Assembly; Unpack Air Compressor; Verify Engine And Pump Oil Levels; Add Fuel - Briggs & Stratton 203721GS Operator's Manual

Assembly

Unpack Air Compressor

1. Cut shipping straps from carton and discard.
2. Lift carton off unit.
3. Cut shipping straps from compressor and discard.
4. Roll compressor off shipping pallet.
Items in the carton include:
• Air Compressor
• Pump Oil Breather Cap
• Operator's Manual
If any of the above parts are missing or damaged, call the
helpline at (800) 743-4115.
Also recommended for use:
• Safety glasses (ANSI Z87.1 approved safety glasses
with side shields)
• Air hose - 25 ft (7.6 M), 3/8 inch diameter
• Quick connector fitting - Use type I/M quick connect
fittings that attach to 1/4 inch NPT thread
• Hearing protection (ANSI S3.19-1974) in noisy
environments
• Respirator (NIOSH-approved) in dusty environments
• Oil funnel
Your compressor is ready for use when:
Oil levels in pump and engine are verified
Pump oil breather cap is installed
Tire is properly inflated to 29 psi (2.0 bars)
Completed break-in procedure

Verify Engine and Pump Oil Levels

1. Place compressor on a flat, level surface.
2. See Checking Engine Oil Level in Maintenance section
to verify engine oil level.
3. See Checking Pump Oil Level in Maintenance section to
verify pump oil level.
NOTICE
Serious damage may result if operating the unit with
insufficient oil. Check oil level daily or with each use.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.

Add Fuel

Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane/87 AKI (91 RON). High
altitude use, see High Altitude.
• Gasoline with up to 10% ethanol (gasohol) or up to
15% MTBE (methyl tertiary butyl ether) is acceptable.
NOTICE
Avoid air compressor damage.
Failure to follow Operator's Manual for fuel
recommendations voids warranty.
• DO NOT use unapproved gasoline such as E85 or E22.
• DO NOT mix oil in gasoline.
• DO NOT modify engine to run on alternate fuels.
To protect the fuel system from gum formation, mix in a fuel
stabilizer when adding fuel. See Storage. All fuel is not the
same. If you experience starting or performance problems
after using fuel, switch to a different fuel provider or change
brands. This engine is certified to operate on gasoline. The
emission control system for this engine is EM (Engine
Modifications).
WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
WHEN ADDING FUEL
• Turn air compressor OFF and let it cool at least 2 minutes before
removing fuel cap. Loosen cap slowly to relieve pressure in
tank.
• Fill fuel tank outdoors.
• DO NOT overfill tank. Allow space for fuel expansion.
• If fuel spills, wait until it evaporates before starting engine.
• Keep fuel away from sparks, open flames, pilot lights, heat, and
other ignition sources.
• DO NOT light a cigarette or smoke.
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