Atlas Copco PHE 50 S, Repair Instructions

9

PAGE

Repair Instructions Nr.183.09/00

PHE 50 S

Assembly

Mounting the 
bevel wheel

1

Press the bearing (2) flush into the gear 
housing (6).
Press the bevel wheel (1) into the bear-
ing (2).

2

Mount the O-rings (4) and (5) and press in 
the two pins (3). 

3

Insert the O-ring (7) into the groove of the 
gear housing.

Assembling
the drive

1

Press the ball bearing (9) onto the pin-
ion (A) and mount the following parts one 
after the other on the pinion (A):
spacer (B),
plate (8)
spring plate (6),
friction disc (5),
drive wheel (4),
friction disc (3),
spring plate (2).

☞

Lightly grease discs (3) and (5) with 
blue grease, type Mobilith HP 222.

2

Mount the spring ring (1), depressing the 
spring plate (2) at the same time.

3

Insert the assembled drive into the gear 
housing (C) and fix it with screws (7) 
through the aligned plate (8).

☞

Cover the screws (7) with screw lock-
ing device and tighten with 2 Nm.

☞

The safety clutch can't be adjusted: In 
case the drill bit does not rotate at low 
load, please check the spring plates 
and the clutch discs for wear.  If neces-
sary, replace them.

Mounting the 
connecting rod

1

Mount the four-lips-seal-ring (1) to the pis-
ton (2).

2

Press the bearing (4) into the connecting 
rod (5).

3

Push the connecting rod (5) into the pis-
ton (2) and secure it with the bolt (3).

6

5

4

3

1

2

7

1

3

4

1

5

6

2

7

8

9

B

A

C

2

3

4

1

2

5

3