Fein WSG 7-100 Setup guide

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
Repair instructions
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 1of 45

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
Contents
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 2of 45
1. Models described
2. Technical data
3. Notes and requirements
4. Tools required
5. Lubricants and auxiliary substances required
6. Removal
7. Fitting
8. Connection diagram

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
1. Models described
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 3of 45
These repair instructions describe how to repair the following models:
Model Order number
WSG 7-100 7 221 96 .. .. .
WSG 7-115 7 221 97 .. .. .
WSG 7-115 (A) 7 221 98 .. .. .
WSG 7 115 PT 7 222 31 .. .. .
WSG 7-125 7 222 65 .. .. .

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
2. Technical data
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 4of 45
Technical data
All the technical data can be found in the operating instructions for the model.
Tests
Up-to-date test data and test instructions after repair can be found on the FEIN Extranet (Customer Service → Repair Guides).
Lubricants / Auxiliary substances
The lubricants or auxiliary substances and their 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

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
3. Notes and requirements
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 5of 45
Please note
These instructions are only intended for persons with suitable technical training. It is assumed that the reader has mechanical and
electrical training.
Only use original FEIN spare parts!
Provisions
Please note that power tools may only be repaired, maintained and checked by a trained electrician, as improper repair can result in
serious risks to the user.
The provisions set out in DIN VDE 0701-0702 should be observed after repairs.
The relevant accident prevention regulations of the employer’s liability insurance associations are to be observed when
commissioning.
The German Equipment and Product Safety Act [ProdSG] applies for correct use.
Outside Germany, the regulations applicable in the relevant country must be observed!

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
4. Tools required
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 6of 45
Standard tools Special tools
PH2 cross-tip screwdriver Drawing-off socket cap 6 41 04 150 00 8
Flat-nose pliers Chuck cone 19 mm 6 41 07 019 00 7
Slotted screwdriver Assembly aid 6 41 22 121 01 0
Plastic hammer Pressure piece 6 41 22 128 00 0
Hot air gun
Socket wrench
Socket wrench insert 10 mm
Punch Dia. 9 mm; dia. 17 mm
2x flat material 2 mm
Arbor press
Puller 6-10 mm
Sleeves
•55 mm inner diameter
65 mm outer diameter
•45 mm inner diameter
62 mm outer diameter
•32 mm inner diameter
40 mm outer diameter

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
4. Tools required
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 7of 45
Standard tools
Sleeves
•22 mm inner diameter
33 mm outer diameter
•17 mm inner diameter
33 mm outer diameter
•9 mm inner diameter
22 mm outer diameter
•12 mm inner diameter
22 mm outer diameter
•16 mm inner diameter
30 mm outer diameter
Bolt
Dia. 18 mm

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
5. Lubricants and auxiliary substances required
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 8of 45
Lubricants
Grease 0 40 12 901 00 0 10 g Gearbox housing

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 9of 45
Removing the cover
1. Unscrew the screw (1).
2. Pull off the cover.
Tools:
- PH2 cross-tip
screwdriver
1

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 10 of 45
Removing the cover [applies to: WSG 7-115 PT]
1. Unscrew the two screws (1).
2. Remove the cover (2).
3. Remove the control rod (3).
4. Remove the cover (4).
Tools:
- PH2 cross-tip
screwdriver
1
2
3
4

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 11 of 45
Removing the cable with plug
1. Unscrew the screw (1).
2. Remove the cable clamping piece (2).
3. Prise out the control rod (3).
4. Pull out the capacitor (4).
5. Slide the lock (5) to the side.
6. Pull out and turn the switch (6) on the cable with plug.
7. Unscrew the screws (7).
8. Remove the cable with plug (8).
Tools:
- Flat-nose pliers
- PH2 cross-tip
screwdriver
- Slotted screwdriver
2
3
6
1
8
7
4
5

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 12 of 45
Removing the cable with plug [applies to: WSG 7-115 PT]
1. Unscrew the screw (1).
2. Remove the cable clamping piece (2).
3. Unscrew the two screws (3).
4. Remove the cable with plug (4).
Tools:
- PH2 cross-tip
screwdriver
1
4
3
2

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 13 of 45
Removing the switch
1. Pull off the four female push-on connectors (1). Tools:
- Flat-nose pliers
- Slotted screwdriver
1
WSG 7-100; WSG 7-115
WSG 7-115 (A)
1
WSG 7-115 (A)
1
WSG 7-125
1

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 14 of 45
Removing the switch [applies to: WSG 7-115 PT]
1. Slide the lock (1) to the side.
2. Remove the switch (2).
3. Pull off the four female push-on connectors (3).
4. Pull out the capacitor (4).
Tools:
- Flat-nose pliers
1
3
2
4

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 15 of 45
Removing the brush holder
1. Pull off the female push-on connector (1) of the carbon brush.
2. Lift up the tension spring (2) from the carbon brush (3).
3. Pull the carbon brush (3) off the brush holder.
4. Pull off the female push-on connector (4).
5. Unscrew the screw (5).
6. Pull out the brush holder (6) with the flat-nose pliers.
Tools:
- Flat-nose pliers
- Assembly aid
- PH2 cross-tip
screwdriver
- Slotted screwdriver
2
4
1
6
5
3

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 16 of 45
Removing the armature
1. Unscrew the screws (1).
2. Pull the gearbox housing (2) with armature out of the motor housing.
Tools:
- PH2 cross-tip
screwdriver
2
1

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 17 of 45
Removing the stator
1. Pull the air guide ring (1) off the motor housing.
2. Remove the stator (2).
Tools:
- Plastic hammer
1
2

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 18 of 45
Removing the slide switch
1. Remove the slide switch (1) from the control rod.
2. Pull the control rod (2) out of the motor housing.
1
2

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 19 of 45
Removing the bevel gear
1. Unscrew the screws (1).
2. Pull the bevel gear (2) off the gearbox housing.
3. Remove the sealing ring (3).
4. Completely remove the grease (4).
Tools:
- PH2 cross-tip
screwdriver
1
2
4
3

WSG 7-100; WSG 7-115; WSG 7-115 (A); WSG 7-115 PT; WSG 7-125
6. Removal
C-SC_CSSM
Version 1.0
2019-07-05
All rights reserved by FEIN, especially in case of property rights applications.
FEIN retains all rights of disposal, such as copying and circulation.
Page 20 of 45
Removing the bevel gear
1. Unscrew the screws (1) and (2).
Replace the screw (1) during fitting.
2. Pull the armature (3) off the gearbox housing.
Tools:
- PH2 cross-tip
screwdriver
3
1
2