Gravely ZT Sport Owner's/Operator's Manual page 23

PROBLEM
1. Operator presence switch not
2. Operator presence switch wires
3. Faulty operator presence switch.
PTO or
4. Electric clutch connector is loose or
mower
blade(s) does
not engage
5. Faulty PTO belt or a faulty mower
or shuts off.
6. Faulty PTO switch, wires,
1. Engine oil level low.
Engine 2. Cooling system plugged.
overheats.
3. Faulty engine.
Unit moves 1. Parking brake needs adjustment.
with engine
2. Faulty parking brake.
off and
parking
brake
engaged.
NOTE: Unit should track within 2 feet
(0.61 m) of a straight line for 30 feet
(9.14 m).
Unit does not
travel in a
1. Incorrect tire pressure.
straight line.
2. Hydrostatic transmission and/or
1. Mower deck not level or mower
Poor cutting
2. Dull or faulty mower blades.
quality.
PROBABLE CAUSE
depressed.
disconnected.
disconnected.
belt on 40-inch decks.
connectors, or clutch.
linkage needs adjustment.
deck pitch is incorrect.
1. Depress operator presence switch
by sitting on seat.
2. Connect operator presence switch
wires. See figure 20 on page 18 for
location of wires.
3. Contact your Gravely Dealer.
4. Connect electric clutch connector.
See figure 9 on page 14 for
connector location.
5. Replace PTO belt (see PTO Belt
Replacement on page 21) or
replace mower belt on 40-inch
decks (see Mower Belt
Replacement (915032) on
page 20).
6. Contact your Gravely Dealer.
1. Add engine oil. Refer to Engine
Manual for detailed instructions.
2. Clean cooling system. Refer to
Engine Manual for detailed
instructions.
3. Contact your Gravely Dealer.
1. Contact your Gravely Dealer.
2. Contact your Gravely Dealer.
1. Check tire pressure (see
Specifications on page 24).
2. Contact your Gravely Dealer.
1. Level mower deck or adjust mower
deck pitch (see Leveling Mower
Deck and Adjusting Mower Deck
Pitch on page 14).
2. Sharpen mower blades (see
Sharpening Mower Blade on
page 17) or replace mower blades
(see Mower Blade Replacement on
page 16).
GB - 23
CORRECTION