FRAME 10 - TM-9-2815-210-34-2-20187

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

FRAME 10

NOTE

Readings must be within limits given in table 4-30. The

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

limits, throw away part and get a new one.

Shims (4) are used .to adjust pressure relief valve. The

number of shims may differ from pump to pump. Some

pumps may have no shims.

Pressure relief valve spring (1) comes in a parts kit

which has new shims (4). If you get a new parts kit,

save all the shims even if pump had no shims. Shims

will be used later during pump test and adjustment.

Parts kit also contains a new plunger (2) and a type of

spring retainer (5) with no threads. This plunger and

spring retainer are for late model pumps and should not

be used on early model pumps.

Measure free length of relief valve spring (1). Measure load needed to

s q u e e z e relief valve spring (1) to 2.100 inches. Measure maximum solid

height of relief valve spring (1).

M e a s u r e outside diameter of pressure relief valve plunger (2).

M e a s u r e inside diameter of pressure relief valve bore (3). If reading is

not within limits given in table 4-30, get a new oil pump.

M e a s u r e fit of relief valve plunger (2) in pressure relief valve bore (3).

If reading is not within limits given in table 4-30, get a new oil pump.

GO TO FRAME 11

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