Graco Water Pump 204287 User Manual

INSTRUCTIONS–PARTS LIST  
306–646  
Rev R  
This manual contains IMPORTANT  
WARNINGS AND INSTRUCTIONS  
READ AND RETAIN FOR REFERENCE  
Supersedes P  
BULLDOGr and KINGt PUMPS  
DRUM LENGTH, WITH PRIMING PISTON  
10:1 RATIO BULLDOG PUMPS  
100 psi (7 bar) MAXIMUM AIR WORKING PRESSURE  
1000 psi (70 bar) MAXIMUM FLUID WORKING PRESSURE  
Model 204–287, Series K  
With Standard Air Motor  
Model 215–873, Series B  
With Quiet Air Motor  
Model 222–526, Series A  
With Standard Air Motor and Severe–Duty Displacement Pump  
Model 223–984, Series A  
With Quiet Air Motor and Severe–Duty Displacement Pump  
20:1 RATIO KING PUMPS  
90 psi (6 bar) MAXIMUM AIR WORKING PRESSURE  
1800 psi (124 bar) MAXIMUM FLUID WORKING PRESSURE  
Model 222–248, Series A  
With Standard Air Motor  
Model 222–539, Series A  
With Standard Air Motor and Severe–Duty Displacement Pump  
Model 223–991, Series A  
With Quiet Air Motor and Severe–Duty Displacement Pump  
TABLE OF CONTENTS  
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,  
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3
4
4
5
6
7
.
Troubleshooting Guide  
Displacement Pump Service  
Parts Drawing – Standard Pumps  
Parts List – Standard Pumps . . . . . . . . . . . . . . . . . . . . 13  
Parts Drawing – Severe–Duty Pumps . . . . . . . . . . . . 14  
. . . . . . . . . . . . . . . . 15  
. . . . . . . . . . . . 13, 15  
.
. . . . . . . . . . . . . . . . . . . . . . . . . .  
.
. . . . . . . . . . . . . . . . . . 8–11  
. . . . . . . . . . . . . . . 12  
.
.
.
Parts List – Severe–Duty Pumps  
How To Order Replacement Parts  
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16–18  
.
.
Dimensional Drawing  
Mounting Hole Layout  
.
.
. . . . . . . . . . . . . . . . . . . . . . . . . . 19  
. . . . . . . . . . . . . . . . . . . . . . . . . . 19  
Technical Data  
.
. . . . . . . . . . . . . . . . . . . . . . . . Back Cover  
Model 204–287 Shown  
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
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EQUIPMENT MISUSE HAZARD  
General Safety  
System Pressure  
Any misuse of the spray/dispensing equipment or accessories, such as  
The 10:1 Bulldog Pump develops 1000 psi (70 bar) MAXIMUM WORK  
-
-
overpressurizing, modifying parts, using incompatible chemicals and flu  
ids, or using worn or damaged parts, can cause them to rupture and result  
in fluid injection, splashing in the eyes or on the skin, or other serious bod  
ily injury, or fire, explosion or property damage.  
-
ING PRESSURE at 100 psi (7 bar) air pressure. The 20:1 King Pump de  
velops 1800 psi (124 bar) MAXIMUM WORKING PRESSURE at 90 psi  
(6 bar) air pressure. Never exceed these pressures.  
-
Be sure that all spray/dispensing equipment and accessories are rated to  
withstand the maximum working pressure of the pump. DO NOT exceed  
the maximum working pressure of any component or accessory used in  
the system.  
NEVER alter or modify any part of this equipment; doing so could cause it  
to malfunction.  
Fluid Compatibility  
BE SURE that all fluids and solvents used are chemically compatible with  
the wetted parts shown in the TECHNICAL DATA on the back cover Al-  
ways read the manufacturer  
this pump.  
CHECK all spray/dispensing equipment regularly and repair or replace  
worn or damaged parts immediately  
.
.
Always wear protective eyewear, gloves, clothing and respirator as rec  
ommended by the fluid and solvent manufacturer  
-
s literature before using fluid or solvent in  
.
HOSE SAFETY  
High pressure fluid in the hoses can be very dangerous. If the hose devel  
ops a leak, split or rupture due to any kind of wear, damage or misuse, the  
high pressure spray emitted from it can cause a fluid injection injury or  
other serious bodily injury or property damage.  
-
HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on hoses to  
move equipment. Do not use fluids which are not compatible with the in  
-
-
ner tube and cover of the hose. DO NOT expose Graco hoses to tem  
peratures above 82_  
C
(180_ F) or below –40_  
C
(–40_ F).  
ALL FLUID HOSES USED WITH A FLEXING MOTION MUST HAVE  
SPRING GUARDS ON BOTH ENDS! The spring guards help protect  
the hose from kinks or bends at or close to the coupling which can result  
in hose rupture.  
Hose Grounding Continuity  
Proper hose grounding continuity is essential to maintaining a grounded  
spray system. Check the electrical resistance of your air and fluid hoses  
at least once a week. If your hose does not have a tag on it which speci  
-
TIGHTEN all fluid connections securely before each use. High pressure  
fluid can dislodge a loose coupling or allow high pressure spray to be  
emitted from the coupling.  
fies the maximum electrical resistance, contact the hose supplier or  
manufacturer for the maximum resistance limits. Use a resistance meter  
in the appropriate range for your hose to check the resistance. If the resis  
tance exceeds the recommended limits, replace it immediately. An un  
-
-
NEVER use a damaged hose. Before each use, check the entire hose for  
cuts, leaks, abrasion, bulging cover, or damage or movement of the hose  
couplings. If any of these conditions exist, replace the hose immediately  
grounded or poorly grounded hose can make your system hazardous.  
Also, read FIRE OR EXPLOSION HAZARD, below  
.
.
DO NOT try to recouple high pressure hose or mend it with tape or any  
other device. A repaired hose cannot safely contain the high pressure  
fluid.  
FIRE OR EXPLOSION HAZARD  
Static electricity is created by the flow of fluid through the pump and hose.  
If every part of the spray/dispensing equipment is not properly grounded,  
sparking may occur, and the system may become hazardous. Sparking  
may also occur when plugging in or unplugging a power supply cord.  
Sparks can ignite fumes from solvents and the fluid being sprayed, dust  
Grounding  
To reduce the risk of static sparking, ground the pump, object being  
sprayed, and all other spray/dispensing equipment used or located in the  
spray/dispensing area. CHECK your local electrical code for detailed  
grounding instructions for your area and type of equipment. BE SURE to  
ground all of this spray/dispensing equipment:  
particles and other flammable substances, whether you are spraying/dis  
pensing indoors or outdoors, and can cause a fire or explosion and seri  
ous bodily injury and property damage. Do not plug in or unplug any  
power supply cords in the spray/dispensing area when there is any  
-
-
1. Pump: use a ground wire and clamp. See Fig 1.  
2. Air hoses: use only grounded air hoses.  
3. Fluid hoses: use only grounded fluid hoses.  
chance of igniting fumes still in the air  
.
If you experience any static sparking or even a slight shock while using  
this equipment, STOP SPRAYING IMMEDIATELY. Check the entire sys  
-
4. Air compressor: follow manufacturers recommendations.  
tem for proper grounding. Do not use the system again until the problem  
has been identified and corrected.  
5. Spray gun/dispensing valve: grounding is obtained through con-  
nection to a properly grounded fluid hose and pump.  
To ground the pump:  
6. Fluid supply container: according to your local code.  
7. Object being sprayed: according to your local code.  
To ground the pump, loosen the grounding lug locknut (W) and  
washer (X). Insert one end of a 1.5 mm@ (12 ga) minimum ground  
wire (Y) into the slot in lug (Z) and tighten the locknut securely. See  
Fig 1. Connect the other end of the wire to a true earth ground. See  
ACCESSORIES on page 16 to order a ground wire and clamp.  
8. All solvent pails used when flushing, according to your local code.  
Use only metal pails, which are conductive, placed on a grounded  
surface. Do not place the pail on a nonconductive surface, such as  
Y
paper or cardboard, which interrupts the grounding continuity  
.
W
9.  
To maintain grounding continuity when flushing or relieving pres-  
sure, always hold a metal part of the gun/valve firmly to the side of a  
grounded metal pail, then trigger the gun/valve.  
Z
Flushing Safety  
Before flushing, be sure the entire system and flushing pails are properly  
grounded. Refer to Grounding, above. Follow the Pressure Relief  
Procedure on page 2, and remove the spray tip/nozzle from the  
gun/valve. Always use the lowest possible fluid pressure, and maintain  
firm metal–to–metal contact between the gun/valve and the pail during  
flushing to reduce the risk of fluid injection injury , static sparking and  
splashing.  
X
Fig  
1
IMPORTANT  
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These standards – particularly the Gen  
-
eral Standards, Part 1910, and the Construction Standards, Part 1926 – should be consulted.  
3
306–646  
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INSTALLATION  
TYPICAL INSTALLATION  
Y
F
E
J
K
D
C
A
G
N
M
KEY  
B
4
A
B
C
D
E
F
G
H
J
K
L
Air Supply Hose to Pump  
Air Line Filter  
Air Regulator and Gauge  
Bleed–Type Master Air Valve  
Air Line Lubricator  
Pump Runaway Valve  
Bleed–Type Master Air Valve  
Fluid Drain Valve  
L
Air–Powered Ram  
H
Gun/Dispensing Valve  
Grounded Fluid Supply Hose  
Whip Hose  
M
N
Y
4
Air Supply Hose to Ram  
Pump Ground Wire  
Pump Bleeder Valve  
The reference numbers and letters in the text refer to the  
callouts in Figures 1–3 and the Parts Drawings.  
WARNING  
Two accessories are required in your system: a  
bleed–type master air valve (D) and a fluid drain  
valve (H). These accessories help reduce the risk of  
serious bodily injury including fluid injection, splash  
ing in the eyes or on the skin, and injury from moving  
parts if you are adjusting or repairing the pump.  
See pages 16–18 for accessories available from Graco.  
Be sure all accessories are properly sized to withstand  
the pressures in the system.  
-
The Typical Installation shown above is only a guide to  
selecting and installing required and optional accesso-  
ries. For assistance in designing a system to suit your  
particular needs, contact your Graco representative.  
The bleed–type master air valve relieves air trapped  
between this valve and the pump after the air is shut  
Trapped air can cause the pump to cycle unex-  
pectedly. Locate the valve close to the pump.  
off.  
The Dimensional Drawing on page 19 provides neces-  
sary measurements for mounting the pump. If you use an  
accessory ram (J), as shown in the T ypical Installation,  
refer to the separate ram manual for mounting dimension  
requirements.  
The fluid drain valve assists in relieving fluid pres-  
sure in the displacement pump, hose and spray gun;  
triggering the spray gun to relieve pressure may not  
be sufficient.  
System Accessories  
Install the air line accessories in the order shown in the  
Typical Installation. Working upstream from the pump air  
inlet, install a pump runaway valve (F) to shut off the air to  
the pump if the pump accelerates beyond the pread-  
justed setting. A pump which runs too fast can be seri-  
ously damaged.  
Install a fluid drain valve (H) close to the pump fluid outlet.  
Then connect a grounded fluid supply hose (L). Be-  
tween the fluid supply hose (L) and the gun/dispensing  
valve (K), install a whip hose (M) for greater flexibility  
.
NOTE: To use the optional fluid outlet at the base of the  
Next, install an air line lubricator (E) for automatic air mo  
-
air motor, connect a riser tube between the stan  
dard outlet and the optional outlet.  
-
tor lubrication, a bleed–type master air valve (D) to re-  
lieve air trapped between the valve and the pump, an air  
regulator (C) to control pump speed, and an air line filter  
(B) to remove harmful dirt and moisture from the com-  
pressed air supply. Install a second bleed valve (G) on  
the pump air line to isolate the accessories for servicing.  
GROUNDING  
WARNING  
Before operating the pump, ground the system as  
explained under FIRE OR EXPLOSION HAZARD  
and Grounding on page 3.  
Be sure the pump air line (A) is properly grounded, and is  
large enough to supply an adequate volume of air to the  
motor. An air–powered ram (J) requires a separate  
grounded air supply line (N).  
4
306–646  
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OPERATION  
Starting and Adjusting the Pump  
WARNING  
1. Make sure the air regulator (C), drain valve (H), and  
pump bleeder valve (4) are closed.  
Pressure Relief Procedure  
To reduce the risk of serious bodily injury, including  
fluid injection, splashing in the eyes or on the skin,  
or injury from moving parts, always follow this pro  
cedure whenever you shut of f the pump, when  
checking or servicing any part of the spray/dis-  
pensing system, when installing, cleaning or  
changing spray tips/nozzles, and whenever you  
stop spraying/dispensing.  
2. Open the bleed–type master air valve (D).  
-
3. Hold a metal part of the gun/valve firmly to the side of  
a
grounded metal pail, and trigger the gun/valve.  
4. Slowly open the air regulator (C) until the pump starts  
running slowly and smoothly (about 20 psi [1.4 bar]).  
Cycle the pump slowly until all the air is purged from  
the pump and lines.  
1. Engage the gun/valve safety latch.  
2. Shut off the air to the pump.  
3. Close the bleed–type master air valve (re-  
quired in your system).  
5. If the pump is not priming properly, open the bleeder  
valve (4) slightly. Do not open it all the way; the han  
-
4. Disengage the gun/valve safety latch.  
dle can come off. Cover the bleeder valve hole with  
something other than your hand or fingers and  
use it as a priming valve until the fluid appears at the  
bleeder hole. Close the bleeder valve.  
5. Hold a metal part of the gun/valve firmly to the  
side of a grounded metal pail, and trigger the  
gun/valve to relieve pressure.  
6. Engage the gun/valve safety latch.  
7. Open the drain valve and/or the pump bleeder  
valve (required in your system), having a con-  
tainer ready to catch the drainage.  
WARNING  
To reduce the risk of fluid injection, DO NOT use  
your hand or fingers to cover the bleeder hole when  
priming the pump.  
8. Leave the drain valve open until you are ready  
to dispense again.  
If you suspect that the spray tip/nozzle or hose is  
completely clogged, or that pressure has not been  
fully relieved after following the steps above,  
VERY SLOWLY loosen the tip guard retaining nut,  
nozzle or hose end coupling and relieve pressure  
gradually, then loosen completely. Now clear the  
tip/nozzle or hose.  
6. Release the trigger and engage the safety latch. The  
pump will stall against pressure.  
7. In a direct supply system, the pump will start and stop  
as the gun/valve is opened and closed. In a circulat  
-
ing system, it will run continuously and speed up or  
slow down as the system demands. Always use the  
lowest pressure necessary to obtain the desired re  
-
WARNING  
sults.  
Moving parts can pinch or amputate your fingers or  
other body parts. When the pump is operating, the  
priming piston (located at the pump intake) and the  
air motor piston (located behind the air motor shield)  
move. Therefore, NEVER operate the pump with  
the air motor shield removed, and keep your fingers  
and hands away from the priming piston.  
WARNING  
To reduce the risk of serious bodily injury, including  
fluid injection and splashing in the eyes or on the  
skin, and property damage, never exceed the maxi  
mum air and fluid working pressure of the lowest  
rated component in your system. See EQUIPMENT  
MISUSE HAZARD, System Pressure, on page 3.  
-
Before attempting to clear an obstruction from the  
priming piston or service the pump, follow the Pres  
-
sure Relief Procedure Warning above to prevent  
the pump from starting accidentally  
.
Never allow the pump to run dry of the fluid being  
pumped. A dry pump will quickly accelerate to a high  
speed, possibly damaging itself. If your pump acceler-  
ates quickly, or is running too fast, stop it immediately and  
check the fluid supply. If the supply container is empty  
and air has been pumped into the lines, prime the pump  
and the lines with fluid, or flush the pump and leave it filled  
with a compatible solvent. Be sure to eliminate all air from  
the fluid system.  
Flush the Pump Before Using  
This pump was tested with lightweight motor oil which  
was left in to protect the pump parts. o prevent contami-  
T
nation of the fluid being pumped, flush the pump with a  
compatible solvent before using it. If the pump is being  
used to supply a circulating system, allow the solvent to  
circulate until the pump and lines are thoroughly flushed.  
Keep the packing nut/wet–cup (21) one–half full with  
Graco Throat Seal Liquid (TSL), to help prevent the fluid  
being pumped from drying on the displacement rod and  
damaging the packings.  
NOTE: A pump runaway valve (F) can be installed on  
the air line to automatically shut off the pump if it  
starts to run too fast.  
5
306–646  
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MAINTENANCE  
Shutdown and Care of the Pump  
metal part of the gun/valve firmly to the side of a  
grounded metal pail and use the lowest possible fluid  
pressure during flushing.  
Always follow the Pressure Relief Procedure Warning  
on page 7 whenever you shut of f the pump. Stop the  
pump at the bottom of its stroke to keep fluid from drying  
on the exposed displacement rod and damaging the  
throat packings.  
Lubrication  
The accessory air line lubricator (E) provides automatic  
air motor lubrication. For daily , manual lubrication, dis-  
connect the air regulator (C), place about 15 drops of light  
machine oil in the pump air inlet, reconnect the regulator  
Every 40 hours of operation, check that the packing nut/  
wet–cup (21) is tight. Follow the Pressure Relief Proce  
-
and turn on the air supply to blow oil into the motor  
.
dure  
Warning on page 7 first. Tighten just snug – do not  
overtighten or the packings may be damaged.  
Corrosion Protection  
WARNING  
Water, or even moist air, can cause your pump to  
corrode. o help prevent corrosion, never leave the  
pump filled with water or air. After normal flushing,  
flush the pump again with mineral spirits or oil–  
Always flush the pump before the fluid dries in the pump  
and hoses. If the pump is to be stored for any period of  
time, and you are pumping water–based fluid, first flush  
the pump with water, then with mineral spirits to protect  
the pump parts.  
T
based solvent, relieve pressure, and leave the min  
-
Flushing  
eral spirits in the pump. Be sure to follow all steps  
of the Pressure Relief Procedure W arning on  
page 7.  
To reduce the risk of fluid injection injury, static sparking,  
or splashing in the eyes or on the skin, follow the Pres-  
sure Relief Procedure Warning on page 7, and remove  
the spray tip (spray guns only) before flushing . Hold a  
6
306–646  
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TROUBLESHOOTING GUIDE  
WARNING  
Pressure Relief Procedure  
To reduce the risk of serious bodily injury  
,
including fluid injec  
-
6. Engage the gun/valve safety latch.  
tion, splashing in the eyes or on the skin, or injury from moving  
parts, always follow this procedure whenever you shut off the  
7. Open the drain valve and/or the pump bleeder valve (re  
-
quired in your system), having a container ready to catch  
the drainage.  
pump, when checking or servicing any part of the spray/dis  
-
pensing system, when installing, cleaning or changing spray  
tips/nozzles, and whenever you stop spraying/dispensing.  
8. Leave the drain valve open until you are ready to use the  
system again.  
1. Engage the gun/valve safety latch.  
2. Shut off the air to the pump.  
If you suspect that the spray tip/nozzle or hose is completely  
3. Close the bleed–type master air valve (required in your  
system).  
clogged, or that pressure has not been fully relieved after fol  
-
lowing the steps above, VERY SLOWLY loosen the tip guard  
4. Disengage the safety latch.  
retaining nut, nozzle, or hose end coupling and relieve pres  
sure gradually, then loosen completely. Now clear the tip/noz  
zle or hose.  
-
-
5. Hold a metal part of the gun/valve firmly to the side of a  
grounded metal pail, and trigger the gun/valve to relieve  
pressure.  
NOTE: Check everything in the troubleshooting guide below before disassembling the pump.  
PROBLEM  
CAUSE  
SOLUTION  
Pump fails to operate  
Exhausted fluid supply  
Refill and reprime or flush.  
Restricted line or inadequate air supply  
Clear; see TECHNICAL DATA on back cover  
.
Insufficient air pressure, closed or clogged air  
valves, etc.  
Open, clear  
.
Obstructed fluid hose or gun/valve  
Fluid dried on the displacement rod  
Dirty or worn air motor parts  
Clear.*  
Clean. See SERVICE.  
Clean, service. See air motor manual, supplied.  
Exhausted fluid supply  
Refill and reprime or flush.  
Pump operates but output  
low on both strokes  
Restricted line or inadequate air supply  
Clear. See TECHNICAL DATA on back cover  
.
Insufficient air pressure, closed or clogged air  
valves, etc.  
Open, clear  
.
Obstructed fluid hose or gun/valve  
Bleeder valve open or worn  
Clear.*  
Close; replace.  
Air leaking into supply drum  
Check inductor or ram plate seal.  
Fluid too heavy for pump priming  
Use pump bleeder valve (see page 5). Use inductor or  
ram unit.  
Worn throat packings in displacement pump  
Replace gland/packing stack.  
Fluid too heavy for pump priming  
Use pump bleeder valve (see page 5). Use inductor or  
ram unit.  
Pump operates but output  
low on downstroke  
Held open or worn intake valve or packings  
Held open or worn piston valve or packings  
Clear valve; replace gland/packing stack.  
Clear valve; replace gland/packing stack.  
Pump operates but output  
low on upstroke  
Exhausted fluid supply  
Refill and reprime or flush.  
Erratic or accelerated  
pump speed  
Fluid too heavy for pump priming  
Use pump bleeder valve (see page 5). Use inductor or  
ram unit.  
Held open or worn piston valve or packings  
Held open or worn intake valve or packings  
Clear valve; replace packings.  
Clear valve; replace gland/packing stack.  
Replace gland/packing stack.  
Worn throat packings in displacement pump  
*
To clear the pump, follow the Pressure Relief Procedure Warning, above. Disconnect the fluid line. If the pump starts when the  
air is turn on, then the fluid hose or gun/valve is obstructed.  
7
306–646  
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DISPLACEMENT PUMP SERVICE  
5. Pull the cylinder (39) down out of the outlet housing  
WARNING  
(26). Inspect the inner surface of the cylinder and the  
outer surface of the displacement rod (18) for  
scratches or scoring, which can cause premature  
Moving parts can pinch or amputate your fingers or  
other body parts. When the pump is operating, the  
priming piston (located at the pump intake) and the  
air motor piston (located behind the air motor  
shield) move. Therefore, NEVER operate the pump  
with the air motor shield removed, and keep your  
fingers and hands away from the priming piston.  
packing wear and leaking. T check, run a finger over  
o
the surface or hold the part up to the light at an angle.  
6. Disassemble the intake valve (3). Clean and inspect  
all parts, replacing as necessary . Check the intake  
valve seat (30) for nicks or damage.  
Before attempting to clear an obstruction from the  
priming piston or service the pump, follow the Pres-  
7. Unscrew the upper cap (33) from the connecting rod  
(20). Pull the displacement rod (18) off the lower cap  
sure Relief Procedure Warning on page 7 to pre  
-
(19), and remove the piston assembly from the con  
necting rod. Disassemble the piston.  
-
vent the pump from starting accidentally  
.
8. Unscrew the packing nut/wet–cup (21). Remove the  
wiper seal (66). Remove the throat packings from the  
outlet housing (26).  
Before You Start (All Models)  
1. Repair Kit 220–861 is available. See pages 13 and  
15. For the best results, use all the new parts in the  
kit, even if the old ones look good. Repair kit parts are  
indicated in the text and the parts list with an asterisk,  
for example (27*).  
9. Clean and inspect all parts, replacing as necessary  
.
Reassembly  
NOTE: Refer to Fig 2 and the parts drawing during the  
following procedure.  
2. To reduce down time, keep spare parts on hand.  
Recommended spare parts are indicated in the parts  
list with a double asterisk, for example (41**).  
1. See Detail A of Fig 2. The gland/packing stack (64*)  
for the throat is preassembled. Do not disassemble  
the stack. Lubricate the gland/packing stack and in  
-
3. The gland/packing stacks (64*, 65*) are preas-  
stall it into the outlet housing (26). Be sure the lips of  
the v–packings are facing down. Install the wiper  
seal (66) in the groove of the wet–cup (21) with the  
lips facing down. Loosely install the packing nut/wet–  
cup (21).  
sembled. Do not disassemble the stacks when in  
-
stalling them in the pump.  
4. For air motor service and parts information, refer to  
manual 307–049 for motor Model 208–356, manual  
306–968 for motor Model 206–647, manual 307–304  
for motor Model 215–255, or manual 307–741 for  
motor Model 220–106.  
2. See Detail B of Fig 2. Install the two bearings (35*)  
and the u–cup packing (56*) on the piston (38). Be  
sure the lips of the packing are facing up. Install the  
small o–ring (15) in the lower cap (19) and the larger  
o–ring (17) on the outside of the lower cap.  
5. If possible, flush the pump before service with a com  
patible solvent. Follow the Pressure Relief Proce-  
dure arning on page 7. Stop the pump at the bot  
tom of its stroke.  
-
W
-
3. Install the piston (38), valve plate (34), and lower cap  
(19) on the connecting rod (20).  
6. Disconnect all the hoses. Remove the pump from its  
mounting and clamp it in a vise.  
4. Insert the connecting rod (20) into the displacement  
rod (18) so the lower cap (19) fits into the bottom of  
the displacement rod. Screw the top cap (33) onto  
the connecting rod (20) until it is tight against the top  
of the displacement rod (18).  
Model 204–641 Displacement Pump (Used on  
Models 204–287, 215–873 and 222–248)  
Disassembly  
5. Install one copper gasket (27*) in the outlet housing  
(26). Screw the priming rod (32) into the connecting  
rod (20) and secure with the pin (7). Push the dis-  
placement rod (18) and priming rod (32) up into the  
outlet housing (26) so the top of the displacement rod  
just protrudes from the packing nut/wet–cup (21).  
Lubricate the priming rod (32).  
NOTE: Refer to Fig 2 and the parts drawing.  
1. Remove the cotter pin (41). Unscrew the coupling  
nut (50) and the three tie rod locknuts (44). Pull the  
displacement pump (2) off the air motor (1).  
2. Remove the cotter pin (42). Loosen the locknut (45).  
Unscrew the connecting rod (53) from the upper cap  
(33).  
6. Install the cylinder (39) in the outlet housing (26), be  
ing careful not to scratch the polished inner surface  
of the cylinder  
-
.
3. Insert a 1/4 in. (6 mm) diameter rod in the holes of the  
packing nut/wet–cup (21), and loosen it. Push the  
displacement rod (18) down until the priming piston  
(37) clears the intake valve housing (28). Remove  
the nut (6), priming piston (37), valve plate (36) and  
plate guide (31).  
7. See Detail C of Fig 2. Slide the intake valve gland/  
packing stack (65*) into the intake valve seal housing  
(3). Do not disassemble the stack. Be sure the lips  
of the v–packings are facing up. Tighten the packing  
nut (11). Install the valve seat (30) in the intake valve  
housing (28). Place the intake valve seal housing (3)  
on the seat (30).  
4. Unscrew the four tie bolts (8) and pull the intake valve  
housing (28) off the pump. Pull the priming rod (32)  
and displacement rod (18) out of the bottom of the  
cylinder (39). Remove the pin (7) and unscrew the  
priming rod (32) from the connecting rod (20).  
8. Install two copper gaskets (27*) on the intake valve  
stop (29). Install the stop in the intake valve housing  
(28).  
8
306–646  
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9. Carefully guide the intake valve housing (28) up over  
the priming rod (32) and install it on the cylinder (39).  
Insert the four tie bolts (8) through the outlet housing  
rod, tighten the tie bolt (8) on the side which is bind  
-
ing.  
13. Screw the connecting rod (53) into the upper cap  
(26) and engage the holes in the intake valve hous  
-
(33). Insert the cotter pin (42) and tighten the locknut  
(45).  
ing. Torque the tie bolts oppositely and evenly to 60  
ft–lb (82 N.m).  
14. Align the pump outlet on the outlet housing (26) with  
the optional outlet at the base of the air motor (1).  
Loosely screw the tie rod locknuts (44) onto the tie  
rods (52). Lubricate the o–ring (47) and the top  
thread of the connecting rod (53). TIghten the cou-  
pling nut (50) to attach the displacement pump to the  
motor. Insert the cotter pin (41).  
10. Install the plate guide (31), plate (36), priming piston  
(37) and nut (6) on the priming rod (32). If necessary  
,
push down on the displacement rod (18) to provide  
sufficient clearance from the intake valve housing  
(28).  
11.  
T
ighten the packing nut/wet–cup (21) just enough to  
prevent leakage – no tighter  
.
15. Start the pump and run it slowly to check for binding.  
Adjust the tie rods as necessary , then torque the  
locknuts (44) to 40–50 ft–lb (54–68 N.m).  
12. Check the alignment of the displacement rod (18) by  
inserting a size E (0.254 in. diameter) drill shank be  
tween the packing nut/wet–cup (21) and the rod. If  
the drill shank cannot be passed freely around the  
-
16. Reconnect the fluid and air lines. Reconnect the  
ground wire if it was disconnected during service.  
DISPLACEMENT PUMP 204–641  
DETAIL A  
50  
REF. NO. 2  
18  
21  
41  
DISPLACEMENT  
PUMP INCLUDES  
ITEMS 3–39, 56–66  
REF  
REF  
53  
LIPS OF  
V–PACKINGS  
64*  
THROAT  
45  
33  
21  
MUST  
GLAND/  
FACE  
52  
4
PACKING  
DOWN  
42  
20  
STACK  
18  
66  
26  
26  
REF  
DETAIL B  
*56  
LIPS OF  
ACKING  
MUST  
8
P
TORQUE TO  
60 ft–lb  
(82 N.m)  
44  
F
ACE UP  
TORQUE T  
O
40–50 ft–lb  
(54–68 N.m)  
SEE DETAIL A  
*35  
*15  
34  
38  
REF  
27*  
38  
7
17*  
19  
29  
SEE DETAIL B  
DETAIL  
C
*27  
39  
11  
REF  
28  
*65  
INTAKE  
VALVE  
GLAND/  
PACKING  
STACK  
LIPS OF  
V–PACKINGS  
MUST  
3
11  
32  
FACE UP  
SEE DETAIL C  
31  
28  
30  
3
REF  
36  
37  
6
Fig 2  
9
306–646  
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3. Install the piston (38), valve plate (34), and adapter  
(61) on the displacement rod (60).  
Model 222–638 Displacement Pump  
(Used on Models 222–526, 222–539, 223–984  
and 223–991)  
4. Thread the connecting rod (62) into the adapter (61)  
and secure with the pin (7).  
NOTE: Before beginning, read “Before Y ou Start” on  
page 8.  
5. Install one copper gasket (27*) in the outlet housing  
(26). Push the displacement rod (60) and priming rod  
(62) up into the outlet housing (26) so the top of the  
displacement rod just protrudes from the packing  
nut/wet–cup (21). Lubricate the priming rod (62).  
Disassembly  
NOTE: Refer to Fig 3 and the parts drawing during the  
following procedure.  
1. Remove the cotter pin (41). Unscrew the coupling  
nut (50) and the three tie rod locknuts (44). Pull the  
displacement pump (2) off the air motor (1).  
6. Install the cylinder (59) in the outlet housing (26), be  
ing careful not to scratch the polished inner surface  
of the cylinder  
-
.
2. Remove the cotter pin (42). Loosen the locknut (45).  
7. See Detail C of Fig 3. Slide the intake valve gland/  
packing stack (65*) into the intake valve seal housing  
(3). Do not disassemble the stack. Be sure the lips  
Unscrew the connecting rod (53) from the displace  
ment rod (60).  
-
of the v–packings are facing up. Tighten the packing  
3. Insert a 1/4 in. (6 mm) diameter rod in the holes of the  
packing nut/wet–cup (21), and loosen it. Push the  
displacement rod (60) down until the priming piston  
(37) clears the intake valve housing (28). Remove  
the nut (6), priming piston (37), valve plate (36) and  
plate guide (31).  
nut (11). Install the valve seat (30) in the intake valve  
housing (28). Place the intake valve seal housing (3)  
on the seat (30).  
8. Install two copper gaskets (27*) on the intake valve  
stop (29). Install the stop in the intake valve housing  
(28).  
4. Unscrew the four tie bolts (8) and pull the intake valve  
housing (28) off the pump. Pull the priming rod (62)  
and displacement rod (60) out of the bottom of the  
cylinder (59). Remove the pin (7) and unscrew the  
priming rod (62) from the adapter (61).  
9. Carefully guide the intake valve housing (28) up over  
the priming rod (62) and install it on the cylinder (59).  
Insert the four tie bolts (8) through the outlet housing  
(26) and engage the holes in the intake valve hous  
-
ing. Torque the tie bolts oppositely and evenly to 60  
ft–lb (82 N.m).  
5. Pull the cylinder (59) down out of the outlet housing  
(26). Inspect the inner surface of the cylinder and the  
outer surface of the displacement rod (18) for  
10. Install the plate guide (31), plate (36), priming piston  
scratches or scoring, which can cause premature  
(37) and nut (6) on the priming rod (62). If necessary  
,
packing wear and leaking. T check, run a finger over  
o
push down on the displacement rod (60) to provide  
sufficient clearance from the intake valve housing  
(28).  
the surface or hold the part up to the light at an angle.  
6. Disassemble the intake valve (3). Clean and inspect  
all parts, replacing as necessary . Check the intake  
valve seat (30) for nicks or damage.  
11.  
T
ighten the packing nut/wet–cup (21) just enough to  
prevent leakage – no tighter  
.
7. Unscrew the adapter (61) from the displacement rod  
(60). Remove and inspect the piston (38). Disas-  
semble the piston.  
12. Check the alignment of the displacement rod (60) by  
inserting a size E (0.254 in. diameter) drill shank be  
tween the packing nut/wet–cup (21) and the rod. If  
the drill shank cannot be passed freely around the  
rod, tighten the tie bolt (8) on the side which is bind  
ing.  
-
-
-
8. Unscrew the packing nut/wet–cup (21). Remove the  
wiper seal (66). Remove the throat packings from the  
outlet housing (26).  
13. Screw the connecting rod (53) into the top of the dis  
placement rod (60). Insert the cotter pin (42) and  
tighten the locknut (45).  
9. Clean and inspect all parts, replacing as necessary  
.
Reassembly  
NOTE: Refer to Fig 3 and the parts drawing during the  
following procedure.  
14. Align the pump outlet on the outlet housing (26) with  
the optional outlet at the base of the air motor (1).  
Loosely screw the tie rod locknuts (44) onto the tie  
rods (52). Lubricate the o–ring (47) and the top  
thread of the connecting rod (53). TIghten the cou-  
pling nut (50) to attach the displacement pump to the  
motor. Insert the cotter pin (41).  
1. See Detail A of Fig 3. The gland/packing stack (64*)  
for the throat is preassembled. Do not disassemble  
the stack. Lubricate the gland/packing stack and in  
-
stall it into the outlet housing (26). Be sure the lips of  
the v–packings are facing down. Install the wiper  
seal (66) in the groove of the wet–cup (21) with the  
lips facing down. Loosely install the packing nut/wet–  
cup (21).  
15. Start the pump and run it slowly to check for binding.  
Adjust the tie rods as necessary , then torque the  
locknuts (44) to 40–50 ft–lb (54–68 N.m).  
2. See Detail B of Fig 3. Install the two bearings (35*)  
and the u–cup packing (56*) on the piston (38). Be  
sure the lips of the packing are facing up.  
10 306–646  
16. Reconnect the fluid and air lines. Reconnect the  
ground wire if it was disconnected during service.  
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DISPLACEMENT PUMP 222–638  
REF. NO. 2  
DISPLACEMENT  
PUMP INCLUDES  
ITEMS 3–38, 56–66  
DETAIL  
A
50  
53  
60  
REF  
21  
REF  
41  
LIPS OF  
V–PACKINGS  
MUST  
64*  
45  
60  
THROAT  
GLAND/  
PACKING  
STACK  
FACE  
DOWN  
42  
21  
52  
4
26  
REF  
66  
26  
DETAIL  
B
8
TORQUE TO  
*56  
LIPS OF  
60 ft–lb (82 N.m)  
44  
P
ACKING  
MUST  
ACE UP  
TORQUE TO  
40–50 ft–lb  
(54–68 N.m)  
F
SEE DETAIL A  
*35  
38  
REF  
34  
61  
7
27*  
38  
29  
SEE DETAIL B  
DETAIL C  
59  
11  
REF  
*27  
11  
*65  
INTAKE  
VALVE  
GLAND/  
PACKING  
STACK  
28  
LIPS OF  
V–PACKINGS  
MUST  
3
FACE UP  
62  
31  
SEE DETAIL C  
3
REF  
30  
28  
36  
37  
6
Fig 3  
11  
306–646  
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PARTS DRAWING – STANDARD PUMPS  
Model 222–248, Series A  
Model 215–873, Series B  
20:1 Ratio King Pump with Standard Air Motor  
10:1 Ratio Bulldog Pump with Quiet Air Motor  
Includes items 1–66  
Includes items 1–66  
Model 204–287, Series K  
10:1 Ratio Bulldog Pump with Standard Air Motor  
Includes items 1–66  
LIPS OF  
V–PACKINGS MUST  
FACE DOWN  
1
(MODEL  
208–356  
SHOWN)  
8
TORQUE TO  
60 ft–lb  
UHMWPE  
PTFE  
UHMWPE  
(82 N.m)  
20  
PTFE  
UHMWPE  
64*  
MALE  
GLAND  
27*  
29  
26  
27*  
4
7
**32  
27*  
39  
52  
TORQUE TO  
40–50 ft–lb  
(54–68 N.m)  
44  
TORQUE TO  
40–50 ft–lb  
(54–68 N.m)  
MALE  
GLAND  
11  
UHMWPE  
**42  
PTFE  
UHMWPE  
33  
PTFE  
UHMWPE  
49  
50  
*65  
LIPS OF  
**41  
FEMALE  
GLAND  
V–PACKINGS  
MUST FACE UP  
**47  
LUBRICATE  
SHIM  
(AS REQ’D)  
18  
3
**30  
53  
LUBRICATE TOP  
THREAD  
*17  
28  
*15  
19  
45  
66  
LIPS MUST  
FACE DOWN  
34  
31  
36  
*56  
LIPS OF  
P
ACKING MUST  
37  
6
**21  
FACE UP  
*35  
38  
12 306–646  
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PARTS LIST – STANDARD PUMPS  
Model 222–248, Series A  
Model 215–873, Series B  
20:1 Ratio King Pump with Standard Air Motor  
10:1 Ratio Bulldog Pump with Quiet Air Motor  
Includes items 1–66  
Includes items 1–66  
Model 204–287, Series K  
10:1 Ratio Bulldog Pump with Standard Air Motor  
Includes items 1–66  
REF  
REF  
NO. PART NO.  
DESCRIPTION  
QTY  
NO. PART NO.  
DESCRIPTION  
QTY  
1
207–647  
215–255  
208–356  
KING, STANDARD AIR MOTOR,  
Model 222–248 only  
53  
168–253  
164–443  
ROD, connecting; 9–5/16” (236.5 mm)  
Model 222–248 only  
ROD, connecting; 9–3/8” (238.1 mm)  
Models 215–873 & 204–287 only  
PACKING, u–cup; UHMWPE  
1
see 306–968 for parts  
1
1
1
1
1
BULLDOG, QUIET AIR MOTOR  
Model 215–873 only  
see 307–304 for parts  
BULLDOG, STANDARD AIR MOTOR  
Model 204–287 only  
56  
58  
64  
65  
108–543*  
172–477***  
223–369*  
223–368*  
T
AG, warning (not shown)  
GLAND/PACKING STACK, throat  
GLAND/PACKING STACK,  
intake valve  
See 307–049 for parts  
DISPLACEMENT PUMP ASSEMBLY  
Includes items 3–39, 56–66  
.HOUSING, intake valve seal  
Includes item 30  
1
1
1
66  
2
3
204–641  
Series K  
205–161  
110–769  
SEAL, wiper; polyurethane  
1
1
1
1
*Included in repair kit 220–861.  
4
6
7
206–256  
100–155  
101–354  
.VALVE, bleeder  
**Recommended “tool box” spare parts. Keep on hand to  
reduce down time.  
.NUT, hex, jam; 5/8–18  
.PIN, roll; 0.188” (4.8 mm) dia;  
1.125” (28.6 mm) long  
.BOLT, hex hd cap; 5/8–11 x 12”  
.NUT, packing, intake valve  
.O–RING, Vitonr  
1
4
1
1
1
1
1
1
1
1
3
1
1
1
1
1
***Extra warning labels and tags are available free.  
8
102–420  
158–440  
108–833*  
108–832*  
162–887  
162–888  
162–891  
186–058**  
181–896  
162–898*  
162–900  
162–901  
162–902**  
162–903  
162–906**  
164–442  
11  
15  
17  
18  
19  
20  
21  
26  
27  
28  
29  
30  
31  
32  
33  
1
306 and 307 numbers in descriptions refer to separate in  
struction manuals, supplied.  
-
.O–RING, Viton  
.ROD, displacement  
.CAP, lower  
Displacement Pump Repair Kit 220–861  
Must be purchased separately  
Includes:  
.ROD, connecting  
.PACKING NUT/WET–CUP  
.HOUSING, outlet  
.GASKET, copper  
.HOUSING, intake valve  
.STOP, intake valve  
.SEAT, intake valve (part of item 3)  
.GUIDE, valve plate  
Ref No.  
27  
Qty  
3
35  
2
56  
1
64  
65  
1
1
.ROD, priming  
.CAP, upper  
NOTE: O–ring 104–445 included in the kit is not used  
with these models.  
34  
35  
36  
37  
38  
39  
41  
165–888  
181–897*  
165–890  
172–199  
181–893  
180–936  
100–103**  
.PLATE, valve  
1
2
1
1
1
1
.BEARING, piston  
.PLATE, valve  
HOW TO ORDER PARTS  
.PISTON, priming  
1
To be sure you receive the correct replacement parts, kits or  
accessories, always give all of the information requested in the  
.PISTON, cylinder  
.CYLINDER, pump  
chart below  
.
PIN, cotter; 0.125” (3.2 mm) dia. x  
1.5” (38 mm) long  
2. Check the parts list to identify the correct part number; do not use  
the ref. no. when ordering.  
3. Order all parts from your nearest Graco distributor  
1
42  
100–104**  
PIN, cotter; 0.125” (3.2 mm) dia. x  
1.75” (45 mm) long  
NUT, lock; 5/8–11; w/nylon insert  
NUT, hex, jam; 3/4”  
O–RING, nitrile rubber  
COUPLING, connecting rod  
Model 222–248 only  
COUPLING, connecting rod  
Models 215–873 & 204–287 only  
NUT, shouldered  
Model 222–248 only  
NUT, shouldered  
.
1
3
1
1
6 digit  
Part Number  
44  
45  
47  
49  
101–712  
101–936  
158–674**  
168–211  
Qty  
Part Description  
1
1
1
1
3
161–543  
168–210  
161–544  
168–824  
50  
52  
Models 215–873 & 204–287 only  
ROD, tie; 13–7/8” (352.4 mm) long,  
shoulder to shoulder  
13  
306–646  
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PARTS DRAWING – SEVERE–DUTY PUMPS  
Model 222–539, Series A  
Model 222–526, Series A  
20:1 Ratio King Pump with Standard Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
10:1 Ratio Bulldog Pump with Standard Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
Model 223–991, Series A  
Model 223–984, Series A  
20:1 Ratio King Pump with Quiet Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
10:1 Ratio Bulldog Pump with Quiet Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
38  
1
(MODEL  
208–356  
56*  
21**  
LIPS OF  
8
LIPS OF  
V–PACKINGS MUST  
FACE DOWN  
PACKING  
MUST FACE  
UP  
SHOWN)  
TORQUE TO  
60 ft–lb  
(82 N.m)  
UHMWPE  
35*  
27*  
PTFE  
UHMWPE  
PTFE  
UHMWPE  
64*  
29  
MALE  
GLAND  
27*  
62**  
7
26  
MALE  
52  
GLAND  
4
TORQUE  
TO  
11  
UHMWPE  
PTFE  
40–50 ft–lb  
(54–68 N.m)  
27*  
59  
UHMWPE  
*65  
PTFE  
LIPS OF  
UHMWPE  
V–PACKINGS  
44  
TORQUE TO  
40–50 ft–lb  
(54–68 N.m)  
MUST FACE UP  
FEMALE  
GLAND  
49  
50  
3
SHIM  
(AS REQ’D)  
**41  
**30  
**47  
LUBRICATE  
**42  
60  
28  
53  
LUBRICATE TOP  
THREAD  
31  
36  
34  
61  
45  
37  
6
66  
LIPS MUST  
FACE DOWN  
14 306–646  
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PARTS LIST – SEVERE–DUTY PUMPS  
Model 222–539, Series A  
Model 222–526, Series A  
20:1 Ratio King Pump with Standard Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
10:1 Ratio Bulldog Pump with Standard Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
Model 223–991, Series A  
Model 223–984, Series A  
20:1 Ratio King Pump with Quiet Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
10:1 Ratio Bulldog Pump with Quiet Air Motor  
and Severe–Duty Displacement Pump  
Includes items 1–66  
REF  
REF  
NO. PART NO.  
DESCRIPTION  
QTY  
NO. PART NO.  
DESCRIPTION  
QTY  
1
207–647  
220–106  
208–356  
215–255  
KING, STANDARD AIR MOTOR,  
Model 222–539 only  
59  
60  
61  
62  
64  
65  
186–063  
186–095  
167–490  
167–476  
223–369*  
223–368*  
CYLINDER, pump  
ROD, displacement  
ADAPTER  
1
1
1
1
1
see 306–968 for parts  
1
1
KING, QUIET AIR MOTOR,  
Model 223–991 only  
see 307–741 for parts  
BULLDOG, STANDARD AIR MOTOR  
Model 222–526 only  
See 307–049 for parts  
BULLDOG, QUIET AIR MOTOR  
Model 223–984 only  
See 307–304 for parts  
DISPLACEMENT PUMP ASSEMBLY  
Includes items 3–38, 56–66  
.HOUSING, intake valve seal  
Includes item 30  
.VALVE, bleeder  
.NUT, hex, jam; 5/8–18  
.PIN, roll; 0.188” (4.8 mm) dia;  
1.125” (28.6 mm) long  
.BOLT, hex hd cap; 5/8–11 x 12”  
.NUT, packing, intake valve  
.PACKING NUT/WET–CUP  
.HOUSING, outlet  
.GASKET; copper  
.HOUSING, intake valve  
.STOP, intake valve  
ROD, priming  
GLAND/PACKING STACK, throat  
GLAND/PACKING STACK,  
intake valve  
1
66  
1
110–769  
SEAL, wiper; polyurethane  
1
1
1
*Included in repair kit 220–861.  
2
3
222–638  
Series B  
205–161  
**Recommended “tool box” spare parts. Keep on hand to  
reduce down time.  
1
1
1
4
6
7
206–256  
100–155  
101–354  
***Extra warning labels and tags are available free.  
306 and 307 numbers in descriptions refer to separate in  
struction manuals, supplied.  
-
1
4
1
1
1
3
1
1
1
1
1
2
1
1
1
8
102–420  
158–440  
186–058**  
181–896  
162–898*  
162–900  
162–901  
162–902**  
162–903  
165–888  
181–897*  
165–890  
172–199  
181–893  
100–103**  
11  
21  
26  
27  
28  
29  
30  
31  
34  
35  
36  
37  
38  
41  
Displacement Pump Repair Kit 220–861  
Must be purchased separately  
Includes:  
Ref No.  
27  
Qty  
3
35  
2
.SEAT, intake valve (part of item 3)  
.GUIDE, valve plate  
56  
1
.PLATE, valve  
64  
65  
1
.BEARING, piston  
1
.PLATE, valve  
.PISTON, priming  
NOTE: O–rings 108–832, 108–833, and 104–445 in-  
cluded in the kit are not used with these models.  
.PISTON, cylinder  
PIN, cotter; 0.125” (3.2 mm) dia. x  
1.5” (38 mm) long  
1
42  
100–104**  
PIN, cotter; 0.125” (3.2 mm) dia. x  
1.75” (45 mm) long  
NUT, lock; 5/8–11; w/nylon insert  
NUT, hex, jam; 3/4”  
O–RING; nitrile rubber  
COUPLING, connecting rod  
Models 222–539 and 223–991 only  
COUPLING, connecting rod  
Models 222–526 and 223–984 only  
NUT, shouldered  
Models 222–539 and 223–991 only  
NUT, shouldered  
Models 222–526 and 223–984 only  
ROD, tie; 13–7/8” (352.4 mm) long,  
shoulder to shoulder  
HOW TO ORDER PARTS  
1
3
1
1
1
To be sure you receive the correct replacement parts, kits or  
accessories, always give all of the information requested in the  
44  
45  
47  
49  
101–712  
101–936  
158–674**  
168–211  
chart below  
.
2. Check the parts list to identify the correct part number; do not use  
the ref. no. when ordering.  
3. Order all parts from your nearest Graco distributor  
.
1
1
1
1
3
1
161–543  
168–210  
161–544  
168–824  
168–253  
164–443  
6 digit  
Part Number  
Qty  
Part Description  
50  
52  
53  
ROD, connecting; 9–5/16” (236.5 mm)  
Models 222–539 and 223–991 only  
ROD, connecting; 9–3/8” (238.1 mm)  
Models 222–526 and 223–984 only  
PACKING, u–cup; UHMWPE  
1
1
1
56  
58  
108–543*  
172–477***  
TAG, warning (not shown)  
15  
306–646  
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ACCESSORIES  
USE GENUINE GRACO PARTS AND ACCESSORIES  
Must be purchased separately  
.
GROUNDING CLAMP 103–538  
GROUND WIRE 208–950  
7.6 m (25 ft) long,  
1.5 mm@ (12 gauge)  
BLEED–TYPE MASTER AIR VALVE  
300 psi (21 bar) MAXIMUM WORKING PRESSURE  
Relieves air trapped in the air line between the pump air  
inlet and this valve when closed.  
107–141  
107–142  
3/4 npt(mxf) inlet and outlet  
1/2 npt(mxf) inlet and outlet  
AIR LINE FILTER  
250 psi (17.5 bar) MAXIMUM WORKING PRESSURE  
AIR PRESSURE REGULATOR KIT 205–712  
106–149  
106–150  
1/2 npt inlet and outlet  
3/4 npt inlet and outlet  
200 psi (14 bar) MAXIMUM WORKING PRESSURE  
Includes bleed–type master air valve  
3/4 npt  
AIR LINE LUBRICATOR  
250 psi (17.5 bar) MAXIMUM WORKING PRESSURE  
214–848  
214–849  
1/2 npt inlet and outlet  
3/4 npt inlet and outlet  
3/4 npsm(f) SWIVEL  
AIR INLET UNION  
AIR PRESSURE REGULA  
T
OR 207–755  
10–125  
psi (1–9 bar) MAXIMUM WORKING PRESSURE  
3/4 npt inlet and outlet  
PUMP RUNAWAY VALVE 215–362  
AIR PRESSURE GAUGE 101–180  
0–200 psi (0–14 bar) RANGE  
180 psi (12 bar) MAXIMUM WORKING PRESSURE  
Shuts off air supply to the pump if the pump accelerates  
beyond the pre–adjusted setting due to an empty supply  
container, interrupted fluid supply to the pump, or exces  
sive cavitation. 3/4 npt(f) inlet and outlet.  
-
3/4 NPT INLET  
AND OUTLET  
ACCESSORIES CONTINUED ON THE NEXT PAGE  
16 306–646  
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ACCESSORIES  
USE GENUINE GRACO PARTS AND ACCE
Must be purchased separately  
.
GRACO THROAT SEAL LIQUID  
FLOOR STAND K
Non–evaporating liquid for wet cup  
Provides secure flop when used with  
bulk fluid containencludes instruc-  
tions. (Part nos. 185–445 Plate, in-  
cluded in the kit, ase pumps.)  
206–995  
206–996  
1 quart (0.95 liter)  
1 gallon (3.8 liter)  
FLUID DRAIN VALVE 210–658  
350 bar (5000 psi) MAXIMUM WORKING PRESSURE  
3/8 npt(f) mbe; Viton seals  
PUMP  
INTAKE  
200 LITER (55 gal.) ELEVATOR/INDUCTOR 222–635  
For highly viscous fluids that require the weight of a pump  
on an inductor plate to assist in pump priming.  
ACCESSORIES CONTINUED ON THE NEXT PAGE  
17  
306–646  
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ACCESSORIES  
USE GENUINE GRACO PARTS AND ACCESSORIES  
Must be purchased separately  
.
HYDRA–MASTIC AUTOMATIC AIRLESS SPRA  
Y
GROUNDED BUNA–N FLUID HOSE  
3500 psi (240 bar) MAXIMUM WORKING PRESSURE  
GUN 206–660  
3000 psi (210 bar) MAXIMUM WORKING PRESSURE  
Has a 0.180 in. (4.57 mm) fluid valve orifice and internal  
3–pin safety diffuser for spraying highly viscous, semi–  
Part No.  
214–962  
214–963  
214–964  
ID  
Length  
15 ft (4.6 m)  
25 ft (7.6 m)  
50 ft (15.2 m)  
Thd. Size  
1/2 npt(m)  
1/2 npt(m)  
1/2 npt(m)  
1/2” (12.7 mm)  
1/2” (12.7 mm)  
1/2” (12.7 mm)  
solid fluids. Requires installing a 3 way air solenoid con  
-
trol valve with a timer to operate the gun.  
GROUNDED NYLON FLUID HOSE  
3000 psi (210 bar) MAXIMUM WORKING PRESSURE  
Part No.  
ID  
Length  
Thd. Size  
214–700  
3/16” (4.8 mm)  
2 ft (610 mm)  
(fbe) swivel  
1/4 npsm  
PISTOL GRIP FLO–GUN 207–945  
6000 psi (420 bar) MAXIMUM WORKING PRESSURE  
214–701  
3/16” (4.8 mm)  
x 1/4  
3 ft (914 mm)  
1/4 npt(m)  
npsm(f)  
swivel  
210–540  
210–541  
214–703  
214–705  
214–920  
1/4” (6.4 mm)  
1/4” (6.4 mm)  
3/8” (9.5 mm)  
3/8” (9.5 mm)  
3/8” (9.5 mm)  
25 ft (7.6 m)  
1/4 npsm  
(fbe) swivel  
50 ft (15.2 m)  
(fbe) swivel  
1/4 npsm  
25 ft (7.6 m)  
3/8 npt  
(mbe)  
EXTRUSION FLO–GUN 204–355  
3000 psi (210 bar) MAXIMUM WORKING PRESSURE  
50 ft (15.2 m)  
100 ft (30.4 m)  
3/8 npt  
(mbe)  
3/8 npt  
(mbe)  
GROUNDED BUNA–N FLUID HOSE  
5000 psi (345 bar) MAXIMUM WORKING PRESSURE  
JOINT SEALER POLE GUN 203–810  
(Less Nozzle)  
3000 psi (210 bar) MAXIMUM WORKING PRESSURE  
For sealing joints in c
3/4 npt  
Part No.  
ID  
Length  
5 ft (1.5 m)  
Thd. Size  
215–445  
1/2” (12.7 mm)  
1/2 npt  
( mbe)  
215–441  
215–443  
215–444  
1/2” (12.7 mm)  
1/2” (12.7 mm)  
1/2” (12.7 mm)  
10 ft (3.1 m)  
25 ft (7.6 m)  
50 ft (15.2 m)  
1/2 npt  
(mbe)  
1/2 npt  
(mbe)  
1/2 npt  
(mbe)  
GROUNDED NEOPRENE FLUID HOSE  
5000 psi (345 bar) MAXIMUM WORKING PRESSURE  
Part No.  
ID  
Length  
6 ft (1.8 m)  
Thd. Size  
GROUNDED BUNA–N AIR SUPPLY HOSE  
175 psi (12 bar) MAXIMUM WORKING PRESSURE  
215–241  
3/4” (19.1 mm)  
3/4 npt  
(mbe)  
Part No.  
208–610  
205–548  
208–611  
208–612  
ID  
Length  
6 ft (1.8 m)  
Thd. Size  
3/4 npt(m)  
3/4 npt(m)  
3/4 npt(m)  
3/4 npt(m)  
215–238  
215–239  
215–240  
3/4” (19.1 mm)  
3/4” (19.1 mm)  
3/4” (19.1 mm)  
10 ft (3.1 m)  
15 ft (7.6 m)  
25 ft (7.6 m)  
3/4 npt  
(mbe)  
3/4” (19 mm)  
3/4” (19 mm)  
3/4” (19 mm)  
3/4” (19 mm)  
3/4 npt  
(mbe)  
15 ft (4.5 m)  
25 ft (7.6 m)  
50 ft (15 m)  
3/4 npt  
(mbe)  
18 306–646  
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DIMENSIONS  
MOUNTING HOLE LAYOUT  
11.25” (286 mm) DIA.  
AIR MOTOR BASE  
FLANGE  
USE GASKET 161–806  
(ORDER SEPARATELY)  
3/4 NPSM(F)  
AIR INLET  
4.0”  
(102 mm)  
1.375”  
(35 mm)  
FOUR 0.44” (11.1 mm)  
HOLES ON 10.5” (267 mm)  
BOLT CIRCLE  
21.25”  
(540 mm)  
9.75” (248 mm) DIA.  
OPTIONAL  
FLUID  
45_  
OUTLET  
90_  
6.5” (165 mm) DIA.  
DISPLACEMENT  
PUMP FLANGE  
USE GASKET 162–788  
13.875”  
(352 mm)  
54.75”  
(1391 mm)  
FOUR 0.41” (10.3 mm)  
HOLES ON 5.5” (140 mm)  
BOLT CIRCLE  
4.375” (111 mm) DIA.  
45_  
90_  
19.625”  
1–1/2” NPT(F)  
FLUID OUTLET  
(499 mm)  
ON DOWN  
STROKE  
SERVICE INFORMATION  
SERIES CHANGE NOTE: Model 222–638 Displace-  
ment Pump is advanced to Series B.  
4.25” (108 mm) DIA.  
ADDED MODELS NOTE: Model 223–984 Quiet Bulldog  
and 223–991 Quiet King are added to the manual.  
19  
306–646  
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TECHNICAL DATA  
Air Operating Range  
Maximum Recommended  
Bulldog Models 204–287, 215–873,  
Pump Speed  
.
. . . . . . . . . . . . . . . . . . . . . . . . . . 60 cycles/min;  
8.5 gpm (32 liter/min) delivery  
222–526, and 223–984  
.
. . . . . . . . . 40–100 psi (3–7 bar)  
King Models 222–248, 222–539,  
Maximum Pump Discharge Pressure  
Bulldog Models 204–287, 215–873,  
and 223–991  
.
. . . . . . . . . . . . . . . . . . . 40–90 psi (3–6 bar)  
Air consumption  
222–526, and 223–984  
King Models 222–248, 222–539,  
and 223–991 . . . . . . . . . . . . . . . . . . . . 1800 psi (124 bar)  
Wetted Parts .  
.
. . . . . . . . . . . . 1000 psi (70 bar)  
Bulldog Models 204–287, 215–873,  
222–526, and 223–984 . . . . 13 cfm per gallon pumped  
/min/liter) at 100 psi (7 bar) air pressure;  
.
.
(0.10  
m
#
.
Carbon Steel, Zinc Plating, Nitralloy, Bronze,  
Ultra–High Molecular Weight Polyethylene,  
up to 120 cfm (3.4 m  
#
/min/liter) with pump  
operated within recommended range  
r, Delrin  
r
, Vitonr, Thiokol  
r
PTFE  
King Models 222–248, 222–539,  
and 223–991 . . . . . . . . . . . . . .  
(0.31  
Weight . . . . . . . . . . . . . . . . . . . . . . . 101 lb (46 kg) approximate  
.
1
1 cfm per gallon pumped  
m
#
/min/liter) at 70 psi (5 bar) air pressure;  
Delrinr,  
r, and Vitonr  
are registered trademarks of the  
PTFE  
DuPont Co.  
up to 80 cfm (2.26 m  
#
/min/liter) with pump  
operated within recommended range  
Pump Cycles Per Gallon (liter)  
.
. . . . . . . . . . . . . . . . . . 7 (26.5)  
Thiokolr is a registered trademark of the Thiokol Chemical Corp.  
THE GRACO WARRANTY AND DISCLAIMERS  
WARRANTY  
Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and work  
manship on the date of sale by an authorized Graco distributor to the original purchaser for use. As purchaser s sole  
-
remedy for breach of this warranty, Graco will, for a period of twelve months from the date of sale, repair or replace  
any part of the equipment proven defective. This warranty applies only when the equipment is installed, operated and  
maintained in accordance with Graco’s written recommendations.  
This warranty does not cover, and Graco shall not be liable for, any malfunction, damage or wear caused by faulty  
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tam-  
pering, or substitution of non–Graco component parts. Nor shall Graco be liable for malfunction, damage or wear  
caused by the incompatibility with Graco equipment of structures, accessories, equipment or materials not supplied  
by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories,  
equipment or materials not supplied by Graco.  
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco  
distributor for verification of the claim. If the claimed defect is verified, Graco 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 material or workmanship, repairs will be made at a reasonable charge,  
which charges may include the costs of parts, labor and transportation.  
DISCLAIMERS AND LIMITATIONS  
THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY OTHER WAR-  
RANTIES (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. IN NO CASE SHALL GRACO’S LIABILITY EXCEED THE AMOUNT OF THE PURCHASE PRICE. ANY ACTION FOR BREACH OF  
WARRANTY MUST BE BROUGHT WITHIN TWO (2) YEARS OF THE DATE OF SALE.  
EQUIPMENT NOT COVERED BY GRACO WARRANTY  
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR  
PURPOSE, WITH RESPECT TO ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACTURED BY  
GRACO. These items sold, but not manufactured by Graco (such as electric motor, switches, hose, etc.) are subject to  
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any  
claim for breach of these warranties.  
IMPORTANT PHONE NUMBERS  
TO PLACE AN ORDER, contact your Graco distributor  
or call this number to identify the distributor closest to  
you: 1–800–328–0211 Toll Free  
,
FOR TECHNICAL ASSISTANCE, service repair infor-  
mation or assistance regarding the application of Graco  
equipment: 1–800–543–0339 Toll Free  
Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)  
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan  
GRACO INC. .O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
P
PRINTED IN U.S.A. 306–646 12–58 Revised 10–90  
20 306–646  
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