SECTION IX FAULT DIAGNOSIS
SECTION 9 - Fault diagnosis
Engine
Engine fails to turn over when starter operated
–
Check battery charge level:
•
If discharged, re-charge, otherwise clean the terminals and check
that the battery is properly installed.
–
Faulty starter motor; have the defective parts replaced by an auto
electrician.
Engine difficult to start, or fails to re-start once stopped
–
Check fuel level; inspect fuel filter and renew if necessary.
–
Injection system faulty:
•
Check for air in the fuel system and bleed if necessary. If the prob-
lem persists, check the calibration of the injection pump and the in-
jectors.
–
Check the thermostarter; clean or replace as necessary.
–
Poor compression: (operations to be carried out by a specialised ser-
vice centre only) check the valve clearances (0.2 mm/0.008 in - for en-
gine with air cooling system - 0.3 mm/0.012 in - for engine with water
cooling system). Inspect the valves and grind or replace as necessary.
Check head gasket and piston rings. If necessary, replace pistons and
cylinder liners.
White smoke from exhaust
–
Check injection pump timing (operation to be carried out by a special-
ised service centre). Check valve stem to valve guide clearance. If the
problem persists, check piston rings and cylinder liners for wear and
replace if necessary.
–
Inspect injectors (operation to be carried out by a specialised service
centre).
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CAUTION: CAREFULLY READ ALL SAFETY INSTRUCTIONS CON
-
TAINED IN THE OPERATING AND MAINTENANCE HANDBOOK AND
FOLLOW THE INSTRUCTIONS LISTED ON THE TRACTOR’S DE
-
CALS.
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