Hayter Mowers T424 - Manual (Page 69)

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1.69 1.69 TROUBLE SHOOTING
POSSIBLE CAUSE
Defective switch.
Defective solenoid
valve.
Defective wiring.
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.
PROBLEM
Differential lock
non operational.
Hydraulic oil sys-
tem overheating.
Incorrect brake
operation.
REMEDY
Check switch and
replace if necessary.
Service or replace
solenoid valve.
Check wiring/connections as
necessary.
Clean screen.
Clean fins.
Clean matrix.
Have relief valve cleaned and
pressure checked. Consult
your Hayter dealer.
Fill reservoir to
correct level.
Disengage brakes.
Readjust settings.
Check fan operation
and service as required.
Consult your Hayter dealer.
Replace brake discs.
Consult your Hayter dealer.
TROUBLE SHOOTING Continued.