Multi Pro 1750Hydraulic System Page 4 − 30
Hydraulic Pump Service
1. Socket head screw (4)
2. Washer (8)
3. Rear cover
4. Relief valve
5. O−ring (2)
6. Body
7. Dowel pin (2)
8. Backup seal
9. Pressure seal
10. Rear thrust plate
11. Drive shaft
12. Driven gear
13. Front thrust plate
14. Pressure seal
15. Backup seal
16. Front cover
17. Shaft seal (2)
18. Retaining ring
Figure 23
220 in−lb
(25 N−m)
2
3
6
8
9
10
11
13
1
5
7
12
14
15
16
17
18
4
5
Disassembling the Hydraulic Pump (Fig. 23)
1. Install clean plugs in pump ports and clean the out-
side of the pump thoroughly. After cleaning, remove
plugs and drain any oil out of the pump.
2. Use a marker to make a “V” across the front cover,
body and rear cover for assembly purposes (Fig. 24).
IMPORTANT: When clamping the pump in a vise,
clamp only on mounting flange. DO NOT clamp
pump body in a vise.
3. Clamp mounting flange of pump in a vise with the
shaft end down.
4. Loosen four (4) socket head screws that secure the
rear cover.
5. Remove pump from the vise. Remove socket head
screws and washers.
Figure 24
MARKER LINES
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