Fein BOZ 32-4M Setup guide

Rotary Drills
Repair instructions
Valid for:
BOZ 32-4M

Rotary Drills
Contents
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Contents
Contents...................................................................................................................................................2
1Models described..............................................................................................................................4
2Technical data...................................................................................................................................5
3Notes and requirements....................................................................................................................6
4Symbols used....................................................................................................................................7
5Safety instructions.............................................................................................................................8
5.1 Structure ....................................................................................................................................8
5.2 Danger classification..................................................................................................................8
5.3 Information.................................................................................................................................9
6Tools, lubricants and auxiliary substances required.........................................................................10
6.1 Standard tool............................................................................................................................10
6.2 Special tool...............................................................................................................................10
6.3 Lubricants and auxiliary substances.........................................................................................10
7Test and diagnostics options...........................................................................................................11
8Removal..........................................................................................................................................12
8.1 Removing the additional handle ...............................................................................................12
8.2 Removing the carbon brushes..................................................................................................13
8.3 Removing the motor housing....................................................................................................14
8.3.1 Removing the gearbox housing.........................................................................................14
8.3.2 Removing the electronics..................................................................................................15
8.3.3 Removing the handle ........................................................................................................16
8.3.4 Removing the electronic components................................................................................17
8.3.5 Removing the stator..........................................................................................................18
8.3.6 Removing the intermediate gear box.................................................................................19
8.3.7 Removing the intermediate gear box.................................................................................20
8.3.8 Removing the armature.....................................................................................................21
8.3.9 Removing the network cable.............................................................................................22
8.4 Removing the gearbox housing................................................................................................23
8.4.1 Removing the gearbox parts .............................................................................................23
8.4.2 Removing the switch pushbutton.......................................................................................24
8.4.3 Removing the clutch and shafts.........................................................................................25
9Fitting..............................................................................................................................................28

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9.1 Fitting the gearbox housing......................................................................................................28
9.1.1 Fitting the clutch and shafts...............................................................................................28
9.1.2 Fitting the switch pushbutton.............................................................................................31
9.1.3 Fitting the gearbox parts....................................................................................................32
9.2 Fitting the motor housing..........................................................................................................33
9.2.1 Fitting the armature...........................................................................................................33
9.2.2 Fitting the intermediate gearbox........................................................................................34
9.2.3 Positioning the intermediate gearbox ................................................................................36
9.2.4 Fitting the stator ................................................................................................................37
9.2.5 Fitting the electronic components......................................................................................39
9.2.6 Fitting the network cable ...................................................................................................40
9.2.7 Fitting the handle...............................................................................................................41
9.2.8 Fitting the electronics ........................................................................................................42
9.2.9 Positioning the gearbox housing........................................................................................43
9.3 Fitting the carbon brushes........................................................................................................44
9.4 Fitting the additional handle......................................................................................................46
10 Inspection following repairs .............................................................................................................47

Rotary Drills
Models described
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1 Models described
These repair instructions describe how to repair the following models:
Model
Material number
BOZ 32-4M
7 202 51 .. .. .

Rotary Drills
Technical data
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2 Technical data
Technical data
The complete technical data can be found in the operating instructions for the model.
Troubleshooting
Troubleshooting for all devices can be found in the FEIN electronic information system.
Specific test specifications and measured values
Up-to-date test data for all devices can be found in the FEIN electronic information system.
Special tools, lubricants and auxiliary substances
The special tools catalogue and the lubricants and container sizes available from FEIN can be found in the
FEIN electronic information system.
Lists of spare parts
Lists of spare parts and exploded views are available online in our spare parts catalogue, which can be
accessed via the FEIN website.
Connection diagram
Lists of spare parts and exploded views can be found in the FEIN electronic information system.

Rotary Drills
Notes and requirements
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3 Notes and requirements
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.
Outside Germany, the regulations applicable in the relevant country must be observed.
The provisions set out in DIN VDE 0701-0702 must be observed after repairs.
The relevant accident prevention regulations are to be observed during commissioning.
The German Equipment and Product Safety Act [ProdSG] applies for correct use.
Disclaimer
The content of this documentation has been carefully reviewed and produced to the best of our
knowledge. C. & E. Fein GmbH assumes no responsibility for the completeness, relevance, quality
or correctness of the information provided.
Liability claims against C. & E. Fein GmbH that relate to material or immaterial damage caused by
the use or failure to use the information provided or by the use of incorrect or incomplete
information are excluded. Claims relating to acts committed intentionally or through gross
negligence are categorically excluded.
INFORMATION
Read the operating instructions for the product before
carrying out the repair work.

Rotary Drills
Symbols used
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4 Symbols used
Refers to measures for avoiding the risk of injuries.
Refers to information or instructions that should be followed. Non-observance can result in
damage or malfunctions.
Read the operating instructions.
Indicates notes that provide information or instructions that may provide a better understanding
and contribute to the more effective use of the product.
Part of the navigation interface.

Rotary Drills
Safety instructions
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5 Safety instructions
5.1 Structure
5.2 Danger classification
Warning
This warning refers to a dangerous situation. If the situation is not avoided, this may result in severe injuries
or death.
Caution
This warning refers to a potentially dangerous situation. If the situation is not avoided, this may result in
slight or minor injuries. This may also be used as a warning against material damage.
Please note
Indicates a potentially harmful situation. If this situation is not avoided, the product or an object in its
environment could be damaged.
SIGNAL WORD FOR THE DANGER
CLASSIFICATION.
Type and source of the danger.
Possible consequences.
Measure that must be taken in order to avoid this danger.
WARNING!
Type and source of the danger.
Possible consequences.
Measure that must be taken in order to avoid this danger.
CAUTION!
Type and source of the danger.
Possible consequences.
Measure that must be taken in order to avoid this danger.
PLEASE NOTE!
Type and source of the danger.
Damage to the product or its environment.
Measure that must be taken in order to avoid this danger.

Rotary Drills
Safety instructions
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5.3 Information
Indicates notes that provide information or instructions that may provide a better understanding and
contribute to the more effective use of the product.
INFORMATION
Tip

Rotary Drills
Tools, lubricants and auxiliary substances required
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6 Tools, lubricants and auxiliary substances required
6.1 Standard tool
Cross-tip screwdriver
PH2
Torx
T20
Slotted screwdriver
Long-nosed pliers
Socket head wrench set
Soldering station
Circlip pliers
Plastic hammer
Arbor press
Slide hammer
Sleeve
54 mm inner diameter, 64 mm inner diameter;
28 mm outer diameter, 105 mm height;
31 mm inner diameter, 37 mm outer diameter, 105
mm height;
54 mm outer diameter;
26 mm inner diameter; 28 mm outer diameter;
11 mm inner diameter, 18 mm inner diameter
Support
26 mm diameter
6.2 Special tool
Assembly aid
6 41 22 121 01 0
Drawing-off socket cap
6 41 04 150 00 0
Chuck cone
26 mm
diameter
6 41 07 026 00 0
6.3 Lubricants and auxiliary substances
Transmission
grease
3 13 49 079 00 0
270 g
Gearbox
Loctite 648
0 90 00 600 60 7
Armature

Rotary Drills
Test and diagnostics options
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7 Test and diagnostics options
Not currently available.

Rotary Drills
Removal
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8 Removal
8.1 Removing the additional handle
1. Unscrew the additional handle (1).
1

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Removal
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8.2 Removing the carbon brushes
Tools:
- PH2 cross-tip screwdriver
- Slotted screwdriver
1. Unscrew the four sheet metal screws (1).
2. Remove the cover (2).
3. Loosen the screw (3).
4. Disconnect the cable (4).
5. Lift the spring (5) to one side.
6. Remove the carbon brush (6).
7. Repeat steps 3 to 6 on the opposite side of the machine.
1
2
3
5
4
6

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Removal
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8.3 Removing the motor housing
8.3.1 Removing the gearbox housing
Steps that must be completed:
- Removing the carbon brushes
Tools:
- PH2 cross-tip screwdriver
1. Unscrew the two screws (1).
2. Repeat step 1 on the opposite side of the machine.
3. Remove the gearbox housing (2).
1
2

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Removal
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8.3.2 Removing the electronics
Steps that must be completed:
- Removing the carbon brushes
Tools:
- Long-nosed pliers
- PH2 cross-tip screwdriver
- Torx T20
1. Remove all plug connections from the electronics.
2. Unscrew the two screws (1).
3. Remove the electronics (2).
4. Unscrew the screw (3).
5. Remove the cable (4).
6. Unscrew the two screws (5).
7. Remove the brush holder (6).
8. Repeat steps 4 to 7 on the opposite side of the machine.
1
2
5
4
6
3

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Removal
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8.3.3 Removing the handle
Tools:
- PH2 cross-tip screwdriver
1. Unscrew the two screws (1).
2. Repeat step 1 on the opposite side of the machine.
3. Unscrew the screw (2).
4. Remove the handle half shell (3).
1
2
3

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Removal
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8.3.4 Removing the electronic components
Steps that must be completed:
- Removing the handle
Tools:
- Slotted screwdriver
1. Remove the two pressure pieces (1).
2. Remove all electronic components from the handle half
shell (2).
3. Unscrew the four screws (3).
4. Remove the capacitor (4).
5. Remove all of the cables.
6. Unscrew all six screws from the toggle switch (5).
7. Remove all of the cables from the toggle switch (5).
8. Remove the bolt (6).
1
2
3
4
5
6

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Removal
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8.3.5 Removing the stator
Steps that must be completed:
- Removing the carbon brushes
- Removing the electronics
Tools:
- PH2 cross-tip screwdriver
- Soldering station
1. Remove the air guide ring (1).
2. Remove the pressure piece (2).
3. Remove the stator (3).
4. Remove the connecting cable (4) from the motor housing.
5. Unsolder the cables (5).
1
3
2
4
5

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Removal
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8.3.6 Removing the intermediate gear box
Steps that must be completed:
- Removing the carbon brushes
- Removing the gearbox housing
Tools:
- Plastic hammer
1. Remove the gearbox housing (1) from the intermediate
gearbox (2).
2
1

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Removal
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8.3.7 Removing the intermediate gear box
Steps that must be completed:
- Removing the carbon brushes
- Removing the gearbox housing
- Removing the intermediate gear box
Tools:
- Circlip pliers
- Arbor press
1. Remove the circlip (1).
2. Press the armature (2) out of the intermediate gearbox
(3).
3. Remove the circlip (4).
4. Press out the grooved ball bearing (5).
INFORMATION
The grooved ball bearing (5) is damaged during removal and
must be replaced.
1
2
3
5
4