Gravely ZT X Operator's Manual page 30

Problem Probable Cause
Unit creeps
when steering
Transmission and/or linkage
levers are in
need adjustment.
neutral
position.
Mower blades not level or mower
deck pitch is incorrect.
Mower blades are dull or faulty.
Poor cutting
Mowing speed is too fast.
quality.
Belt tension or condition is poor.
Cutting height is too low.
TROUBLESHOOTING
EN - 28
Correction
Contact your Gravely dealer.
Level and adjust pitch of mower deck.
Refer to your unit's service manual.
Sharpen or replace mower blades. Refer
to your unit's service manual.
Drive slower when cutting grass.
Replace deck drive belt. Refer to your
unit's service manual.
Do not set height of cut too low. For very
tall grass, mow twice.