Graco 307935E Round Pattern Kit for PRO3500, PRO4500, PRO4600 Electrostatic Air Spray Guns Owner's Manual

 Rev. E
This manual contains IMPORTANT
WARNINGS AND INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
Supersedes D
ROUND PATTERN KIT
For use on the PRO3500, PRO4500, PRO4600 Electrostatic Air Spray Guns
Part Number 222–329
Part Number 222–330
102 to 152 mm (4 to 6 in.) pattern size
203 to 254 mm (8 to 10 in.) pattern size
INSTALLATION
WARNING
Before installing or removing the air cap/fluid nozzle assembly, always turn off the electrostatics to
the gun and relieve all pressure in the system. This
helps reduce the risk of fire, explosion, or electrostatic shock, which could cause serious bodily
injury and property damage, and reduces the risk
of splashing fluid in the eyes or on skin if the gun is
accidentally triggered.
4. Trigger the gun while installing the fluid nozzle (2)
and resistor stud (A) assembly. Tighten until the fluid
nozzle seats in the gun barrel.
CAUTION
To avoid bending the electrode, carefully guide
the electrode all the way through the hole in the
fluid nozzle before engaging its threads.
5. Place the spacer (5) on the fluid nozzle (2).
Pressure Relief Procedure
1. Turn the ES Valve (electrostatics) OFF.
2. Turn off the air and fluid supply to the gun.
3. Trigger the gun into a grounded metal waste
container to relieve fluid pressure.
Installing the Kit
CAUTION
Be sure to hold the front end of the gun up while
removing the nozzle and resistor stud to prevent
any paint or solvent left in the gun from entering
the air passages.
1. Remove the air cap assembly. Point the front end of
the gun up and squeeze the trigger while removing
the fluid nozzle/resistor stud assembly.
NOTE: If the resistor stud remains in the gun when the
fluid nozzle is removed, start the nozzle thread onto
the stud and pull the stud out.
2. Using the 8 mm hex key, supplied with the gun,
unscrew and remove the resistor stud.
6. Place the diffuser (1) over the spacer (5) and onto the
fluid nozzle (2).
7. Install the air cap (3) over the fluid nozzle (2), being
careful not to bend the electrode.
8. Screw the gun’s retaining nut (Part No. 185–098)
over the air cap (3), onto the spray gun.
9. Tighten the retaining nut until it is snug, allowing the
air cap to turn with resistance. If too tight, the spray
pattern will be distorted.
10. Test the gun resistance as instructed in your gun
instruction manual.
(With Kit
222–329)
A
2
(With Kit
222–329)
3
1
3. Lightly lubricate the o-ring on the resistor stud with a
very small amount of petroleum jelly. Using the 8 mm
hex key, install the resistor stud (A) in the fluid nozzle
(2). Tighten to 10 in-lb (1.12 Nm). Make sure the
needle electrode is properly tightened.
CAUTION
Be sure to install the resistor stud into the nozzle
to prevent paint leakage into the gun’s air passages and ensure proper electrostatic operation.
5
3
Fig 1
(With Kit
222–330)
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1989, GRACO INC.
2
(With Kit
222–330)
01958A
PARTS DRAWINGS AND LISTS
Part Number 222–329
(222–327)
2
102 to 152 mm (4 to 6 in.) Pattern Size
REF
NO.
PART NO.
DESCRIPTION
1
2
3
5
181–237
222–327
181–236
183–378
DIFFUSER
NOZZLE, fluid
AIR CAP
SPACER
QTY
(181–236)
1
1
1
1
3
Part Number 222–330
203 to 254 mm (8 to 10 in.) Pattern Size
REF
NO.
PART NO.
DESCRIPTION
1
2
3
5
181–237
222–328
183–377
183–378
DIFFUSER
NOZZLE, fluid
AIR CAP
SPACER
QTY
1
1
1
1
2
(222–328)
5
1
3
Manual Change Summary
(183–377)
01959A
The manual was revised to correct the nozzle
illustration.
ROUND PATTERN AIR SPRAY PERFORMANCE CHARTS
Part Number 222–329 and 222–330
Fluid Pressure
Bar PSI
2.5
2.0
1.5
1.0
KEY
H
0
Light Viscosity; 18 sec. #2 Zahn
Medium Viscosity; 30 sec. #2 Zahn
Heavy Viscosity; 30 sec. #3 Zahn
Air Flow Adjustment
When using the round pattern kits, in most applications it is desirable to use a very low air flow
through the air cap while maintaining enough
pressure at the gun inlet for full electrostatic
power (about 40 psi [2.8 bar]). This can be
achieved by using the gun’s air restrictor valve
(222–322) and by closing the gun’s fan air valve
(222–321). The pattern width cannot be adjusted
when using the round pattern kits.
M
0.5
L
M
H
L
0
100
oz/min.
200 cc/min.
NOTE: Not recommended for flow
rates above 7 oz/min. (207 cc/
min.)
Fluid Flow Rate
Sales Offices: Atlanta, Chicago, Dallas, Detroit, Los Angeles, Mt. Arlington (N.J.)
Foreign Offices: Canada; England; Korea; Switzerland; France; Germany; Hong Kong; Japan
GRACO INC.
P.O. BOX 1441 MINNEAPOLIS, MN
PRINTED IN U.S.A.
307–935 3/89 Revised 4/94
55440–1441

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