Hitachi wh 14daf2 Technical Data And Service Manual
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Hitachi wh 14daf2 Technical Data And Service Manual

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MODEL
WH 14DAF2
Hitachi
Power Tools
CORDLESS IMPACT DRIVER
TECHNICAL DATA
AND
WH 14DAF2
SERVICE MANUAL
W
LIST No.: G843
May 2006
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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Summary of Contents for Hitachi wh 14daf2

  • Page 1 MODEL WH 14DAF2 Hitachi Power Tools CORDLESS IMPACT DRIVER TECHNICAL DATA WH 14DAF2 SERVICE MANUAL LIST No.: G843 May 2006 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 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: Competitor Symbol Utilized Company Name Model Name WH 12DAF2 HITACHI...

  • Page 3: Table Of Contents

    9. OTHER PRECAUTIONS ......................15 10. REPAIR GUIDE .......................... 16 10-1. Precautions in Disassembly and Reassembly ................16 10-2. Precautions in Disassembly and Reassembly of Battery Charger ..........22 11. STANDARD REPAIR TIME (UNIT) SCHEDULES..............23 Assembly Diagram for WH 14DAF2...

  • Page 4: Product Name

    Hitachi Cordless Impact Driver, Model WH 14DAF2 2. MARKETING OBJECTIVE The new Model WH 14DAF2 is 14.4 V version of the well-reputed Model WH 12DAF2. It incorporates many features including the following with the comparable price. Increased maximum tightening torque...

  • Page 5: Selling Points

    5. SELLING POINTS (1) Cordless impact driver Model WH 14DAF2 Powerful design Durable die-casting aluminum hammer case Max. torque 120 N m (1060 in-lbs.) • WH 12DAF2: 110 N m (975 in-lbs.) • Variable speed reversible Soft-grip handle switch with electric brake...

  • Page 6: Selling Point Descriptions

    5.3 mm diameter and 120 mm length) The maximum tightening torque of the Model WH 14DAF2 is greatly increased in comparison with the Model WH 12DAF2 thanks to the increased output of the motor.

  • Page 7: Specifications

    A bit holder is provided at the handle portion. It is very convenient for holding a spare bit. 6. SPECIFICATIONS 6-1. Specifications Cordless Impact Driver Model Item WH 14DAF2 Small screw M4 --- M8 (5/32" --- 5/16")* Capacity Ordinary bolt M5 --- M12 (3/16" --- 15/32") High-strength bolt M5 --- M10 (3/16"...

  • Page 8: Optional Accessories

    There are two types of attachment sizes for the driver bit and the socket. Please refer to the table below and select the attachment size for the driver bit or socket that is appropriate for your WH 14DAF2. Plus driver bit Bit No.
  • Page 9 Woodworking drill bit (Code No. 959183) Drill chuck adaptor set (Code No. 321823) The drill chuck adaptor set permits mounting of various types of locally-available drill bits for a variety of drilling operations. 83 mm (3-17/64") --- 6 ---...

  • Page 10: Comparisons With Similar Products

    : Max. tightening torque is based on tightening an M12 (15/32") bolt (in the case of WH 12DAF2) and M14 (9/16") bolt (in the case of WH 14DAF2) (strength grade: 12.9) for 3 sec. with a hexagon socket. : Main body weight does not include accessory tools (hexagon bit etc.).

  • Page 11: Tightening Torque

    7-2. Tightening Torque 7-2-1. Screw diameter and appropriate tightening torque Generally speaking, the appropriate tightening torque for a screw can be determined by the strength grade of the screw and the material tightened. Tables 1 and 2, and Fig. 4 below list data relative to the strength grade of various screws and the appropriate tightening torque.
  • Page 12 Ordinary bolt; strength grade 4.8 High-strength bolt; strength grade 12.9 Yield point or durable force: (45,500 psi) Tensile strength of the bolt: (56,900 psi) Washer Model WH 14DAF2 (kgf (kgf High-strength bolt Ordinary bolt (1200) (1200) M12 (t = 25 mm)

  • Page 13: Number Of Screws Driven

    (1) Number of screws driven HITACHI HITACHI Model WH 14DAF2 WH 12DAF2 Tightening condition EB 1214S EB 1414S Battery (Nominal capacity) (1.4 Ah)

  • Page 14: Precautions In Sales Promotion

    8. PRECAUTIONS IN SALES PROMOTION 8-1. Safety Instructions In the interest of promoting the safest and most efficient use of these tools by all 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 15 (10) Disposal of the Type EB 1414S storage battery Ensure that all customers understand that Type EB 1414S storage batteries should be turned in to any Hitachi power tool sales outlet or authorized service center when they are no longer capable of being recharged or repaired.

  • Page 16: Tightening Torque Inspection Prior To Operation

    8-2. Tightening Torque Inspection Prior to Operation As described and shown in Para. 7-2-2, the output tightening torque of which the Model WH 14DAF2 is capable in excess of the rated tightening torque of certain bolts and screws. Accordingly, if the tightening time is prolonged for such bolts and screws, it could cause damage to their threads or, in the worst case, cause them to be sheared off.

  • Page 17: Suggestions And Precautions For The Efficient Use Of The Charger

    (3) Different bolt diameter Differences in bolt diameter will cause variation of the required levels of tightening torque. Generally speaking, tightening torque is higher for large bolts. (4) Different materials being tightened When a bolt is tightened into a soft material such as aluminum, plastic, wood, etc., the tightening torque is considerably less than when the bolt is tightened into a hard material such as steel.

  • Page 18: Other Precautions

    9. OTHER PRECAUTIONS (1) Check for cracks or other damage on the socket Cracks or any other faults on the socket are very hazardous. In addition, cracks or other damage to accessories will cause loss of tightening torque efficiency. Advise the customer to inspect accessories often, and ensure there are no abnormalities.

  • Page 19: Repair Guide

    10. REPAIR GUIDE WARNING: Without fail, remove the battery from the main body before starting repair or maintenance work. Because the tool is cordless, if the battery is left in and the switch is activated inadvertently, the motor will start rotating unexpectedly, which could cause serious injury. 10-1.
  • Page 20 Small flat-blade screwdriver Anvil (B) [9] Retaining Ring [2] Washer (D) [3] Gap of retaining ring Guide Sleeve [5] Fig. 7-1 Fig. 7-2 Hold the body and adjust gap of the retaining ring to Press down washer (D) with the screwdriver. groove of anvil (B), then insert a small flat-blade screwdriver into the groove at an angle.
  • Page 21 Remove the hammer assembly from the J-297 base for washer (S) and support the end surface of Spindle (B) [17]. With a hand press, push down either of the raised faces of the Hammer [11] to compress the Hammer Spring [14]. In this position, extract the two Steel Balls D5.556 [10] from the cam grooves of Spindle (B) [17] and the Hammer [11] with a small flat-blade screwdriver or a similar tool.
  • Page 22 Internal Wire (Red) 115L [27] Motor [26] Red marking Depression for (Indicate positive side) anti-rotating Internal Wire Projection of the (Black) 65L [28] forwarding/reversing lever DC-Speed Control Switch [32] Internal Wire (Red) 115L [27] Internal Wire (Black) 65L [28] Fin [41] Machine Screw (W/Sp.
  • Page 23 (2) Reassembly of Housing (A).(B) Set [31] Mount housing (B) to housing (A), and secure them with the seven Tapping Screws (W/Flange) D4 x 20 (Black) [29]. (3) Reassembly of the mechanical parts (a) Put Washer (S) [15] onto the shaft of Spindle (B) [17] and mount the Hammer [11] containing the twenty- eight Steel Balls D3 [12], Washer (J) [13] and the Hammer Spring [14] to Spindle (B) [17].
  • Page 24 Twenty-eight Steel Balls D3 [12] Needle Roller [19] Tooth flanks and 5 mm diameter hole of the Idle Gear Set [18] (b) HITACHI MOTOR GREASE No. 29 Steel Ball D3.5 Sliding section of Anvil (B) [9] and the Guide Sleeve [5]...

  • Page 25: Precautions In Disassembly And Reassembly Of Battery Charger

    (9) Screw tightening torque Tapping Screw (W/Sp. Washer) D4 x 40 [6] 1.96 0.49 N m (20 5 kgf cm, 17.4 4.3 in-lbs.) • • • • • • • • • • • • • Tapping Screw (W/Flange) D4 x 20 (Black) [29] 1.96 0.49 N m (20...

  • Page 26: Standard Repair Time (Unit) Schedules

    11. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL 60 min. Fixed Work Flow WH 14DAF2 Hook Ass'y DC-Speed Control Switch Housing (A).(B) Set Inner Cover Damper Motor General Assembly Guide Sleeve Hammer Case Hammer Anvil (B) Steel Ball Ring Gear...
  • Page 27 Hitachi Power Tools LIST NO. G843 ELECTRIC TOOL PARTS LIST CORDLESS IMPACT DRIVER 2006 • • Model WH 14DAF2 (E1)
  • Page 28 PARTS WH 14DAF2 ITEM CODE NO. DESCRIPTION REMARKS USED 324-854 GEAR BOX (B) ASS’Y 1 INCLUD. 2-5, 7-25 315-984 RETAINING RING 315-983 WASHER (D) 320-409 GUIDE SPRING 323-954 GUIDE SLEEVE 992-630 TAPPING SCREW (W/SP. WASHER) D4X40 323-940 HAMMER CASE 319-535 STEEL BALL D3.5 (10 PCS.)

  • Page 29: Standard Accessories

    STANDARD ACCESSORIES WH 14DAF2 ITEM CODE NO. DESCRIPTION REMARKS USED CHARGER (MODEL UC 18YG) 324-359 CASE OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 992-671 + DRIVER BIT (B) NO. 2 50L 992-672 + DRIVER BIT (B) NO. 3 50L 992-689 NON-MAGNETIC HEX.
  • Page 30 WH 14DAF2 ITEM CODE NO. DESCRIPTION REMARKS USED - -- 4 - -- 5 -- 06 Printed in Japan (060525N)

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