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Hitachi WR 22SE Manual
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Hitachi WR 22SE Manual

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PRODUCT NAME
Hitachi Impact Wrench
WR 22SE
Model
CONTENTS
REPAIR GUIDE ----------------------------------------------------------------------------------------------------------------- 1
1. Precautions on disassembly and reassembly ------------------------------------------------------------- 1
STANDARD REPAIR TIME (UNIT) SCHEDULE ----------------------------------------------------------------------10
LIST No.
LIST No.
WR 22SE: E729
xxx. 2014
Jan. 2015
Overseas Sales Division
W

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Summary of Contents for Hitachi WR 22SE

  • Page 1 LIST No. LIST No. WR 22SE: E729 xxx. 2014 Jan. 2015 PRODUCT NAME Hitachi Impact Wrench WR 22SE Model CONTENTS REPAIR GUIDE ----------------------------------------------------------------------------------------------------------------- 1 1. Precautions on disassembly and reassembly ------------------------------------------------------------- 1 STANDARD REPAIR TIME (UNIT) SCHEDULE ----------------------------------------------------------------------10 Overseas Sales Division...
  • Page 2 1. Precautions on disassembly and reassembly [Bold] numbers in the description below correspond to the item numbers in the Parts List and exploded assembly diagram for the Model WR 22SE. Disassembly 1. Disassembly of hammer case (D) ass’y (1) Removal of hammer case (D) ass’y...
  • Page 3 2. Removal of the spring Using a hand press, push down the raised portions of Hammer (D) [11] to compress the Spring [14] fully. In this position, use a small flat-blade screwdriver to extract the two Steel Balls D7.14 [10] from the cam grooves of the Spindle [20] and Hammer (D) [11].
  • Page 4 3. Disassembly of the motor unit (1) Removal of rotor ass’y (D) Remove Rotor Ass’y (D) [29] together with Inner Cover (D) [27] from Housing (D) [34]. NOTE: Keep the removed Rotor Ass’y (D) [29] away from iron or other metal because Rotor Ass’y (D) [29] has a magnetic force.
  • Page 5 4. Removal of the switch Remove the four Screws M3.5 x 5 [40] from the Switch [39] and remove the Switch Adapter [41]. Then remove the Switch [39]. Fig. 6 • Removal of the switch [38] [37] [39] [40] [34] [41] [43] [44]...
  • Page 6 5. Disassembly of the power supply unit (1) Remove the four Screws M3.5 x 5 [40] from the Switch [39]. (2) Hold the Switch Adapter [41] and slowly pull it out. Fig. 7 • Disassembly of the power supply unit Sensor PCB ass’y Internal wire (black) Internal wire (white)
  • Page 7 Reassembly Perform reassembly by reversing the disassembly procedure. However, special attention should be given to the following items. 1. Reassembly of the power supply unit and its vicinity (1) Perform wiring according to the connecting diagram on page 9 when replacing the Switch [39] or Stator Controller (D) Set [33] with new one.
  • Page 8 Fig. 9 • Reassembly of the main body White internal wire (Power supply unit) White internal wire (Noise suppressor) Black internal wire (Power supply unit) Position the noise suppressor PCB in the stator holder (D) as shown in the figure. (4) Mount Rotor Ass’y (D) [29] and Fan Guide (D) [31] to Housing (D) [34].
  • Page 9 Application of lubricant (1) Apply Nippeco SEP-3A grease (Code No. 930035 (100 g)/930038 (2.5 kg)) to the following: • Pinion tooth flanks of Rotor Ass’y (D) [29] • Tooth flanks of the Ring Gear [23] • Two Gear Shafts [19] •...
  • Page 10 No-load current 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 Connecting diagram Fig.
  • Page 11 STANDARD REPAIR TIME (UNIT) SCHEDULE Variable MODEL 60 min. Fixed Work Flow WR 22SE Housing (D) Stator Controller Handle Switch (D) Set Cover (D) Cord Switch Rotor Adapter Ass'y (D) Cord Armor Ball Bearing (6000DD) Ball Bearing (608VV) Inner Cover (D)
  • Page 12 LIST NO. E729 IMPACT WRENCH 2015 · 1 · 20 Model WR 22SE (E1)
  • Page 13 PARTS WR 22SE ITEM DESCRIPTION REMARKS CODE NO. USED 337849 HAMMER CASE (D) ASS'Y INCLUD.2,4,5 337850 BUMPER (D) 323994 SEAL LOCK HEX. SOCKET HD. BOLT M5 X 45 971028 O-RING (P-28) 337851 METAL (F) 338357 WASHER (D) 338356 DAMPER (D)
  • Page 14 PARTS WR 22SE ITEM DESCRIPTION REMARKS CODE NO. USED 937631 CORD CLIP 953327 CORD ARMOR D8.8 938051 CORD ARMOR D10.1 500247Z CORD (CORD ARMOR D8.8) 500423Z CORD (CORD ARMOR D8.8) FOR MAL, SIN (230V),UAE (230V) 323974 CORD (CORD ARMOR D10.1) FOR TPE,...
  • Page 15 STANDARD ACCESSORIES WR 22SE ITEM CODE NO. DESCRIPTION REMARKS USED 338326 CASE 338327 SIDE HANDLE ASS'Y INCLUD.503-506 330209 SIDE HANDLE 323775 HANDLE HOLDER 338498 HANDLE RING 980903 SQUARE BOLT M8 OPTIONAL ACCESSORIES ITEM DESCRIPTION REMARKS CODE NO. USED 874535 INCLUD.602,603 EXTENSION BAR ASS'Y (SQUARE) 19.0MM X 150L...