Grounding; Pressure Relief Procedure; Models With Advanced Display Module; Models With Standard Display Module - Graco PR70 Repair And Parts Manual

Grounding

Grounding
This product must be grounded. In the event of an elec-
trical short circuit, grounding reduces the risk of electric
shock by providing an escape wire for the electric cur-
rent. This product is equipped with a cord having a
grounding wire with an appropriate grounding plug. The
plug must be plugged into an outlet that is properly
installed and grounded in accordance with all local
codes and ordinances.
Improper installation of the grounding plug is able to
result in a risk of electric shock. When repair or replace-
ment of the cord or plug is required, do not connect the
grounding wire to either flat blade terminal. The wire
with insulation having an outer surface that is green with
or without yellow stripes is the grounding wire. Do not
modify the plug provided; if it does not fit the outlet, have
the proper outlet installed by a qualified electrician. Only
connect the product to an outlet having the same config-
uration as the plug. Do not use an adapter with this
product.
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 (
14
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.
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.

Shutdown

If the machine is to remain idle for an extended period of
time, perform the following steps.
1. Place a waste container below the dispense valve.
).
2. If installed, remove static mixer from the end of the
dispense valve.
in the M1 screen. See
" ICON is shown in the
312760Y