GB - 26
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 13).
2.
Fuel tank empty.
2.
Fill fuel tank (see FILLING FUEL TANK on
page 14).
3.
Discharged
battery.
3.
Charge battery (see Charging the Battery
on page 23).
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 22).
5.
Spark plug wire(s)
loose or spark
plug(s) faulty.
5.
Connect spark plug wire(s) or replace spark
plug(s). 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 cartridge
plugged.
2.
Clean or replace air filter cartridge. Refer to
Engine Manual for detailed instructions.
3.
Faulty engine.
3.
Contact your Gravely Dealer.
Unit does not
move with
engine running
when using
steering levers.
1.
The transmission
bypass lever is
engaged.
1.
Disengage transmission bypass lever (see
MOVING UNIT MANUALLY on page 15).
2.
Faulty hydrostatic
belt.
2.
Replace hydrostatic belt (see REPLACING
HYDROSTATIC BELT on page 25).
3.
Faulty
transmission.
3.
Contact your Gravely Dealer.
PTO or mower
blades do 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
or disconnected.
3.
Connect the electric clutch connector. See
REPLACING HYDROSTATIC BELT on
page 25 for the electric clutch connector
location.
4.
Faulty PTO belt.
4.
Replace PTO belt (see REPLACING PTO
BELT on page 24).
5.
Faulty PTO
switch, wires,
connectors, or
clutch.
5.
Contact your Gravely Dealer.
