Gravely ZT User Manual

GB - 24
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 tanks empty. 2. Fill fuel tanks (see FILLING FUEL
TANKS on page 12).
3. Fuel shut-off valve closed. 3. Open fuel shut-off valve.
4. Discharged battery. 4. Charge battery (see Charging the
Battery on page 21).
5. Poor connection between battery
and battery cables.
5. Tighten battery cables and/or
clean battery and battery cables
(see Cleaning Battery and Battery
Cables on page 20).
6. Spark plug wire(s) loose or spark
plug(s) faulty.
6. Connect spark plug wire(s) or
replace spark plug(s). Refer to
Engine Manual for detailed
instructions.
7. Faulty electrical system. 7. Contact your
Gravely Dealer.
8. Faulty engine. 8. 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 13).
2. Faulty hydrostatic belt. 2. Replace hydrostatic belt (see
REPLACING HYDROSTATIC
BELT on page 23).
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 23 for the electric clutch
connector location.
4. Faulty PTO belt. 4. Replace PTO belt (see
REPLACING PTO BELT 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.

Gravely ZT Specifications

General

Engine Brand	Kawasaki
Transmission Type	Hydrostatic
Deck Material	Steel
Deck Type	Fabricated
Turning Radius	Zero-turn
Cutting Width	52 in