Gravely ZT 34 User Manual

EN - 33
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 16.
2. Fuel tank is empty. 2. Fill fuel tank. See Filling Fuel Tank on
page 18.
3. Discharged battery. 3. Charge battery. See Charging the
Battery on page 28.
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 28.
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 20.
2. Faulty hydrostatic belt. 2. Replace hydrostatic belt. See
Replacing Hydrostatic Belt on page 31.
3. Faulty transmission. 3. Contact your Gravely dealer.
PTO or mower
blades do not
engage or shut
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. Faulty PTO belt. 3. Replace PTO belt. See Replacing PTO
Belt on page 30.
4. Faulty PTO switch,
wires, connectors, or
clutch.
4. 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.
Unit moves with
engine off and
parking brake
engaged.
1. The parking brake
needs adjustment.
1. Contact your Gravely dealer.
2. Faulty parking brake. 2. Contact your Gravely dealer.

Gravely ZT 34 Specifications

General

Brand	Gravely
Model	ZT 34
Category	Lawn Mower
Language	English