Hydraulic Pump Service - Toro Multi Pro 1750 Service Manual

Hydraulic Pump Service

15
17
18
16
1. Socket head screw (4)
2. Washer (8)
3. Rear cover
4. Relief valve
5. O−ring (2)
6. Body
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.
Hydraulic System
11
14
12
13
7. Dowel pin (2)
8. Backup seal
9. Pressure seal
10. Rear thrust plate
11. Drive shaft
12. Driven gear
7
8
9
5
10
Figure 23
MARKER LINES
Page 4 − 30
220 in−lb
(25 N−m)
4
3
5
6
13. Front thrust plate
14. Pressure seal
15. Backup seal
16. Front cover
17. Shaft seal (2)
18. Retaining ring
Figure 24
1
2
Multi Pro 1750