Page 1
Parts
Page 2
WARNING
Before cleaning the gun nozzle or attempting to service
the gun or other components, always turn off the high
voltage first, then shut down paint pump and trigger
gun to relieve fluid pressure.
Grounding
All components of the system, except the gun and paint
hoses, must be electrically grounded. Be sure the
tric
power circuit is properly grounded.
Be sure your gun is not grounded.
paint hoses to gun only, and be sure your supply pump
and the object you are painting are-grounded.
Use un$rbunded r
elec-
Be sure your installation complies with all applicable
local codes.
ALWAYS use the lowest pressure possible when
flushing and use a grounded metal waste container.
When flushing, avoid conductive solvents, if possible.
Be sure to turn off H.V. Power Supply before flushing,
and to remove all solvent from gun before turning on
high voltage.
Operating
Never use or store solvents in the spray area.
All conductive objects within 10 ft (3 m) of the gun must
be electrically grounded.
The object being coated must be grounded.
How The Elecnostatic Automatic
Air Spray Gun Works
A transformer supplies high voltage current through the
cable to the gun’s ionizing electrode, where the
trostatic field is developed. The pump supplies paint
Be sure your installation complies with Federal, State
and local codes for the installation of electrical
apparatus in a Class 1, Divisions 1 and 2 Hazardous
Location.
The particular type and size system for your operation
will have to be custom designed for your needs. For a
correctly sized system, contact the
System Division, Franklin Park, Illinois.
Mount the gun on an insulated stationary support or
reciprocator arm.
The spray gun has a mounting hole to fit a 0.5 in.
(13
mm) diameter rod. Use a mounting fixture which
allows adjustment of the spray pattern direction and
distance from the work.
Grace
elec-
Finishing
NEVER IMMERSE THE SPRAY GUN IN SOLVENT OR
OTHER LIQUID.
Keep work hangers and conveyor equipment clean so
work pieces are well grounded.
through the hose and gun, where it is electrostatically
charged as it passes the ionizing electrode. The charged
paint is attracted to the grounded work piece, wrapping
around it and coating surfaces indirectly.
hose from the solenoid valve to the gun’s
cylinder air inlet. Connect an air supply line to the
l/4”
npt(m) atomizing air inlet.
BEFORE CONNECTING FLUID LINES, BLOW THEM
OUT WITH AIR AND FLUSH WITH SOLVENT. BE
SURE THAT THE SOLVENT YOU USE IS COMPATIBLE WITH THE MATERIAL TO BE SPRAYED.
Connect a fluid hose to the paint supply pump’s outlet
and to the gun’s
Install fluid tip in gun. Be sure fluid pressure is relieved
and high voltage turned off before installing tip.
Recommended Hose Sizes (General Purpose)
O-10 ft (O-3 m)
lo-35 ft (3-l 1
35-100ft
100-200 ft
I
3/8
npsm fluid inlet.
MATERIAL
m)
ill-30m) l/2”
(30-61 m)
l/4”
l/4”
3/8” ID
3/4” ID
npt(m)
ID
ID
I
Install a normally closed, 3-way air solenoid valve in the
cylinder air supply line. BEFORE CONNECTING AIR
LINES BLOW THEM OUT TO REMOVE METAL CHIPS
AND OTHER FOREIGN PARTICLES. Connect an air
Adjust the system’s control device so the gun starts
spraying just before the spray meets the workpiece, and
stops as soon as it is past.
The gun requires a minimum of 30 psi (2 bar) air
pressure to the cylinder.
Fluid Control
Adjust the fluid flow to the proper rate, using a fluid
2
307434
I
regulator installed in paint line. It is best to adjust flow
rate with a fluid regulator.
Spray Pattern Control
Turn air adjusting screw
wide flat spray pattern or clockwise to decrease to a
round pattern.
O-50 ft (O-15 m)
50-100
100-200
ft
ft
(15-30 m)
(30-61 m)
AIR
(36)
counterclockwise for a
l/4”
ID
5/16” ID
3/4” ID I
Page 3
NOTE: When increasing to a wide, flat pattern,
Direction of spray pattern (horizontal or vertical) is
changed by loosening lock ring and turning air cap to
the desired position. TIGHTEN LOCK RING HAND
TIGHT. DO NOT OVERTIGHTEN.
Normal Spray Pattern
.::>:0Proper adjustment will grve a spray pattern shaped
## Iike this.
$$:i:
Improper Spray Patterns
increase supply of fluid to gun to maintain
same coverage over larger area.
$:::.
Connect high voltage cable to the high voltage adapter
(44.
When all adjustments are made, -trigger air, atomizing
air, fluid pressure, and fan pattern,-you can turn on
the high voltage and begin operation.
Care of Gun
Good housekeeping is important. Clean the gun and
work area daily. A buildup of conductive residue on
either exterior or interior surfaces of gun may interfere
with proper operation.
Flush out the gun with an approved solvent at the end
of the work day. Wipe the outside of the gun with an
approved gun cleaner. Remove the air cap and clean it.
If ionizing wire of needle (41) is bent after cleaning,
straighten wire so that it is centered in fluid stream. For
an approved solvent or gun cleaner, see your local supplier or Grace Branch. Also, refer to OSHA 29 CFR
1910.107(g)(5).
Heavy on top or bottom, right or left. Caused by
paint buildup on air cap or fluid tip, partially plug-
ged air holes or fluid tip. To remedy, clean the cap
or tip.
&$
Heavy in the center. Caused by too much, or too
@$
thick material. To remedy, reduce flow by
0
<is?
ducing fluid pressure or thinning the paint.
Split pattern. Caused by insufficient paint, or too
much air pressure. To remedy, increase fluid
pressure or reduce air pressure.
Make sure the H.V. power supply electricity is
turned off before connecting or drsconnectrng the
high voltage leads at guns or junction arm.
I
TROUBLESHOOTING CHART
WHAT’S WRONG
Fluid needle packing nut leakage
Air leakage from front of gun
Fluid leakage from front of gun
Spitting or fluttering spray
Defective spray pattern
“Orange Peel” finish
Streaks in finish
Runs or sags in f
Excessive spray
Fluid won’t corn
WARNING
I
Cleaning
After each spraying operation, turn off the high voltage
power supply, and solvent flush until all remaining paint
is removed from hose and gun.
re-
If air cap needs cleaning, remove and soak in clean
compatible solvent (not over 15 minutes) and scrub with
a fine bristled brush. To clean out holes in air cap, use a
toothpick or other soft implement.
Never use metal instruments to clean holes in air
must be turned off. Before removing air cap or
spray tip, shut down paint pump and trigger gun
worn packing
Air valve not seating properly
Fluid needle not seating
properly
Fluid low
Loose fluid tip or damaged
seat
Loose air cap, dirty or damaged
fluid nozzle or air cap
Needle worn or damaged
Too much air pressure
Insufficient air pressure
Poorly mixed and/or strained
fluid
Fluid thinned out too much
Improper thinner
entire gun in
Clean,lubricate,service
Loosen packing nut,
clean
or replace
Check fluid supply
Tighten,clean,replace
Tighten,clean,clear
replace
Replace
Use least necessary
Increase air pressure
Properly mix and
strain
Properly thin fluid
Use proper thinner
307434
3
Page 4
should be taken when starting threads. Applied
vide you with years of durability and efficiency
These working parts require periodic replacement:
1. Air cap (7).
2. Fluid tip (6).
3. Needle, fluid (41).
Removing Fluid Tip
To remove fluid tip (6) for cleaning or replacement,
remove the ring nut (8) and air cap
atomizing air, trigger the gun to release needle pressure
on the tip. Remove the tip with a wrench. Replace with
the needle triggered to the rear.
When replacing air cap
electrode coming from the needle
air cap center hole. The best method is to slide the air
cap onto fluid housing
goes through center hole of air cap, then tighten ring
nut
(8),
evenly on the fluid tip. Check alignment of ionizing wire
in the fluid stream.
onto barrel
(7)
on the gun, be sure the wire
(51,
making sure that the wire
(42)
allowing air cap to be drawn up
(71,
turn off the
(41)
is centered in the
Replacing Needle Guide
Needle guide (47) is pressed into rear of fluid housing
(5). Remove fluid housing and press out needle guide.
When replacing be sure internal chamfered end faces
rear of fluid housing.
Replacing Fluid Needle Extension
Remove needle (see Replacing Fluid Needle). When
replacing extension (46); locknut
justing nut
Push needle
fully forward, and turn the adjusting nut
into the piston. Remove needle assembly from piston,
turn adjusting nut two turns counterclockwise, and
tighten locknut (29). This adjustment provides atom
izing
seating.
Replacing Fluid Packing
The fluid packing
is removed. Remove the packing nut
the packing and replace. Replace the packing nut. In-
sert the fluid needle, tighten the packing nut and apply
pressure on the packing to a firm seating. Do not
tighten. The fluid needle should move without binding.
When the gun is completely assembled and fluid
pressure applied, the packing nut may be tightened to
correct a slight leak.
(30)
must be readjusted on needle extension.
(41),
needle extension
air just before the fluid needle is engaged and after
(23)
is replaced when the needle
(29)
and needle ad-
(46)
and piston
(30)
all the way
(22)
then pick out
(38)
(41)
over-
Removing Fluid Tip Housing
If the housing
replaced and the housing firmly seated. The housing
must be torqued no more than 15-20 ft-lb
plastic threads may become stripped. Lubricate with
petroleum jelly new o-rings on housing before replacing
in gun barrel.
(5)
is removed, the o-rings
(2)
should be
(20
N-m), or
NOTE: Fluid tip (6) must be removed from housing
before replacing to avoid damage to ionizing
wire.
Replacing Fluid Needle
Turn off the atomizing air and fluid, trigger the gun to
release needle pressure on the tip. Remove ring nut
and air cap
wrench. Remove nut
of the gun. With a long nose pliers pull out needle extension
(41).
Unscrew needle
maybe necessary as Loctite is used on threads.) Install
new needle
to threads to prevent needle from coming loose during
operation. Reassemble needle into back of gun using
extreme care. Ionizing wire must remain straight as it
passes through rear actuator packings
After needle is assembled in the gun, replace fluid tip
and rear spring
justing screw
justment see Replacing Fluid Needle Extension.
(46),
(7).
Remove fluid tip
(19)
and screw
nut
(291,
nut
(301,
(41)
from extension (46). (Pliers
(411,
applying Locrite no. 290 or equivalent
(33)
and spring
(311,
locknut
(19)
(6)
with a 7/16 in.
(31)
from the rear
spring
and air cap
(331,
(18).
(341,
along with ad-
and needle
(7).
(8)
(6)
For ad-
Removing Gun Barrel
It is seldom necessary to remove the gun barrel (42)
from the gun body
complished by unscrewing the gun coupling
carefully lifting away from the gun body. Inspect o-rings
(I and 4) and replace if necessary. To line up guide pin
in barrel with hole actuator assembly keep indicator detent intop of barrel lined up with top of actuator.
Replacing Cylinder Adapter
The cylinder adapter
damaged.
(37).
When necessary, this is ac-
(43)
should not be removed unless
(8)
and
Replacing Electrode Stem of Fluid Needle
If electrode stem (48) of fluid needle
ment, first unscrew electrode stem from fluid needle ex-
tension (46). Unscrew setscrew, and remove old elec-
trode stem.
Insert new electrode stem and replace setscrew.
Reassemble fluid needle (41) to fluid needle extension
Ma
(41)
needs replace-
4 307434
Page 5
ELECTROSTATIC AUTOMATIC
AIR SPRAY GUN
Model 216-119
47
CHAMFERED END
TOWARD NEEDLE
Ref No. 39 Air Adjusting
Screw Assy includes items /
26-26 and 36.
Torque to
15-19
ft-lb
C20-25
N-m)
I
REF
PART DESCRIPTION
NO.
103649
+103-823
722-615
+155-685
172-191
177-062
177-033
176-387
176-388
217-013
Series”B”
l
103338
l
103-523
“103-524
“103-610
“103649
“160-240
162-782
“174-099
171333
171332
“106901
169-870
176-773
105-456
*X8-1
170-242
170-243
PACKING, o-ring; viton
PACKING, o-ring; nitrile rubber
ELBOW,
l/4 npt(m)
x
l/4
npsm(f) swivel
PACKING, o-ring; nitrile rubber
HOUSING, fluid tip
FLUID TIP, See chart for optional tips
AIR CAP, See chart for optional air caps
RETAINING RING
RETAINING RING
AUTOMATIC AIR VALVE ASSY.
includes items 1 l-40 and 52
PACKING, o-ring; viton
:
GASKET; copper
. GASKET; copper
. PACKING, o-ring; viton
. PACKING, o-rina: viton
PACKING. v-blozk; leather
: LOCKNUi
. STUD, coupler
NUT, packing
:
NUT, packing
PACKING, needle; PTFE
:
ADAPTER, air inlet;
HOUSING, spring
: WASHER
10
. O-RING, polyurethane
NUT, lock; needle
:
NUT, needle adjusting
x
l/4”
npsm
(27-34
N-m)
L46
HAND TIGHT
*Included in Repair Kit 215697.
(See back page).
PART
NO.
170-244
170-249
724391
170-253
171-722
217-198
21 O-743
“208-718
217-199
171-052
“215-695
214-919
724306
728-136
176390
176-513
215696
177-122
177-121
177-142
*Recommended “tool box” spare parts. Keep on hand to reduce
down time.
Order parts by name and number. Always give the model number and
series letter of the assembly for which you are ordering.
DESCRIPTION
. SCREW, needle adjusting
. CYLINDER, air piston
. SPRING, compression
. SPRING, compression
HOUSING, valve
:
SCREW, air adjusting
. HOUSING, valve
PISTON, air
: AIR ADJUSTING SCREW ASSY.
includes items 26-28,36
(part of ref no.
. GASKET, PTFE
(part of ref no.
NEEDLE, fluid
BARREL
ADAPTER, cylinder
ADAPTER, 3/8-16 x 5/8 NPT
NEEDLE, ext-fluid
GUIDE, needle
STEM, electrode (replacement kit of 25)
STEM, coupling
STEM, fluid
WRENCH
10)
10)
307434
5
Page 6
AIR CAP CONSUMPTION AND FLUID TIP FLOW RATE CHART
Approximate
Pattern Length
Air Cap 254 mm (10 in) 177532 355-710 591-1182 la351479
Part Number
177-033”
177-034 330361
177-036
177-037
177439 356-406 mm
‘Standard on Model 216-119.
from gun
381-432 mm
(15-17 in)
mm
(13-15 in)
381432
mm
(15-17 in)
279-330 mm
(11-13 in)
(VI-16 in)
Air Consumption
ma/min @ 2.06 bar
(CFM e, 30 PSI) Description
0.266
(9.5,
0.236
(8.5)
0.28
(10)
5
177-666 177-d 177461 177463
/
Round end pattern, excellent atomization
for automatic and hand gun high production. Medium viscosity materials 19-30 sec.
No. 2 Zahn cup - metallics, lacquers and
enamels.
Round end pattern, very good atomization
for medium automatic hand gun production. Medium viscosity materials 19-30 sec.
No. 2 Zahn cup - primers, lacquers,
enamels, sealers
Tapered end pattern, excellent atomization
for heavy and high solid material. High
viscosity materials over 28 set No. 4 Zahn
cup - high solid lacquers, enamels, epoxies
and urethanes.
Round end pattern, good atomization for
low production. Low viscosity materials
1522 set No. 2 Zahn cup - stains,
primers, sealers and lacquers.
Tapered end pattern, very good atomiza-
tion for heavy viscosity material over 28
set No. 4 Zahn cup - Water-Base and Frit
materials, acrylics, alkyds, vinyl, enamels
and lacquers.
.
6-18 12-24 20-40
1 mm
fO.040 in) (0.047 in) (0.060 in) (0.070 in)
x x x
X
X
Fluid Tip Part No
1.2 mm 1.5 mm 1.8 mm
x x
x x x
3550
X
x x
FLOW
ml/min
oz/min
,Fluid
Rate
Tip Size
The Equivalence Chart is
designed to update old style
guns with Fluid Tip and Air
Cap part numbers no longer
available, to current Fluid Tip
and Air Cap part numbers.
The left side of the chart
Number Nozzle Size
214-918
identifies old style guns with
the Fluid Tip and Air Cap part
;; i-i;
numbers which are no longer
available.
The right side of the chart
gives the equivalent, current
Fluid Tip and Air Cap part
number that should be
ordered when replacing
parts.
6
307-434
OLD GUN NEW GUN
Part Fluid Orifice
172-834
0.028 172-841
172-835 0.040
172-836
0.060 172-842 177-061 0.060
EQUIVALENCE CHART
Air Part Fluid Orifice Air
Cap
Number Nozzle Size
216-119
177-060 0.040
177-062 0.047 177-033
172-318 177-034
171-630 177-036
177-063 0.070 177-036
Cap
177-033
177-034 177-037
177-034
177-036
177-037
177-033
177-039
m-p39
Page 7
TEXTILC
SPIRITS
r
t
MINERAL SPIRITS
OOORLESS MIN.
ERAL SPIRITS
I
ACETONE .05 MEG. 0.6
BENZENE
TRICHLOA-
ETHYLENE
I
SC-1
soLvcSSodo
TOLUOL
1.NITRO
PROPANE
TURPENTINE
SC.106
SOLVESSO.lW
I I
DEPTINE 33 120.
I
I
1
SC.150
SOLVESSO-
HNE OIL
I
I
I
I
I
I
I
ETHYL ACETATE
0.46 MEG.
METHYL CELLO.
METHYL AMYL
ACETATE
I I
I
I
I I I
SOLVE .02 MEG.
ETHYL CELLO.
-- - _____^
SOLVt
.oll MLlJ.
BUTVL CELLOSOLVE
0.8 TO .19 MEG.
DOWANOL DPM
.03 MEG.
MEK
I
METHVL ALCOHOL
0.
RES.
ETHYL ALCOHOL
D2 MEG.
SOPROPVL ALCOHOL
D 1. MEG
.-_-. .
-----..-- 11.6
0.6 TO 36 MEG.
AMYL ALCOHOL
.06 MEG.
CVCLO HEXANOL
2.6 MEG.
.05 MEG. 1.5 35
DIACETONE
.14 MEG.
ISOPMORNE
.07 MEG.
I I
1.06 <
1.2
<s
1.3 NONE
1 A
1.6
2.5
2.7 41
29
3.0
3.6do55
11.6 120
I1
3 110
14
19 116
21 107.
29 115
155
29
3sl
104.
50 166
66.2
130.
72.5 154
96 152.
116 165
193
205
-1
176. ,
15
o*
29’
40’
a
99
910
SHELLY)J
RESISTANCE MEASURED WlTti GRACO PROBE AND METER. LOW RESISTANCE,
OR POLAR. SOLVENTS MEASURE NORMALLY LESS THAN 1 MEG
HIGH RESISTANCE. OR NONPOLAR SOLVENTS
MEASURE
INFINITY.
750
206.
EUTVL CARBITOL
S”AOE,, AREASSHOW HlGli RESISTANCE - N-BUTYL ACETATE. AMYLAQTATE. - - TAG CLOSED CUP
307434 7
Page 8
DIMENSIONAL DRAWING
,.
. .
0.5”
(13
MOUNTING ROD HOLE
mm) DIA
,
*
ACCESSORIES
(Must be purchased separately)
STRAINER (AIR OR PAINT) 202-271
Uses the following filter screen:
157-332 (40 mesh)
156-967 (60 mesh)
156-939 (100 mesh)
cr -’
v
6
cd
cdl
H-V CABLES
724-410
For stationary mounting, 2 ft (610 mm) lg
727-997
For reciprocator mounting, 15 in. (381 mm) Ig
REPAIR KIT 215-697 (must be purchased separately).
Consists of:
Ref No.
s
11
Q;Y.
1
1
1
ii
15
:
16
;
ii
28
38
:
1
ELECTRODE KIT 215-696
Consists of (25) 177-123 Electrode
KIT, REPAIR, GUN
(FAN VALVE) 215-506
Ref No.
Qty.
27
28
si
:
:
Maximum air & fluid working pressure: 100 psi (7 bar)
Minimum air cylinder operating pressure:
MAX WIDTH 1.31” (33.3
FLUID INLET
mm1
TECHNICAL DATA
Maximum operating voltage: 100,000 volts
Fluid inlet:
Atomizing air inlet:
Cylinder air inlet:
Weight: 3 lb. 2 oz. (1.4 kg)
THE GRACO WARRANTY
Grace Inc. warrants all equipment manufactured by it and bearing its
name to be free from defects in material and workmanship under
normal use and service. This warranty extends to the original
purchaser for a period of 12 months from the date of purchase and
applies only when the equipment is installed and operated in
accordance with written factory recommendations. This warranty
does not cover damage or wear which, in the reasonable judgment of
Grace, arises from misuse, abrasion, corrosion, negligence, accident,
substitution of non-Grace parts, faulty installation or tampering.
This warranty is conditioned upon the prepaid return of the equipment
claimed to be defective for examination by Grace to verify the claimed
defect. If the claimed defect is verified,
free of charge, any defective parts. The equipment will be returned to
the original purchaser transportation prepaid. If inspection of the
equipment does not disclose any defect in workmanship or material,
repairs will be made at a reasonable charge and return transportation
will be charged.
THIS LIMITED WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF
ANY OTHER WARRANTIES (EXPRESS OR IMPLIED) INCLUDING
WARRANTY OF MERCHANTABILITY OR WARRANTY OF
FITNESS FOR A PARTICULAR PURPOSE AND OF ANY NON-
CONTRACTUAL LIABILITIES INCLUDING PRODUCT LIABILITIES
BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF
LIABILITY FOR DIRECT, SPECIAL OR CONSEQUENTIAL
DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED.
EQUIPMENT NOT COVERED BY GRACO WARRANTY. Accessories
or components of equipment sold by Grace that are not manufactured
by
Grace
the warranty, if any, of their manufacturer.
purchaser with reasonable assistance in making such claims.
(such as electric motors, switches, hose, etc.) are subject to
30 psi (2 bar)
3/8
npsm(m)
l/4
npt(m)
l/4
npt(m)
Grace
will repair or replace
Grace
will provide
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan
Factory Branches: Atlanta, Dallas, Detroit (Southfield),
Los
Angeles, West
Caldwell (N.J.1
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440
PRINTED IN U.S.A. 307434
8-80
Loading...