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 75 of 933
TM 9-2520-270-34
Section IV. INSPECTION TREES
FAULT SYMPTOM INDEX
Symptom or Deficiency
(From DA Form 2407)
Inspection Tree/( Task)
Page
Delay at first to
second range shift point . . . . . . . .
. . NO ACCELERATION IN SECOND RANGE . . . . . . . . . 2-34
Disconnect clutch failure . . . . . . . .
. .VEHICLE STEERS IN NEUTRAL. . . . . . . . . . . . . . . . . . . 2-138
Engine stalls during braking . . . . . . . ENGINE STALLS DURING BRAKING . . . . . . . . . . . . . . 2-96
Engine stalls when
transmission is engaged , , . . . . . . . . FROZEN INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83
Low makeup pressure . . . . . . . . . . . . . LOW MAKEUP PRESSURE, . . . . . . . . . . . . . . . . . . . . . . . 2-47
Neutral creep . . . . . . . . . . . . . . . . . . . . . TRANSMISSION CREEP . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
No acceleration in second range . .
. NO ACCELERATION IN SECOND RANGE. . . . . . . . . 2-34
No acceleration in third range . . . . . . NO ACCELERATION IN THIRD RANGE . . . . . . . . . . . 2-103
No back problem . . . . . . . . . . . . . . . . . . NO PROPULSION, WITH STEER . . . . . . . . . . . . . . . . . . 2-118
No input to transmission . . . . . . . . . . . NO INPUT TO TRANSMISSION . . . . . . . . . . . . . . . . . . . 2-14
No propulsion, no steer . . . . . . . . . . . . NO PROPULSION, NO STEER . . . . . . . . . . . . . . . . . . . . 2-129
No speed reference signal . . . . . . . . . NO PROPULSION, WITH STEER . . . . . . . . . . . . . . . . . . 2-118
Poor acceleration. . . . . . . . . . . . . . . . . . NO ACCELERATION IN SECOND RANGE . . . . . . . . . 2-34
Rollback problem . . . . . . . . . . . . . . . . . . TRANSMISSION ROLLBACK. . . . . . . . . . . . . . . . . . . . . . 2-74
Service brake problem
with brake coolant test failed .
. . . . . SERVICE BRAKE FAILURE . . . . . . . . . . . . . . . . . . . . . . . 2-25
Service brake problem
with brake coolant test passed . . . . SERVICE BRAKE FAILURE . . . . . . . . . . . . . . . . . . . . . . . 2-25
Transmission contaminated . . . . . .
. .CLEAN MAIN HOUSING ASSEMBLY (TASK) . .
....4-155
Vehicle moves forward
or backward in pivot-steer . . . . . . . . NO FULL STEER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
Vehicle moves in pivot-steer
with steering yoke centered . . . . . . . TRANSM ISSION CREEP . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Weak left hydraulic assembly . . . . . . NO FULL STEER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
Weak right hydraulic assembly . . . . . NO FULL STEER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
2-13
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