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Hitachi DS 7DF Technical Data And Service Manual
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Hitachi DS 7DF Technical Data And Service Manual

Hitachi DS 7DF Technical Data And Service Manual

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MODEL
DS 7DF
POWER TOOLS
D
TECHNICAL DATA
CORDLESS DRIVER DRILL
AND
DS 7DF
SERVICE MANUAL
LIST No. F881
Mar. 2003
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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  • Page 1 MODEL DS 7DF POWER TOOLS TECHNICAL DATA CORDLESS DRIVER DRILL DS 7DF SERVICE MANUAL LIST No. F881 Mar. 2003 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 REMARK: 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: Competitors Symbols Utilized Model Name Company Name GSR7.2-1 BOSCH...

  • Page 3: Table Of Contents

    9-1. Feedback System ..........................10 10. REPAIR GUIDE ..........................11 10-1. Precautions in Disassembly and Reassembly ................11 10-2. Precautions in Disassembly and Reassembly of the Battery Charger .......... 16 11. STANDARD REPAIR TIME (UNIT) SCHEDULES................ 17 Assembly Diagram for DS 7DF...

  • Page 4: Product Name

    The new Model DS 7DF was developed based on the well-reputed Model DN 10DSA to reinforce the 7.2-V product line. As the Model DS 7DF is equipped with the T-type handle and the clutch, small screws can be tightened easily (it is difficult by the Model DN 10DSA). Besides, the Model DS 7DF is equipped with the soft- touch and nonskid grip handle made of elastomer (soft resin).

  • Page 5: Selling Point Descriptions

    4-1. Selling Point Descriptions 4-1-1. Soft-touch elastomer grip handle The Model DS 7DF is equipped with the soft-touch and nonskid grip handle made of elastomer (soft resin). Besides, the shape of the handle is improved for comfortable gripping. Maker HITACHI...
  • Page 6 The braking function allows the driver unit to stop rotation immediately when the trigger switch is released, which is a convenient feature during actual working. Also, the feedback system ensures a sufficiently large torque even in the variable speed range. Maker HITACHI Model DS 7DF DN 10DSA Type Variable speed On-off Variable speed...

  • Page 7: Specifications

    5. SPECIFICATIONS Capacity Screwdriver Machine screw 6 mm (1/4") • • • • • • • • Wood screw 5.1 dia. x 32 mm (#11 x 1-1/4") • • • • • • • • • • • • Drill Metal Mild steel 10 mm (3/8") [Thickness 1.6 mm (1/16")]...

  • Page 8: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS Catalog specifications Maker HITACHI Model DS 7DF DN 10DSA Mild steel 10 mm (3/8") 10 mm (3/8") 10 mm (3/8") Drilling Aluminum 10 mm (3/8") 10 mm (3/8") 10 mm (3/8") Wood 15 mm (19/32") 10 mm (3/8")

  • Page 9: Working Performance Per Single Charge

    No. of drilling or fastening operations per charge (*1) Working Test conditions Model name *800 *1200 *400 time Maker (sec./pc.) DS 7DF (W/FEB 7S) HITACHI DS 7DF (W/EB 712S) DS 7DF (W/FEB 7S) HITACHI DS 7DF (W/EB 712S) DS 7DF...

  • Page 10: Precautions In Sales Promotion

    8-1. Safety Instructions In the interest of promoting the safest and most efficient use of the Model DS 7DF Cordless Driver Drill by all of our customers, it is very important that at the time of sale, the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions, and fully understands the meaning of the precautions listed on the Caution Plate and Name Plate attached to each tool.
  • Page 11 Ensure that all customers understand that Type FEB 7S or EB 712S storage batteries should be turned in to any Hitachi Power Tools sales outlet or authorized service center when they are no longer capable of being recharged or repaired. If thrown into a fire, the batteries may explode, or, if discharged indiscriminately, leakage of the cadmium compound contained in the battery may cause environmental pollution.

  • Page 12: Inherent Drawbacks Of Cordless Driver Drills Requiring Particular Attention During Sales Promotion

    (4) Variation in amount of work possible per charge Although the nominal chargeable capacity of the storage batteries used with the Model DS 7DF is 1.4 Ah or 1.2 Ah, the actual capacity may vary within 10% of that value depending on the ambient temperature during use and charging, and the number of times the batteries have been recharged.

  • Page 13: Reference Materials

    Please instruct the customers to avoid continuous use of the Model DS 7DF and take a pause about 15 minutes after a single charge operation as a guide.

  • Page 14: Repair Guide

    10-1. Precautions in Disassembly and Reassembly The [Bold] numbers in the descriptions below correspond to the item numbers in the Parts List and exploded assembly diagram for the Model DS 7DF. 10-1-1. Disassembly (1) Removal of Housing (A). (B) Set [21] (a) First, align the "Drill mark"...
  • Page 15 Clutch Dial [3] (4) Disassembly of the clutch unit (a) After press up the hook of Clutch Dial [3] with the small flat- blade screwdriver, the Clutch Dial [3] and Click Spring [4] can be taken out as they are. (See Fig. 3.) (b) Turn the Nut [5] counterclockwise and remove it from the Hook Gear Case [8], then remove the Spring [6], Washer (D) [7],...
  • Page 16 (2) Reassembly of the gear unit (a) Apply grease (Hitachi Motor Grease No. 29, Code No. 930035) to the meshing parts of the gear. (b) Install the parts series from Ring Gear [10] to Screw Set D3 x 12 [16] into the Gear Case [8]. (See Fig. 6.) (i) Note the direction of each parts when installing the Ring Gear [10], Pinion (B) [12] as illustrated in Fig.
  • Page 17 Gear Case [8] together with the three projections on the Gear Case [8] aligned with the three holes at the Click Spring [4]. (See Fig. 9.) Apply grease (Hitachi Motor Grease No. 29, Code No. 930035) to the ridge at the Click Spring [4]. Insert the Clutch Dial [3] to the Gear Case [8] (See Fig. 10.) Mount the Nut [5] into the Clutch Dial [3] engaging the wider projection of the Nut [5] with the wider recess of the Clutch Dial [3].
  • Page 18 (5) Install the assembly reassembled in step (1) and the assembly reassembled in step (4) together. Apply grease (Hitachi Motor Grease No. 29, Code No. 930035 is recommended) to the pinion press-fitted on the Motor [18] shaft. Check that the pinion press-fitted onto the shaft of the Motor [18] and Planet Gear (A) Set [13] mesh properly.

  • Page 19: Precautions In Disassembly And Reassembly Of The Battery Charger

    (c) Install the Strap [29] into Housing (A). (d) Set the assembly reassembled in step (b) to Housing (A). (B) Set [21] and secure it with the eight Tapping Screws (W/Washer) D3 x 16 [19]. (e) Verify proper operation of the Clutch Dial [3]. When the assembly procedure up to step (c) is completed, ensure that the number "1"...

  • Page 20: Standard Repair Time (Unit) Schedules

    11. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL Fixed Work Flow DS 7DF Housing (A).(B) Set Motor DC-Speed Control Switch General Assembly Clutch Dial Drill Chuck (key-less) Click Spring Gear Box Ass'y Spring Gear Case Ring Gear Planet Gear (B) Set...
  • Page 21 LIST NO. F881 ELECTRIC TOOL PARTS LIST CORDLESS DRIVER DRILL 2003 • • Model DS 7DF (E1)

  • Page 22: Standard Accessories

    PARTS DS 7DF ITEM CODE NO. DESCRIPTION REMARKS USED 321-932 SPECIAL SCREW (LEFT HAND) M5X25 312-516 DRILL CHUCK 10TLRD-N (W/O CHUCK WRENCH) 321-904 CLUTCH DIAL 321-903 CLICK SPRING 321-902 321-901 SPRING 312-714 WASHER (D) 321-900 GEAR CASE 321-905 STEEL BALL D4 (10 PCS.)

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