Fein Kbh25 Operating instructions

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

KBH 25

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

These instructions describe how to repair the following models:

Model Order no.

KBH 25 727101

1. Models described

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

1. Provisions

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.

Only use original FEIN spare parts!

The relevant accident prevention regulations of the employers’ liability insurance associations are

to be observed when commissioning.

The German Equipment and Product SafetyAct applies for correct use.

Outside Germany, the regulations applicable in the relevant country must be observed!

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

1. Provisions

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.

Only use original FEIN spare parts!

The relevant accident prevention regulations of the employers’ liability insurance associations are

to be observed when commissioning.

The German Equipment and Product SafetyAct applies for correct use.

Outside Germany, the regulations applicable in the relevant country must be observed!

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

1. Technical data

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.

Lubricants

Lubricants and container sizes available from FEIN can be found on the FEIN Extranet.

Lists of spare parts

Lists of spare parts and exploded views are available online at www.fein.com

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

3. General checks

Rated voltage 220 - 240 V

Test voltage 230 V

Load current 5.5 A

Idling current approx. 10 % (1.62 –2.07 A) 1.8 A

Idling speed for level 6 approx. +/- 3% tolerance (504 - 536 rpm) 520 rpm

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4. Tools required

Standard tools

Steel hammer

Plastic hammer

Torx 15 screwdriver

Torx 20 screwdriver

Internal, external circlip pliers

PZ 1 cross-tip screwdriver

Flat nose pliers

Arbor press

Punch

Slotted screwdriver

Sleeves

Longsleeve Circlip, angled

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

5. Lubricants and auxiliary

substances required

Lubricants

Grease 0 40 101 0100 4 90 g

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4. Dismantling

Before starting to repair or disassemble the tool,

you must remove the mains plug from the socket

and remove the drill bit from the tool.

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.1. Removing the motor

Unscrew both carbon holder covers.

Pull up carbon brush and clamp firmly with spring or pull all the way out of the

carbon holder.

Unscrew screws from gearbox housing.

Pull gearbox housing out of motor housing with armature. Tool:

- Torx 15 and 20 screwdriver

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.1. Removing the motor

Loosen screws and take off handle half shell.

Unscrew cable clamping bridge for cable.

Loosen screw connection from cable on switch and

take out cable.

Tool:

- Torx 20 screwdriver

- PZ 1 cross-tip screwdriver

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.1. Motor

Take off bottom handle half shell.

Move motor housing into upright position.

Use screwdriver to gently unlock electronics at locking tabs and remove from

above.

NOTE

The two locking tabs snap in to the motor housing near the ball bearing seat.

The locking tabs can be easily broken off so only lever up slightly.

Tool:

- Slotted screwdriver

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.1. Removing the motor

NOTE

Carbon holders can only be replaced once the electronics have been removed

Loosen screws on air guide ring and take ring out.

Drive out field coil by gently tapping the edge of the motor housing with a plastic hammer.

Tool:

- Torx 20 screwdriver

- Plastic hammer

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.2. Removing the electronics / switch

Disconnect plug-in/clamping contacts on switch.

Attention –do not mix up coloured connections,

otherwise tool will have limited functionality or

incorrect direction of rotation.

Tool:

- Flat nose pliers

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.3. Removing the gearbox / armature

Drive armature out of intermediate bearing by tapping gently with a plastic hammer.

Prise off plastic bush along with magnet ring.

Pull out ball bearing.

NOTE

The plastic bush is damaged when removed and always has to be replaced. Tool:

- Plastic hammer

- Slotted screwdriver

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.4. Removing the gearbox

Place gearbox housing on intermediate bearing.

Remove upper circlip.

Remove all components, including the two balls.

Rotate drill shaft until the wrench flat provides good access for removing the circlip.

Remove circlip in gearbox housing.

Tool:

- Longsleeve Circlip, angled

- External circlip pliers

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.4. Removing the gearbox

Disconnect gearbox housing and intermediate bearing.

Remove grease. If the slipping clutch remains in the

gearbox housing when the two housings are separated, take it out at this point.

Remove circlip from gear-wheel.

Take out gear-wheel.

Tool:

- Slotted screwdriver

- External circlip pliers

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.4. Removing the gearbox

Remove pressure spring and intermediate gear.

Press drill shaft out of gearbox housing.

Tool:

- Arbor press

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.5. Removing the drill shaft

Slide sleeve off drill shaft

Remove circlips

FEIN REPAIR TOOLS

FEIN retains all rights of disposal, such as copying and circulation. C-SC_CSSM 2012.05

4.5. Removing the drill shaft

Pull both bolts out of drill shaft from the front.

Remove the two balls.

Remove circlip on ball bearing.

Press ball bearing down and off drill shaft.

NOTE

The ball bearing is damaged when pressed down and must be replaced.

Tool:

- Arbor press

- External circlip pliers

Fein KBH25 Operating instructions

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