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Page Title:
DELIVERY PUMP REPAIR - continued |
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 TM 9-2320-361-24-2
0461 00
DELIVERY PUMP REPAIR (Contd)
INSPECTION
1.
For general inspection instructions, refer to WP 0021 00.
Table 1. Delivery Pump Wear Limits.
ITEM NO.
ITEM/POINT OF MEASUREMENT
WEAR LIMITS/TOLERANCES
INCHES
MILLIMETERS
1
Rotor:
Shaft diameter at seals
1.18
29.97
Vane slot width
0.50
12.7
2
Pump body (bore diameter bypass valve)
1.25
31.75
4
Vane:
Thickness
0.480.49
12.1912.45
Width
1.201.21
30.4830.73
Clearance when installed in rotor
0.010.02
0.250.51
6
Bypass valve (diameter)
1.24
31.50
2.
Inspect pump body (2) for cracks, damaged threads, wear, or defects. Refer to table 1, Delivery
Pump Wear Limits, for measurements. Replace pump body (2) if damaged or worn past limits.
3.
Inspect rotor (1) for bent shaft, scoring or wear at shaft, key slot, or vane slot. Refer to table 1,
Delivery Pump Wear Limits, for measurements. Replace rotor (1) if damaged or worn past limits.
4.
Inspect four vanes (4) for bends, cracks, scoring, or wear. Refer to table 1, Delivery Pump Wear.
Limits, for measurements. Replace vanes (4) if damaged or worn past limits.
5.
Inspect bypass valve (6) for breakage, scoring, or wear. Refer to table 1, Delivery Pump Wear
Limits, for measurements. Replace bypass valve (6) if damaged or worn past limits.
1
2
4
6
0461 00-5
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