Hitachi WR 25SE Service Manual Download Page 11

 

-10- 

 

 

MODEL 

Variable 

Fixed 

10 20 30 40 50 

60 

min. 

 
 
 

WR 25SE 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

General Assembly 

 

Work Flow 

 
 

 
 
 
 
 
Handle  

(A).(B) Set 

Cord Armor 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tail  

Bumper (D) 

 

 
 

 
 
 
 
 
 
 
 
 
Switch 
Cord 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
Rotor  

Ass'y (C)

Ball Bearing 

 (6001DD)

Ball Bearing 

 (608VV)

Inner  

Cover (C)

 
 
Hammer (C)
Steel Ball 

D10.3 x 2

Steel Ball 

D4.76 x 10

Hammer  

Spring (C)

Spring  

Sheet (C)

 
 
Hammer  

Case (C) 

Ass’y

O-ring 
Anvil (C) 
Ring  

Gear (C)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
Housing (C) 
Stator  

Controller 

(C) Set

 
 
 
 
 
 
 
 
 
 
 
Spindle (C) 
Idle Gear Set
Needle  

Roller x 2

 

 

 

 

STANDARD REPAIR TIME (UNIT) SCHEDULE

 

Summary of Contents for WR 25SE

Page 1: ...itachi Impact Wrench Model WR 25SE LIST No xxx 2014 REPAIR GUIDE 1 1 Precautions on disassembly and reassembly 1 STANDARD REPAIR TIME UNIT SCHEDULE 10 CONTENTS Overseas Sales Division LIST No WR 25SE E730 Jan 2015 W ...

Page 2: ...l of handle A B set Remove the four Screws D4 x 20 45 two Bolts M5 x 20 44 on handle B and two Screws D4 x 16 41 to remove handle B Remove the remaining two Bolts M5 x 20 44 to remove handle A 2 Removal of hammer case C ass y Remove the four Bolts M6 x 50 1 Supporting Hammer Case C Ass y 6 tap the tip of Anvil C 12 with a wooden hammer to remove Hammer Case C Ass y 6 3 Removal of the other parts R...

Page 3: ... 3 13 from the cam grooves of Spindle C 20 and Hammer C 14 Then slowly release the hand press and remove Hammer C 14 from Spindle C 20 to remove Hammer Spring C 17 NOTE Be careful not to lose the thirty five Steel Balls D4 76 15 and Hammer Washer C 16 mounted between Hammer C 14 and Hammer Spring C 17 16 17 12 13 14 15 19 20 21 20 14 13 Raised portion of the hammer Top of the spindle cam Steel bal...

Page 4: ... C 27 from Housing C 34 NOTE Keep the removed Rotor Ass y C 30 away from iron or other metal because Rotor Ass y C 30 has a magnetic force 2 Removal of the power supply unit Remove the two Screws D5 x 70 32 Supporting Housing C 34 tap the end surface of Housing C 34 with a wooden hammer to remove the power supply unit 33 27 28 29 30 31 32 38 34 36 ...

Page 5: ... 4 Fig 5 Removal of the switch 4 Removal of the switch Remove the four Screws M3 5 x 5 39 and remove the Switch 38 42 38 39 47 46 33 42 43 43 48 ...

Page 6: ... unit Remove the four Screws M3 5 x 5 39 from the Switch 39 Internal wire black Internal wire white Internal wire black 38 Sensor PCB ass y 48 46 Filter PCB ass y 47 Noise suppressor PCB ass y Main PCB ass y Internal wire white Internal wire white 43 42 43 43 39 Internal wire red ...

Page 7: ...Hammer C 14 Use a hand press or similar tool to press the raised portion of Hammer C 14 so as to compress Hammer Spring C 17 until it contacts Spindle C 20 and then hold it there 3 Put the two Steel Balls D10 3 13 in the steel ball insertion groove Check that the Steel Balls D10 3 13 are in the cam groove and then release the hand press 4 Mount the Idle Gear Set 2 pcs 21 and the two Needle Rollers...

Page 8: ... amount of grease to the two Needle Rollers 22 and mount it to Ring Gear C 23 NOTE Be careful of the direction of Washer B 11 6 Mount Washer C 9 and Damper C 10 to Hammer Case C Ass y 6 7 Secure Hammer Case C Ass y 6 to Housing C 34 with the four Bolts M6 x 50 1 Then secure Handle B 37 with the two Bolts M5 x 20 44 8 Mount power supply unit C to Handle B 37 as shown in Fig 9 Mount the Cord Clip 40...

Page 9: ...Hd Tapping Screw D5 x 70 32 2 9 0 5 N m 30 5 kgf cm Tapping Screw W Flange D4 x 16 41 1 8 0 3 N m 18 3 kgf cm Check the following after reassembly 1 Operate the Switch 38 and check that the switch moves smoothly and the switch operations ON OFF forward and reverse are normal 2 Press the Switch 39 in R direction and slowly release the switch Check that the switch returns to the original position Th...

Page 10: ...ss y Switch 38 Main PCB ass y Filter PCB ass y After no load operation for 30 minutes the no load current value should be as follows Voltage 110 V 120 V 220 V 230 V 240 V Current max 3 5 A 3 5 A 1 5 A 1 5 A 1 5 A No load current Connecting diagram ...

Page 11: ...D Switch Cord Rotor Ass y C Ball Bearing 6001DD Ball Bearing 608VV Inner Cover C Hammer C Steel Ball D10 3 x 2 Steel Ball D4 76 x 10 Hammer Spring C Spring Sheet C Hammer Case C Ass y O ring Anvil C Ring Gear C Housing C Stator Controller C Set Spindle C Idle Gear Set Needle Roller x 2 STANDARD REPAIR TIME UNIT SCHEDULE ...

Page 12: ...E IMPACT WRENCH LIST NO E730 2015 1 20 E1 A 1 2 3 4 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 38 39 41 46 47 48 45 34 35 36 44 37 A 501 505 502 503 504 506 7 8 9 5 6 10 11 40 42 42 43 43 43 ...

Page 13: ... 26 337821 PACKING C 1 27 337824 INNER COVER C 1 28 337823 FAN GUIDE C 1 29 6001DD BALL BEARING 6001DDCMPS2L 1 30 360989 ROTOR ASS Y C 1 INCLUD 29 31 31 333945 BALL BEARING 608VV 1 32 961400 HEX HD TAPPING SCREW D5 X 70 2 33 340895C STATOR CONTROLLER C SET 110V 1 33 340895D STATOR CONTROLLER C SET 120V 127V 1 33 340895E STATOR CONTROLLER C SET 220V 230V 1 33 340895F STATOR CONTROLLER C SET 240V 1 ...

Page 14: ... FOR INA IND 48 500439Z CORD 1 CORD ARMOR D8 8 FOR AUS NZL 48 500240Z CORD 1 CORD ARMOR D8 8 FOR USA CAN 48 500450Z CORD 1 CORD ARMOR D8 8 FOR GBR 230V 48 500461Z CORD 1 CORD ARMOR D8 8 FOR GBR 110V 48 500248Z CORD 1 CORD ARMOR D8 8 FOR SUI 48 500496Z CORD 1 CORD ARMOR D8 8 FOR CHN 48 500475Z CORD 1 CORD ARMOR D8 8 FOR KOR 48 500487Z CORD 1 CORD ARMOR D8 8 FOR BRA 48 500201Z CORD 1 CORD ARMOR D10 ...

Page 15: ... 502 338347 SIDE HANDLE ASS Y 1 INCLUD 503 506 503 330209 SIDE HANDLE 1 504 323775 HANDLE HOLDER 1 505 338502 HANDLE RING 1 506 980903 SQUARE BOLT M8 1 4 Printed in Japan 1 15 150120N ALTERNATIVE PARTS STANDARD ACCESSORIES NO USED CODE NO ITEM NO ...

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