Briggs & Stratton 303700, 294700, 350700, 290700 AIR Cleaner, Changing OIL Filter, OIL Pressure

MAINTENANCE

CHANGING OIL FILTER

Change oil filter after every 100 hours or every season.

OIL FILTER P/N

SEE PAGE 15

[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 PRESSURE

If oil pressure drops below 1-4 psi (.1-.2 kg/cm2), an oil pressure switch (if engine is equipped) will either activate a warning device 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 a round 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 on a flat surface.

REMOVING AND INSTALLING AIR CLEANER

FOAM

PRE-CLEANER

PART NO. 272490

PRE-CLEANER and CARTRIDGE PART NO. 5050

CARTRIDGE

PART NO. 394018

PLATE

KNOB

COVER

CLIPS

Dual element air cleaner

[1]Unhook clips on both sides of cover and remove cover.

[2]Remove knob and plate. Carefully remove air cleaner assembly to prevent debris from entering carburetor.

[3]Reassemble clean (or new) pre-cleaner on clean (or new) cartridge.

[4]Reinstall air cleaner assembly, plate and knob in body.

[5]Replace cover and reattach clips to body.

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