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Groundsmaster 4000--DHydraulic System Page 4 -- 70
Gear Pump Service
1. Dust seal
2. Retaining ring
3. Flange washer
4. Shaft seal
5. Front cover
6. Dowel pin (16 used)
7. Pressure seal
8. Back--up gasket
9. Thrust plate (8 used)
10. Seal (8 used)
11. Idler gear
12. Drive shaft
13. Back--up gasket
14. Pressure seal
15. Front body
16. Splined connecting shaft (3 used)
17. Flange
18. Drive gear
19. Body
20. Body
21. Drive gear
22. Idler gear
23. Rear body
24. Rear cover
25. Cap screw (4 used)
26. Washer (4 used)
Figure 50
10
11
8
15
5
3
19
20
21
22
23
24
9
7
25
26
6
1
2
16
17
18
4
14
13
12
9
33 ft--lb
(45 N--m)
11
22
21
Disassembly (Fig. 50)
NOTE: Thegear pumpmustbereplacedasacomplete
assembly. Individual gears, housings and thrust plates
are not available separately. Disassemble gear pump
for cleaning, inspection and seal replacement only.
IMPORTANT: Keep bodies, gears, flanges and
thrust platesforeachpump 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 diagonal line across the
gear pump for assembly purposes (Fig. 51).
Figure 51
DIAGONAL LINE