Graco Series A User manual

Parts

WARNING
HIGH PRESSURE SPRAY CAN CAUSE EXTREMELY SERIOUS INJURY.
FOR PROFESSIONAL USE ONLY.
OBSERVE ALL WARNINGS.
Read and understand all instruction manuals, tags, and warnings before operating equipment.
INJECTION HAZARD
Fluids under high pressure from spray or leaks can
penetrate the skin and cause extremely serious injury,
including the need for amputation.
NEVER point the spray gun at anyone or any part of the
body.
NEVER put hand or fingers over the spray tip.
NEVER try to stop or deflect leaks with your hand or
body.
AL WAYS have tip guard in place when spraying.
MEDICAL TREATMENT
If an fluid ap ears to penetrate our skin get
EbERGENC% MEDICAL CARE j;T ONCE:
DO NOT TREAT AS A SIMPLE CUT.
Tell the doctor exactly what fluid was injected. For
treatment instructions have our doctor call the
NATIONAL POISON 8ENTER NETWORK
[phone]
AVOID COMPONENT RUPTURE
--
This pump develops 950 psi (66 bar) material pressure
at 95 psi (6.5 bar) air supply pressure. NEVER exceed
95 psi (6.5 bar) air supply pressure to pump.
Always be sure that all fluid handling components have
a maximum working pressure rating of at least 950 psi
(66 bar).
NEVER alter or modify the equipment.
Any damage to a hose can result in hose failure and
possible bodily injury or property damage. Before each
use, check entire hose for cuts, leaks, abrasion or bulg-
ing of cover or damage or movement of couplings. If
any of these conditions exist, replace the hose im-
mediately. Never use tape or any device to try to mend
the hose.
Help prevent damage to hose by handling and routing
carefully. Do not expose hose to temperatures above
180°F (82OC) or below -4OOF (-4OOC). Do not pull
sprayer with hose.
USE EXTREME CARE WHEN CLEANING
SPRAY TIPS AND SERVICING
Before removing any part for cleaning or servicing,
always disconnect power source and carefully relieve
fluid pressure by triggering spray gun, engaging gun
safety latch and any other equipment safety locks, and
opening any drain or bleeder valves. Leave drain valve
open during servicing. Remove spray tip from gun for
cleaning.
2307-595
SPRAY GUN SAFETY ~
When spray gun is not actually spraying, always set the
gun safety latch in the horizontal or “SAFE” position,
making the gun inoperative.
DO NOT REMOVE OR MODIFY any pati of the gun.
CHECK OPERATION OF ALL GUN SAFETY
DEVICES BEFORE EACH USE.
Always remove the tip from the gun to clean it.
Be very careful when removing the spray tip or hose
from gun. A plugged line contains fluid under pressure.
Your system should have a drain valve downstream
from the pump to relieve the pressure. If you use a fluid
pressure regulator, you must install another drain valve
downstream from the regulator. If tip or line is plugged,
open the drain valve, then loosen air cap retainer or
hose coupling slightly and relieve the pressure slowly
before removing completely.
PREVENT STATIC SPARKING
Always be sure all system equipment and objects being
sprayed are properly grounded. The high velocity flow
of fluid creates static electricity. Sparks may cause fire,
explosion, or electric shock.
Use only conductive or grounded air and fluid hoses for
air-assisted airless applications. Be sure gun is ground-
ed through hose connections. Check ground continuity
in hose and equipment once a week. Overall (end to
end) resistance of unpressurized hose must not exceed
29 megohms for any coupled length or combination of
hose lengths.
Never exceed 500 ft (150 m) overall combined hose
length to assure electrical continuity.
When flusning equipment, remove spray tip, use the
lowest possible pressure, and maintain firm metal to
metal contact between gun and grounded metal waste
container. This reduces the chance of static sparking.
Follow the
precautions
manufacturer’s
coating and solvent
and warnings.
safety
United States Government safety standards have been
adopted under the Occupational Safety and Health Act.
These standards - particularly the General Standards,
Part 1910, and the Construction Standards, Part 1926
-
should be consulted in connection with your use of
air-assisted airless spray equipment.

CMaster Air Valve
6 Puma Air Regulator
E
Drain Valve -
Fluid Shutoff Valve
G Fluid Filter
HGrounded Fluid Hose
JPump
L”
Air Hose
Air Pressure Regulator
1
Pump Fluid Inlet
In-Line Fluid Filter
S
Trigger Safe6
. . A ..I.--
Vbrouna wire
H
L
Pattern Adjustment Valve KnQb
Fluid Pressure Regulator
RPressure Gauoe
INSTALLATION
I
>..’
’
,,. \ ,, , :i \ ; . . . I’ ;: *
.
WARNING
Pressure Relief Procedure
Always relieve the system pressure whenever you
stop spraying, and before installing, removing or
cleaning any parts to avoid serious bodily injury
from high pressure fluid trapped in the system.
Always follow this procedure: shut off the pump,
trigger the spray gun, engage the trigger safety,
and slowly open the drain valve(s). Leave the
drain valve(s) open until you are ready to use the
system again.
The dimensional drawing on the back page gives
measurements needed for installing pump on a custom
designed mounting. See ACCESSORIES on back page
for available Grace mounting accessories.
NOTE: Reference numbers and letters in paren-
theses in the text refer to the Typical Installa-
tion, Fig 1, 2, and Parts Drawing.
Connect a ground wire to pump air motor. Loosen
grounding lug locknut (T) and washer (U). Insert one
end of a 12 ga (1.5 mm2) minimum ground wire (VI into
slot in lug (W) and tighten locknut securely. See Fig 1.
Connect the other end of wire to a good ground. Check
your local code. See ACCESSORIES for available
ground wire and clamp.
System Accessories
Refer to the Typical Installation drawing and the AC-
CESSORIES section for assistance in setting up your
system. If you supply your own accessories, be sure
they are adequately sized to meet your system re-
quirements.
We recommend installing an air line filter (A) to remove
harmful dirt and moisture from your compressed air
supply, an air line oiler (8) for automatic pump lubrica-
tion, a bleed-type master air valve (C), and an air
regulator (D) to control pump speed and material
pressure. See Accessories on back page.
Downstream from the pump in the fluid line, we recom-
mend installing a fluid shutoff valve (F), a fluid filter (G),
a drain valve (El, and a fluid pressure regulator (G).
Air and fluid valves are used to shut off and/or relieve
pressures in the system before adding, removing or ser-
vicing any parts of the system.
Connect Hoses
Connect a grounded air line hose (K), a grounded fluid
hose (H 1 and a suction hose to your system.
Connect a suction hose or siphon tube to the 3/a
npt(m) intake (M) of pump.
Connect a l/2 in. ID (minimum) grounded air supply
hose (K) to the pump’s l/2 npt(f) air inlet or the air
regulator’s inlet fitting.
Fig 1
307595 3

Flush the Pump 88fOr8 Using
Pumps are tested with No. 10 motor oil which is left in
to protect pump parts. To prevent contamination of
material, flush pump with a compatible solvent before
using. If pump is being used to supply a circulating
system, allow solvent to circulate for at least 10
minutes.
Starting and Adjusting Pump
Fill wet-cup (19) one half full with Grace Throat Seal Li-
quid (TSL), trigger spray gun and slowly open air supply
valve until pump starts (about 20 psi (1.4 bar)). Allow
pump to cycle slowly until all air is pushed out of lines.
Release trigger, pump will stall against pressure.
With pump and lines primed, and with adequate air
pressure and volume supplied, the pump will start and
stop as the spray gun is triggered and released. In a cir-
culating system, it will run continuously and speed up or
slow down as supply demands until air supply is shut
Off.
Use an adequately sized air regulator to control pump
speed and material pressure. See ACCESSORIES.
Always use the lowest air pressure necessary to give
you the results you want.
Never exceed 95 psi (6.5 bar) air pressure to pump.
Keep the wet-cup (19) filled with Grace Throat Seal Li-
quid (TSL). See Fig 2.
Never allow the pump to run dry of material being
pumped. A dry pump will quickly accelerate to a high
speed, possibly damaging itself. If your pump ac-
celerates quickly, or is running too fast, stop it im-
mediately and check the material supply. If the supply
container is empty and air has been pumped into lines,
prime pump and lines with material, or flush and leave
filled with compatible solvent. Be sure to eliminate all air
from fluid system.
Shutdown and Care of Pump
For overnight shutdown, shut off and relieve air
pressure and material pressure according to the
Pressure Relief Procedurewarning on page 3. Always
stop the pump at the bottom of its stroke to keep
material from drying on the exposed displacement rod
and damaging throat packings.
Always flush the pump before the material dries on rod.
If the pump is to be stored for any period of time, and
you are pumping water based material, first flush with
water, then with mineral spirits to protect the pump
parts from rusting.
INSTALL WITH
WRENCH FLATS
AT TOP END
KEY
:
4
5
s
8
10
Throat Packing
Dylacement Rod
Cylinder
Spacer
Bearing
Piston Packing
Intake Valve Housing
Ball Stop Pin
3/a
18 NPT
-8
l6
9
-10
b
11
8314-14 NPT
11 Ball Guide
12 Ball
13 Packing
14 Piston Valve
15 Packing
16 Washer
17 Housing
18 Bearing
19 Nut (Wet-Cup)
20 Washer
4 307-595

t
WARNING
f
TO AVOID SERlOUS BODILY INJURY: Always disconnect air supply and relieve all pressures
before servicing pump. Never operate pump with air myfflfr plates removed. They contain impor-
tant warnings and also protect you from the moving air piston.
/
TROUBLESHOOTING CHART
Problem
Pump fails to operate.
Cause
Restricted line or inadequate
air supply.
Insufficient air pressure.
Closed or clogged air valves,
etc.
Solution
Clear line or increase line size.
Open air valves, clean if
necessary.
Exhausted material supply.
Damaged air motor.
Dried material seizure of
displacement rod (3).
Refill.
Service. See 307-043.
Remove.
Pump operates but output low
on both strokes. Restricted line or inadequate air line supply.
Insufficient air pressure.
Closed or clogged air valves,
etc.
Clear line or increase line size.
Open air valves, clean if
necessary.
Pump operates but output low
on downstroke.
Pump operates but output low
on upstroke.
Exhausted material supply.
Obstrucr:: -aterial line,
valves, ; ,fC.
Worn pat. ; i8 & 13).
Held open or worn fluid in-
take valve.
Held open or worn fluid
piston valve or packing leak-
ing.
Refill.
Clear*.
Replace packings.
Clear, service.
Clear, service.
Erratic or accelerated operation. Exhausted material supply.
Held open or worn fluid in-
take valve.
Refill.
Clear, service.
Held open or worn piston
valve or packing leaking. Clear, service.
*Release pressures and disconnect material line. Reduce the air pressure to 20 psi (1.4 bar). If pump starts when air is turned on
again, the line, etc. is clogged.
Check all other remedies before disassembling pump.
307-595 5

DISPLACEMENT PUMP SERVICE
WARNING
Pressure Relief Procedure
Always relieve the system pressure whenever you
stop spraying, and before installing, removing or
cleaning any parts to avoid serious bodily injury
from high pressure fluid trapped in the system.
Always follow this procedure: shut off the pump,
trigger the spray gun, engage the trigger safety,
and slowly open the drain valve(s). Leave the
drain valve(s) open until you are ready to use the
system again.
Solvent flush material from pump, and follow Pressure
Relief Procedure warning above.
NOTE: If you are using a repair kit to service the
pump, use all the new parts, even if the old
ones look good. The old parts will wear
faster, making pump service needed again
sooner. Repair Kit No. 217531 is available.
Always check the inside of cylinder (5) and outside of
displacement rod (3) carefully for nicks, scratches and
scoring which could cause leaking and premature wear
of packings.
Intake Valve
Screw the intake valve housing (9) off of the cylinder
(5). if the valve is seized on the cylinder, apply
penetrating oil around the threads and gently tap
around the cylinder with a plastic hammer to loosen.
See Fig 2.
Take out the ball guide (ll), pin (10) and ball (12). See
Fig 2. Clean all parts and inspect them carefully for
wear or damage. Lubricate the outside of the packing
(13) with grease compatible to the material being
pumped. Reassemble the vaivsJ using; new parts as
necessary and screw it back 0~1-3 the pgmp cylinder.
Piston, Cylinder and Displacement Rod
Remove the tie rod locknuts (105). See the Compiete
Pump parts drawing. Pull the displacement pump (1 Y 3)
away from the air motor (103). Remove the cotter +:n
(106) and unscrew the pump displacement rod fror
‘e
air motor connecting rod.
Unscrew the cylinder (5) from the pump housinq ).
See Fig 2. Inspect for wear or damage. Replac: ;?e
o-rings (13). Lubricate the outside of the packing : 33)
with grease compatible to the material being pumped.
Push the displacement rod down out of the pump hous-
ing. Secure the rod in a vise and unscrew the piston
(there is Loctite on the threads). Remove the ball (4),
washer (16), u-cup packings (8), spacer (6) and bearing
(7).
Clean ail parts and inspect carefully for wear or damage.
Check the rod carefully for nicks, scratches or wear.
Use new parts where needed and reassemble. Apply
Loctite No. 242 to the piston threads. Lubricate the out-
side of the packings with grease compatible to the
material being pumped before putting the spacer on the
piston. Torque the piston to 15-20 ft-lb
(20.3-27.0 N-m).
NOTE: Notice the difference between the 2 piston
packings (8) and the throat packing (1). See
Fig 3. Be sure to install the packings as
shown.
THROAT
PISTON
Fig 3
Throat Packing
Unscrew the packing nut (19) from the pump housing
(17). Remove the u-cup packing (1) and bearing (18).
Clean and inspect the parts. Install a new bearing (18),
packing (1) and o-ring (13).
To install the new bearing (18), roll it up tight and insert
into the packing nut so it snaps into the groove. See
Fig 4.
Reassemble the pump in reverse order of disassembly.
Lubricate the packings with grease compatible to the
material being pumped. Assemble connecting rod to air
motor and screw locknuts loosely onto tie rods. Use
Loctite No. 242 on the connecting rod threads. Tighten
the packing nut just snug. Finish tightening locknuts
evenly to 35-50 ft-lb (47-68 N-m). Start pump and run
at a slow speed to check tie rods for signs of binding.
Adjust if necessary.
18
Fig 4
8307-595

PARTS DRAWING Asi j’ ,,
+ ~ I, x-1 2,’ :’ ’
‘5
8
15
‘4-
TORQUE TO
15-20 ft-lb
(20.3-27.0 N*m)
L-=-Y
Repair Kit 217-531
For 217-573 Displacement Pump
Consists of:
Ref No. Qw
:
1-
1
1:
2
3
15
1
18
106 1
107 1
PARTS LIST ’ --- -k-
for 217-573 Displacement Pump
for 217-523 Series A Complete Pump
REF PART
NO. NO.
i
“‘178-913
218-054
4101-874
ii 178-889 178884
7 ““178881
8 “‘178-912
9 217-521
10 178-887
1: 178-893 101-917
13 “‘107-078
1: 217-520
l *107-079
1; 217-522 178-911
1: + * 217-519178-885
20 178-983
DESCRlPTlON QTY
SEAL, U-cup, UHMW polyethylene 1
ROD, displacement
1
BALL, bearing, stainless steel, 0.5”
dia 1
CYLINDER 1
SPACER 1
BEARING, piston, Delrin 1
SEAL, piston, U-cup, UHMW
polyethylene 2
VALVE, foot 1
PIN, ball stop 1
GUIDE, ball 1
BALL, bearing, 0.875“
PACKING, o-ring, PTFE
A
VALVE, piston stud
1
PACKING, o-ring, PTFE 1
WASHER
HOUSING, pump
i
BEARING, Delrin
1
NUT, bearing, with wet-cup
1
WASHER
1
REF PART
NO. NO.
101 172-448
102 104088
103 215-383
104 164-722
105 101-586
106 **101-946
107
l *158-082
108 100-078
109 172-443
113 217-573
DESCRIPTION QTY
PLATE, designation
RIVET, blind
:
MOTOR, air, Monark, see 307-043 for
parts
ROD, tie
;
LOCKNUT
3
PIN, cotter, l/8 dia x 1.5” lg
PACKING, o-ring, nitrile rubber
1
SCREW, pan hd thd forming, 8-32 x
0.375”
8
PLATE, instruction
1
DISPLACEMENT PUMP, see
separate list for patts
1
+ ‘Supplied in repair kit 2 17-53 1.
Order parts by name and series letter of the assembly for
which you are ordering.
307-595 7

ACCESSORIES (Must be purchased separately)
PTFE PACKING CONVERSION KIT 217-663
For temperatures above 140°F (60°C).
Consists of:
178-918 (2) Piston Packings
178-919 (1) Throat Seal
AIR PRESSURE REGULATOR and GAUGE 206237
3# psi (21 bar) MAXIMUM WORKING PRESSURE
l/2 NPT INLET
3/8 NPT OUTLET
GROUNDING CLAMP 103-638
GROUND WIRE 206-966
25 ft (7.6 m) lg., 12 ga.
AIR SUPPLY HOSE
175 psi f 12 bar) MAXIMUM WORKING PRESSURE
1/2 in. 10, f/2 nptfml couplings, Buna-N
206-418 6 f-t (1.8 m)
206-216 15 ft (4.6 m)
205-273 25 ft (7.6 m)
208-594 50 ft (15.2 m)
BLEED TYPE MASTER AIR VALVE loo-473
3cKI psi (27 bar) MAXIMUM WORKING PRESSURE
l/2 npt(fbe)
FLUID PRESSURE REGULATOR 217-676
I#90 psi (70 bar) MAXIMUM WORKING PRESSURE
AIR LINE FILTER
250 psi (17.5 bar) MAXIMUM WORKING PRESSURE
106-149 3/8 npt(f)
106-W l/2 npt(f)
AIR LINE OILER
250 osi I1 7.5 bar) MAXIMUM WORKING PRESSURE
214-647 318 npt(f)
214-646 1 I2 npt(f)
GRACO THROAT SEAL LIQUID
Non-evaporating solvent for wet-cup
266-996 1 quart (0.95 liter)
266996 1 gallon (3.8 liter)
66 GAL. (200 liter) SUCTION KIT 208-269
REF PART DESCRIPTION al-Y
NO. NO.
1 156-681 ELBOW, 80°; 3/4 npt;
l-l /2-24 uns thd
2 166-683 PACKING, o-ring 1
3166-682 TUBE, riser 1
ii 176684
ADAPTER, bung 1
100-200 THUMBSCREW 1
6168100 RETAINER, screen
ii 161-377 SCREEN, filter
:
168101 NUT, screen retainer
9
214-961 HOSE, cpld 3/4 npt(mbe)
6 ft (1.8 m) long 1
10 156-588 UNION, 80°; 3/4 npt x
314 npsm 1
‘O--& alms--g
Wetted Parts : Zinc plated steel, aluminum, rubber, Nylon.
MOUNTING HOLE LAYOUT ’ Ir ^ p‘-” ’ ”
181-023
\;J qon5in. diackcle
Two 17164 in dia holes
FLUID OUTLET
FLUID INTAKE
TECHNICAL DATA
Air operating range
Maximum air consumption
Maximum recommended
pump speed
Recommended speed for
optimum pump life
Maximum working pressure
Wetted parts
Weight
20-95 psi (1.5-6.3 bar)
Approximately 15 SCFM per
gallon pumped at 95 psi
60 cycles/min; 1 gpm
15-25 cycles/min; 0.25-0.4 gpm
950 psi (66 bar)
Zinc plated, carbon steel,
stainless steel, PTFE, UHMW
polyethylene, Delrin
23 lb (10.4 kg)
THE GRACO WARRANN
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 ap-
plies 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, Grace will repair or replace
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 soId by Grace that are not manufactured
by Grace (such as electric motors, switches, hose, etc.) are subject to
the warranty, if any, of their manufacturer. Grace will provide
purchaser with reasonable assistance in making such claims.
Factory Brancher:Atlenta, Dallas, Detroit, Los Angeles. West Celdw 4 (N.J.1
Subsidiary and Affiliate CompaniesCanada; England; Switzerland,
* France; Germany; Hong Kong; Japan
GRACO INC. P. 0. Box 1441 MINNEAPOLIS, MN 55440-1444
PRINTED IN U.S.A. 307-595 11-82