TM-9-2520-270-34

HYDROMECHANICAL CROSSDRIVE, TRANSMISSION HMPT 500 AND TRANSMISSlON CONTAINER ASSEMBLY

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE

NOVEMBER 1984

TM-9-2520-270-34 - Page 823 of 933

TM 9-2520-270-34

23. INSPECT CONTROL VALVE

PISTON GROOVES (1).

a. If four grooves (1) are visible

through port opening (2), go to

step 24.

b. If four grooves (1) are not visible,

go to step 25.1.

NOTE

Spur gear may move on pump shaft. This is

not end play. Pump shaft must move in and

out of the housing.

25.

25.1

CHECK END PLAY BETWEEN

PUMP SHAFTS (6) AND HOUSING (7).

a. Grasp gears (4) and (5) and move

shafts (6) in and out of housing (7).

b. If there is end play in both shafts (6),

go to step 26. If not, go to step 25.1.

REPLACE PUMP. RECORD FAILURE

ON DA FORM 2407 AND RETURN

DEFECTIVE PUMP TO DEPOT.

GO TO STEP 40.

24. ROTATE PUMP SPUR GEARS (4)

AND (5).

a. If there is no binding when spur

gears (4) and (5) are rotated, go

to step 25.

b. If there is binding when spur gears (4)

and (5) are rotated, go to step 25.1.

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