Trouble Shooting 1.66 - Toro 02750 Operator's Manual

1.66
When using the following chart it may be found that overhaul of major components or hydraulic
pressure adjustments are necessary. In this case it is recommended that your authorised dealer make
these repairs as they are properly equipped to do this work.
WARNING: PREVENT ACCIDENTS - ALWAYS Apply the parking brake, switch off the engine
and remove the ignition key before attempting to work on the mower.
FAULT
Engine will not start with
ignition key
For all other engine problems; refer to ENGINE HANDBOOK
Differential lock non
operational
Flat battery
Hydraulic oil system
overheating
Incorrect brake operation
TROUBLE SHOOTING
POSSIBLE CAUSE
Transmission neutral interlock switch not
energised
Parking brake interlock switch not
energised
Cutterhead drive interlock switch not ener-
gised
Faulty electrical connection
Defective switch
Defective solenoid valve
Defective wiring
Terminal connection loose or corroded
Loose or defective alternator belt
Defective battery
Electrical short circuit
Blocked radiator screen
Blocked oil cooler fins
Blocked engine radiator matrix
Low relief valve setting
Low oil level
Brakes engaged
Cutting cylinders tight on bottom blades
Defective fan or fan drive
Faulty wheel motor brake assembly
Worn brake discs
REMEDY
Remove foot from forward/reverse pedals
Check setting of transmission neutral
interlock switch
Operate parking brake lever to the ON
position
Check setting of parking brake interlock
switch
Move cutterhead drive switch to the OFF
position
Check setting of cutterhead interlock switch
Trace and correct fault
Check switch and replace if necessary
Service or replace solenoid valve
Check wiring/connections as necessary
Clean and tighten terminal connections.
Recharge battery
Re tension or replace drive belt, refer to
ENGINE HANDBOOK
Recharge battery
Replace battery
Trace short circuit and make good
Clean screen
Clean fins
Clean matrix
Have relief valve cleaned and pressure
checked. Consult your authorised dealer
Fill reservoir to correct level
Disengage brakes
Readjust settings
Check fan operation and service required
Consult your authorised dealer
Replace brake discs
Consult your authorised dealer
1.66