X. TROUBLESHOOTING
67
Troubles
Presumable causes
Remedies
• Engine output is insufficient.
• No fuel
• Clogged air cleaner
• Engine is overloaded.
• Improper fuel
• Engine is overheated.
• Throttle lever is not in the high
speed (
r
) position.
• Insufficient compression
• Improper valve clearances
• Defective injection pump
• Defective injection nozzles
• Incorrect injection timing
• Replenish with fuel.
• Clean element.
• Raise cutting height or slow down
lawn mower.
• Use proper diesel fuel.
• Cool down engine.
• Set it there securely.
• Consult your dealer.
• Consult your dealer.
• Consult your dealer.
• Consult your dealer.
• Consult your dealer.
• Engine is overheated.
• Low engine coolant level
• Loose fan belt
• Clogged radiator fins and screen
• Low engine oil level
• Clogged air-intake openings
• Engine is overloaded.
• Clogged engine oil filter
• Burnt out coolant temperature
warning lamp
• Replenish
• Tighten it properly.
• Clean them.
• Replenish engine oil to upper limit.
• Clean air-intake screens.
• Raise cutting height or slow down
lawn mower.
• Ask your dealer to replace it with a
new one.
• Consult your dealer.
• Engine oil pressure warning
lamp
illuminates.
• Low engine oil level
• Low engine oil viscosity
• Clogged engine oil filter
• Defective oil pump
• Defective oil pressure switch
• Add oil to upper limit.
• Replace with oil of higher viscosity.
• Ask your dealer to replace it with a
new one.
• Consult your dealer.
• Consult your dealer.
• Exhaust fumes are white.
• Clogged air cleaner
• Too high engine oil level
• Insufficient fuel injection
• Clean element.
• Drain oil to upper limit.
• Consult your dealer.
• Exhaust fumes are black.
• Defective
• Clogged intake system
• Clogged exhaust system
• Excessive fuel injection rate
• injection nozzle pressure
• Incorrect injection timing
• Use proper fuel.
• Clean air cleaner element.
• Check muffler for clogging and
clean it.
• Consult your dealer.
• Consult your dealer.
• Consult your dealer.
• Engine stalls at low speed.
• Defective injection pump
• Defective injection nozzles
• Incorrect valve clearance
• Consult your dealer.
• Consult your dealer.
• Consult your dealer.
• Engine races.
• Clogged governor
• Engine oil leaks into cylinder.
• Consult your dealer.
• Consult your dealer.
Summary of Contents for SBC550X
Page 71: ...SXG 70 ...
Page 72: ...XI ELECTRIC WIRING 71 XI ELECTRIC WIRING E TYPE ...
Page 73: ...72 SXG GE TYPE ...
Page 103: ...SBC600XH SBC550XL 102 ...