General Run And Transport Problems - Toro Groundsmaster 455-D Service Manual

General Run and Transport Problems

Condition
__________________________________________________________________________________________
Engine continues to run (but
should not) when traction pedal
depressed with no operator on
seat.
________________________________________________________________________________________________________________________________________________________
Engine kills when traction pedal
is depressed or PTO switch is
turned ON.
________________________________________________________________________________________________________________________________________________________
4WD is engaged (but should not
be) with axle in "HI" range.
Troubleshooting
Possible Cause
Seat switch plunger depressed
is with no operator on seat.
Seat switch faulty or out of
adjustment.
Time delay relay faulty.
Operator sitting too far forward on
seat (seat switch not depressed).
Seat hinge, support pin or spring
binding, preventing seat switch
from closing.
Seat switch is faulty or out of
adjustment.
Seat switch wiring loose, corroded
or damaged.
Time delay relay faulty.
Time delay wiring loose, corroded
or damaged.
"Relay" fuse open.
Ignition switch faulty.
Ignition switch or fuse wiring loose,
corroded or damaged.
Axle HI/LOW switch faulty.
4WD solenoid valve faulty.
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Correction
Check for seat support spring
that is broken, missing or stuck in
down position.
Check for binding seat pivot
hinge.
Check for waterlogged seat.
Test seat switch. Adjust or
replace if faulty.
Test relay. Replace if faulty.
Instruct operator.
Repair seat pivot and support.
Test seat switch. Adjust or
replace if faulty.
Repair wiring.
Test relay. Replace if faulty.
Repair wiring.
Check fuse and replace if fuse is
open. If fuse burns out often, find
and correct cause.
Test ignition switch. Replace if
faulty.
Repair wiring.
Test HI/LOW switch. Replace
switch if faulty.
Test 4WD solenoid valve.
Replace if faulty.
Groundsmaster
®
455-D