4
Always invest igat e panel warning light s and t ripped circuit breakers and blown maxi fuse
Troubleshooting
Problem
Reason
Solution
Engine will not start
Isolator switch OFF
Switch on
FNR lever not in neutral
Shift to neutral
Emergency stop button pressed down
Release button upwards
Circuit breaker tripped
Reset (Push to reset)
Battery voltage too low
Check battery and connections
Faulty fuel supply
Check fuel level and connections
Electrical stop on fuel pump defective.
Check connections
Engine starts and stops
Blocked fuel or air filter
Replace fuel or air filter
Air in fuel system
Check fuel line connections
Black engine smoke
Air filter clogged (Indicator red).
Replace or clean air filter
Fuel system defect
Contact Thwaites dealer
Wrong fuel
Replace fuel and filter
Engine oil pressure
Low oil level
Top up engine oil
High engine temperature
Radiator choked
Clean radiator
Low coolant level
Top up coolant
Irregular alternator
Defective or loose alternator belt
Adjust, or, if necessary, replace the alternator belt
Automatic park brake remains applied Forward/reverse selected within 2 seconds of engine start
Select neutral and wait 2 seconds before re-selecting
forward/reverse
Warning buzzer sounds
Starting Machine with FNR lever in forward/reverse
Shift to neutral
Emergency stop button pressed down
Release button upwards
LED warning light on
Turn off ignition and investigate fault
