Flushing The Spray Gun; Typical Installation; Setup - 3M Graco 50261 Manuel D'instructions

A
KEY
A Gun
See page 14 for
gun part numbers.
B 3M PPS Cup System
C Needle Valve Inlet;
1/4 npsm
D Air Hose
Recommend 7.9mm (5/16") ID hose
Optional 9.5mm (3/8") ID hose
E Air Shut-off Valve
F Air Regulator
G Air Filter
H Air Supply Line

Flushing the Spray Gun

Note: Flush the spray gun before putting any paint through the gun.
To flush the gun, squeeze water or solvent into the gun adapter while
triggering the gun.
Make sure to use a solvent that is compatible with paint to be sprayed.
Fig. 1
Connecting the Air Line
• You must install an air pressure regulator (F) on the gun air line to
control air pressure to the gun. See Fig. 3.
• If your regulated air source does not have a filter,
(G) on the air line to ensure a dry, clean air supply to the gun.
Dirt and moisture can ruin the appearance of your finished
workpiece. See Fig. 3.
• Use a 7.9 mm (5/16") I.D. air hose to minimize excessive pressure
drop in the hose.

Typical Installation

Setup

install an air filter
3
The spray guns
quality finish with today's automotive paint systems.
The HVLP and Compliant guns typically utilize
200 kPa, 2.0 bar (29 psi) inbound air pressure to
produce high quality paint finishes and comply with
environmental regulations.
The air regulator must have a minimum air flow
capacity of 849 l/min or 30 scfm at 0.7 MPa, 7 bar
(100 psi) air pressure.
Ventilate the Spray Booth
To prevent hazardous concentrations of
toxic and/or flammable vapours, spray
only in a properly ventilated spray
booth. Do not operate the spray gun
unless ventilation fans are operating.
Check and follow all of the National
and Local codes regarding air exhaust
velocity requirements.
Check and follow all local safety and fire codes.
1. Connect the air hose (D) to the 1/4 npsm air inlet (C).
Fig. 2
2. Connect the other end of the air hose (D) to a regulated air
supply line (H).
NOTE: Fig. 3 shows the filter (G) air
valve (E) on the air supply line.
Fig. 3
were designed to produce the highest
WARNING
regulator (F), and air shut-off