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Hitachi WH 14DAF2, Technical Data And Service Manual

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Hitachi WH 14DAF2 Technical Data And Service Manual Download Page 25

--- 22 ---

(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   5 kgf

•

cm, 17.4   4.3 in-lbs.)

 Machine Screw (W/Sp. Washer) M3 x 4 

[40]

 

• • • • • • • • • •

 0.29 --- 0.39 N

•

m (3 --- 4 kgf

•

cm, 2.6 --- 3.5 in-lbs.)

 Special Screw (A) M5 

[43]

 

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

 1.96    0.49 N

•

m (20    5 kgf

•

cm, 17.4    4.3 in-lbs.)

10-2. Precautions in Disassembly and Reassembly of Battery Charger

Refer to the Technical Data and Service Manual for precautions in disassembly and reassembly of the Model

UC 18YG Battery Charger.

Summary of Contents for WH 14DAF2

Page 1: ...TECHNICAL DATA AND SERVICE MANUAL SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No G843 May 2006 W MODEL WH 14DAF2 Hitachi Power Tools CORDLESS IMPACT DRIVER WH 14DAF2 ...

Page 2: ...L 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 Symbol Utilized Competitor Company Name Model Name H HITACHI WH 12DAF2 ...

Page 3: ... Torque 8 7 3 Number of Screws Driven 10 8 PRECAUTIONS IN SALES PROMOTION 11 8 1 Safety Instructions 11 8 2 Tightening Torque Inspection Prior to Operation 13 8 3 Tightening Torque Variation 13 8 4 Suggestions and Precautions for the Efficient Use of the Charger 14 9 OTHER PRECAUTIONS 15 10 REPAIR GUIDE 16 10 1 Precautions in Disassembly and Reassembly 16 10 2 Precautions in Disassembly and Reasse...

Page 4: ...y Tightening loosening of wood screws Construction industry Assembly of scaffolding roofing aluminum sashes fencing etc removal of plastic cones from concrete forms mounting removal of form ties drilling into the wood frames of concrete forms etc Manufacturing industry Assembly work for automobiles rolling stock shipbuilding agricultural machinery and tools industrial machines steel furniture etc ...

Page 5: ...el WH 14DAF2 Soft grip handle Variable speed reversible switch with electric brake Durable die casting aluminum hammer case Powerful design Convenient belt hook with LED job light Bit holder Max torque 120 N m 1060 in lbs WH 12DAF2 110 N m 975 in lbs ...

Page 6: ...rgotten 3 Increased tightening torque thanks to the powerful motor 30 faster than the conventional model when tightening a universal machine screw of 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 Comparison of number of screws tightened Figure 1 shows the...

Page 7: ... 1414S Overall length x height Center height 26 5 mm 1 3 64 Battery Type EB 1414S Sealed cylindrical nickel cadmium battery Nominal voltage DC 14 4 V Nominal life Charging discharging approximately 300 cycles in the case of the Model UC 18YG Nominal capacity 1 4 Ah Weight Housing Item Model Cordless Impact Driver WH 14DAF2 176 mm 6 15 16 x 224 mm 8 13 16 with battery EB 1214S Overcharge prevention...

Page 8: ...cket Part Name L mm B mm Code No 985329 10 3 8 65 2 9 16 10 6 mm Hexagon socket 996178 12 15 32 65 2 9 16 12 5 16 Hexagon socket 996179 13 1 2 65 2 9 16 13 8 mm Hexagon socket 996180 14 9 16 65 2 9 16 14 10 mm Hexagon socket small type 996181 16 5 8 65 2 9 16 16 10 mm Hexagon socket 996182 17 21 32 65 2 9 16 17 10 mm Hexagon socket 996197 21 53 64 166 6 17 32 21 1 2 Hexagon long socket 992689 7 1 ...

Page 9: ...l bit Code No 959183 14 mm dia 35 64 83 mm 3 17 64 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 ...

Page 10: ...64 1 7 3 7 lbs With EB 1414S 224 8 13 16 With EB 1414S Variable speed Electric brake Equipped Charging time EB 1414S Approx 30 min 1 1 In the case of tapping screws and wood screws a minimum of M3 is possible 2 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 3 Main...

Page 11: ...r reference appropriate tightening torque is calculated with the following formula Study and use this formula for accurate selection of tightening torque T k d p T Appropriate tightening torque kgf cm d Nominal diameter for the screw mm p Recommended axial tightening force to be applied to the screw kgf p rated axial stress kgf cm2 x 0 8 x effective sectional area of the thread mm2 K Torque coeffi...

Page 12: ... screws are being tightened directly into a steel plate accordingly the torque goes up very abruptly in comparison with ordinary bolt tightening conditions Model WH 14DAF2 Bolt Nut Steel plate thickness t The following bolts were utilized Ordinary bolt strength grade 4 8 High strength bolt strength grade 12 9 Strength grade is read as follows 4 8 Yield point or durable force 45 500 psi Tensile str...

Page 13: ...mber of screws which can be tightened per charge will vary slightly depending on screw tightening conditions screw sizes ambient temperatures and the charging capacity of the battery 1 Number of screws driven Tightening condition Model HITACHI WH 14DAF2 EB 1414S 1 4 Ah Machine screw M8 x 16 mm 730 HITACHI WH 12DAF2 500 Wood screw 4 2 mm dia x 75 mm hard wood 125 Wood screw 4 5 mm dia x 90 mm hard ...

Page 14: ...er is reversed the charger may not function properly 4 Ensure the power source voltage is the same as that indicated on the Name Plate of the charger Use of any other power source DC outlet fuel powered generator etc will cause the charger to overheat and burn out 5 Do not use any voltage increasing equipment transformer etc between the power source and the charger If the charger is used with volt...

Page 15: ...ould 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 If thrown into a fire the batteries may explode or if discarded indiscriminately leakage of the cadmium compound contained in the battery may cause environmental pollution B Caution Plates 1 The following precautions are listed on the Caution Plate at...

Page 16: ...o confirm that appropriate tightening torque is obtained by measuring the torque with an appropriate torque wrench or torque driver at the beginning of the tightening operations and as necessary during the tightening operations In addition the torque values shown in Para 7 2 1 above are useful as a handy reference and may be utilized as tentative standards 1 Voltage of battery Tightening torque is...

Page 17: ...se a proportionate loss of tightening torque In addition use of an incorrect size socket slightly larger than the bolt being tightened will also result in decreased torque 7 Bolt and nut rotate together Tightening torque that can be achieved will be considerably decreased if the bolt and nut rotate together during the tightening operation The customer should be advised to carefully observe the ope...

Page 18: ...dimensions are larger than the bolts or nuts it will not only cause insufficient tightening torque but could also easily cause damage to the socket Please refer to the tables in Para 6 2 for appropriate socket dimensions 3 Hammering section lubrication Frequent or continuous use of the tool will cause excessive temperature rise of the hammering section resulting in depletion of the grease and subs...

Page 19: ...k Ass y W Light 35 Remove Special Screw A M5 43 with a flatblade screwdriver or a coin then remove the Hook Ass y W Light 35 and the Hook Spring 42 3 Removal of housing B Remove the seven Tapping Screws W Flange D4 x 20 Black 29 from the main body to remove housing B 4 Remove the DC Speed Control Switch 32 the Fin 41 and the Motor 26 together Remove the Pushing Button 33 5 Disassembly of the switc...

Page 20: ...il it is free The Guide Sleeve 5 can now be removed Avoid quickly raising the retaining ring or it may fly out forcefully The retaining ring can also be easily removed by widening the gap of the retaining ring with the jig for retaining ring and slowly raising the retaining ring with a small flat blade screwdriver 7 Disassembly of the hammer assembly Hammer 11 Push down Spindle B 17 Hammer Spring ...

Page 21: ... diagram Fig 10 for proper wiring b Pay attention to the polarity of the Motor 26 when soldering the Internal Wire Red 115L 27 and Internal Wire Black 65L 28 to the Motor 26 The red marked side of the Motor 26 is positive c When mounting the Motor 26 into housing A pay attention to the position of the Internal Wire Red 115L 27 and the depression for preventing motor body from rotating in housing A...

Page 22: ...65L 28 Internal Wire Red 115L 27 Red marking Indicate positive side Internal Wire Red 115L 27 Motor 26 Fin 41 Internal Wire Black 65L 28 Projection of the forwarding reversing lever FET Machine Screw W Sp Washer M3 x 4 40 Fig 10 DC Speed Control Switch 32 ...

Page 23: ...Mount the hammer assembly onto the J 297 base for washer S With a hand press push down the top of Spindle B 17 to compress the Hammer Spring 14 On this condition mount the Stopper 16 onto the spindle shaft and then release the hand press e Mount the Ring Gear 20 Washer E 21 Ball Bearing 6901VVCMPS2L 22 Inner Cover 23 Damper 24 and the Retaining Ring 25 to the above reassembly Furthermore mount the...

Page 24: ...e inside of the housing 7 Check whether the direction of rotation of Anvil B 9 coincides with the directional markings on the push on side of the Pushing Button 33 When the Pushing Button 33 is turned to the R side the direction of rotation of Anvil B 9 should be clockwise as viewed from behind 8 Lubrication a ATTOLUB MS No 2 Cam groove and sliding section of Spindle B 17 Cam groove and projection...

Page 25: ...20 5 kgf cm 17 4 4 3 in lbs Machine Screw W Sp Washer M3 x 4 40 0 29 0 39 N m 3 4 kgf cm 2 6 3 5 in lbs Special Screw A M5 43 1 96 0 49 N m 20 5 kgf cm 17 4 4 3 in lbs 10 2 Precautions in Disassembly and Reassembly of Battery Charger Refer to the Technical Data and Service Manual for precautions in disassembly and reassembly of the Model UC 18YG Battery Charger ...

Page 26: ...xed Variable WH 14DAF2 Work Flow Inner Cover Damper Motor Hook Ass y Hammer Case Anvil B Ring Gear Housing A B Set General Assembly Hammer Steel Ball Hammer Spring Spindle B Idle Gear Set Needle Roller Ball Bearing 6901VV Gear Box B Ass y Guide Sleeve DC Speed Control Switch ...

Page 27: ... LIST LIST NO G843 CORDLESS IMPACT DRIVER Model WH 14DAF2 2006 5 25 E1 Hitachi Power Tools 502 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 40 41 42 43 44 39 501 ...

Page 28: ... SET 2 PCS 2 19 323 942 NEEDLE ROLLER 2 20 323 946 RING GEAR 1 21 319 911 WASHER E 1 22 690 1VV BALL BEARING 6901VVCMPS2L 1 23 323 947 INNER COVER 1 24 321 894 DAMPER 1 25 321 893 RETAINING RING 1 26 326 102 MOTOR 1 27 321 876 INTERNAL WIRE RED 115L 1 28 326 184 INTERNAL WIRE BLACK 65L 1 29 302 086 TAPPING SCREW W FLANGE D4X20 BLACK 7 30 NAME PLATE 1 31 326 103 HOUSING A B SET 1 32 326 104 DC SPEE...

Page 29: ...96 177 NON MAGNETIC HEX SOCKET 8MM 65L 1 605 985 329 NON MAGNETIC HEX SOCKET 10MM 65L 1 606 996 178 NON MAGNETIC HEX SOCKET 12MM 65L 1 607 996 179 NON MAGNETIC HEX SOCKET 13MM 65L 1 608 996 180 NON MAGNETIC HEX SOCKET 14MM 65L 1 609 996 181 NON MAGNETIC HEX SOCKET 16MM 65L 1 610 996 182 NON MAGNETIC HEX SOCKET 17MM 65L 1 611 996 197 HEX SOCKET LONG 21MMX166L 1 612 321 823 DRILL CHUCK AND ADAPTER S...

Page 30: ... 4 ITEM NO CODE NO DESCRIPTION REMARKS NO USED 5 06 WH 14DAF2 Printed in Japan 060525N ...

Page 31: ......

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