Fein RSG 18a Setup guide

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
Repair instructions
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RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
Contents
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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

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
1. Models described
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These repair instructions describe how to repair the following models:
Model Order number
RSG 18a 7 360 09 .. .. .
RSG 18b 7 360 10 .. .. .
RSG EX 18a 7 360 06 .. .. .
RSG EX 18b 7 360 07 .. .. .

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
2. Technical data
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Technical data
All the technical data can be found in the operating instructions for the model.
Test 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

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
3. Notes and requirements
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Please note
The repair instructions refer to all mounted parts outside of the gearbox. A faulty gearbox is replaced by a replacement gearbox. The
order no. for the relevant replacement gearbox can be found in the spare parts catalogue.
Faulty gearboxes may be repaired only by C. & E. Fein GmbH (Germany) because such repairs require an extensive range of special
tools and special expertise.
Contact the customer service in the relevant country if you have any questions.
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.

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
4. Tools required
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Standard tools Special tools
Outer puller Special tool for basic setting 6 41 22 130 02 0
Arbor press
Punch 3 mm; 7 mm
Open-ended spanner/Ring
wrench 13 mm; 17 mm; 18 mm; 19 mm; 46 mm
Sleeve •25 mm inner diameter
33 mm outer diameter
•33 mm inner diameter
38 mm outer diameter
•33 mm inner diameter
46 mm outer diameter
•23 mm inner diameter
31 mm outer diameter
•15 mm inner diameter
28 mm outer diameter
Socket head wrench 3 mm; 4 mm; 5 mm; 6 mm
Cross-tip screwdriver PH2
Plastic hammer
Blade

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
4. Tools required
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Standard tools
2x nuts M8
Slotted screwdriver
Hammer
¼" hex insert 19 mm
Circlip pliers
Long-nosed pliers
Socket wrench 7 mm
Torx T20

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
5. Lubricants and auxiliary substances required
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Lubricants
Grease 0 40 101 0100 4
Gearbox oil [-15°C to +50°C] 3 21 320 0901 3 Gearbox
Gearbox oil [-40°C to +5°C] 3 21 320 0902 9 Gearbox
Gearbox oil [>+40°C] On request Gearbox
Auxiliary substances
Loctite 242
Loctite 574
Epple 28

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the delivery fixture
1. Loosen the nut (1) [on both sides].
2. Turn the delivery fixture (2) clockwise.
3. Unscrew the cylinder head screw (3).
4. Remove the bolt (4).
Tools:
- Open-ended spanner
19 mm
- ¼" hex insert
19 mm
- Socket head wrench
3 mm
- Punch 7 mm
1
2
3
4

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the clamping unit
1. Turn the clamping unit (1) clockwise.
2. Remove the circlip (2).
3. Remove the bolt (3).
Tools:
- Circlip pliers
- Punch 7 mm
- Hammer
1
2
3

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the side plate [on both sides]
1. Unscrew the three screws (1).
2. Unscrew the hexagon socket screw (2) and remove the disc. Tools:
- Open-ended spanner
18 mm; 19 mm
1
2

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the shaft
1. Pull off the gear-wheel (1).
2. Remove the hex nut (2).
3. Remove the disc (3).
Tools:
- Outer puller
- Open-ended spanner
46 mm
- Ring wrench 19 mm
3
2
1

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the shaft
1. Remove the disc (1).
2. Remove the sleeve (2).
3. Remove the disc (3).
2
3
1

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the shaft
1. Remove the circlip (1).
2. Remove the disc (2).
3. Remove the shaft (3).
Tools:
- Circlip pliers
1
2
3

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the gear-wheel
1. Press out the grooved ball bearing (1). Tools:
- Arbor press
- Sleeve
25 mm inner diameter
33 mm outer diameter
1

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the side plate
1. Pull off the hook and loop wheel (1).
2. Prop up the pipe milling cutter (2).
3. Remove the circlip (3).
4. Unscrew the nut (4).
Tools:
- Outer puller
- Circlip pliers
- Open-ended spanner
19 mm
1
3
4
2

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the side plate
1. Unscrew the four cylinder head screws (1).
2. Unscrew the four cylinder head screws (2).
3. Prop up the pipe milling cutter (3).
Tools:
- Socket head wrench
4 mm
1
2
3

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the side plate
1. Remove the side plate (1).
2. Remove the delivery fixture (2).
3. Unscrew the thread bolt (3).
The screw is locked with Loctite 242.
Tools:
- Plastic hammer
- Open-ended
spanner/Ring wrench
13 mm
3
1
2

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the crossbar
1. Unscrew the four screws (1).
2. Remove the crossbar (2).
3. Remove the bolt (3).
4. Remove the hinge (4).
Tools:
- Socket head wrench
4 mm
2
3
4
1

RSG 18a; RSG 18b; RSGEx 18a; RSGEx 18b
6. Removal
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Removing the crossbar
1. Remove the circlip (1) [on both sides].
2. Remove the bolt with sleeve (2).
3. Remove the clamping sleeve (3).
4. Remove the hexagon socket screw (4).
5. Remove the gear-wheel (5).
Tools:
- Circlip pliers
- Ring wrench 17 mm
5
1
2
3
4