Troubleshooting - Gravely 915140 Owner's/Operator's Manual

PROBLEM
Engine will not
crank/start.
Engine runs
rough.
Unit does not
move with
engine running
when using
steering levers.
PTO or mower
blades do not
engage or shut
off.

TROUBLESHOOTING

PROBABLE
CAUSE
1. Safety interlock
system is not
engaged or is
faulty.
2. Fuel tank empty.
3. Discharged
battery.
4. Poor connection
between battery
and battery
cables.
5. Spark plug wire(s)
loose or spark
plug(s) faulty.
6. Faulty electrical
system.
7. Faulty engine.
1. Choke engaged.
2. Air filter cartridge
plugged.
3. Faulty engine.
1. The transmission
bypass lever is
engaged.
2. Faulty hydrostatic
belt.
3. Faulty
transmission.
1. Operator
presence switch
not depressed.
2. Faulty operator
presence switch.
3. Clutch actuator is
loose or
disconnected.
4. Faulty PTO belt.
5. Faulty PTO
switch, wires,
connectors, or
clutch.
CORRECTION
1. Check safety interlock system (see Safety
Interlock System on page 12).
2. Fill fuel tank (see FILLING FUEL TANK on
page 13).
3. Charge battery (see Charging the Battery
on page 23).
4. Tighten battery cables and/or clean battery
and battery cables (see Cleaning Battery
and Battery Cables on page 23).
5. Connect spark plug wire(s) or replace spark
plug(s). Refer to Engine Manual for detailed
instructions.
6. Contact your Gravely Dealer.
7. Contact your Gravely Dealer.
1. Disengage choke.
2. Clean or replace air filter cartridge. Refer to
Engine Manual for detailed instructions.
3. Contact your Gravely Dealer.
1. Disengage transmission bypass lever (see
MOVING UNIT MANUALLY on page 15).
2. Replace hydrostatic belt (see REPLACING
HYDROSTATIC BELT on page 26).
3. Contact your Gravely Dealer.
1. Depress operator presence switch by sitting
on seat.
2. Contact your Gravely Dealer.
3. Connect wiring to PTO actuator.
Properly connect PTO actuator cable to the
deck cable anchor or to deck idler arm.
4. Replace PTO belt (see REPLACING PTO
BELT on page 25).
5. Contact your Gravely Dealer.
GB - 27