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Powerful tightening torque 105 N

m

The Model WH 10DL provides the highest tightening torque in its class in spite of the compact body.

Maker 

• 

Model

HITACHI

WH 10DL

C

B

Tightening torque (N

m)

105 (114)

90 (104)

100 (98)

* The values in parentheses mean the actually measured values when tightening M12 high-strength bolts

with a hexagon socket for 3 seconds. Please note that the above data are intended for reference
purposes only because the actual values may vary slightly depending on hardness of workpieces,
diameter of thread, ambient temperature, characteristics of the battery, etc.

   Battery level warning lamp

The battery level can be checked by pulling the
trigger switch while the power tool is in a no-load
state. The battery level warning lamp lights when the
battery power is very low. If this happens, charge the
battery immediately.

Multiple battery protection circuits for safety

The Model WH 10DL is equipped with the multiple battery protection circuits for safe and economical
operation with the long-life battery.

Protection circuit

Overcurrent

protection

Overheat

protection

Overdischarge

protection

Overcharge

protection

HITACHI

Provided

Provided

Provided

Provided

B

Provided

Not provided

Not provided

Provided

C

Not provided

Not provided

Not provided

Provided

* While B's protection circuits monitor all the cells at once, the Model WH 10DL's circuits monitor each cell

for safer operation.

Summary of Contents for WH10DL

Page 1: ...ircuits for safety Equipped with 10 8 V lithium ion battery Replaceable carbon brushes The new cordless impact driver Model WH 10DL is equipped with the newly developed 10 8 V lithium ion battery Features of the Model WH 10DL include the following 1 Easy to handle thanks to the most compact body in its class 2 Thin handle comfortably fits in the palm of the operator s hand 3 Optimally balanced des...

Page 2: ...chi 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 of our competitor s The symbol s utilized here is are as follows Competitors Symbols Utilized Company Name Model Name B BOSCH GDR10 8V LI C Makita TD090DWX ...

Page 3: ...UTIONS IN SALES PROMOTION 10 1 Safety instructions 10 2 Tightening torque inspection prior to operation 12 3 Tightening torque variation 12 4 Precautions for efficient use of charger and battery 13 5 Other precautions 13 REPAIR GUIDE 14 1 Precautions in disassembly and reassembly 14 2 Precautions in disassembly and reassembly of battery charger 23 STANDARD REPAIR TIME UNIT SCHEDULES 24 Assembly di...

Page 4: ...rator s hand The Model WH 10DL is suitable for continuous operation because it minimizes operator s fatigue Maker Model HITACHI WH 10DL C B Perimeter of grip mm 130 155 155 Optimally balanced design with the center of gravity maintained at the center of the grip The Model WH 10DL provides excellent operability thanks to the optimally balanced design with the center of gravity maintained at the cen...

Page 5: ...ing lamp The battery level can be checked by pulling the trigger switch while the power tool is in a no load state The battery level warning lamp lights when the battery power is very low If this happens charge the battery immediately Multiple battery protection circuits for safety The Model WH 10DL is equipped with the multiple battery protection circuits for safe and economical operation with th...

Page 6: ...ction that automatically stops output to extend the battery life The motor may stop automatically in any of the following cases 1 2 and 3 even if the switch is depressed continuously during operation This is because the protective function is activated and the battery is not faulty Protective function Cause of trouble Countermeasure 1 Overdischarge protection circuit Battery voltage is decreased t...

Page 7: ...verall length x height 139 mm 5 15 32 x 204 mm 8 1 32 Center height 26 5 mm 1 1 16 Battery Type BCL 1015 Sealed cylindrical lithium ion battery Nominal voltage DC 10 8 V Nominal life Charging discharging approximately 1 000 cycles in the case of the Model UC 10SFL charger Nominal capacity 1 5 Ah Charger Model UC 10SFL Overcharge prevention system 1 Stop current detection 2 Battery surface temperat...

Page 8: ...000 0 to 3 000 Overall length x height mm 139 x 204 5 15 32 x 8 1 32 166 x 169 6 17 32 x 6 5 8 155 x 178 6 1 8 x 7 Main body weight kg 0 9 2 0 lbs 1 0 2 2 lbs 0 92 2 0 lbs Tool tip mounting system Driver chuck Driver chuck Driver chuck Type of switch Variable speed switch with forward reverse changeover lever Variable speed switch with forward reverse changeover lever Variable speed switch with fo...

Page 9: ...torque 1 Tightening torque characteristic comparisons Test conditions Bolt M12 x 45 mm high strength bolt Steel plate SS34P Thickness 25 mm Accessory tool Hexagon socket length 40 mm width across flat 19 mm C WH 10DL B ...

Page 10: ...ded axial tightening force to be applied to the screw kgf p Rated axial stress kgf mm2 x 0 8 x Effective sectional area of thread mm2 k Torque coefficient 0 17 Strength grade and rated axial stress of thread Strength grade 4 8 6 8 8 8 12 9 Rated axial stress kgf mm2 29 1 43 7 58 2 95 Material Mild steel Alloy steel including Ni Mn Cr etc Heat treatment Not processed Processed Hard material Diamete...

Page 11: ... The term tightening time means the impact time after the lower surface of the bolt comes in contact with the material to be tightened Each bolt is directly tightened into a steel plate under the following tightening conditions Accordingly the torque goes up very abruptly in comparison with the actual bolt tightening conditions Bolt Nut Steel plate thickness t Following bolts were used Ordinary bo...

Page 12: ...el 1 2 3 4 5 6 7 8 9 10 sec HITACHI WH 10DL 4 4 B 6 5 C 4 4 4 Per charge working capacity comparison The table below shows a comparison of the number of screws that can be tightened per battery charge between the Model WH 10DL and the competitors Please note that the data below are intended for reference purposes only because the number of screws that can be tightened per charge may vary depending...

Page 13: ...he charger to overheat and burn out 4 Do not use any voltage increasing equipment transformer etc between the power source and the charger If the charger is used with voltage higher than that indicated on the unit it will not function properly 5 Conduct battery charging at an ambient temperature range of 0 C to 40 C 32 F to 104 F Special temperature sensitive devices are employed in the charger to...

Page 14: ...the Name Plate and Caution Plate attached to the main body of the Model WH 10DL For the U S A and Canada Warning To reduce the risk of injury user must read Instruction Manual Risk of fire burn or explosion Use only with battery BCL 1015 AVERTISSEMENT Afin de reduire le risque de blessures I utilisateur doit lire le mode d emploi 2 The following cautions are listed on the Name Plate attached to th...

Page 15: ...ing torque decreases as the number of bolts tightened increases This phenomenon is caused by the decline in voltage output of the battery due to the increasing number of bolts tightened In particular the tightening torque decreases rapidly just before the overdischarge protection circuit is activated As this phenomenon is an inherent drawback in any cordless impact driver wrench salespersons are r...

Page 16: ...e tool the pilot lamp may not light up even though the battery is connected to the Model UC 10SFL charger This is because the built in thermostat functions to stop the charging when the temperature of the storage battery is 40 C 104 F or higher In such a case the customers should be advised to place the battery in a shaded area with a good airflow and allow sufficient cooling before recharging Thi...

Page 17: ... and reassembly The Bold numbers in the description below correspond to the item numbers in the Parts List and the exploded assembly diagram of the Model WH 10DL 1 Removal of guide sleeve C By following the procedure shown in Figs 1 to 4 remove the Retaining Ring 2 Washer F 3 Guide Spring C 4 and Guide Sleeve C 5 in this order Avoid quickly raising the Retaining Ring 2 or it may fly out forcefully...

Page 18: ...34 in a piece Remove Pushing Button A 32 5 Disassembly of the hammer assembly 1 Mount the hammer assembly onto the J 297 base for washer S special tool With a hand press push down the top of the Spindle 16 to compress the Hammer Spring 13 In this position remove Stopper A 15 with a small flat blade screwdriver then release the hand press 2 Remove the hammer assembly from the J 297 base for washer ...

Page 19: ...in the B direction as shown below holding the Ring Gear 21 securely because Magnet G 23 has a strong magnetism Dust Guard Fin 24 and the side yoke can be easily removed from Magnet G 23 by holding Magnet G 23 securely and pulling them in the axial direction because they are mounted to Magnet G 23 magnetically 2 Support the Ring Gear 21 so that it does not contact the fan of the Armature and Pinion...

Page 20: ... terminal of the Switch W Controller and Tube 34 as shown in the following wiring diagram 2 Push the three internal wires that connect the switch with the controller of the Switch W Controller and Tube 34 in the groove of housing A so that they are not pinched 3 Put the internal wires connected to the LED light between the ribs of housing A as shown in the wiring diagram so that they are not pinch...

Page 21: ...ve Then release the hand press 4 Mount the hammer assembly onto the J 297 base for washer S With a hand press push down the top of the Spindle 16 to compress the Hammer Spring 13 On this condition mount Stopper A 15 onto the spindle shaft and then release the hand press 5 Insert the tip of the Spindle 16 into Anvil S 9 and cover it with the Hammer Case 7 6 Check that the Spindle 16 is inserted int...

Page 22: ...ng A 4 Pay attention to the following when mounting Mount the Hammer Case 7 to the housing so that the protrusion of the Hammer Case 7 for locking contacts the concave portion of the housing as shown in the following figure Check that the Hammer Case 7 is mounted to the housing properly If the Hammer Case 7 is not fitted in the specified groove of the housing or the rib of the Ring Gear 21 is not ...

Page 23: ...d Fin 24 Protrusion Notch Concave portion Convex portion Flange Reassembly of housing A B set 2 Side yoke Magnet G 23 Fit the protrusion of Housing A B set 30 in the notch of Magnet G 23 for locking Housing A B set 30 Magnet G 23 ...

Page 24: ...set 3 Brush Block 25 Magnet G 23 Dust Guard Fin 24 Ring Gear 21 Fit the Hammer Case 7 in housing A securely Hammer Case 7 Protrusion for locking Fit the protrusion of the Hammer Case 7 for locking in the concave portion of housing A ...

Page 25: ...er it with the Front Cap 6 5 Mounting the guide sleeve Insert one Steel Ball D3 175 8 into the hole of Anvil S 9 Mount Guide Sleeve C 5 Guide Spring C 4 and Washer F 3 in sequence Mount the Retaining Ring 2 into the groove of the anvil using J 339 jigs E and F for retaining ring NOTE Be sure to replace the Retaining Ring 2 with new one because the Retaining Ring 2 may be deformed and Guide Sleeve ...

Page 26: ... 15 4 kgf cm Check the following after reassembly 1 Check that the switching operation is smooth and the Model WH 10DL can start stop change speed and perform forward reverse operation reliably 2 Check that the LED light lights when tuning on the switch 3 Check that the rotation direction of the anvil coincides with the push on side of pushing button A When pushing button A is turned to R side the...

Page 27: ...0DL General Assembly Guide Sleeve Ass y Switch Armature and Pinion Set Magnet A Brush Block Hammer Case Anvil S Ring Gear Housing A B Set Hammer Steel Ball Hammer Spring Spindle Idle Gear Set Needle Roller A Ball Bearing 6901VV STANDARD REPAIR TIME UNIT SCHEDULES ...

Page 28: ...Model WH 10DL CORDLESS DRIVER LIST NO H802 E1 1 2 3 4 5 6 7 8 9 10 11 8 12 13 14 15 16 17 18 19 20 21 22 25 26 27 28 29 30 23 24 31 35 32 33 34 501 502 503 ...

Page 29: ...44 IDLE GEAR SET 2 PCS 2 18 324 234 NEEDLE ROLLER A 2 19 319 911 WASHER E 1 20 690 1VV BALL BEARING 6901VVCMPS2L 1 21 329 545 RING GEAR 1 22 360 842 ARMATURE AND PINION SET 1 23 329 588 MAGNET G W SIDE YOKE 1 24 329 546 DUST GUARD FIN 1 25 329 547 BRUSH BLOCK 1 26 999 054 CARBON BRUSH 5X6X11 5 1 PAIR 2 27 319 918 BRUSH CAP 2 28 313 687 TAPPING SCREW W FLANGE D3X16 BLACK 9 29 NAME PLATE 1 30 329 58...

Page 30: ... MAGNETIC HEX SOCKET 10MM 65L 1 607 996 178 NON MAGNETIC HEX SOCKET 12MM 65L 1 608 996 179 NON MAGNETIC HEX SOCKET 13MM 65L 1 609 996 180 NON MAGNETIC HEX SOCKET 14MM 65L 1 610 996 185 NON MAGNETIC HEX SOCKET 15MM 65L 1 611 996 181 NON MAGNETIC HEX SOCKET 16MM 65L 1 612 996 182 NON MAGNETIC HEX SOCKET 17MM 65L 1 613 996 186 NON MAGNETIC HEX SOCKET 19MM 65L 1 614 996 197 HEX SOCKET LONG 21MMX166L 1...

Page 31: ...WH 10DL DESCRIPTION REMARKS 4 Printed in Japan 3 08 080304N ALTERNATIVE PARTS NO USED CODE NO ITEM NO ...

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