Fein GSZ4-280EL Instruction manual

GSZ4-280EL; GSZ4-90EL
Technical data
C-SC_CSSM
Version 1.0
2015-05-04
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 1
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

GSZ 280EL; GSZ 90EL
Notes and requirements
C-SC_CSSM
Version 1.0
2015-05-04
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 1
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.

GSZ4-90EL
Lubricants and auxiliary substances required
C-SC_CSSM
Version 1.0
2015-05-04
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 1
Lubricants
Grease 0 40 101 0100 4 15 g Housing

GSZ 280EL; GSZ 90EL
Troubleshooting
C-SC_CSSM
Version 1.0
2015-05-04
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 1
Not yet available.

GSZ4-280EL; GSZ4-90EL
Removal
C-SC_CSSM Version 1.0 2015-05-21
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 5
Removing the motor housing
1. Unscrew the three screws (1).
2. Remove the cover (2).
3. Lift up the tension spring from the carbon brush (3) [on both sides].
Tools:
- Torx T15
- Assembly aid
3
2
1

GSZ4-280EL; GSZ4-90EL
Removal
C-SC_CSSM Version 1.0 2015-05-21
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 5
Removing the motor housing
1. Unscrew the four screws (1).
2. Pull the collar bearing (2) with intermediate gearbox out of the housing.
Tools:
- Torx T15
2
1

GSZ4-280EL; GSZ4-90EL
Removal
C-SC_CSSM Version 1.0 2015-05-21
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 5
Removing the electronics
1. Unscrew the screw (1).
2. Remove the cable clamping piece (2).
3. Take out the electronics (3).
4. Loosen the two screws (4) and remove the two cables.
5. Pull off the cables (5).
6. Pull the cables (6) off the connector [on both sides].
7. Unscrew the screw (7) on the brush holder [on both sides].
8. Remove the brush holder (8) and the connector [on both sides].
Tools:
- Torx T15
- PH1 cross-tip
screwdriver
2
1
5
4
8
7
6
3

GSZ4-280EL; GSZ4-90EL
Removal
C-SC_CSSM Version 1.0 2015-05-21
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 5
Removing the stator
1. Remove the air guide ring (1).
2. Unscrew the two screws (2).
3. Remove the stator (3) from the housing.
Tools:
- Torx T15
- Plastic hammer
1
3
2

GSZ4-280EL; GSZ4-90EL
Removal
C-SC_CSSM Version 1.0 2015-05-21
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 5
Removing the slide switch
1. Remove the contact spring (1).
2. Remove the slide switch (2).
3. Remove the control rod (3).
1
2
3

GSZ4-90EL
Removal
C-SC_CSSM
Version 1.0
2015-05-21
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 6
Removing the intermediate gearbox
1. Pull the collar bearing (1) off the intermediate gearbox.
2. Remove the protective grille (2).
3. Press the armature out of the intermediate gearbox (3).
4. Remove the sealing ring (4).
The sealing ring is destroyed during removal and must be replaced.
Tools:
- Arbor press
- Sleeve
55 mm inner diameter
65 mm outer diameter
4
3
2
1

GSZ4-90EL
Removal
C-SC_CSSM
Version 1.0
2015-05-21
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 6
Removing the intermediate gearbox
1. Remove the circlip (1).
2. Press out the grooved ball bearing (2).
3. Remove the sealing ring (3).
The sealing ring is destroyed during removal and must be replaced.
Tools:
- Circlip pliers
- Punch 12 mm
1
3
2

GSZ4-90EL
Removal
C-SC_CSSM
Version 1.0
2015-05-21
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 6
Removing the armature
1. Pull the grooved ball bearing (1) off the armature. Tools:
- Drawing-off socket cap
- Chuck cone 19 mm
1

GSZ4-90EL
Removal
C-SC_CSSM
Version 1.0
2015-05-21
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 6
Removing the collar bearing
1. Pull off the protective hose (1).
2. Unscrew the sleeve (2) [left-handed thread].
3. Unscrew the screw (3).
4. Remove the disc (4).
5. Remove the gear-wheel (5).
6. Press the shaft (6) out of the collar bearing.
Tools:
- Open-ended spanner
30 mm
- Socket head wrench
3 mm
- Open-ended spanner
17 mm
- Arbor press
- Punch 5 mm
3
5
2
1
6
4

GSZ4-90EL
Removal
C-SC_CSSM
Version 1.0
2015-05-21
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 6
Removing the collar bearing
1. Remove the grooved ball bearing (1).
2. Remove the disc (2).
Tools:
- Inner puller
- Slide hammer
1
2

GSZ4-90EL
Removal
C-SC_CSSM
Version 1.0
2015-05-21
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 6
Removing the shaft
1. Remove the circlip (1).
2. Press off the grooved ball bearing (2).
3. Remove the disc (3).
4. Remove the felt ring (4).
5. Remove the disc (5).
Tools:
- Arbor press
- Sleeve
21 mm inner diameter
26 mm outer diameter
- Circlip pliers
1
2
4
3
5

GSZ4-90EL
Fitting
C-SC_CSSM
Version 1.0
2015-05-21
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 7
Fitting the shaft
1. Slide the disc (1) onto the shaft.
2. Soak the felt ring (2) in oil.
3. Slide the felt ring (2) onto the shaft.
4. Slide the disc (3) onto the shaft.
5. Press the grooved ball bearing (4) onto the shaft.
6. Fit the circlip (5).
Tools:
- Arbor press
- Sleeve
11 mm inner diameter
26 mm outer diameter
- Circlip pliers
2
3
1
5
4

GSZ4-90EL
Fitting
C-SC_CSSM
Version 1.0
2015-05-21
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 7
Fitting the collar bearing
1. Press the shaft (1) into the collar bearing.
2. Insert the disc (2).
3. Press the grooved ball bearing (3) into the collar bearing.
Tools:
- Arbor press
- Sleeve
9 mm inner diameter
21 mm outer diameter
1
2
3

GSZ4-90EL
Fitting
C-SC_CSSM
Version 1.0
2015-05-21
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 7
Fitting the collar bearing
1. Attach the gear-wheel (1).
2. Fit the disc and screw in the cylinder head screw (2) [1.2+0.2Nm].
3. Screw down the sleeve (3) [left-handed thread] [12+1.0Nm].
4. Slide the protective hose (4) onto the collar bearing.
5. Fill the collar bearing with 15 g of grease.
Tools:
- Socket head wrench
3 mm
- Open-ended spanner
17 mm
- Open-ended spanner
30 mm
1
2
4
3

GSZ4-90EL
Fitting
C-SC_CSSM
Version 1.0
2015-05-21
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 7
Fitting the armature
1. Press the grooved ball bearing (1) onto the armature. Tools:
- Arbor press
- Sleeve
8 mm inner diameter
19 mm outer diameter
1