Harbor Freight Tools 67696 User Manual - Page 14

DRAINING THE TANK See Figure 51.0. OPERATION SAFETY VALVE DRAIN VALVE Fig. 150 CHECKING THE SAFETY VALVE See Figure 61.1. DANGER: Do not attempt to tamper with the safety valve. Any thing loosened from this device could fly up and hit you. Failure to heed this warning could result in death or serious personal injury. The safety valve will automatically release air if the air receiver pressure exceeds the preset maximum. The valv-e should be checked before each day of use by pulling the ring by hand.  Turn the air compressor on and allow the tank to fill. The compressor will shut off when the pressure reach es the preset maximum.  Turn the air compressor off.  Pull the ring on the safety valve to release air for twenty seconds.  Release the ring. Air must immediately stop escaping when the ring is released. Any continued loss of air after releasing the safety valve ring indicates a problem with the safety valve. Discontinue use and seek service before continued use of the air compressor. Fig. 161 WARNING: If air leaks after the ring has been released, or if the valve is stuck and cannot be actuated by the ring, Do Not use the air compressor until the safety valve has been replaced. Use of the air compressor in this condition could result in serious personal injury. 1144