C-76
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
Probable Cause Remedy
Piston and Cylinder Sleeve Wear
1. Oil of unsuitable grade of viscosity - - - - - - - - - - Use oil meeting operator’s manual / specifications.
2. Piston rings stuck or broken - - - - - - - - - - - - - - - Install new rings.
3. Lack of oil - - - - - - - - - - - - - - - - - - - - - - - - - - - - Keep oil at proper level.
4. Foreign materials entering engine - - - - - - - - - - - Inspect and service air cleaner. Proper care of air
cleaner is very important.
5. Piston rings not fitter properly to cylinder- - - - - Install new rings and fit properly.
6. Dirty containers used for lubricating oil - - - - - - Lubricating oil must be kept in a clean place and
clean containers used when filling engines.
Improper Fuel Pressure
1. Fluctuating fuel pressure - - - - - - - - - - - - - - - - - Inspect fuel injection pump.
2. Fuel pressure too low - - - - - - - - - - - - - - - - - - - - Check for clogged fuel filter, lines and defective fuel
injection pump.
3. Air leaks on suction side of injection pump- - - - Tighten fuel lines. Check for defective fuel filter case
gaskets.
Low Engine RPM
1. Governor control linkage binding or damaged - Repair and install new parts needed.
2. Governor control rod improperly adjusted- - - - - Adjust rod to proper length.
Low Fuel Pressure
1. Dirty fuel filters - - - - - - - - - - - - - - - - - - - - - - - - Replace filters.
2. Broken fuel lines - - - - - - - - - - - - - - - - - - - - - - - - Repair or install new line.
3. Clogged line - - - - - - - - - - - - - - - - - - - - - - - - - - - Clean or install new line.
4. Improper grade of fuel - - - - - - - - - - - - - - - - - - - Use correct fuel
5. Air leaks on suction side of injection pump- - - - Tighten fuel lines. Check for defective fuel filter case
gaskets.
Trouble Shooting
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