Gravely Promaster 260Z Service Manual page 43

PROBLEM
Unit does not drive.
TROUBLESHOOTING
PROBABLE CAUSE
1. Parking brake engaged.
2. Transmission bypass levers
open.
3. Hydraulic oil level low.
4. Faulty hydraulic drive system.
43
CORRECTION
1. Disengage parking brake.
2. Close transmission bypass
levers (see Moving Unit Manually
on page 16).
3. Add hydraulic oil (see Checking
Hydraulic Oil Level on page 26).
4. See your Gravely dealer.