Pressure Relief Procedure; Models With Advanced Display Module; Models With Standard Display Module - Graco PR70 Instructions - Parts Manual

Pressure Relief Procedure

Models with Advanced Display
Module
1. Place a waste container below the dispense valve.
2. Navigate to the Manual screen.
3. Press the Open Dispense Valve button on the Man-
ual screen to relieve chemical pressure.
4. Press the Machine Disable Mode button (
5. Press the system air pressure relief switch down to
stop air supply and to vent air pressure in the
machine. It is the yellow tab at the left, rear of the
machine. The hole in the tab should be visible.
6. If necessary, run a lock through the hole to lock the
tab in place. This prevents the system air pressure
from being inadvertently enabled.
312394ZAC
Models with Standard Display
Module
With the machine in an idle state:
1. If the machine pistons are not fully retracted, retract
the pistons by pressing
manual 3A0429 for more information.
2. Manually open the dispense valve by pressing the
).
third M1 soft key until the "
Current DV field. See manual 3A0429 for more
information.
3. Press the system air pressure relief switch down to
stop air supply and to vent air pressure in the
machine. It is the yellow tab at the left, rear of the
machine. The hole in the tab should be visible.
4. If necessary, run a lock through the hole to lock the
tab in place. This prevents the system air pressure
from being inadvertently enabled.
Pressure Relief Procedure
in the M1 screen. See
" ICON is shown in the
19