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 TM 9-2815-220-24
OIL PUMP REPAIR
0154 00
INSPECTION (Continued)
11. Measure outside diameter of shafts (40, 41).
a. Measure outside diameter (A) of reserve impeller shaft (40).
b. Measure outside diameter (B) of driven impeller shaft (41).
c. Replace oil pump if not within specifications in the following table.
Location
Sizes and Fit of New Parts
Wear Limits
inches (mm)
A, B
0.9834 (24.9783)
0.9839 (24.9910)
0.9829 (24.9656)
40
41
A
B
12. Pressure relief springs (3, 4) are mandatory replacement items.
a. New springs (3 or 4) may be tested with a spring tester to specifications in the following
table.
Location
Sizes and Fit of New Parts
Wear
inches (mm)
Limits
3 (Outer)
Approximate free length:
4.96 inch (125.984)
None
Load at 3.22 inch (81.788):
141.5-156.5 lb (64.241-71.096 kg)
Maximum solid height:
2.90 inch (73.66)
4 (Inner)
Approximate free length:
4.27 inch (108.458)
None
Load at 3.22 inch (81.788):
95-105 lb (43.13-47.67 kg)
Maximum solid height:
2.94 inch (74.676)
3
4
WP 0154 00-10
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