Greensmaster 3300/3400Hydraulic System Page 5 -- 62
Gear Pump Service
1. O--ring
2. Front cover
3. Back--up seal
4. Pressure seal
5. Thrust plate
6. Drive shaft
7. Idler gear
8. Thrust plate
9. Dowel pin
10. O--ring
11. Housing
12. Coupler
13. Back--up seal
14. Pressure seal
15. Thrust plate
16. Drive gear
17. Idler gear
18. Thrust plate
19. O--ring
20. End cover
21. Socket head screw (4 used)
22. Washer (4 used)
Figure 40
2
3
6
8
9
10
11
13
1
5
7
12
14
15
16
17
18
19
20
4
21
22
3
4
14
13
33 ft--lb
(45 N--m)
Gear Pump Disassembly (Fig. 40)
NOTE: Disassemble gear pump for cleaning, inspec-
tion and seal replacement only. Individual gears, hous-
ings and thrust plates are not available s eparately. If
internal components are worn or damaged, the gear
pump must be replaced as a complete assembly.
IMPORTANT: Keep gears and thrust plates for each
pump section together; do not mix parts between
pump sections.
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 “V” across the front cover,
housingandendcoverforassemblypurposes(Fig.41).
IMPORTANT: Use caution when clamping gear
pumpina vise to avoid distortingany pump compo-
nents. Also, use a vise with soft jaws.
3. Securethefrontcover ofthe pumpinavisewithsoft
jaws with the drive shaft pointing down.
Figure 41
MARKER LINES
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