Troubleshooting - Gravely Pro-Master PM 320 HD Owner's/Operator's Manual

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PROBLEM
No sound
when ignition
key placed in
start position
Starter clicks
but engine
does not start
Engine
cranks but
does not start
Engine
continues to
run when
ignition key in
off position
Mower won't
engage

TROUBLESHOOTING

PROBABLE CAUSE
1. PTO engaged.
2. Directional control pedal
depressed.
3. Loose battery cables.
4. Discharged battery.
5. Blown fuse.
6. Neutral switch adjusted
improperly.
1. Discharged battery.
2. Battery cable corroded.
3. Starter damaged.
1. Fuel tank empty.
2. Bad spark plug.
3. Engine problem.
1. Ignition ground wire
disconnected.
2. Ignition switch failure.
1. Attachment blocked.
2. Bad PTO switch.
CORRECTION
1. Disengage PTO.
2. Place direction control pedal in
neutral.
3. Check connections. Tighten
battery cable clamps.
4. Recharge battery.
5. Replace fuse.
6. Adjust neutral switch per Service
and Adjustments.
1. Charge battery.
2. Clean battery connections.
3. See your dealer.
1. Fill fuel tank. See FILLING FUEL
TANK on page 15.
2. See engine manual.
3. See engine manual.
1. Connect ground wire to clean,
metal surface.
2. Replace ignition switch (see
Dealer).
1. Stop unit, remove key and clear
attachment.
2. Replace switch (see Dealer).
GB - 25

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