Briggs & Stratton 3400PSI - Manual (Page 22)

22 BRIGGSandSTRATTON.COM
Service Air Cleaner
Your engine will not run properly and may be damaged if
you run it with a dirty air cleaner.
Service the air cleaner once every 25 hours of operation or
once each year, whichever comes first. Service more often if
operating under dirty or dusty conditions.
To service the air cleaner, follow these steps:
1. Loosen screw (A) and tilt cover (B) down.
2. Carefully remove cartridge (C) assembly.
3. To clean cartridge, gently tap pleated paper side on a
flat surface.
4. Reinstall clean or new cartridge assembly inside cover.
5. Insert cover’s tabs (D) into slots in bottom of base (E).
6. Tilt cover up and tighten screw securely to base.
Service Spark Plug
Change the spark plug every 100 hours of operation or once
each year, whichever comes first. This will help your engine
to start easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Check electrode gap with wire feeler gauge and set
spark plug gap to 0.030 inch (0.76 mm) if necessary.
4. Replace spark plug if electrodes are pitted, burned or
porcelain is cracked. Use the recommended
replacement plug. See Specifications.
5. Install spark plug and tighten firmly.
Spark Arrester Service
Your engine is not factory-equipped with a spark arrester. In
some areas, it is illegal to operate an engine without a spark
arrester. Check local laws and regulations. A spark arrester is
available from your nearest qualified service center.The spark
arrester must be serviced every 50 hours to keep it
functioning as designed.
If the engine has been running, the muffler will be very hot.
Allow the muffler to cool before servicing spark arrester.
• Remove spark arrester screen for cleaning and
inspection.
• Replace if screen is damaged.
Air Cooling System
Over time debris may accumulate in cylinder cooling fins and
cannot be observed without partial engine disassembly. For
this reason, we recommend you have a qualified service
dealer clean the cooling system per recommended intervals
(see Maintenance Schedule in beginning of Maintenance
section). Equally important is to keep top of engine free from
debris. See Clean Debris.
C
E
B A
D
WARNING
Contact with muffler area can result in serious
burns.
Exhaust heat / gases can ignite combustibles,
structures or damage fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (1.5 m) of clearance on all sides of pressure
washer including overhead.
• Code of Federal Regulation (CFR) Title 36 Parks, Forests, and
Public Property require equipment powered by an internal
combustion engine to have a spark arrester, maintained in
effective working order, complying to USDA Forest service
standard 5100-1C or later revision. In the State of California a
spark arrester is required under section 4442 of the California
Public resources code. Other states may have similar laws.