PROBLEM SOLVING 9
en-55
9
PROBLEM SOLVING
9.1 GENERAL ________________________________________________________________
The problem solving chart below lists basic problems that may occur during start-up and operation. For more detailed
information regarding the hydraulic and electrical systems contact your area Jacobsen Dealer.
Symptoms
Possible Causes
Action
Engine will not start.
1.
Parking brake switch OFF,
traction pedal not in neutral,
cruise control switch ON, or
PTO switch on.
1.
Check Interlock system and start-up procedure.
2.
Battery low on charge or
defective.
2.
Inspect condition of battery and battery
connections.
3.
Fuel tank empty or dirty. Fuel
shut off valve closed.
3.
Fill with fresh fuel. Change fuel filter. Bleed fuel
lines. Open fuel shut off valve.
4.
Circuit breaker blown.
4.
Reset circuit breaker.
Engine hard to start
or runs poorly.
1.
Fuel level low, fuel or fuel filter
dirty.
1.
Fill with fresh fuel. Change fuel filter. Bleed fuel
lines.
2.
Air cleaner dirty.
2.
Inspect and replace air filter.
3.
Injectors, fuel pump.
3.
Consult engine manual.
4.
Engine problem.
4.
Consult engine manual.
Engine stops.
1.
Fuel tank empty.
1.
Fill with fresh fuel and bleed fuel lines.
2.
Interlocks not set before
leaving operator’s seat.
2.
Engage parking brake, set PTO switch to OFF,
set cruise control switch to OFF, and traction
pedal in Neutral.
Engine overheating.
1.
Coolant level low.
1.
Inspect and add coolant.
2.
Air intake restricted.
2.
Clean cooling air intake.
3.
Water pump belt broken or
loose.
3.
Tighten or replace belt.
4.
Engine overload.
4.
Reduce forward speed.
Battery not holding
charge.
1.
Loose or corroded battery
terminals.
1.
Inspect and clean terminals.
2.
Low electrolyte.
2.
Refill to correct level.
3.
Alternator belt loose or broken. 3.
Tighten or replace belt.
4.
Charging system defective.
4.
See engine manual.
Mowers do not cut or
cut unevenly.
1.
Cutting units not fully lowered.
Lower cutting units to ground.
2.
Engine speed too low.
Check engine speed. Run engine at full throttle.
3.
Low hydraulic oil.
Check reservoir level and fill if needed.
Mower does not react
to traction pedal.
1.
Parking brake switch ON.
Turn parking brake switch OFF.
2.
Tow Valve Open.
Close Tow Valve.
3.
Low hydraulic oil.
Check reservoir level and fill if needed.
Implement does not
raise or lower.
1.
Low hydraulic oil.
Check reservoir level and fill as needed.
Gauges/Indicator not
operating.
1.
Circuit Breaker blown.
Reset circuit breaker, check bulb.
2.
Loose wiring.
Check electrical connections.
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