TM-9-2320-361-34

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

MAY 1992

TM-9-2320-361-34 - Page 362 of 764

TM 9-2320-361-34

15-12.

DELlVERY PUMP REPAIR

(Contd)

c. Inspection

1.

Table 15-3. Delivery Pump Wear Limits.

ITEM

NO

ITEM/POINT OF MEASUREMENT

WEAR LIMITS/ TOLERANCES

INCHES MILLIMETERS

1

Rotor:

Shaft diameter at seals

Vane slot width

1.18

29.9 7

0.50

12.

7

2

4

Pump body (bore diameter bypass valve

1.25

31.75

Vane:

Thickness

Width

Clearance when installed in rotor

0.48-0.49

1.20-1.21

0.01-0.02

12.19-12.45

30.48-30.73

0.25-0.5 1

6

Bypass valve (diameter)

1.24

31.50

2.

3.

4.

5.

For general inspection instructions, refer to para. 2-9.

Inspect pump body (2) for cracks, damaged threads, wear, or defects. Refer to table 15-3, Delivery

Pump Wear Limits, for measurements. Replace if damaged or worn past limits.

Inspect rotor (1) for bent shaft, scoring or wear at shaft, key slot, or vane slot. Refer to table 15-3,

Delivery Pump Wear Limits, for measurements. Replace if damaged or worn past limits.

Inspect four vanes (4) for bends, cracks, scoring, or wear. Refer to table 15-3, Delivery Pump Wear

Limits, for measurements. Replace if damaged or worn past limits.

Inspect bypass valve (6) for breakage, scoring, or wear. Refer to table 15-3, Delivery Pump Wear

Limits, for measurements. Replace if damaged or worn past limits.

15-51