North Star M157593E Owner's Manual

Operation359. If temporarily interrupting spraying, rotate trigger safety latchdownward to the locked position to guard against accidental triggerrelease.10. Always turn off the engine and activate spray gun trigger to relievesystem pressure when: the sprayer is unattended, or disconnecting hoses, installing/cleaning nozzles, or servicingthe pump.WARNING:Always turn off the engine and relieve system pressure when finishedspraying or when leaving sprayer unattended. Serious injury couldresult from unintentional release of high-pressure spray.Step 4. StoppingStop the engine using the following steps:WARNING:Never disconnect the high-pressure hose from the pump or spray gun while the system ispressurized. Relieve pressure by squeezing the spray gun trigger after the engine is turnedOFF.1. If the heater was used, turn heat switch OFF and run cold water through the coil for at least 3minutes while spraying.2. Turn engine OFF.3. Turn water supply OFF.4. Actuate spray gun trigger to relieve system pressure.5. Remove garden hose.6. Remove pressure hose. If chemicals were used, remove quick connect chemical injector fromthe pressure hose and water outlet.7. Remove nozzle from spray gun.8. Cool engine at least five minutes before storing -- A hot engine is a fire hazard.