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277v40,44 - page 11 (Black)
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11
MAINTENANCE
CHANGING OIL FILTER
Change oil filter after every 100 hours or every season.
[1] Drain engine oil and remove oil filter.
[2] Before installing new filter, lightly oil filter gasket
with fresh, clean oil.
[3] Screw filter on by hand until gasket contacts oil
filter adapter. Tighten 1/2 to 3/4 turn more.
[4] Add fresh oil. Fill to FULL line on dipstick.
[5] Start and run engine at idle to check for leaks.
[6] Stop engine. Re-check oil level. Add oil if required.
OIL FILTER
P/N 492932 OR 5049
OIL PRESSURE
If oil pressure drops below 4-6 psi (.2-.4 kg/cm
2
), an oil
pressure switch (if engine is equipped) will either activate a
warning light or stop the engine. Check oil level with
dipstick. If oil level is between ADD and FULL mark on
dipstick, Do not try to restart engine. Contact an Authorized
Briggs & Stratton Service Dealer. Do not operate engine
until oil pressure is corrected.
If oil level is below ADD mark on dipstick, add oil to bring
level to FULL mark. Restart engine and check oil pressure.
If pressure is normal, continue to operate engine.
Note: Oil pressure gauge, if engine is equipped, is supplied
by manufacturer of equipment.
AIR CLEANER
All engines have an air cleaner cartridge. In addition, some
engines have a pre-cleaner.
CLEANING PRE-CLEANERS AND CARTRIDGES
CAUTION: Do not use pressurized air or solvents to
clean cartridge. Pressurized air can damage
cartridge; solvents will dissolve cartridge.
Pre-cleaner
To clean pre-cleaner (if equipped), separate it from
cartridge and wash in liquid detergent and water. Squeeze
dry in a clean cloth. Saturate in engine oil. Squeeze in
clean, absorbent cloth to remove all EXCESS oil.
Cartridge
To clean cartridge, gently tap pleated paper side on a flat
surface.
REMOVING AND INSTALLING AIR CLEANER
Dual element air cleaner
COVER
CARTRIDGE
PART NO. 499486
FOAM
PRE-CLEANER
PART NO. 273638
BASE
KNOB
[1] Unscrew knobs and remove cover.
[2] Carefully remove air cleaner cartridge and pre-clean-
er to prevent debris from entering carburetor.
[3] Reinstall clean (or new) pre-cleaner in base.
[4] Reinstall clean (or new) cartridge on pre-cleaner.
[5] Replace cover and tighten knobs securely.