GB - 30
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTION
Engine will not
start, or fails to
keep running.
1. Fuel tank is empty.
2. Choke is OFF.
3. Air cleaner is plugged or dirty.
4. Spark plug wires are loose or
disconnected.
5. Spark plugs are failing.
6. Dirty fuel filter.
7. Fuel system is contaminated.
1. Fill tank with fuel.
2. Move choke lever to ON.
3. Clean or replace air cleaner element.
4. Seat wires to spark plug.
5. Install new spark plugs.
6. Replace fuel filter.
7. Contact dealer.
Starter does not
run or engine
turns slow.
1. Dead battery.
2. Corroded or loose electrical
connections.
3. Defective relay or switch.
1. Charge or replace the battery.
2. Check electrical connections for positive
contact.
3. Contact dealer.
Abnormal
vibration.
1. Engine mounting bolts are loose.
1. Tighten engine mounting bolts.
Engine
overheats.
1. Engine load is excessive.
2. Crankcase oil level is low or high.
3. Plugged cooling fins or air
passages. Low coolant (diesel).
1. Reduce ground speed.
2. Add or remove oil to crankcase.
3. Remove obstruction from cooling fins and
air passages. Add coolant (diesel).
Engine loses
power.
1. Engine load is excessive.
2. Air cleaner is plugged or dirty.
3. Crankcase oil level is low.
4. Engine overheating.
5. Spark plugs are failing.
6. Dirty fuel filter.
7. Fuel system is contaminated.
1. Reduce ground speed.
2. Clean or replace air cleaner element(s).
3. Add oil to crankcase.
4. Check airflow or coolant. Remove
obstruction from cooling fins and air
passages. Add coolant (diesel).
5. Install new spark plugs.
6. Replace fuel filter - gasoline.
Clean fuel filter - diesel.
7. Contact dealer.
Unit does not
drive
1. Hydraulic activator not engaged.
2. Parking brake engaged.
3. Hydraulic fluid level low.
4. Hydraulic pump disconnected from
engine crankshaft.
1. Engage hydraulic activator switch.
2. Disengage parking brake.
3. Contact dealer.
4. Check and repair any damaged parts.
Attachment runs
slowly
1. Not enough power to attachment
hydraulics.
2. Hydraulic oil cooler dirty.
1. Turn traction selector knob completely
clockwise.
2. Blow out oil cooler with compressed air.
Engine runs
roughly when
hydraulic
activator switch
is engaged.
1. Auxiliary hydraulic control is not in
neutral position.
1. Move auxiliary hydraulic control to neutral
position.
Engine smokes
while running.
1. Crankcase is overfilled.
2. Air cleaner dirty.
1. Drain crankcase oil to full mark.
2. Replace air cleaner.
Attachment
does not run
1. Parking brake engaged.
2. Hydraulic activator not engaged.
1. Disengage parking brake.
2. Engage hydraulic activator.
