Graco Optimiser 2K 02748 Instructions Manual page 7

Air Line Accessories
The gun air line must have an air regulator (E) to
control air pressure to the gun. See Fig. 1.
If the gun air source does not have a filter, install a
filter (F) on the gun air line to ensure a dry, clean
air supply.
To eliminate the need to shut off the air pressure at
the air supply, install a quick-disconnect at the gun
air inlet fitting.
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious
injury from pressurized fluid, accidental spray from
the gun or splashing fluid, follow this procedure
whenever you:
Are instructed to relieve pressure
Stop spraying
Check, clean or service any system equipment
Install or clean fluid nozzles
1. Close the adhesive and activator shut-off valves
(Q and L). See Fig. 2.
2. Trigger the gun into the spray booth* to relieve the
fluid pressures and clear excess activator from the
gun. See Fig. 3.
* If the gun has been flushed with solvent, be sure to spray
the solvent into a grounded metal waste container .
3. Close the atomizing air shut-off valve (D). See
Fig. 4.
Installation
Setup and Shutdown
Fluid Line Accessories
If you are using diaphragm pumps to supply adhe-
sive or activator to the gun(s), install a fluid regula-
tor (T) on each gun fluid supply line to control fluid
pressure to the gun(s). See Fig. 9, page 9.
Install a fluid filter in the gun fluid supply lines to
avoid clogging the fluid nozzle. A 100 mesh filter is
recommended for the activator supply line to avoid
clogging the activator needle and orifice.
Use 5/32 or 1/4 inch I.D. tubing for the activator
supply line.
Q
Fig. 2
Fig. 3
Fig. 4
L
02059
02753
D
02780