Atlas Copco 2000-2/MF Einrichtungshandbuch

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Special Tools

Required

■

Mandril (diameter 9.5 mm), approx. 100 mm long.

■

Assembly support in which the tool can be fixed vertically.

Important!

■

Before beginning the maintenance work, perform an initial check with a high voltage test according

to VDE (see chapter Electrical and Mechanical Test Instructions).

■

Before all repair work, pull the power plug from the socket!

Disassembly

Dismantling the

chuck

Lever off the spring washer (4) with aid of

a screwdriver.

2Remove the pin (3) and the roller (1).

3Pull off the multi-function chuck (2).

4Only applicable for PN 2000 spec. N:

Remove the hammer chuck.

Dismantling the

gear box 1Insert the machine into the assembly

support and remove the four screws (6).

2Lever off the switch levers (2) and (4) with

aid of a screwdriver.

3Remove the gear box (5).

4Remove the pin (8), the gear switch

lever (7),andtheO-ring(3)togetherwiththe

discs.

5Remove the gear wheel (1).

6Remove the spindle sleeve (9).

134

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Dismantling the

reduction gear

Remove the axial needle bearing (4).

2Take out the complete reduction gear,

then remove the reduction gear shaft (8).

3Remove the needle bearing (2) and the

sealing ring (1).

4Remove the sleeve (7), the pin (6), and

the bearing (3).

5Remove the gasket (5).

Dismantling the

cylinder 1Remove he cylinder (3) together with the

percussion body (4). Pull the percussion

body (4) from the cylinder (3).

2Press the snap die (2) from the drill

spindle (5) with aid of a mandril. The

spring ring, the washer, and the rubber

ring are being destroyed.

3Remove the sealing ring (6).

4Remove the needle bearing (1).

3 4

567

2 5

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Dismantling the

handle shells

Unscrew and remove the service cover (2).

2Loosen the screws of the cable clip (5),

remove it and lay bare the power supply

lead.

3Loosen the connectors (4).

4Unscrew and remove the housing (3).

Dismantling the

motor 1Lever off the brush holder insulation (1)

andthebrushholders(3)togetherwiththe

carbon brushes (2).

2Only applicable for PN 2000 SMF2:

Removethe switch(6)completelywiththe

torque pre-setting dial and the torque

switch.

3Dismantle the switch.

4Branch off the cords.

5Removethearmature(4)togetherwiththe

field (5) from the housing.

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Maintenance

General

It is recommended to regularly submit the tool to maintenance, or as soon as the hammer mechanism

gets weak, or when the carbon brushes switch off. When carrying out maintenance all parts of the

maintenance set must be exchanged. Use the respective maintenance set provided for each machine.

Cleaning

Clean all parts – with the exception of the electrical parts – with cold cleaning agent.

Caution!

cleaning agent should penetrate into the bearing. Clean the electrical parts with a dry brush.

Check for wear

Check the disassembled parts for wear (visual inspection) and replace worn parts.

Electrical tests

Before reassembling, perform an electrical test on all relevant parts (see chapter Electrical and

Mechanical Test Instructions).

Lubrication

Each time maintenance is performed, the machine is to be lubricates as stated in the lubrication plan.

After the machine is fully disassembled, completely remove the old grease and replace with new

grease. The grease must be applied to the machine as indicated in the lubrication plan.

Legend

Cover with grease (10 g Tivela)

Cover with grease (20 g Darina)

A A

AAA A

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Assembly

Mounting the

armature

Insert the armature (4) together with the

field (5) into the housing.

2Only applicable for PN 2000 SMF2:

nsert the complete switch (6), with the

torque pre-setting dial and the torque

switch into the housing. Insert the cords

into the provided reliefs and connect them

according to the wiring diagram.

3Mount the switch.

4Insert the brush holder insulations (1) and

the brush holders (3) together with the

carbon brushes (2) into the housing.

Assembling the

housing 1Fit the housing (3) and fasten it with

screws. Take care that no cables are

squeezed or jammed.

2Fixthe power supply lead with the connec-

tors (4) and fasten the cable clip (5) with

screws.

3Screw down (1) the service cover (2).

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Mounting the

cylinder

Mount the needle bearing (1).

2Insert the sealing ring (6).

3Insert the snap die (2), the rubber ring, the

washer, the spring ring, and the drill

spindle (5).

4Insert the cylinder (3) as shown in

illustration. Insert the percussion body (4)

into the cylinder (3).

Assembling the

reduction gear 1Mount the bearing (3) and the gasket (5).

2Insert the pin (6) and the sleeve (7).

3Mount the sealing ring (1) and the needle

bearing (2).

☞Press the reduction gear wheel (9)

onto the wobble gear drive. The end

play must be 0.05 + 0.03 mm.

4Mount the reduction gear complete with

thereduction gear shaft(8).Insert thedisc

springs opposite each other (see illustra-

tion).

5Mount the axial needle bearing (4).

2 5

3 4

567

PAGE

Repair Instructions No.176.11/95

PN 2000-2/ MF/ MF2/ N/ SMF2/ spec.N

Mounting the

gear box

Insert the spindle sleeve (9) into the gear

box.

2Fit the gear wheel (1).

3Insert the O-ring (3) together with the

discs. Mount the gear switch lever (7) and

the pin (8).

4Place the complete gear box (5) onto the

motor housing.

5Insert new switch levers (2) and (4) into

the gear box.

6Fit the gear box (5) to the motor housing

and fasten with the four screws (6).

Mounting the

chuck 1Mount the multi-function chuck (2).

2Insert the tension pin (3) and the roll (1).

3Insert the spring washer (4).

4Only applicable for PN 2000 spec. N:

Mount the hammer chuck.

Test Run

Electrical Test

Check the direction of rotation!

Let the machine run-in.

Perform an electrical test on the machine (see chapter Electrical and Mechanical Test Instructions).

134

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