Zetor UTILIX HT Series Operator's Manual page 137

SYMPTOM
Engine is overheating
Reduced engine power
Engine
The oil indicator light
comes on when the
engine is running
The alternator indicator
light comes on when the
engine is running
136
FAULT TRACING
CAUSE
Lack of coolant
Broken or incorrectly set fan belt
Air filter plugged
Clogged radiator
Low oil level
Injectors are clogged, carbonated and
sticky
Low compression
Leaking valve
Incorrect valve clearance adjustment
Incorrect timing
Lack of fuel
Air filter plugged
Low oil level
Unsuitable oil
Indicator light or switch error
Oil filter plugged
Faulty wiring
Defective alternator
Low electrolyte level or defective
battery
Broken or loose fan belt
CORRECTIVE MEASSURE
Refill coolant
Set or replace
Clean or replace air filter
Clean the radiator fins
Refill the oil to the right level
Contact an authorized service
Contact an authorized service
Contact an authorized service
Contact an authorized service
Refill tank and check fuel
quality
Clean
Refill to correct level
Replace with correct oil
Replace defective part
Contact an authorized service
Contact an authorized service
Contact an authorized service
Add or replace
Replace or adjust