Gravely 988100, Owner'S/Operator'S Manual

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GB-16
*
Change oil after first 8 hours of operation and every 100
hours thereafter.
MAINTENANCE SCHEDULE
Period Service Task
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 Check Safety Interlock System on page 10.
Check Air Cleaner Check the air cleaner element before each use. See engine manual for
detailed instructions.
Check Engine Oil Check the engine oil level before each use. Never operate the engine when
the oil level is low. See engine manual for detailed instructions.
Check Engine Cooling Check the engine air cooling system before each use. See engine manual for
detailed instructions.
Check Fasteners Check all nuts, bolts, and other fasteners before each use. Replace missing
or damaged fasteners.
Check Tire Pressure Check tires for proper inflation, excessive wear or damage before each use.
The correct air pressure is 8 to 16 psi (55 to 110 kPa).
Follow Engine Manual
Maintenance Schedule Perform scheduled engine maintenance. See engine manual for detailed
instructions.
Every 25
Hours
Check All Belts Check all belts for wear or damage. If belts slip, check for damaged belt
tensioner.
Mower Blades Check mower blades for wear. Sharpen or replace as needed. See Mower
Blades on page 21.
Clean Air Cleaner Foam
Element See engine manual for detailed instructions.
Every 50
Hours General Lubrication Oil all pivot points and pin connections. Grease lube fittings. See General
Lubrication on page 17.
Every 100
Hours
Change Engine Oil
* Open the petcock to drain oil through oil drain hole on the left side of engine.
See engine manual for additional instructions.
Check Fuel Filter See engine manual for detailed instructions.
Check Spark Plug See engine manual for detailed instructions.
Check Muffler Check muffler for damage or wear. Replace if necessary.
Clean Air Cleaner Paper
Element See engine manual for detailed instructions.