Snapper 020229 Purge Pump of Air Contaminants, Nozzle Maintenance, Check In-Line Filter

2450 PSI Pressure Washer

Purge Pump of Air and

Contaminants

To remove air from the pump, follow these steps:

1.Set up pressure washer as described in “Preparing Pressure Washer For Use”. Connect water supply and turn water on.

2.Squeeze trigger on spray gun and hold.

3.When water supply is steady and constant, engage safety latch.

To remove contaminants from the pump, follow these steps:

1.Set up pressure washer as described in “Preparing Pressure Washer For Use”. Connect water supply and turn water on.

2.Remove nozzle extension from spray gun.

4.Assemble nozzle extension to spray gun, as described earlier in manual.

Nozzle Maintenance

A pulsing sensation felt while squeezing the spray gun trigger may be caused by excessive pump pressure.The 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 orifice following these instructions:

1.Shut off engine and turn off water supply.

2.Remove orifice from end of nozzle extension. Separate nozzle extension from spray gun.Twist nozzle clockwise to stream position. Using a 2mm (5/64) allen wrench, remove orifice from end of nozzle extension (Figure 14).

Figure 14 — Removing and Cleaning Orifice

3.Start engine according to instructions in “How To Use Your Pressure Washer”.

4.Squeeze trigger on spray gun and hold.

5.When water supply is steady and constant, engage safety latch and refasten nozzle extension.

Check In-Line Filter

Refer to Figure 13 and service the in-line filter if it becomes clogged, as follows:

Figure 13 — Clean In-Line Filter

Filter Screen

Nozzle Extension

O-ring

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 screen, spray gun, and adjustable nozzle extension with clean water to clear debris.

2.Place in-line filter screen into threaded end of nozzle extension. Direction does not matter. Push screen in with eraser end of pencil until it rests flat at bottom of opening.Take care not to bend the screen.

3.Place o-ring into recess. Push o-ring snugly against in- line filter screen.

Orifice

3.Remove in-line filter from other end of nozzle extension.

4.Use a small paper clip to free any foreign material clogging or restricting orifice (Figure 14).

5.Using a garden hose, remove additional debris by back flushing water through nozzle extension (Figure 15). Back flush between 30 to 60 seconds.Turn adjustable nozzle extension to stream spray and move nozzle from low to high while flushing.

Figure 15 — Backflushing the Nozzle

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