Gear Pump Service - Toro Multi Pro 5800 Service Manual

Gear Pump Service

2
1
15
14
1. Front cover
2. Dowel pin (8 used)
3. Square section seal (4 used)
4. Back- -up ring (4 used)
5. Pressure seal (4 used)
6. Thrust plate (4 used)
7. Drive shaft
Disassembly (Fig. 46)
NOTE: Disassemble gear pump for cleaning, inspec-
tion and seal replacement only. If internal components
of pump are worn or damaged, the gear pump must be
replaced as a complete assembly. Individual gears,
housings and thrust plates are not available separately.
IMPORTANT: Keep bodies, gears, flanges and
thrust plates for each pump section together; do not
mix parts between pump sections.
Hydraulic System
7
6
5
4
12
3
16
8. Driven gear
9. Body (P1 section)
10. Flange
11. Splined connecting shaft
12. Drive gear
13. Body (P2 section)
14. Retaining ring
9
13
8
Figure 46
1. Plug pump ports and thoroughly clean exterior of
pump with cleaning solvent. Make sure work area is
clean.
2. Use a marker to make a diagonal line across the
gear pump for assembly purposes (Fig. 47).
IMPORTANT: Use caution when clamping gear
pump in a vise to avoid distorting any pump compo-
nents.
Page 4 - - 60
10
2
18
17
2
22 ft- -lb
(30 N- -m)
15. Front seal
16. Driven gear
17. Rear cover
18. Relief valve (steering/boom lift)
19. Washer (4 used)
20. Bolt (4 used)
Multi Pro 5800
11
2
20
19
33 ft- -lb
(45 N- -m)