North Star M157597AG, Owner'S Manual

Page: 24 / 64

Operation
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with a single gun.
b) Use two #3.5 nozzles when operating dual guns.
WARNING :
NEVER use #7.0 nozzles when operating both guns. If two
operators use #7.0 nozzles and one operator releases the trigger
on their gun, the flow through the second operator's gun will
suddenly increase from 3.5 to 7 GPM. This will cause the second
operator's gun to kick without warning, which could result in loss
of balance and/or spraying control.
2. Type of cleaning job:
Select the appropriate color nozzle for the job based on the following table.
Generally, the wider the spray angle of the nozzle, the lower the spray
pressure produced.
Color of Nozzle: Spray Angle Used For:
Red 0 Highest Impact
Yellow 15 Tough Stains/Stripping
Green 25 General
White 40 Light Cleaning
Black-Low pressure 65 Chemicals
NOTE: You must use the low pressure black nozzle for spraying chemicals.
For dual gun use with chemicals, you will need a black, #3.5 nozzle on each
gun – you will not be able to spray chemicals out of one gun and plain water
out of the other gun at the same time.
Attach nozzle Attach nozzle to the spray gun.
WARNING:
Depressurize first
Any time you remove / install
/ change a nozzle, you must
depressurize hose line by
squeezing the spray gun
trigger while the engine is off.
Even if the engine has been off
for a long period of time, the
hose may remain dangerously
pressurized.
1. Make sure the engine is off and the hose line depressurized.
2. To install the nozzle, pull the collar back and twist the nozzle firmly into the
Nozzle
Trigger
Figure 8