Gravely Pro-Master PM 320 HD - Troubleshooting

GB - 25
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
No sound
when ignition
key placed in
start position
1. PTO engaged.
2. Directional control pedal
depressed.
3. Loose battery cables.
4. Discharged battery.
5. Blown fuse.
6. Neutral switch adjusted
improperly.
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.
Starter clicks
but engine
does not start
1. Discharged battery.
2. Battery cable corroded.
3. Starter damaged.
1. Charge battery.
2. Clean battery connections.
3. See your dealer.
Engine
cranks but
does not start
1. Fuel tank empty.
2. Bad spark plug.
3. Engine problem.
1. Fill fuel tank. See FILLING FUEL
TANK on page 15.
2. See engine manual.
3. See engine manual.
Engine
continues to
run when
ignition key in
off position
1. Ignition ground wire
disconnected.
2. Ignition switch failure.
1. Connect ground wire to clean,
metal surface.
2. Replace ignition switch (see
Dealer).
Mower won’t
engage
1. Attachment blocked.
2. Bad PTO switch.
1. Stop unit, remove key and clear
attachment.
2. Replace switch (see Dealer).