Cutting Operation Problems - Toro Groundsmaster 455-D Service Manual

Cutting Unit Operation Problems
Condition
__________________________________________________________________________________________
Engine continues to run (but
should not) when PTO switch is
ON with no operator on the seat.
________________________________________________________________________________________________________________________________________________________
Wing cutting unit runs (but should
not) when raised, but shuts off
with PTO switch.
________________________________________________________________________________________________________________________________________________________
Wing cutting units shut off when
raised, but cutting units do not
shut off with PTO switch.
________________________________________________________________________________________________________________________________________________________
Cutting units run (but should not)
with axle in "HI" range.
Troubleshooting
Possible Cause
Seat switch plunger depressed
with no operator on seat.
Seat switch faulty or out of
adjustment.
Time delay relay faulty.
Wing switch faulty.
Cutting unit relay faulty.
PTO switch faulty.
Axle HI/LOW switch or plunger
faulty.
Cutting unit relay 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.
Test switch. Replace if faulty.
Make sure switch is properly
installed.
Test relay. Replace if faulty.
Test switch. Replace if faulty.
Test HI/LOW switch. Check for
proper installation and operation
of plunger assembly. Replace
switch or repair plunger if faulty.
Test cutting unit relay. Replace if
faulty.
Groundsmaster
®
455-D