Troubleshooting - Gravely Promaster 144 Owner's/Operator's Manual

PROBLEM
Engine does
not crank.
Engine cranks
but does not
start.
Battery light
does not light
up when
starting
engine.
Oil pressure
light is on.
Engine
continues to
run when
ignition key is
in the off
position.
PTO or mower
blades do not
engage or shut
off.
Unit does not
drive.

TROUBLESHOOTING

PROBABLE CAUSE
1. PTO engaged.
2. Parking brake disengaged.
3. Loose or corroded battery
cables.
4. Discharged battery.
5. Faulty starter.
1. Fuel tank empty.
2. Faulty spark plug.
3. Air cleaner is plugged or
dirty.
4. Fuel filter is dirty.
5. Faulty engine.
1. Discharged battery.
1. Oil pressure is low.
1. Ignition ground wire
disconnected.
2. Ignition switch failure.
1. Operator presence switch
not depressed.
2. Faulty PTO switch.
1. Parking brake engaged.
2. Transmission bypass levers
open.
3. Hydraulic oil level low.
4. Faulty hydraulic drive
system.
CORRECTION
GB - 30
1. Disengage PTO.
2. Engage parking brake.
3. Clean and tighten battery
cables (see Clean Battery
on page 20).
4. Charge battery (see
Charging the Battery on
page 21).
5. See your Gravely Dealer.
1. Fill fuel tank (see FILLING
FUEL TANK on page 13).
2. Replace spark plug. Refer
to Engine Manual.
3. Clean or replace air cleaner.
Refer to Engine Manual.
4. Clean or replace fuel filter.
Refer to Engine Manual.
5. Refer to Engine Manual or
see your Gravely Dealer.
1. Charge battery (see
Charging the Battery on
page 21).
1. Refer to Engine Manual.
1. Connect ground wire to
clean metal surface.
2. Replace ignition switch (see
your Gravely Dealer).
1. Depress operator presence
switch by sitting on seat.
2. Check the electrical system
to the clutch for damage or
wear. See your Gravely
Dealer.
1. Disengage parking brake.
2. Close transmission bypass
levers (see MOVING THE
UNIT WITH THE ENGINE
OFF on page 14).
3. Add hydraulic oil (see
Check Hydraulic Fluid Level
on page 18).
4. See your Gravely dealer.