Pressure Washer
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 or sand.To correct the problem, immediately clean the orifice using the tools included with your pressure washer and follow these instructions:
Adjustable nozzle:
1.Shut off engine and turn off water supply.
2.Detach nozzle extension from spray gun.Twist nozzle clockwise to stream position. Using 2mm (5/64) allen wrench, remove orifice from end of nozzle extension (Figure 23).
Figure 23 — Removing and Cleaning Orifice
Orifice |
7.Reattach 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.
Quick-connect spray tips:
1.Shut off engine and turn off water supply.
2.Remove spray tip from end of nozzle extension (Figure 25).
Figure 25 — Nozzle Maintenance
Use wire here to
remove debris.
3.Remove
4.Use small diameter wire or a small paper clip to free any foreign material clogging or restricting spray tip (Figure 25).
5.Using a garden hose, remove additional debris by back flushing water through nozzle extension (Figure 26). Back flush between 30 to 60 seconds.
Figure 26 — Backflushing the Nozzle Extension
3.Remove
4.Use small diameter wire or a small paper clip to free any foreign material clogging or restricting orifice (Figure 23).
5.Using a garden hose, remove additional debris by back flushing water through nozzle extension (Figure 24). Back flush between 30 to 60 seconds.Turn adjustable nozzle extension to stream spray and move nozzle from low to high while flushing.
Figure 24 — Backflushing the Nozzle
6.Reinstall spray tip and
7.Reattach nozzle extension to spray gun.
8.Reconnect water supply, turn on water, and start engine.
9.Test pressure washer by operating with each Quick Connect spray tip.
6.Reinstall orifice and
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