TM 9-6115-604-34
NAVFAC P-8-633-34
1. CAPSCREW
25. LOCKPLATE
2. LOCKNUT
26. SHIM
3. BRACKET CLAMP
27. CAPSCREW
4. CAPSCREW
28. LOCKPLATE
5. LOCKPLATE
29. LUBRICATING PUMP COVER
6. SUPPORT BRACKET
30. PRESSURE RELIEF HOUSING
7. CAPSCREW
31. RELIEF GASKET
8. LOCKPLATE
32. ROLL PIN DOWEL
9. OIL SUCTION TUBE
33. RETAINING PIN
10. FLANGE GASKET
34. PLAIN WASHER
11. CAPSCREW
35. RELIEF SPRING
12. LOCKNUT
36. RELIEF PLUNGER
13. SUPPORT BRACKET
37. HEXAGON HEAD CAPSCREW
14. HEXAGON HEAD CAPSCREW
38. LOCKPLATE
15. LOCKPLATE
39. LUBRICATING PUMP COVER
16. HEXAGON HEAD CAPSCREW
40. LUBRICATING PUMP GASKET
17. LOCKPLATE
41. LUBRICATING PUMP GEAR
18. OIL CONNECTION
42. LUBRICATING PUMP SHAFT
19. GASKET
43. LUBRICATING PUMP DRIVE GEAR
20. SEAL
44. LUBRICATING PUMP GEAR
21. HEXAGON HEAD CAPSCREW
45. LUBRICATING PUMP SHAFT
22. LOCKPLATE
46. LUBRICATING PUMP BUSHING
23. TRANSFER TUBE
47. LUBRICATING PUMP BODY
24. HEXAGON HEAD CAPSCREW
Figure 8-4. Lubricating Oil Pump, Exploded View (Sheet 2 of 2)
NOTE
The step at the gear thrust face and body surface controls gear end clearance.
f.
Temporarily install the assembled gears and shafts (41, 42, 44, and 45) in the body (47) and measure the
step at the gear thrust face and body surface with a feeler gage or depth micrometer. If the step is greater
than 0.007 inch (0.18 mm), replace the gears or body, or both the gears and body so that the assembled end
clearance will be 0.004 to 0.007 inch (0.01 to 0.18 mm).
g.
Check the gear thrust surface on the cover (39). Replace the cover if the surface is worn or scored deeper
than 0.003 inch (0.08 mm).
h.
Check the pressure relief plunger (36), and pressure relief housing (30) for scoring, and check the plunger for
binding in the housing. Replace the parts if they are visibly scored, or if binding exists.
i.
Using a straight-edge, check the spring (35) for warping. Replace the spring if it is warped or out-of-square.
8-12.
OIL PUMP REPAIR.
a.
If the bushings in the body or cover are worm, replace them as follows:
(1)
Using bushing drivers and an arbor press, remove the worn bushings and press new bushings to depth
shown in Figure 8-5 and Figure 8-6.
(2)
Using boring tool 3375206 bore the inside diameter of the new bushings in the body and/or cover to
1.5025 to 1.5040 inches (38.164 to 38.202 mm). The bored bushings must be within the dimensions
shown in Figure 8-5 and Figure 8-6.
b.
If either the lubricating pump shafts (42 and 45, Figure 8-4) or lubricating pump gears (41 and 44) are worn,
replace them as follows:
(1)
Using an arbor press, press the shafts (42 or 45) out of the gears (41 or 44).
(2)
Assemble the drive shaft (45) to the gear (44) using an arbor press. Press the shaft into the gear to
dimension 4, Figure 8-7.
(3)
Assemble the idler shaft (42) to the gear (41) using an arbor press. Press the shaft into the gear to
dimension 5, Figure 8-7.
8-9
