Spray Wands And Nozzles - Briggs & Stratton CE8070 Troubleshooting Manual

Pulling back on the trigger moves the spray gun check ball
off of its seat, as shown in Figure 2.12. The water then flows
through the open valve and out of the wand to the nozzle.
Figure 2.12 — Spray Gun - Trigger Open
When the trigger is released, the valve shuts against its seat
and the water flow is stopped. This condition causes the
pump to enter the bypass mode.
CAUTION:
Spray guns and wands are rated for
maximum pressure and flow rate. Use of an
incorrect spray gun and wand can be dangerous and
will adversely affect pump performance. If
replacement becomes necessary, you must replace
the gun as an assembly. Use only the spray gun and
wand listed in the "Repair Parts" section of the
owner's manual for the specific pressure washer
model being serviced.
Portable Pressure Washer Familiarization and Troubleshooting Guide

Spray Wands and Nozzles

The spray nozzle is critical to proper operation of a
pressure washer. The nozzle restricts the liquid flow and
allows the required pressure to develop. The smaller the
nozzle orifice, the higher the system pressure. Use of a
nozzle having too large an orifice will result in a reduced
system pressure.
In addition to establishing system pressure, the nozzle
breaks the liquid into droplets, forms the spray pattern, and
propels the liquid in the proper direction.
Several different types of spray nozzles may be used. The
most popular type provides adjustable pressure and spray
patterns. For
Generac Portable Products®
nozzles, slide the nozzle backward for High Pressure spray;
push the nozzle forward for Low Pressure spray; twist the
nozzle clockwise for a Fan Spray Pattern; and twist the
nozzle counterclockwise for a Narrow Stream.
In addition,
Generac Portable Products®
several accessory nozzles, such as a rotating brush, utility
brush, and turbo nozzle.
DANGER:
spray pattern while spraying. Never place your hand
in front of the spray nozzle to adjust pressure or
spray pattern.
Refer to the Owner's Manual for the specific pressure
washer model for correct operating instructions.
12
Section 2 • Pressure Washer Components
Do not attempt to adjust pressure or
offers