Operation
313267W
11
Piston Lock
To engage the piston lock (G), push the knob in and turn
it clockwise. If engaged, the gun does not actuate.
To disengage the piston lock, push the knob in and turn
it counterclockwise until it pops out away from the gun
body.
See
Piston Lock Adjustment and Installation Proce-
dure
for additional information.
Valve Control
The flow of material into the mixing chamber is con-
trolled by the on or off position of the two material shut-
off valves (E,F).
NOTE:
Both material shutoff valves must be fully open
and the piston lock (D) must be disengaged during dis-
pensing. During service or extended shutdown periods,
the shutoff valves must be fully closed and the piston
lock engaged.
Refer to the manuals for the feed system you are using
for startup and shutdown procedures.
Loss of Air Pressure
In the event of loss of air pressure, the gun continues to
spray. To shut off the gun, do one of the following:
•
Push in the piston lock (G).
•
Close the material shutoff valves (E,F).
High-pressure fluid from dispensing devices can
pierce skin. To help prevent serious injury from pres-
surized fluid, always engage the piston lock and close
the material shutoff valves to avoid accidental trigger-
ing whenever you stop spraying.
Off
On
