AIR FILTER
Your engine will not run properly using a dirty air filter. Service paper cartridge every two months or every 25 hours of operation, whichever occurs first.
Service paper cartridge more often under dusty conditions.
Replace the paper cartridge annually, or after every 100 hours of operation.
TO SERVICE CARTRIDGE
•Replace a dirty, bent, or damaged car-
tridge. Handle new cartridge carefully; do not use if the rubber seal is dam-
aged.
NOTE: Do not wash the paper cartridge or use pressurized air, as this will damage the cartridge.
1.Open door (A) on the blower housing to access the air cleaner element (B).
2.Unhook the latch (C) and remove the element.
3.Gently tap the paper element to dis- lodge dirt.
4.Clean all air cleaner components of any accumulated dirt or foreign mate- rial. Prevent any dirt from entering the throat of carburetor.
5.Install cleaned or new element on the base and secure with latch.
6.Close and latch the door.
CLEAN AIR SCREEN
Air screen must be kept free of dirt and chaff to prevent engine damage from
overheating. Clean with a wire brush or compressed air to remove dirt and stub- born dried gum fibers.
CLEAN AIR INTAKE/COOLING AREAS
To insure proper cooling, make sure the grass screen, cooling fins, and other exter-
nal surfaces of the engine are kept clean at all times.
Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and other cool- ing shrouds. Clean the cooling fins and external surfaces as necessary. Make sure the cooling shrouds are reinstalled.
NOTE: Operating the engine with a blocked grass screen, dirty or plugged cooling fins, and/or cooling shrouds removed will cause engine damage due to overheating.
MUFFLER
Inspect and replace corroded muffler and spark arrester (if equipped) as it could cre- ate a fire hazard and/or damage.
SPARK PLUG(S)
Replace spark plug(s) at the beginning of each mowing season or after every 100 hours of operation, whichever occurs
first. Spark plug type and gap setting are shown in "PRODUCT SPECIFICATIONS"
section of this manual.
IN-LINE FUEL FILTER
The fuel filter should be replaced once each season. If fuel filter becomes
clogged, obstructing fuel flow to carbu- retor, replacement is required.
1.With engine cool, remove filter and plug fuel line sections.
2.Place new fuel filter in position in fuel line with arrow pointing towards carbu- retor.
3.Be sure there are no fuel line leaks and clamps are properly positioned.
4.Immediately wipe up any spilled gaso-
line. Clamp _ | Clamp |
Fuel
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