GB - 18
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTION
Engine does not
start.
1. Operator presence lever not
engaged.
2. Fuel tank empty.
3. Faulty spark plug.
4. Air cleaner is plugged or dirty.
5. Fuel filter is dirty.
6. Faulty engine.
1. Engage the operator
presence lever.
2. Fill fuel tank (see FILLING
3. Replace spark plug. Refer to
Engine Manual.
4. Clean or replace air cleaner.
Refer to Engine Manual.
5. Clean or replace fuel filter.
Refer to Engine Manual.
6. Refer to Engine Manual or
see your Gravely Dealer.
PTO does not
engage or shuts
off.
1. Operator presence lever not
depressed.
2. Parking brake / clutch
engaged.
3. PTO switch was pulled out
when the engine was started.
1. Depress operator presence
lever.
2. Release parking brake /
clutch lever.
3. Reset PTO by pushing in the
PTO switch and then pulling
out on the switch.
Unit does not
drive.
1. Parking brake / clutch
engaged.
2. Transmission bypass levers
open.
3. Hydraulic oil level low.
4. Faulty hydraulic drive system.
1. Disengage parking brake /
clutch.
2. Close transmission bypass
levers (see Hydraulic Bypass
Valve on page 13).
3. Fill hydraulic system. See
Checking Hydraulic Oil Level
on page 17.
4. See your Gravely dealer.
ACCESSORIES
Part No.
Description
78511600
Electric Start Kit
88501500 44-Inch Power Brush
83300700 32-Inch Snow Throw
88500100 30-Inch Mower Deck
88500500 40-Inch Mower Deck
78510700 Two Wheel Tractor Attachment
Adaptor
88501400 48-Inch Blade
78511700
Car Pusher
00592900 Fuel Stabilizer 4 oz.
SERVICE PARTS
Part No.
Qty
Description
08690800
1
Air Filter
08690100
1
Spark Plug
08690600
1
Hydraulic Oil Filter