Table 4-35. Oil Pump Drive Impeller and Impeller Bore Wear Limits

TM 9-2815-210-34-2-2

FRAME 15

NOTE

Readings must be within limits given in table 4-35. The

letter L shows a loose fit. If readings are not within

given limits, get a new oil pump.

Measure depth of pressure pump drive impeller bore (1).

M e a s u r e length A of pressure pump drive impeller (2).

M e a s u r e clearance between pressure pump drive impeller (2) and top of

p r e s s u r e pump drive impeller bore (1).

GO TO FRAME 16

Table 4-35. Oil Pump Drive Impeller and Impeller Bore Wear Limits

Size and Fit

Wear Limit

of New Parts

Index

(inches)

Item /Point of Measurement

Number

Pressure pump drive impeller

1.3820

1.3770 to 1.3790

bore depth

P r e s s u r e pump drive impeller

1.3705

1.3735 to 1.3750

length A

1and2

C l e a r a n c e between pressure

p u m p drive impeller and top

0.0020L

0.0055L

o f drive impeller bore

max