EN - 42
TROUBLESHOOTING
Problem Probable Cause Correction
Engine does not
start.
PTO switch is in the on position.
Push PTO switch down to off
position. See Power Take-off (PTO)
Switch on page 16.
Parking brake is released.
Engage parking brake. See Parking
Brake Lever on page 18.
Fuel tank is empty. Fill fuel tank. See Before Operation
on page 18.
Fuel supply is contaminated. Replace with clean fuel.
Battery is not charged. Charge battery. See Charge Battery
on page 29.
Battery cables are loose or
corroded.
Clean and tighten cables. See Clean
Battery on page 28.
Spark plug wire(s) are loose or
spark plug(s) are faulty.
Connect spark plug wire(s) or
replace spark plug(s). Refer to
engine manual.
Safety Interlock System is not
engaged or is faulty.
Check Safety Interlock System. See
Before Operation on page 18.
Electrical system is faulty. Contact your Gravely dealer.
Engine is faulty. Contact your Gravely dealer.
Engine runs rough.
Choke control lever is engaged.
(Models 991128, 991129,
991130, 991132, 991133,
991137, 991138, 991139,
991140)
Move lever to off position. See
Choke Control Lever on page 16.
Fuel tank is empty. Fill fuel tank. See Before Operation
on page 18.
Spark plug is faulty. Replace spark plug. Refer to engine
manual.
Fuel filter is dirty. Clean or replace filter. Refer to
engine manual.
Air filter cartridge is plugged. Clean or replace air filter cartridge.
Refer to engine manual.
Engine is faulty. Contact your Gravely dealer.
Engine overheats.
Engine oil level is low. Add engine oil. Refer to engine
manual.
Cooling fins are plugged. Clean engine. Refer to engine
manual.
Engine is faulty. Contact your Gravely dealer.
Engine runs when
ignition key is in the
off position.
Ignition ground wire is
disconnected.
Connect ground wire to clean, metal
surface.
Ignition switch is faulty. See your Gravely dealer.
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