Fein WSG 8-115 Repair Instructions
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Fein WSG 8-115 Repair Instructions

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70Inox
Repair instructions
C-SC_CSSM
Version 1.0
2014-12-18
All rights reserved by FEIN, especially in case of industrial rights registration.
FEIN retains all rights of disposal, such as copying and circulation
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Page 1 of 47

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  • Page 1 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox Repair instructions C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 1 of 47 FEIN retains all rights of disposal, such as copying and circulation...

  • Page 2: Table Of Contents

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox Contents 1. Models described 2. Technical data 3. Notes and requirements 4. Tools required 5. Lubricants and auxiliary substances required 6. Disassembly 7. Assembly 8. Connection diagram C-SC_CSSM Version 1.0...

  • Page 3: Models Described

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 1. Models described These instructions describe how to repair the following models: Model Order number WSG 8-115 7 221 73 00 23 0 WSG 8-125...

  • Page 4: Technical Data

    Up-to-date test data for all models can be found on the FEIN Extranet (Customer Service → Repair Guides). Lubricants The lubricants and container sizes available from FEIN can be found on the FEIN Extranet (Customer Service → Repair Guides). Lists of spare parts Lists of spare parts and exploded views are available online at www.fein.com...

  • Page 5: Notes And Requirements

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 3. Notes and requirements Note These instructions are only intended for persons with suitable technical training. It is assumed that the reader has mechanical and electrical training.

  • Page 6: Tools Required

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 4. Tools required Standard tools Special tools Plastic hammer Drawing-off socket cap 6 41 04 150 00 8 Slotted screwdriver (small) Chuck cone, 19 mm...

  • Page 7: Lubricants And Auxiliary Substances Required

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 5. Lubricants and auxiliary substances required Lubricants WSG 8-115; WSG 8-125; WSG 12-125P; WSG 11-125; WSG 15-125P Grease 0 40 101 01 00 4 21 g Gearbox WSG 15-125PS;...

  • Page 8: Disassembly

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling housing cover 1. Unscrew two screws (1) and take off bottom part of cover (2). Tools: - Torx T15 C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration.
  • Page 9 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Speedy mains cable replacement 1. Unscrew screw (1) and remove cable clamp (2). Tools: 2. Pull off cover (3). - Torx T15 3. Slide hook (4) into opening (5).

  • Page 10: Wsg 8-115; 8-125; 12-125P; Wsg 11-125; Wsg 15-125P; Wsg 15-125Ps; Wsg 15-150P; Wsg

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling switch (applies to: WSG 8; WSG 11) 230V variant 120V variant 110V variant 1. Unscrew screw (1) and remove cable clamping piece (2).
  • Page 11 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling switch (applies to: WSG 8-115; WSG 11) 1. Open rubber cover (1). Tools: 2. Open spring clips by turning with a small slotted screwdriver.
  • Page 12 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling switch (applies to: WSG 12; WSG 15) 230V variant 120V variant 110V variant 1. Unscrew screw (1) and remove cable clamping piece (2).
  • Page 13 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling switch (applies to: WSG 12; WSG 15) 1. Lift hook (1) on both sides of switch and pull off electronics (2). Tools: 2.
  • Page 14 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling stator 1. Pry tension spring (1) off carbon brush (2). Tools: 2. Pull out carbon brush (2). - Assembly aid 3. Unscrew the four screws (3).
  • Page 15 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling stator 1. Remove air guide ring (1). 2. Lift up slide switch (2) and remove. 3. Remove two carbon bushes holders (3).
  • Page 16 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling stator 1. Remove stator (1). Tools: - Plastic hammer C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration.
  • Page 17 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling armature 1. Use a plastic hammer to remove armature (1). Tools: 2. Remove bearing bush (2). - Plastic hammer 3. Remove bevel pinion (3).
  • Page 18 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling armature 1. Remove grooved ball bearing (1). Tools: 2. Remove plate (2). - Drawing-off socket cap 6 41 04 150 00 8 3.
  • Page 19 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling gearbox housing 1. Remove air guide ring (1). Tools: 2. Unscrew the four screws (2) and remove spring. - Torx T20 3. Remove spring (3).
  • Page 20 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling gearbox housing 1. Unscrew two screws (1). Tools: 2. Remove lever (2). - Torx T20 3. Remove spiral spring (3). C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration.
  • Page 21 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling gearbox housing 1. Use a slotted screwdriver to remove pushbutton (1). Tools: 2. Remove spiral springs and bolt with sealing ring. - Arbor press 3.
  • Page 22 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 6. Disassembly Disassembling gearbox housing 1. Remove plate (1). Tools: 2. Press out grooved ball bearing (2). - Arbor press - Sleeve 14 mm inner diameter...

  • Page 23: Assembly

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling gearbox housing 1. Press grooved ball bearing (1) into bearing plate. Tools: 2. Press in shaft (2). - Arbor press 3. Insert plate (3).
  • Page 24 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling gearbox housing 1. Insert spiral spring (3). Tools: 2. Place lever (2) on bearing plate and screw down with two screws (3) [2.4 Nm].
  • Page 25 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling gearbox housing 1. Insert spiral springs and bolt with sealing ring. 2. Assemble pushbutton (1). 3. Coat both sides of compensating disc(s) (2) with Loctite 573 and position on gearbox housing.
  • Page 26 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling armature 1. Slide plate (3) onto armature. Tools: 2. Press grooved ball bearing (2) onto armature. - Arbor press 3. Press grooved ball bearing (4) onto armature.
  • Page 27 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling armature 1. Press armature into gearbox housing.  Ensure that plate lies in air guide ring's recess.  When assembled, it must no longer be possible for the armature to be pulled out in an axial direction by hand.
  • Page 28 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling the stator 1. Press stator (1) into motor housing in correct position. Tools:  Use ID number (2) to align stator. - Arbor press...
  • Page 29 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling the stator 1. Slide control rod (1) into motor housing. 2. Assemble slide switch (2). 3. Hook control rod onto slide switch (3).
  • Page 30 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling gearbox head 1. Insert air guide ring (1) in motor housing. Tools: 2. Slide gearbox housing (2) with armature into motor housing (3).
  • Page 31 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling switch and electronics 1. Assemble carbon brushes (1) and connect. Tools: 2. Place springs (2) of carbon brush holder on carbon brush.
  • Page 32 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling switch and electronics (applies to: WSG 8-115; WSG 8-125; WSG 11-125) 230V variant 120V variant 110V variant 1. Slide switch (1) on to motor housing.
  • Page 33 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling switch and electronics (applies to: WSG 8; WSG 11) 110V variant NOTE If tools are fitted with a choke (1), ensure that the choke is positioned between the supply cable's stranded wires.
  • Page 34 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling switch and electronics (applies to: WSG 12; WSG 15) 230V variant 120V variant 110V variant 1. Slide switch (1) on to motor housing.
  • Page 35 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Assembling switch and electronics (applies to: WSG 12; WSG 15) 110V variant NOTE If tools are fitted with a choke (1), ensure that the choke is positioned between the supply cable's stranded wires.
  • Page 36 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Fitting the housing cover 1. Place lower part of cover (1) on upper part of cover. Tools: 2. Fasten lower part of cover with the two screws (2) [1.5 Nm].
  • Page 37 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 7. Assembly Setting gearbox clearance 1. Perform a test run. 2. Check gearbox clearance by turning shaft (1). 3. If there is no gearbox clearance, a second disc must be placed between bearing plate and gearbox housing [see page 25 "Assembling gearbox"].

  • Page 38: Connection Diagram

    WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 38 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 39 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 39 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 40 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 40 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 41 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 41 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 42 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 42 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 43 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 43 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 44 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 44 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 45 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 45 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 46 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 46 of 47 FEIN retains all rights of disposal, such as copying and circulation...
  • Page 47 WSG 8-115; 8-125; 12-125P; WSG 11-125; WSG 15-125P; WSG 15-125PS; WSG 15-150P; WSG 15- 70Inox 8. Connection diagram C-SC_CSSM Version 1.0 2014-12-18 All rights reserved by FEIN, especially in case of industrial rights registration. Page 47 of 47 FEIN retains all rights of disposal, such as copying and circulation...

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