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TROUBLESHOOTING

1. ENGINE SYSTEM

TROUBLE PROBaBLE caUSE SOLUTION
• PTO switch set to ON position • Set the PTO switch to the OFF position
• Defective safety switch • Have it repaired or replaced by workshop
The start motor does • Battery discharged • Charge the battery
not run even when
turning the main • Loose terminal • Check for looseness and corrosion. Clean, tighten and apply
switch. grease
• Faulty switch • Have it repaired or replaced by workshop
• Defective start motor • Have it repaired or replaced by workshop
• Weak battery • Charge the battery
The start motor runs
Engine but its speed cannot • • Poor ground • • Clean the contact and connect the ground firmly
be increased
Change engine oil with proper viscosity
Incorrect viscosity of engine oil
• Air in fuel system • Bleed the system
• Clogged fuel filter • Clean or replace the filter
The start motor runs
but the engine cannot • No delivery of fuel • Open the cock to add fuel
be started
• Defective engine • Have it repaired by workshop
• Defective key stop unit • Have it repaired by workshop

• Air in fuel system • Bleed the system
The engine runs irregularly
• Clogged fuel filter • Clean or replace the filter

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