SHOP MANUAL
Engine
Ch 1 page 174
Clean and check the following parts:
Half shaft 22. Especially check the sealing surface of the sealing ring 20 and the bearing surface of the slide
bearing. Slide bearing in end plate.
Plunger 9 in the control valve. The plunger must not jam in the housing.
Blow all channels in the pump housing clean. Ball bearing 24.
Checking and renewing rotor assembly:
Check the rotor housing 11 with rotor 12 and vanes 13 for wear. The vanes must rotate easily in the rotor.
Check the wear plate 14 and pressure plate 10 for discolouring, wear and scratches. Especially check the
surfaces contacting the rotor.
Checking and renewing parts
1 Pump housing
2 Bolt, 4 off
3 Washer, 4 off
4 O-ring, 2 off
5 Support ring, 2 off
6 Plug
7 O-ring
8 Compression spring
9 Control valve
10 Pressure plate
11 Rotor housing
12 Rotor
13 Vanes
14 Wear plat15e
15 O-ring
16 Guide pin, 2 off
17 O-ring
18 End plate
19 Spacing ring
20 Sealing ring
21 Washer
22 Axle
23 Retaining ring
24 Bearing
25 Retaining ring
26 Gear
27 Nut
28 Flange
29 Gasket
30 Stud, 2 off
31 Bolt, 5 off
If any of these parts are damaged or visually worn, the com-
plete pump must be replaced.
NOTE
If any of these parts are damaged or visually worn, the rotor as-
sembly must be renewed. Renew the following parts:
O-rings 4, 7, 15 and 17
Support rings 5
Sealing ring 20
Retaining ring 23
NOTE
Figure 342
Figure 343
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