GB - 23
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTION
Engine will
not
crank/start.
1.
Safety interlock system is not
engaged or is faulty.
1.
Check safety interlock system (see
Safety Interlock System
on
page 9).
2.
Fuel tank empty.
2.
Fill fuel tank.
3.
Discharged battery.
3.
Charge battery (see
Charging the
Battery
on page 20).
4.
Poor connection between battery
and battery cables.
4.
Tighten battery cables and/or clean
battery and battery cables (see
Cleaning Battery and Battery
Cables
on page 20).
5.
Spark plug wire loose or spark plug
faulty.
5.
Connect spark plug wire or replace
spark plug. Refer to Engine Manual
for detailed instructions.
6.
Faulty electrical system.
6.
Contact your Gravely Dealer.
7.
Faulty engine.
7.
Contact your Gravely Dealer.
Engine
runs
rough.
1.
Choke engaged.
1.
Disengage choke.
2.
Air filter plugged.
2.
Clean or replace air filter. Refer to
Engine Manual for detailed
instructions.
3.
Faulty engine.
3.
Contact your Gravely Dealer.
Unit does
not move
with engine
running
when using
forward and
reverse
pedal.
1.
Transmission bypass lever is
engaged.
1.
Disengage transmission bypass
lever (see
Moving The Unit
Manually
on page 11).
2.
Faulty hydrostatic belt.
2.
Replace hydrostatic belt (see
Hydrostatic Belt Replacement
on
page 21).
3.
Faulty transmission.
3.
Contact your Gravely Dealer.
PTO or
mower
blade(s)
does not
engage or
shuts off.
1.
Operator presence switch not
depressed.
1.
Depress operator presence switch
by sitting on seat.
2.
Faulty operator presence switch.
2.
Contact your Gravely Dealer.
3.
Electric clutch connector is loose.
3.
Connect electric clutch connector.
See figure 9 on page 15 for
connector location.
4.
Faulty PTO belt or a faulty mower
belt on the 40-inch decks.
4.
Replace PTO belt (see
PTO Belt
Replacement
on page 21) or
replace mower belt on the 40-inch
decks (see
Mower Belt
Replacement (927064)
on
page 22).
5.
Faulty PTO switch, wires,
connectors, or clutch.
5.
Contact your Gravely Dealer.
Engine
overheats.
1.
Engine oil level low.
1.
Add engine oil. Refer to Engine
Manual for detailed instructions.
2.
Cooling system plugged.
2.
Clean cooling system. Refer to
Engine Manual for detailed
instructions.
3.
Faulty engine.
3.
Contact your Gravely Dealer.
