Fein KBU 110-4 M Setup guide

Metal core drilling
Repair instructions
Applies to:
KBU 110-4 M; JMU 404 M

Metal core drilling
Contents
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Contents
1Models described..............................................................................................................................5
2Technical data...................................................................................................................................6
3Notes and requirements....................................................................................................................7
4Symbols used....................................................................................................................................8
5Safety instructions.............................................................................................................................9
5.1 Structure ....................................................................................................................................9
5.2 Danger classification..................................................................................................................9
5.3 Information...............................................................................................................................10
6Tools, lubricants and auxiliary substances required.........................................................................11
6.1 Standard tools..........................................................................................................................11
6.2 Special tools.............................................................................................................................11
6.3 Lubricants and auxiliary substances required...........................................................................12
7Test and diagnosis options..............................................................................................................13
8Disassembly....................................................................................................................................14
8.1 Disassembling the drill jig.........................................................................................................14
8.1.1 Removing the container ....................................................................................................14
8.1.2 Removing the switches .....................................................................................................15
8.1.3 Removing the electronics..................................................................................................16
8.1.4 Removing the network cable.............................................................................................17
8.1.5 Removing the magnetic foot..............................................................................................18
8.1.6 Removing the protective hose...........................................................................................19
8.1.7 Removing the motor..........................................................................................................20
8.1.8 Removing the spider .........................................................................................................21
8.1.9 Removing the guide ..........................................................................................................23
8.1.10 Removing the sealing ring.................................................................................................26
8.2 Disassembling the motor housing.............................................................................................27
8.2.1 Removing the carbon brushes...........................................................................................27
8.2.2 Removing the bolt .............................................................................................................28
8.2.3 Removing the intermediate gearbox..................................................................................29
8.2.4 Disassembling the intermediate gearbox...........................................................................30
8.2.5 Disassembling the armature..............................................................................................31
8.2.6 Removing the stator..........................................................................................................32
8.3 Disassembling the gearbox housing.........................................................................................33

Metal core drilling
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8.3.1 Removing the lever ...........................................................................................................33
8.3.2 Disassembling the lever ....................................................................................................35
8.3.3 Removing the gearbox parts .............................................................................................36
8.3.4 Removing the shaft ...........................................................................................................37
8.3.5 Disassembling the shaft ....................................................................................................39
8.3.6 Removing the grooved ball bearings .................................................................................40
8.3.7 Disassembling the clutch and shafts .................................................................................41
8.3.8 Removing the sealing rings...............................................................................................43
8.3.9 Removing the hose socket................................................................................................44
9Assembly.........................................................................................................................................45
9.1 Assembling the gearbox housing..............................................................................................45
9.1.1 Fitting the hose socket ......................................................................................................45
9.1.2 Fitting the sealing rings .....................................................................................................46
9.1.3 Assembling the clutch and shafts......................................................................................47
9.1.4 Fitting grooved ball bearings in the gearbox housing.........................................................49
9.1.5 Assembling the shaft.........................................................................................................50
9.1.6 Fitting the gearbox parts....................................................................................................52
9.1.7 Assembling the lever.........................................................................................................53
9.1.8 Positioning the lever..........................................................................................................54
9.2 Assembling the motor housing .................................................................................................55
9.2.1 Fitting the stator ................................................................................................................55
9.2.2 Fitting the armature...........................................................................................................56
9.2.3 Fitting the intermediate gearbox........................................................................................57
9.2.4 Positioning the intermediate gearbox ................................................................................58
9.2.5 Assembling the bolt...........................................................................................................59
9.2.6 Fitting the carbon brushes.................................................................................................60
9.3 Assembling the drill jig..............................................................................................................61
9.3.1 Fitting the sealing ring.......................................................................................................61
9.3.2 Fitting the guide.................................................................................................................62
9.3.3 Fitting the spider................................................................................................................65
9.3.4 Fitting the magnetic foot....................................................................................................67
9.3.5 Fitting the network cable ...................................................................................................68
9.3.6 Fitting the electronics ........................................................................................................69
9.3.7 Fitting the switches............................................................................................................70

Metal core drilling
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9.3.8 Positioning the motor.........................................................................................................71
9.3.9 Fitting the protective hose .................................................................................................72
9.3.10 Fitting the container...........................................................................................................74
10 Troubleshooting...............................................................................................................................75

Metal core drilling
Models described
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1 Models described
These repair instructions describe how to repair the following models:
Model
Material number
KBU 110-4 M
7 270 60 .. .. .
JMU 404 M
7 270 60 .. .. .

Metal core drilling
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.

Metal core drilling
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 should 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 any repairs.

Metal core drilling
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.

Metal core drilling
Safety instructions
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5 Safety instructions
5.1 Structure
5.2 Danger classification
Warning
This warning indicates a dangerous situation. If this situation is not avoided, it may lead to serious or fatal
injury.
Caution
This warning indicates a potentially dangerous situation. If this situation is not avoided, it may lead to slight
or minor injury. May also be used as a warning about 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 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.

Metal core drilling
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

Metal core drilling
Tools, lubricants and auxiliary substances required
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6 Tools, lubricants and auxiliary substances required
6.1 Standard tools
Cross-tip screwdriver
PH2
Torx
T15; T20
Socket wrench
13 mm
Socket head wrench set
Socket head wrench with pin
5 mm
Circlip pliers
Plastic hammer
Arbor press
Side-cutting pliers
Punch
1 mm; 2 mm
Magnet
Inner bearing puller set
Slide hammer
Socket wrench
Socket wrench insert
7 mm
Open-ended spanner
19 mm
Sleeve
78 mm inner diameter
55 mm inner diameter
16 mm outer diameter
6.2 Special tools
Drawing-off socket cap
6 41 04 150 00 0
Chuck cone
26 mm
diameter
6 41 07 026 00 0
32 mm
diameter
6 41 07 032 00 0

Metal core drilling
Tools, lubricants and auxiliary substances required
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6.3 Lubricants and auxiliary substances required
Grease
0 40 132 0300 0
500 g
Gearbox
Grease
0 40 128 0300 0
10 g
Guides, seals
Loctite 242

Metal core drilling
Test and diagnosis options
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7 Test and diagnosis options
The BMPB2 drill motor test box diagnosis tool
can be used for the models listed in these repair instructions.
The BMPB2 drill motor test box can help with error diagnosis.
More detailed information can be found in the FEIN electronic information system.

Metal core drilling
Disassembly
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8 Disassembly
8.1 Disassembling the drill jig
8.1.1 Removing the container
1. Remove the container (1).
2. Remove the hose (2) from the hose socket.
INFORMATION
Tip
Fluid may be present in the container.
- Always drain the container (1) before disassembly.
2
1

Metal core drilling
Disassembly
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8.1.2 Removing the switches
Tools:
- Torx T15
1. Unscrew the five screws (1).
2. Remove the cover (2).
3. Remove all connectors.
4. Remove the three buttons (3).
5. Remove the two switches (4).
6. Remove the LED (5).
1
2
3
4
5

Metal core drilling
Disassembly
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8.1.3 Removing the electronics
Steps that must be completed:
- Removing the switches
Tools:
- PH2 cross-tip screwdriver
1. Remove all connectors.
2. Remove the protective hose (1).
3. Remove the four screws (2).
4. Remove the electronics (3).
5. Unscrew the two screws (4).
6. Remove the two cables (5).
1
2
3
4
5

Metal core drilling
Disassembly
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8.1.4 Removing the network cable
Steps that must be completed:
- Removing the electronics
Tools:
- Torx T15
1. Unscrew the screw (1).
2. Remove the cover (2).
3. Unscrew the screw (3).
4. Remove the cable clamping piece (4).
5. Remove the cables (5).
6. Remove the cover (6).
7. Remove the two protective caps (7).
8. Remove the protective hose (8).
1
2
3
4
5
6
8
7

Metal core drilling
Disassembly
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8.1.5 Removing the magnetic foot
Steps that must be completed:
- Removing the electronics
Tools:
- Socket head wrench, 6 mm
1. Unscrew the nut (1).
2. Unscrew the screw (2).
3. Unscrew the two cylinder head screws [M8x22] (3).
4. Repeat step 3 on the opposite side of the machine.
5. Remove the magnetic foot (4).
1
2
3
4

Metal core drilling
Disassembly
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8.1.6 Removing the protective hose
Steps that must be completed:
- Removing the electronics
Tools:
- Torx T20
- PH2 cross-tip screwdriver
- Socket head wrench, 6 mm
- Side-cutting pliers
1. Unscrew the three screws (1).
2. Remove the cover (2).
3. Unscrew the screw (3).
4. Unscrew the screw (4).
5. Remove the housing (5).
6. Undo the cable tie (6).
7. Remove the two cables (7).
8. Remove all connectors.
9. Remove the two terminals (8).
10. Remove the protective hose (9).
1
2
3
4
5
6
8
9
7

Metal core drilling
Disassembly
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8.1.7 Removing the motor
Steps that must be completed:
- Removing the electronics
- Removing the protective hose
Tools:
- Socket head wrench, 6 mm
1. Undo the screw (1).
2. Move the drill motor upwards.
3. Lift the motor (2) out of the guide.
2
1