Hyster D174, Руководство по обслуживанию и ремонту

Страница: 11 / 24

1900 SRM 97 Hydraulic Gear Pump Repair
NOTE: THERE CAN BE A VARIATION OF INTERNAL PARTS ON DIFFERENT MODELS OF LIFT TRUCKS.
1. CAPSCREW
2. WASHER
3. REAR COVER
4. DOWEL PIN
5. SEAL
6. GEAR HOUSING
7. DRIVE GEAR
8. SEAL
9. SEAL SPACER
10. SEAL RING
11. FRONT COVER
12. SHAFT SEAL
13. BEARING BLOCKS
14. DRIVEN GEAR
15. BEARING BLOCKS
16. DOWEL PIN
17. SPACER
18. O-RING
19. CARTRIDGE
20. RELIEF POPPET
21. SPRING
22. SPRING
23. ADJUSTMENT SCREW
24. O-RING
25. PLUG
26. SPRING
27. FLOW CONTROL PISTON
28. O-RING
29. SNAP RING
30. O-RINGS
31. CAPSCREW AND WASHER
32. CAPSCREW AND WASHER
Figure 6. Hydraulic Gear Pump Single-Stage
INSPECT
1. Inspect outside edges of gear teeth for grooves
or scratches. If the edges of the gear teeth are
sharp, use emery cloth to break the edges. Re-
place gears if there are deep grooves on the gears.
2. If the gear shafts have grooves or are worn more
than 0.05 mm (0.002 in.), they must be replaced.
Wear on the seal area of the shaft indicates there
is dirt in the oil or a hard seal. Inspect seal to
see if it has been too hot. Look for small cracks in
seal surfaces. If the seal was too hot or the wrong
oil was used, the seal will be too hard or too soft.
Inspect splines or key groove for damage.
5