Atlas Copco PHE 20 N 수리 지침 - 페이지 3

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Dismantling the

Pull up the reduction gear shaft (4)

wobble gear

together with the thrust bearing, turn them

90 ° , and pull the wobble gear drive (2)

drive

from the cylinder. Remove the coupling

sleeve (5) and the driver (3).

Remove the reduction gear wheel (1) from

the reduction gear shaft with aid of a

press.

Dismantling the

Remove the bearing end plate (4). If nec-

bearing end plate

essary, remove the gasket (3).

Remove the carbon brushes (1) and the

brush holder insulations (2).

Dismantling the

Remove the screws from the housing (2).

handle shells

Remove and disassemble the armature (4).

Branch off and remove the field (3).

Loosen the power supply lead (1) and the

other electronic parts and remove them

from the housing.

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! No

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).

Repair Instructions No.166.11/95

PHE 16 RL-N / PHE 20 N

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