Toro Groundsmaster 455-D Service Manual page 161

Cutting Unit Operation Problems (continued)
Condition
___________________________________________________________________________________________
No cutting units Operate.
®
Groundsmaster 455-D
Possible Cause
Axle in HI range.
"Deck" fuse open.
"Relay" fuse open.
PTO clutch air gap out of
adjustment.
PTO clutch faulty.
PTO clutch wiring loose, corroded
or damaged.
Cutting unit relay faulty.
Cutting unit relay wiring loose,
corroded or damaged.
Transaxle shift linkage out of
adjustment (not closing Hi/Low
switch in Low range).
Axle HI/LOW switch or plunger
faulty.
Axle HI/LOW switch wiring loose,
corroded or damaged.
PTO switch faulty.
PTO switch wiring loose, corroded
or damaged.
Problem not electrical.
Page 5 - 13
Correction
Axle must be in Low range for
cutting units to operate.
Check fuse and replace if fuse is
open. If fuse burns out often, find
and correct cause.
Check fuse and replace if fuse is
open. If fuse burns out often, find
and correct cause.
Check air gap and adjust if
necessary.
Test clutch. Repair or replace if
faulty.
Repair wiring.
Test relay. Replace relay if faulty.
Repair wiring.
Check linkage and adjust if
necessary.
Test switch. Check for proper
installation and operation of
plunger assembly. Replace
switch or repair plunger if faulty.
Repair wiring.
Test switch. Replace if faulty.
Repair wiring.
See Chapter 7 - PTO System.
Troubleshooting