Fein BOS 16 Setup guide

BOS 16; BOS 16-2
Repair instructions
C-SC_CSSM
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13.11.2013
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BOS 16; BOS 16-2
Contents
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13.11.2013
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1. Models described
2. Technical data
3. Notes and requirements
4. Tools required
5. Lubricants and auxiliary substances required
6. Disassembly
7. Assembly
8. Troubleshooting
9. Connection diagram

BOS 16; BOS 16-2
1. Models described
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These instructions describe how to repair the following models:
Model Order number
BOS 16 7 205 47 00 23 0
BOS 16-2 7 205 49 00 23 0

BOS 16; BOS 16-2
2. Technical data
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Technical data
The complete 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

BOS 16; BOS 16-2
3. Notes and requirements
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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 employers' liability insurance associations are to be observed when
commissioning.
The German Equipment and Product Safety Act applies for correct use.
Outside Germany, the regulations applicable in the relevant country must be observed!

BOS 16; BOS 16-2
4. Tools required
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Standard tools Special tools
Torx T15; T20 Drawing-off socket cap 6 41 04 150 00 8
Open-ended spanner, size 17 (sanded) 6 29 03 002 00 9 Assembly aid 6 41 22 121 01 0
Socket wrench, 10 mm Chuck cone, 19 mm 6 41 07 019 00 7
Plastic hammer 26 mm chuck cone 6 41 07 026 00 0
Arbor press
Long-nosed pliers
2x slotted screwdriver
Inner puller 10 mm
Slide hammer
Circlip pliers
Sleeve 7 mm inner diameter
Sleeve 17 mm inner diameter
Sleeve 20 mm inner diameter
24 mm outer diameter
Sleeve 22 mm inner diameter
Sleeve 21 mm inner diameter
37 mm outer diameter

BOS 16; BOS 16-2
4. Tools required
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Standard tools
Sleeve 25 mm inner diameter
35 mm outer diameter
Sleeve 38 mm inner diameter
43 mm outer diameter
Ball bearing support 8 mm inner diameter
Ball bearing support 11 mm inner diameter

BOS 16; BOS 16-2
5. Lubricants and auxiliary substances required
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Lubricants
Grease 0 40 11 301 00 5 30 g Gearbox

BOS 16; BOS 16-2
6. Disassembly
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Disassembling handle
1. Unscrew handle (1).
2. Pull off sleeve (2).
3. Remove screw (3).
4. Pull off locking ring (4).
1
2
3
4

BOS 16; BOS 16-2
6. Disassembly
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FEIN retains all rights of disposal, such as copying and circulation
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Disassembling quick-clamping drill chuck
1. Unscrew quick-clamping drill chuck (1). Tools:
- Socket wrench, 10 mm
- Open-ended spanner,
size 17 (sanded)
1

BOS 16; BOS 16-2
6. Disassembly
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13.11.2013
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FEIN retains all rights of disposal, such as copying and circulation
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Disassembling carbon brushes
1. Unscrew screw (1) and remove cover (2).
2. Lift spring (3) to one side.
3. Pull out carbon brush (4).
Tools:
- Torx T15
- Assembly aid
1
4
3
2

BOS 16; BOS 16-2
6. Disassembly
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13.11.2013
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FEIN retains all rights of disposal, such as copying and circulation
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Disassembling carbon brushes
1. Pull out cable (1) of electronics.
2. Pull out plug contact (2) of carbon brush and remove carbon brush. Tools:
- Long-nosed pliers
1
2

BOS 16; BOS 16-2
6. Disassembly
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Disassembling gearbox housing
1. Loosen four screws (1).
2. Pull off complete gearbox housing (2). Tools:
- Torx T20
1
2

BOS 16; BOS 16-2
6. Disassembly
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13.11.2013
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Disassembling handle
3. Unscrew the five screws (1).
4. Remove handle half-shell (2).
5. Loosen screw (3) and remove cable clamping piece (4).
6. Remove handle half-shell (5).
Tools:
- Torx T20, T15
1
2
3
4
5

BOS 16; BOS 16-2
6. Disassembly
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Disassembling the electronics
1. Prise out electronics (1).
2. Pull blue cable (2) out of switch.
3. Pull black cable (3) out of switch.
Tools:
- 2x slotted screwdriver
1
2
3

BOS 16; BOS 16-2
6. Disassembly
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Disassembling motor housing
1. Remove the two screws (1) and take off carbon brush holder.
2. Take out blue cable (2).
3. Unscrew the two screws (3) and remove air guide ring (4).
4. Remove stator from motor housing.
Tools:
- Torx T15, T20
- Plastic hammer
1
2
3
4

BOS 16; BOS 16-2
6. Disassembly
C-SC_CSSM
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13.11.2013
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FEIN retains all rights of disposal, such as copying and circulation
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Disassembling gearbox housing
1. Remove armature (1) from gearbox housing (2).
2. Disconnect gearbox housing from intermediate bearing.
3. Remove seal (3).
4. Pull out the two dowels (4).
5. Remove the three grooved ball bearings (5).
Tools:
- Plastic hammer
- Inner puller
- Slide hammer
4
4
3
1
2
5

BOS 16; BOS 16-2
6. Disassembly
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13.11.2013
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FEIN retains all rights of disposal, such as copying and circulation
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Disassembling armature
1. Pull off grooved ball bearing (2) together with sealing ring (1) from armature.
2. Remove plate (3).
3. Pull off ring magnet (6) by hand.
4. Prise off sleeve (5) with two slotted screwdrivers.
5. Pull off grooved ball bearing (4).
Tools:
- Drawing-off socket cap
- Chuck cone, 19 mm
- Chuck cone, 26 mm
- 2x slotted screwdriver
2
1
3
4
5
6

BOS 16; BOS 16-2
6. Disassembly
C-SC_CSSM
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13.11.2013
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FEIN retains all rights of disposal, such as copying and circulation
.
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Disassembling gearbox housing (only applies to BOS 16)
1. Remove circlip (1).
2. Remove clutch (2).
3. Take all gear-wheels out of gearbox housing.
4. Remove the two grooved ball bearings (3).
5. Remove circlip (4).
6. Press shaft (5) with grooved ball bearing out of gearbox housing.
Tools:
- Circlip pliers
- Inner puller
- Slide hammer
- Arbor press
- Sleeve
38 mm inner diameter
43 mm outer diameter
1
4
5
3
2

BOS 16; BOS 16-2
6. Disassembly
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13.11.2013
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FEIN retains all rights of disposal, such as copying and circulation
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Disassembling shaft (only applies to BOS 16)
1. Remove circlip (1).
2. Press grooved ball bearing (2) off shaft (3). Tools:
- Circlip pliers
- Arbor press
- Sleeve
24 mm inner diameter
1
3
2