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Hitachi CJ 90VST Technical And Service Manual
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Hitachi CJ 90VST Technical And Service Manual

90 mm (3-1/2”)
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PRODUCT NAME
Hitachi Jig Saw
Model
90 mm (3-1/2")
MARKETING OBJECTIVE
The new power jig saw Model CJ 90VST is made less expensive than existing jig saw Model CJ 110MV
by limiting its functions.
(1) Fastest cutting speed among jig saws using a high-power motor
(2) Blade holder of the quick-fit chuck type with stronger blade-holding force
(3) 4-stage orbital action
With the features above, the new jig saw will be released in order to increase its market share and sales.
APPLICATIONS
● Cutting or cutting out shapes in various types of wood workpieces
● Cutting various types of metals such as mild steel, aluminum and copper
● Cutting various types of synthetic resin materials such as bakelite and vinyl chloride
● Cutting various decorative sheets and thin, soft construction materials
● Cutting stainless steel sheets
SELLING POINTS
[ NEW FEATURES ]
Fastest cutting speed among jig saws using
a high-power motor
Tool-less blade changing system
[ SAME FEATURES AS THE CONVENTIONAL MODELS ]
4-stage orbital action
Soft grip handle
Blower mechanism for blowing away cutting dust
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
CJ 90VST
　International Sales Division
LIST No. E525
Jun. 2010
C

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Summary of Contents for Hitachi CJ 90VST

  • Page 1 Model 90 mm (3-1/2”) MARKETING OBJECTIVE The new power jig saw Model CJ 90VST is made less expensive than existing jig saw Model CJ 110MV by limiting its functions. (1) Fastest cutting speed among jig saws using a high-power motor...
  • Page 2 REMARK: ● For more information about HANDLING INSTRUCTIONS, visit our website at: http://www.hitachi-koki.com/manual_view_export/ ● Throughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s) is(are) used in the place of company name(s) and model name(s) of our competitor(s). The symbol(s) utilized here is(are) as follows:...

  • Page 3: Table Of Contents

    1. Blade Movement -------------------------------------------------------------------------------------------------6 2. Orbital Position Selection --------------------------------------------------------------------------------------6 3. Blades --------------------------------------------------------------------------------------------------------------7 PRECAUTIONS ON SALES PROMOTION -----------------------------------------------------------------------------8 1. Safety Instructions ----------------------------------------------------------------------------------------------8 REPAIR GUIDE -----------------------------------------------------------------------------------------------------------------9 1. Precautions on Disassembly and Reassembly ----------------------------------------------------------9 STANDARD REPAIR TIME (UNIT) SCHEDULES ------------------------------------------------------------------- 16 Assembly Diagram for CJ 90VST...

  • Page 4: Selling Points

    SELLING POINTS Fastest cutting speed among jig saws using a high-power motor Comparison of power input Model (Reference) CJ 90VST Item CJ 110MV 705 W Power input 720 W 650 W 600 W (630 W) (*630 W) * 120V and 127V model Comparison of cutting speed (The cutting speed greatly depends on cutting conditions.)

  • Page 5: Soft Grip Handle

    It is slip resistant and securely fits in into palm of even a sweaty hand. Blower mechanism for blowing away cutting dust The Model CJ 90VST is equipped with a dust blower mechanism that blows off cutting dust into the air from the motor cooling fan.

  • Page 6: Specifications

    SPECIFICATIONS 1. Specifications Model CJ 90VST Item Wood 90 mm (3-1/2") Capacity Max. cutting size Mild Steel 8 mm (5/16”) No-load speed 850 to 3,000 min Type of power source Single-phase AC 50/60 Hz 110 V 120 V 127 V...

  • Page 7: Optional Accessories

    2. Optional Accessories (1) Blades Blade shape Application Blade No. Pitch Code No. Per pkg. No.1 Wood 321878 (Super) No.11 879336 Wood, pulp, synthetic resin No.12 879337 No.15 879338 Steel pulp, nonferrous metal, synthetic resin No.16 879339 No.21 879340 Wood, pulp, synthetic resin No.22 879341...

  • Page 8: Comparison With Similar Products

    COMPARISON WITH SIMILAR PRODUCTS 1. Comparison of Specifications (Superior specifications: Maker HITACHI (Reference) Model CJ 90VST CJ 110MV Item 90 mm 110 mm 90 mm 75 mm 75 mm Wood Cutting (3-1/2”) (4-5/16”) (3-1/2”) (3”) (3”) capacity Mild 8 mm...

  • Page 9: Orbital Mechanism And Blade

    1. Blade Movement In the Model CJ 90VST, the orbital mechanism moves the blade up and down, and back and forward. The amount of fore-and-aft blade movement can be adjusted by simply switching the change knob to any of the four settings.

  • Page 10: Blades

    3. Blades Proper blade selection is very important for achieving maximum performance of the Model CJ 90VST. The table below can be used as a handy reference for selecting the optimum blade based on the type and thickness of material to be cut.

  • Page 11: Precautions On Sales Promotion

    1. Safety Instructions In the interest of promoting the safest and most efficient use of the Model CJ 90VST Jig Saw by all of our customers, it is very important when concluding a sale that salesperson carefully ensure that the buyer seriously recognizes the importance of the Handling Instructions, and fully understands the precautions listed on the Caution Plate attached to each tool.

  • Page 12: Repair Guide

    1. Precautions on Disassembly and Reassembly [Bold] numbers in the descriptions below correspond to numbers in the Parts List and exploded assembly diagrams for the Model CJ 90VST. Disassembly 1. Disassembly of Base ●...
  • Page 13 3. Disassembly of Housing (A).(B) Set (1) Loosen eight Tapping Screws (W/Flange) D4 X 20 (Black) [38] and open Housing (A). (B) Set [36]. (2) Loosen two Tapping Screws (W/Flange) D4 X 16 [49], disconnect Cord [56], and then remove Spring [13], Plate Nut [64], Roller Holder [46], Needle Roller [47], Brush Holder [32], and Carbon Brush [33] from Housing (A).(B) Set [36].
  • Page 14 4. Disassembly of Plunger Holder (A) and Blade Holder Assembly (1) Remove Plunger [15], Plunger Holder (A) [14], Plunger Holder (B) [16], and Packing [17] together. (2) Loosen two Seal Lock Hex. Socket HD. Bolts M3 X 10 [1], remove Blade Holder Ass'y [2], and then pull out Packing [17] and Plunger Holder (B) [16].

  • Page 15: Other Precautions

    Reassembly Reverse the disassembly procedures above to reassemble the jig saw. However, pay particular attention when reassembling the jig saw. 1. Reassembly of Change Knob (1) Reassemble Spring (C) [61] and Steel Ball D3.97 [62] in Change Knob [60] as shown in the following diagram: ●...

  • Page 16: Screw Tightening Torque

    Application of Lubricant (1) Apply Nippeco SEP-3A grease to the following: ● Entire Gear [21], particularly its teeth ● Both sides of Washer (A) [25] ● Both sides of Orbital Cam [24] ● Both sides of Balance Weight [23] ● Periphery of Connecting Piece (A) [19] ●...

  • Page 17: Wiring Diagram

    Wiring Diagram Carefully ensure that wiring is accomplished as illustrated below, because incorrect wiring will result in inadequate or reverse rotation. ● Circuit diagram Varistor [50] Controller [43] Connector 50091 [53] Switch (E) (1p Screw Type) W/Lock [41] -14-...
  • Page 18 ● Wiring diagram Switch (E) (1p Screw Type) W/Lock [41] Controller [43] Connector 50091 [53] Varistor [50] Cord [56] Connection to the switch (Viewed from A) with the varistor ass’y Cord [56] (black, brown) Cord [56] (white, blue) + Terminal [45] (red) + Terminal [45] (red) Varistor [50] (red) Varistor [50] (white)

  • Page 19: Standard Repair Time (Unit) Schedules

    Change Knob Armature Ass'y Ball Bearing 608VVC2PS2L Ball Bearing 608VVC2PS2L Stator Switch (E) Controller Cord Cord Armor CJ 90VST General Assembly Connecting Blade Holder (A) Piece (A) Blade Holder (B) Needle Bearing Lever (A) Gear Holder Plate Balance Weight Orbital Cam...
  • Page 20 LIST NO. E525 JIG SAW 2010 6 14 Model CJ 90VST (E1)
  • Page 21 PARTS CJ 90VST ITEM ITEM CODE NO. CODE NO. DESCRIPTION REMARKS USED USED 332-446 SEAL LOCK HEX. SOCKET HD. BOLT M3 X 10 332-443 BLADE HOLDER ASS'Y INCLUD. 3-12 332-429 BLADE HOLDER (A) 332-436 PIN D3 332-434 SPECIAL BOLT M4...
  • Page 22 PARTS CJ 90VST ITEM CODE NO. DESCRIPTION REMARKS USED 332-834 CONTROLLER 120V-127V 332-832 CONTROLLER 220V-230V 332-833 CONTROLLER 240V 673-489 RETAINING RING (E-TYPE) FOR D5 SHAFT 980-063 TERMINAL 332-448 ROLLER HOLDER 332-433 NEEDLE ROLLER 960-266 CORD CLIP 984-750 TAPPING SCREW (W/FLANGE) D4 X 16...

  • Page 23: Standard Accessories

    STANDARD ACCESSORIES CJ 90VST ITEM CODE NO. DESCRIPTION REMARKS USED 879-357 JIG SAW BLADES NO. 41 (5 PCS.) 944-458 HEX. BAR WRENCH 4MM 332-420 CASE EXCEPT FOR VEN, TPE, THA, INA, SIN, HKG, KUW, CHN, IND, LIB OPTIONAL ACCESSORIES ITEM CODE NO.

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