Graco AquaMax 3540GHW, Instructions Manual

Page: 9 / 38

9
INSTALLATION & PREPARATION
INSTRUCTIONS
Dual Lance Assembly with Adjustable Pressure
This unit features a Dual Lance Assembly with adjust-
able pressure which allows the user to select a high or
low pressure “fan” spray. Simply rotate the adjustable
grip on the dual lance to achieve the desired pressure
selection.
1. Selection of high pressure can be achieved by turning
the adjustable grip on the Dual Lance assembly
counterclockwise as shown in the figure below.
2. Selection of low pressure detergent application can
be achieved by turning the adjustable grip on the Dual
Lance clockwise as shown in the figure below. Once
the pressure is low enough, the detergent injector
on the pressure washer will draw detergent into the
system. A water/detergent mixture exits from both the
spray nozzle and detergent nozzle.
Dual Lance Connection
• Be certain the trigger gun is locked in the "OFF"
position.
• Connect the dual lance assembly to the trigger gun
assembly at this time. Be certain the connection is
securely tightened.
Nozzle connection
Be certain the trigger gun is locked in the “OFF” posi-
tion.
The quick connect nozzle assembly should be discon-
nected from the gun/wand assembly at this time by
retracting the locking ring on the quick-connect fitting
to remove the nozzle.
The detergent nozzle is factory installed.