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Pressure Washer
13
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).
3. Remove in-line filter from other end of nozzle
extension.
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.
6. Reinstall orifice and in-line filter into nozzle extension.
DO NOT overtighten orifice with allen wrench.
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).
3. Remove in-line filter from other end of nozzle
extension.
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.
6. Reinstall spray tip and in-line filter into nozzle
extension.
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.
Orifice
Figure 23 — Removing and Cleaning Orifice
Figure 24 — Backflushing the Nozzle
Use wire here to
remove debris.
Figure 25 — Nozzle Maintenance
Figure 26 — Backflushing the Nozzle Extension