SYMPTOM CAUSE REMEDY
Engine power output is low.
Excessive load for engine
horsepower rating.
Reduce load on unity by reducing ground speed.
Operating engine at high altitude.
De-rate engine power output for altitudes above
10,000 feet (305 meters).
Air intake piping restricted. Remove restrictions.
Air cleaner element(s) dirty. Clean or replace air cleaner element(s).
Fuel suction line or lter
restricted.
Check fuel line for restrictions.
Replace fuel lter.
Poor quality fuel. Verify by operating with a fuel of known quality.
Fuel return system restricted. Correct restricted fuel return system.
Fuel quality poor. Verify by operating with a known fuel quality.
Fuel transfer pump
malfunctioning.
Replace fuel transfer pump.
Refer to Engine Operator’s Manual.
Throttle improperly adjusted. Adjust throttle controls.
Fuel injector malfunctioning.
Replace fuel injector.
Refer to Engine Operator’s Manual.
Engine oil pressure is low.
Electrical power not being
supplied to gauge.
Check fuses.
Oil level too high or too low.
Check for leaks. Add or drain engine oil. Check
dipstick calibration.
Oil lter plugged. Change oil and replace oil lter.
Oil diluted with fuel.
Replace fuel injector, fuel transfer pump and/or
injection pump.
Oil pressure sender or gauge
malfunctioning.
Replace oil pressure sender or gauge.
Machine “jerks” when
moving forward or reverse.
Fast movement of joystick from
neutral.
Move joystick slowly in either direction.
Park brake not fully disengaged. Disengage park brake.
Engine speed set too low. Operate engine at maximum RPMs.
Air leaking into hydraulic system. Tight or replace hoses, ttings or lter.
Hydrostatic pump malfunction. Repair or replace pump.
Low hydraulic oil. Fill hydraulic tank to proper level.
Steering is difcult.
Low hydraulic uid level. Add hydraulic oil.
Hydraulic tank return lters
contain contamination.
Check lters for contamination and clean or
replace.
Hydraulic pump priority relief
valve set incorrectly.
Check relief valve setting. It should be 1500 PSI.
Adjust setting if necessary.
Worn hydraulic pump. Repair or replace.
Worn steering orbital motor. Repair or replace.
Worn steering cylinder. Repair or replace.
Maintenance
Rosco CSV Variable Width Chip Spreader5-30
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