Craftsman 921.16475 Cleaning the AIR Filter, Checking the Relief Valve, Testing for Leaks, Hours

CLEANING THE AIR FILTER

A dirty air filter wilt reduce the compressor's performance and life. To avoid any internal contamination of the pump, the filter should be cleaned frequently, and replaced on a regular basis. Felt filters should be cleaned in warm, soapy water, rinsed, and allowed to air dry before reinstaltation. Paper filters should be replaced when dirty. Do not allow the filter to become filled with dirt or paint. If the filter becomes filled with paint, it should be replaced. Direct exposure to dirty conditions or painting areas will void your warranty.

CHECKING THE RELIEF VALVE

Pull the relief valve daily to ensure that it is operating properly and to clear the valve of any possible obstructions,

TESTING FOR LEAKS

Check that all connections are tight. A small leak in any of the hoses, transfer tubes, or pipe connections wilt substantially reduce the performance of your air compressor. If you suspect a leak, spray a small amount of soapy water around the area of the suspected leak with a spray bottle. If bubbles appear, repair or replace the faulty component. Do not over tighten any connections.

STORAGE

Before storing the compressor for a prolonged period, use an air blow gun to clean all dust and debris from the compressor. Disconnect the power cord and coil it up. Pull the pressure relief valve to release all pressure from the tank. Drain all moisture from the tank. Clean the filter element and filter housing; replace the element if necessary. Drain the oil from the pump crankcase and replace it with new oil. Cover the entire unit to protect it from moisture and dust.

				Daily or after	Every	100
Perform the following			maintenance at the intervals indicated below,	each use	operating	hours
Inspect	and clean air filter			•
Check	pump oil level			•
Change	pump oil (Use		synthetic, non-detergent air compressor oil)		•
Operate the pressure		relief valves		•
Check	belt tension				•
Drain tank				•
Check	and tighten all	bolts (do not over tighten)			•

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