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GB - 28
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
Engine will not
crank/start.
1. Fuel tank is empty.
2. Fuel shut-off valve
closed.
3. Engine shut off switch
turned off.
4. Engine ignition
problems.
1. Fill fuel tank.
2. Open fuel shut-off valve.
3. Turn on engine shut off switch.
4. See Engine Manual.
Engine stops.
1. Out of fuel.
2. Mechanical jam in
brush.
3. Polluted fuel supply.
4. Faulty spark plug.
1. Fill fuel tank.
2. Turn off engine and wait for all
moving parts to stop. Check for
and remove obstruction and repair
before restart.
3. Replace with clean fuel.
4. Replace or clean spark plug.
Engine problems.
1. See Engine Manual. 1. See Engine Manual.
Does not operate
in Forward/
Reverse.
1. Friction disc not
adjusted properly.
2. Traction belt not
functioning.
1. Repair or replace friction disc. See
Friction Disc Replacement on
page 26.
2. Repair or replace traction drive
belt. See Traction Drive Belt
Replacement on page 23.
Small rubber
beads collect in
frame
1. Friction disc wear. 1. Normal friction disc wear. Chunks
or large pieces of rubber mean
friction disc should be checked
and replaced as necessary.
U-joint is noisy
1. Friction.
2. Wear.
1. Lubricate u-joint.
2. Replace worn parts.
Caster wheels do
not pivot as
expected
1. Debris in casters.
2. Friction.
1. Clean debris from casters.
2. Lubricate casters.