Toro Reelmaster 335-D Service Manual page 96

Four Wheel Drive Does Not Engage
Cause
__________________________________________________________________________________________
Front axle shift lever in "HI" (forward) position.
________________________________________________________________________________________________________________________________________________________
Electrical problem.
________________________________________________________________________________________________________________________________________________________
Faulty four wheel drive solenoid valve.
________________________________________________________________________________________________________________________________________________________
Faulty roller clutch.
________________________________________________________________________________________________________________________________________________________
Faulty rear axle hydraulic motor.
Four Wheel Drive Does Not Disengage
Cause
__________________________________________________________________________________________
Electrical problem.
________________________________________________________________________________________________________________________________________________________
Four wheel drive solenoid valve sticking.
________________________________________________________________________________________________________________________________________________________
Faulty roller clutch.
Troubleshooting
Correction
Front axle shift lever must be in "LOW" (rear) position
for four wheel drive to engage.
Check for faulty front axle HI/LOW switch, four wheel
drive solenoid or wiring and repair if necessary.
Inspect and clean solenoid valve and repair or re­
place if necessary.
Replace roller clutch.
Repair or replace motor.
Correction
Check for faulty front axle HI/LOW switch, or wiring
and repair if necessary.
Inspect solenoid valve for damage or sticking in on
position and clean or replace valve if necessary.
Replace roller clutch.
Page 4 - 16
®
Reelmaster 335-D