Briggs & Stratton 020219 owner manual Nozzle Maintenance, O-RingMaintenance, Orifice

2450 PSI 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 screen, spray gun, and nozzle extension with clean water to clear debris.

2.If screen is damaged, the maintenance kit contains a replacement in-line filter screen and an o-ring. If undamaged, reuse screen.

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

4.Place o-ring into threaded end of extension. Push o-ring snugly against in-line filter screen.

5.Assemble nozzle extension to spray gun, as described earlier in this 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 an orifice clogged or restricted with foreign materials, such as dirt, etc.To correct the problem, immediately clean the orifice using the tools included with your pressure washer and follow these instructions:

1.Shut off engine and turn off water supply.

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

Figure 14 — Removing and Cleaning Orifice

Orifice

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

4.Use wire included in kit (or 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

6.Reinstall orifice and in-line filter into nozzle extension. DO NOT overtighten orifice with allen wrench.

7.Reconnect nozzle extension to spray gun.

8.Reconnect water supply, turn on water, and start engine.

9.Test pressure washer by operating with nozzle in high and low positions.

O–Ring Maintenance

O-Rings keep the connections of the hoses and spray gun tight and leak–free.Through normal operation of the pressure washer, they may become worn or damaged.

An O–Ring Maintenance Kit is provided with the pressure washer which includes replacement o-rings, rubber washer and water inlet filter. Refer to the instruction sheet provided in the kit to service the o-rings. Note that not all of the parts in the kit will be used on your unit.

To remove a worn or damaged o–ring; use a small flathead screwdriver to get underneath the o-ring and pry it off.

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