Transmission TroubleshootingTransmission Troubleshooting
Electrical / Mechanical Checks.Electrical / Mechanical Checks. Prior to check-Prior to check-
ing any part of the system from a hydraulic stand-ing any part of the system from a hydraulic stand-
point, the following electrical / mechanical checkspoint, the following electrical / mechanical checks
should be made.should be made.
1.1. EnsEnsure ture that that the prohe proper sper soleolenoinoids on cds on contontrolrol
valve are valve are energized. energized. When the When the solenoids aresolenoids are
energized they energized they become magnetized. become magnetized. A mag-A mag-
netic field can be checked at the nut that holdsnetic field can be checked at the nut that holds
the solenoid the solenoid to the to the cartridge. cartridge. Some solenoidsSome solenoids
employ a metal nut, encased in plastic, whichemploy a metal nut, encased in plastic, which
will require removal to detect a magnetic field.will require removal to detect a magnetic field.
An effective way to accomplish this is with aAn effective way to accomplish this is with a
metal wrench.metal wrench.
2.2. EnsEnsure ture that that the inhe inchiching vang valve ilve is not es not engangagedged
2.2. WoWork the mrk the machachine to bine to brinring the oil tg the oil tempemperaeraturturee
up to the operating range (refer to step 1.up to the operating range (refer to step 1.
above).above).
NOTE:NOTE: If the mIf the machine cannot be achine cannot be worked, the cworked, the con-on-
verter can be stalled to bring the temperature upverter can be stalled to bring the temperature up
to the to the operating range. operating range. Perform the Perform the following pro-following pro-
cedures to stall the converter.cedures to stall the converter.
3.3. WitWith the rih the right sght servervice bice brakrake pedae pedal appll appliedied,,
move the shifter to the forward position andmove the shifter to the forward position and
third gear selected.third gear selected.
4.4. ConContintinue to apue to apply tply the brahe brakes akes and acnd accelceleraeratete
the engine approximately one-half to three-the engine approximately one-half to three-
quarter throttle for 30 seconds let off accelera-quarter throttle for 30 seconds let off accelera-
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