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