Gravely 915170 ZT 42 CARB Owner's/Operator's Manual page 21

Interval Task
Each Use Follow
Engine
Manual
Mainten-
ance
Schedule
25 Hours Check
or Every Battery
Season
Lubricate
Unit
50 Hours Check
or Every Fasteners
Season
100 Hours Check All
or Every Belts
Season
Action
Perform scheduled engine maintenance.
Refer to Engine Manual for detailed
instructions.
NOTE: To drain the oil, remove oil drain
cap and attach the oil drain hose,
supplied in the lit pack, to the drain plug.
Rotate the drain to the left to allow oil to
drain. Turn the drain to the right to close.
Keep battery and battery terminals clean. See "Cleaning Battery and
Battery Cables" on page 27.
1. Apply grease to zerk (1) on each front wheel.
2. Apply grease to quick adjust seat mechanism through slots (2) on
bottom side of seat plate. Work grease into mechanism by sliding
seat back and forth repeatedly.
Check mower blade mounting hardware and all other fasteners.
Replace fasteners that are missing or damaged. Tighten all nuts and
bolts to the correct torque values.
Replace worn or deteriorated belts.
• Check hydrostatic belt. See "REPLACING HYDROSTATIC
BELT" on page 30 for hydrostatic belt location.
• Check PTO belt. See "REPLACING PTO BELT" on page 29 for
PTO belt location.
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EN - 21
Oil Drain Plug