Maintenance Schedule - Gravely 915170 ZT 42 CARB Owner's/Operator's Manual

WARNING: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
IMPORTANT: Proper maintenance can
prolong the life of unit. The following chart
shows the recommended service schedule.
Refer to the maintenance instructions in the
Engine Manual for additional information.
Interval Task
Each Use Check
Safety
Interlock
System
Check
Parking
Brake
Clean
Unit
Check
Tires
Check
Mower
Blades

MAINTENANCE SCHEDULE

Action
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. "Safety Interlock System" on page 14
Engage parking brake and engage transmission bypass lever. See
"MOVING UNIT MANUALLY" on page 19. Push unit. If unit rolls,
contact your Gravely dealer.
Clean engine, battery, seat, etc. of all dirt and debris. Do not use
solvents, hard cleaners, or abrasives. For deck cleaning instructions
see "Washout Port" on page 16.
NOTE: Protect painted surfaces with automotive type wax.
IMPORTANT: Do not spray the unit with water, especially when the
unit is warm from operation.
See "SPECIFICATIONS" on page 34 for correct tire pressure.
CAUTION: Avoid injury! Explosive separation of tire and rim
parts is possible when they are serviced incorrectly:
• Do not attempt to mount a tire without the proper equipment
and experience to perform the job.
• Do not inflate the tires above the recommended pressure.
• Do not weld or heat a wheel and tire assembly. Heat can cause
an increase in air pressure resulting in an explosion. Welding
can structurally weaken or deform the wheel.
• Do not stand in front or over the tire assembly when inflating.
Use a clip-on chuck and extension hose long enough to allow
you to stand to one side.
Check for worn or damaged mower blades. See "SHARPENING
MOWER BLADE" on page 24.
NOTE: To have full access to the engine, the
seat must be tipped forward "TIPPING SEAT
FORWARD" on page 22 and the hood
opened "MOWER DECK REMOVAL AND
INSTALLATION" on page 22.
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