Gravely 992055 25HP PM160Z User Manual
Page 16
GB - 16
Interval
Task
Action
Each
Use
Check Safety Interlock System
WARNING: Safety interlock system failure and improper
operation of unit can result in death or serious injury.
Test this system each time the unit is operated. If this
system does not function as described, do not operate
until repairs are made. See Safety Interlock System on
page 12.
Check Parking Brake
Engage parking brake. Push unit. If unit rolls, adjust parking
brake (see PARKING BRAKE ADJUSTMENT on page 21).
Check Hydraulic Oil Level
See Check Hydraulic Fluid Level on page 17.
Check Tires
See SPECIFICATIONS on page 28 for correct tire pressure.
Clean Unit
Clean engine, battery, seat, mower deck, etc. of dirt and debris.
Do not use solvents, hard cleaners, or abrasives.
NOTE: Protect painted surfaces with automotive type wax.
Follow Engine Maintenance Schedule
Perform scheduled engine maintenance. Refer to Engine
Manual for detailed instructions.
Every 25
Hours
Check Mower Blades
Ensure mower blade hardware is tightened to 115 – 125 lbf-ft.
(156 – 169 N•m). Check mower blades for wear. Sharpen or
replace mower blades as needed (see Sharpen the Mower
Blades on page 18).
Every 50
Hours
Lubricate Front Axle and Pivot Points
Oil all pivot points, pin connections, and apply grease to front
axle grease zerk (see LUBRICATE UNIT on page 19).
Every
100
Hours
Clean Battery
Keep battery and battery terminals clean (see Clean Battery on
page 19).
Check Fasteners
Check mower blade mounting hardware and all other fasteners.
Replace missing or damaged fasteners. Tighten all nuts and
bolts to their correct torque value.
Check All Belts
Replace worn or deteriorated belts.
• Check mower drive belt. See Replacing Mower Belts on
page 22 for belt location.
• Check PTO belt. See Replacing Mower Belts on page 22
for belt location.
• Check transmission belt. See Replacing the Hydro Pump
Belt on page 22 for belt location.
Every
400
Hours
Grease Front Axle Castor Pivots
Repack front axle castor pivots (see LUBRICATE UNIT on
page 19).
Every
500
Hours
Change Hydraulic Oil and Filter