuel system. IMPORTANT: When testing fuel pump, make sure 12.Lower and secure operator seat and hood.

  • Page 194: Service And Repairs

    (+) cable first. Coat battery posts and cable are explosive, keep open flames and electrical connectors with Battery Terminal Protector (Toro Part sparks away from the battery; do not smoke. No. 107--0392) or petroleum jelly to prevent corrosion.

  • Page 195: Battery Service

    (+) cable first. Coat battery posts and 1. Raise and support hood. cable connectors with Battery Terminal Protector (Toro Part No. 107--0392) or petroleum jelly to pre- 2. Loosen and remove negative (--) cable from battery. vent corrosion.

  • Page 196: Battery Testing

    Battery Testing B. If the battery has recently been charged, remove the battery surface charge before performing the 1. Conduct a hydrometer test of the battery electrolyte. load test. Disconnect the engine fuel stop solenoid to prevent the engine from starting. Engage the starter IMPORTANT: Make sure the area around the cells is motor for ten (10) seconds to remove battery surface clean before opening the battery caps.

  • Page 197: Battery Charging

    Battery Charging CAUTION To minimize possible damage to the battery and allow the battery to be fully charged, the slow charging meth- od is presented here. This charging method can be ac- Do not charge a frozen battery because it can ex- complished with a constant current battery charger plode and cause injury.

  • Page 198: Hydraulic Solenoid Valve Coil

    Hydraulic Solenoid Valve Coil A hydraulic solenoid valve coil on the deck control man- ifold (Fig. 58) or lift control manifold (Fig. 59) can be re- placed without opening the hydraulic system. FRONT Removal 1. Park machine on a level surface, lower cutting decks, stop engine and engage parking brake.
  • Page 199 Chapter 6 Chassis Table of Contents SPECIFICATIONS ......GENERAL INFORMATION ..... Operator’s Manual .

  • Page 200: Specifications

    Groundsmaster 4300--D machine. Re- fer to that publication for additional information when servicing the machine. Special Tools Order Special Tools from your Toro Distributor. Wheel Hub Puller The wheel hub puller allows safe removal of the wheel hub from the wheel motor shaft.
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  • Page 202: Service And Repairs

    Service and Repairs Wheels 70 to 90 ft- -lb (95 to 122 N- -m) RIGHT FRONT Figure 2 1. Front wheel motor (LH shown) 5. Brake drum 9. Rear wheel hub 2. Brake assembly (LH shown) 6. Front wheel 10. Rear wheel 3.
  • Page 203 Removal (Fig. 2) Installation (Fig. 2) 1. Park machine on a level surface, lower cutting 1. Install wheel and secure with five (5) lug nuts. decks, stop engine, engage parking brake and remove 2. Lower machine to ground. key from the ignition switch. 3.

  • Page 204: Steering Column

    Steering Column Antiseize Lubricant 20 to 26 ft- -lb (28 to 35 N- -m) 84 to 120 in- -lb (9.5 to 13.5 N- -m) Antiseize Lubricant RIGHT FRONT Figure 3 1. Steering column 9. Hydraulic tube 16. Flange head screw (2 used) 2.
  • Page 205 5. Remove platform shroud from machine to allow ac- 9. Install steering wheel cover to steering wheel. cess to steering column fasteners (Fig. 4). A. Remove cover plate from platform. B. Remove fasteners that secure shroud to ma- chine. C. Remove shroud from machine. D.

  • Page 206: Brake Service

    Brake Service RIGHT 70 to 90 ft- -lb (95 to 122 N- -m) FRONT 315 to 385 ft- -lb (427 to 521 N- -m) Figure 6 1. LH wheel motor 12. Lock nut (4 used per wheel motor) 23. Clevis pin (2 used) 2.
  • Page 207 6. Remove return spring and clevis pin that secure 6. Mount square key in the wheel motor shaft, then brake cable to brake actuator lever. Position brake cable install the wheel hub onto the wheel motor shaft. end away from lever. IMPORTANT: Do not reuse lock nut that secures 7.

  • Page 208: Rear Axle Motor Housings

    Rear Axle Motor Housings 70 to 90 ft- -lb (95 to 122 N- -m) RIGHT FRONT 315 to 385 ft- -lb (427 to 521 N- -m) Figure 8 1. Lug nut (5 used per wheel) 14. Flange head screw (3 used per link) 26.
  • Page 209 Removal (Fig. 8) C. Apply grease to the inside and outside of the new flange bushings. 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove D. Press new flange bushings into the top and bot- key from the ignition switch.

  • Page 210: Rear Axle

    Rear Axle 90 to 120 ft- -lb (123 to 162 N- -m) 70 to 90 ft- -lb (95 to 122 N- -m) RIGHT FRONT 315 to 385 ft- -lb (427 to 521 N- -m) Figure 9 1. Lug nut (5 used per wheel) 16.
  • Page 211 Rear Axle Removal (Fig. 9) D. Press new bushings into the axle pivot bore until bushing is flush with axle. 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove E. After bushing installation, make sure that pivot key from the ignition switch.
  • Page 212 Rear Axle Installation (Fig. 9) 6. Position tie rod to axle and insert tie rod ends to drag links. Secure tie rod ends to drag links with slotted hex 1. Position the rear axle assembly to the frame. Install nuts and cotter pins. thrust washer (item 7) between each side of axle and frame.
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  • Page 214: Control Arm

    Control Arm FRONT RIGHT Figure 12 1. Arm rest 11. Clevis pin 21. Foam seal 2. Headlight switch 12. Cap screw 22. Flange nut 3. LH control arm cover 13. Latch 23. Spacer 4. Screw (2 used) 14. Swell latch (2 used) 24.
  • Page 215 Disassembly (Fig. 12) 1. Park machine on a level surface, lower cutting decks, stop engine and engage parking brake. Remove key from ignition switch. 2. Loosen latches and remove access cover from out- side of control arm. 3. At front of control arm, remove screw (item 6) and lock nut (item 5) that secure control arm covers to each other.

  • Page 216: Operator Seat

    Operator Seat RIGHT FRONT Figure 15 1. Seat 10. Armrest 19. Cap screw (4 used) 2. Seat base 11. Cap screw 20. Housing cap 3. Seat adjuster w/latch 12. Flange nut 21. R- -clamp (2 used) 4. Flat washer (4 used) 13.
  • Page 217 Removal (Fig. 15) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. 2. Disconnect negative battery cable from battery (see Battery Service in the Service and Repairs section of Chapter 5 -- Electrical System).

  • Page 218: Mechanical Seat Suspension

    Mechanical Seat Suspension Figure 18 1. Upper housing 15. Lower shock bolt 29. Weight indicator assembly 2. Weight adjust knob 16. Upper shock bushing (2 used) 30. Weight adjust nut 3. Lower housing 17. Lower shock bushing (2 used) 31. Rivet 4.
  • Page 219 IMPORTANT: When removing the seat suspension, make sure to support the control arm to prevent damage to the throttle cable, control arm electrical FRONT components and control arm wiring harness. Removal (Figs. 18 and 19) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch.

  • Page 220: Front Lift Arms

    Front Lift Arms 75 to 95 ft- -lb (102 to 128 N- -m) Permatex Threadlocker Permatex Threadlocker Antiseize Lubricant Permatex Threadlocker Antiseize Lubricant 75 to 95 ft- -lb (102 to 128 N- -m) RIGHT Permatex Threadlocker FRONT 135 to 165 ft- -lb (183 to 223 N- -m) Figure 20 1.
  • Page 221 Removal (Fig. 20) 2. If pivot shaft (item 16) was removed from lift arm, in- sert pivot shaft in lift arm and secure with cap screw 1. Park machine on a level surface, lower cutting (item 19). decks, stop engine, engage parking brake and remove key from the ignition switch.

  • Page 222: Rear Lift Arms

    Rear Lift Arms 135 to 165 ft- -lb 75 to 95 ft- -lb (183 to 223 N- -m) (102 to 128 N- -m) RIGHT 135 to 165 ft- -lb Permatex (183 to 223 N- -m) Threadlocker Permatex FRONT Permatex Threadlocker Threadlocker Antiseize Lubricant...
  • Page 223 C. Remove screw that secures r--clamp to lift arm. C. Install screws, flat washers (items 5 and 10) and Position r--clamp and hydraulic hoses away from lift flange nut (item 7) to bridge plate, bulkhead bracket, arm. pivot shafts and frame bracket. D.
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  • Page 225 Chapter 7 Cutting Decks Table of Contents SPECIFICATIONS ......GENERAL INFORMATION ..... Operator’s Manual .

  • Page 226: Specifications

    Specifications MOUNTING: All cutting decks are supported by inde- DISCHARGE: Clippings are discharged from the rear of pendent lift arms and are interchangeable to any cutting the mowing decks. Pre--drilled mounting holes in the deck positions. The Groundsmaster 4300--D uses five cutting deck allow attachment of optional mulching (5) cutting decks.

  • Page 227: General Information

    General Information CAUTION Never install or work on the cutting decks or lift arms with the engine running. Always stop en- gine and remove key from ignition switch first. Operator’s Manual The Cutting Deck Operator’s Manual provides informa- tion regarding the operation, general maintenance and maintenance intervals for the cutting deck on your Groundsmaster machine.

  • Page 228: Troubleshooting

    Troubleshooting There are a number of factors that can contribute to un- Remember that the “effective” or actual height--of--cut satisfactory quality of cut, some of which may be turf depends on cutting deck weight, counterbalance setting conditions. Turf conditions such as excessive thatch, and turf conditions.

  • Page 229: Special Tools

    Special Tools Order special tools from your Toro Distributor. Rear Roller Bearing and Seal Installation Tools These tools are used to assemble the cutting deck rear roller. Inner Seal Tool Toro Part Numbers: Inner Seal Tool 115- -0852 Bearing/Outer Seal Tool...

  • Page 230: Adjustments

    Adjustments CAUTION Never install or work on the cutting decks or lift arms with the engine running. Always stop en- gine and remove key from ignition switch first. See the Cutting Deck Operator’s Manual for adjustment procedures for cutting decks on the Groundsmaster 4300--D.
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  • Page 232: Service And Repairs

    Service and Repairs CAUTION Never install or work on the cutting decks or lift arms with the engine running. Always stop en- gine and remove key from ignition switch first. Blade Spindle Assembly RIGHT 88 to 108 ft- -lb (120 to 146 N- -m) FRONT Figure 3 1.
  • Page 233 Removal (Fig. 3) 5. Remove cover from top of spindle that was placed to prevent debris from entering spindle. 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove 6. Make sure that O--ring is positioned to top of spindle key from the ignition switch.

  • Page 234: Blade Spindle Service

    Blade Spindle Service Disassembly (Fig. 5) 1. Remove blade spindle from cutting deck (see Blade Spindle Removal in this section). 2. Loosen and remove spindle nut from top of spindle 130 to 160 ft- -lb (177 to 216 N- -m) shaft.
  • Page 235 3. Using an arbor press, push the bearing cups into the top and bottom of the spindle housing. The top bearing PRESS cup must contact the outer bearing spacer previously installed, and the bottom bearing cup must contact the large snap ring. Make sure that the assembly is correct by supporting the first bearing cup and pressing the sec- ond cup against it (Fig 7).

  • Page 236: Rear Roller

    Rear Roller 29 to 35 ft- -lb (40 to 47 N- -m) 29 to 35 ft- -lb (40 to 47 N- -m) 29 to 35 ft- -lb (40 to 47 N- -m) 29 to 35 ft- -lb (40 to 47 N- -m) RIGHT FRONT Figure 9...
  • Page 237 Removal (Fig. 9) 30 ft- -lb (41 N- -m) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove 29 to 35 ft- -lb key from the ignition switch. (40 to 47 N- -m) 2.

  • Page 238: Rear Roller Service

    Rear Roller Service Disassembly (Fig. 11) 50 to 60 ft- -lb 1. Remove bearing lock nut from each end of roller (68 to 81 N- -m) shaft. 2. Loosely secure roller assembly in bench vise and lightly tap one end of roller shaft until outer seals and bearing are removed from opposite end of roller tube.
  • Page 239 3. From the roller tube end with only the inner seal NOTE: After roller is installed to cutting deck, lubricate installed, carefully install the roller shaft into the roller roller grease fittings, rotate roller to properly distribute tube. Make sure that seals are not damaged as shaft is grease in bearings and clean excess grease from roller installed.

  • Page 240: Front Roller Service

    Front Roller Service Disassembly (Fig. 17) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. 2. Remove front roller mounting bolt. 3. Remove front roller assembly and spacer from deck frame.
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  • Page 242: Cutting Deck Carrier Frame

    Cutting Deck Carrier Frame RIGHT FRONT Decks #1, #4 and #5 Decks #2 and #3 Figure 18 1. Carrier frame 7. Cutting deck assembly 13. Grease fitting 2. Lynch pin 8. Cap screw (4 used per deck) 14. Bushing 3. Thrust washer 9.
  • Page 243 Removal (Fig. 18) Each cutting deck is suspended from a carrier frame. The cutting deck carrier frame is attached to the lift arm and allows the cutting deck to pivot on the lift arm pivot shaft. Cutting deck positions are identified in Figure 19. To remove cutting decks from the lift arm pivot shaft: 1.
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  • Page 245 Chapter 8 Foldout Drawings Table of Contents HYDRAULIC SCHEMATIC ..... ELECTRICAL SCHEMATIC ..... Sheet 1 of 2 .
  • Page 246 This page is intentionally blank. Foldout Drawings Page 8 - - 2 Groundsmaster 4300--D...

  • Page 247: Hydraulic Schematic

    GEAR PUMP BYPASS VALVE CROSSTRAX MANIFOLD STEERING CONTROL VALVE STEERING CYLINDER PISTON (TRACTION) PUMP LIFT CONTROL MANIFOLD DECK Groundsmaster 4300--D CONTROL MANIFOLD Hydraulic Schematic Page 8 - - 3...

  • Page 248: Electrical Schematic

    Groundsmaster 4300--D Electrical Schematic Sheet 1 of 2 All relays and solenoids are shown as de- - energized. All ground wires are black. Page 8 - - 4...

  • Page 249: Sheet 2 Of 2

    (PRV1) (PRV2) TORO ELECTRONIC CONTROLLER Groundsmaster 4300--D Electrical Schematic Sheet 2 of 2 All relays and solenoids are shown as de- - energized. All ground wires are black. Page 8 - - 5...

  • Page 250: Main Wire Harness Drawing

    Groundsmaster 4300--D Main Wire Harness Drawing Page 8 - - 6...

  • Page 251: Main Wire Harness Diagram

    BROWN/BLACK VIOLET/BLACK WHITE BLUE PINK BLACK PINK BLACK WHITE/GREEN GREEN/WHITE BLUE PINK GRAY YELLOW PINK BLACK BLACK RED/BLACK RED/BLACK BLACK PINK ORANGE BLACK GREEN Groundsmaster 4300--D Main Wire Harness Diagram Page 8 - - 7...

  • Page 252: Seat Wire Harness Drawing

    NOTE CLOCK POSITION Groundsmaster 4300--D Seat Wire Harness Drawing Page 8 - - 8...

  • Page 253: Seat Wire Harness Diagram

    GRAY GRAY/BLACK WHITE/BLUE VIOLET TAN/WHITE BLUE BROWN BROWN/WHITE RED/BLACK ORANGE GREEN/YELLOW YELLOW GREEN/WHITE WHITE GREEN/BLACK ORANGE/BLACK BLACK BLUE/YELLOW PINK BLACK YELLOW/BLUE BROWN/YELLOW PINK PINK BLACK YELLOW/GREEN WHITE BLACK TAN/BLACK VIOLET/WHITE GRAY ORANGE BLUE/WHITE VIOLET/BLACK WHITE/BLACK WHITE/VIOLET BROWN (PRV2) GREEN (PRV1) BLACK/WHITE RED/WHITE BLACK...

  • Page 254: Engine Wire Harness Drawing

    Groundsmaster 4300--D Engine Wire Harness Drawing Page 8 - - 10...

  • Page 255: Engine Wire Harness Diagram

    ORANGE BLACK GREEN/WHITE BLUE Groundsmaster 4300--D Engine Wire Harness Diagram Page 8 - - 11...

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