Craftsman 247.887330 - Manual (Page 14)

SERVICE AND MAINTENANCE
A
warning
Always stop engine, disconnect spark plug, and ground against
engine before performing any type of maintenance on the mower.
I
GENERAL RECOMMENDATIONS
• Always observe safety rules when performing any type of
maintenance on the mower.
• The warranty on this lawn mower does not cover items that have
been subjected to operator abuse or negligence. To receive full
value from warranty, operator must maintain the lawn mower as
instructed in this manual.
• Changing of engine-governed speed will void engine warranty.
• All adjustments should be checked at least once each season.
• Periodically check all fasteners and make sure they are tight.
ENGINE MAINTENANCE
Checking the Spark Plug
Clean spark plug and reset the electrode gap to 0.030” at least once a
season; replace every 100 hours of operation.
1
.
2
.
Clean area around the spark plug base. Do not sandblast spark
plug. Spark plug should be cleaned by scraping or wire brushing
and washing with a commercial solvent
Remove and inspect the spark plug. Check gap to make sure it is
set at .030”. See Figure 9.
Replace the spark plug it electrodes are pitted, burned, or the
porcelain is cracked.
Servicing the Air Cleaner
A warning
If filters, or covers are not installed correctly serious injury or death
could result from backfire. Do not attempt to start the engine with
them removed.
A CAUTION
Do not use pressurized air or solvents to clean the air cleaner
cartridge.
Clean or replace the air cleaner every 25 hours of operation.
1. Pull upon air cleaner handle. Figure 10, and pull back towards the
engine.
2. Remove the air cleaner cover. Figure 10.
Carefully remove air cleaner cartridge and pre-cleaner (it
equipped) from the blower housing.
Clean the base of the air cleaner cartridge carefully to prevent
debris from entering the engine.
Place the pre-cleaner, if equipped, and cartridge back into the
blower housing. The cartridge must be placed securely into
position.
Align tabs on cover with slots in blower housing and replace the
cover.
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