Engine Faults - Zetor PRIMO HT 20 NC Operator's Manual

Engine Faults

FAULT
The engine runs
irregularly
Engine stops at
low speed
Engine
Engine overruns
Engine suddenly
stops
The engine is
overheated
120
TROUBLESHOOTING
PROBABLE CAUSE
Clogged injection

nozzle
Fuel leak from pipes

Poor fuel injection

quality
Defective injection

pump
Incorrect engine valve

play
Low idle speed

Defective nozzle

Limited regulator

Oil level increasing

Low fuel level

Defective nozzle

Engine seizures due to

insufficient oil or poor
lubrication
Insufficient coolant

amount
Damaged fan belt

Clogged radiator

Insufficient amount of

engine oil
SOLUTION
Have it repaired by an authorized

service
Tighten the clamp, replace the pipe

and attach the copper washer
Have it repaired by an authorized

service
Have it repaired by an authorized

service
Have it repaired by an authorized

service
Set to standard speed

Have it repaired by an authorized

service
Have it repaired by an authorized

service
Have it repaired by an authorized

service
Refuel and bleed the system

Have it repaired by an authorized

service
Have it repaired by an authorized

service
Refill coolant

Replace belt

Clean the radiator

Check and refill
