Generac Portable Products 2,100 PSI High Pressure Washer 1. Detach spray gun and nozzle extension from high pressure hose. Detach nozzle extension from spray gun and remove o-ring and screen from nozzle extension. Flush the screen, spray gun, and adjustable nozzle extension with clean water to clear debris. principal cause of excessive pump pressure is a nozzle clogged or restricted with foreign materials, such as dirt, etc. To correct the problem, immediately clean the nozzle using the tools included with your pressure washer and follow these instructions: 2. If the screen is damaged, the o-ring kit contains a replacement in-line filter screen and an o-ring. If undamaged, reuse screen. 1.
Shut off the engine and turn off the water supply. 2. Detach the nozzle extension from the spray gun. Twist the nozzle clockwise to the stream position. Using the supplied 2mm (5/64) allen wrench, remove the nozzle from the end of the nozzle extension (Figure 22). 3. Place the in-line filter screen into the threaded end of the nozzle extension. Direction does not matter. Push the screen in with the eraser end of a pencil until it rests flat at the bottom of the opening. Take care to not bend the screen. Figure 22 — Removing and Cleaning Nozzle 4. Place the o-ring into the recess. Push the o-ring snugly against the in-line filter screen. 5.
Assemble the nozzle extension to the spray gun, as described earlier in this manual. Nozzle Purge Pump of Air and Contaminants To remove air from the pump, follow these steps: Set up the pressure washer as described in “Preparing Pressure Washer For Use”. Connect the water supply and turn water on. 3. Remove the in-line filter from the other end of the nozzle extension. 4. Use the wire included in the kit (or a small paper clip) to free any foreign material clogging or restricting the nozzle (Figure 22). Pull the trigger on the spray gun and hold. When the water supply is steady and constant, engage the safety latch. 5.
Using a garden hose, remove additional debris by back flushing water through the nozzle extension (Figure 23). Back flush between 30 to 60 seconds. Turn the adjustable nozzle extension to stream spray and move the nozzle from low to high while flushing. To remove contaminants from the pump, follow these steps: Set up the pressure washer as described in “Preparing Pressure Washer For Use”. Connect the water supply and turn water on. Figure 23 — Backflushing the Nozzle Start the engine according to instructions in “To Start Your Pressure Washer”. Remove nozzle extension from spray gun. Squeeze the trigger on the spray gun and hold.
When the water supply is steady and constant, engage the safety latch and attach the nozzle extension. 6. Reinstall the nozzle and in-line filter into the nozzle extension. Do Not overtighten the nozzle with the allen wrench. Nozzle Maintenance 7. Reconnect the nozzle extension to the spray gun. A pulsing sensation felt while squeezing the spray gun trigger may be caused by excessive pump pressure. The 8. Reconnect the water supply, turn on the water, and start the engine. 13