Instructions–Parts List
Displacement Pump
307983L
For supply and circulation of finishing materials.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
400 psi (28 bar) Maximum Working Pressure*
* The maximum safe working pressure is determined by the
motor to which this displacement pump is connected.
Part No. 223177, Series D
Carbon Steel, UHMWPE and Leather Packed Pump
Table of Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Graco Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 12
Graco Information . . . . . . . . . . . . . . . . . . . . . . . 12
06080
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury.
D Ground the equipment and the object being sprayed. Refer to Grounding in your separate pump
manual.
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing immediately. Do not use the equipment until you identify and correct the problem.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
D Keep the spray area free of debris, including solvent, rags, and gasoline.
D Electrically disconnect all equipment in the spray area.
D Extinguish all open flames or pilot lights in the spray area.
D Do not smoke in the spray area.
D Do not turn on or off any light switch in the spray area while operating or if fumes are present.
D Do not operate a gasoline engine in the spray area.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
D Know the specific hazards of the fluid you are using.
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
D Keep clear of all moving parts when starting or operating the pump.
D Before servicing the equipment, follow the Pressure Relief Procedure on page 4 to prevent the
equipment from starting unexpectedly.
307983
3
Service
1. If you are pumping heavy viscosity fluid and
Pressure Relief Procedure
erratic pump operation develops, disassemble
the pump as explained on page 5. To increase
the ball travel in the intake valve, move the pin (18)
to the center or upper set of holes. To increase the
ball travel in the piston valve, place the piston in a
vise, loosen the upper cap (27) to relieve tension
on the plunger rod (23), and turn the plunger rod
counterclockwise two complete turns beyond its
factory-set position, or enough to set the total ball
travel to 0.306 in. (7.8 mm).
WARNING
PRESSURIZED EQUIPMENT HAZARD
The system pressure must be manually relieved to
prevent the system from starting or spraying acci-
dentally. To reduce the risk of an injury from acci-
dental spray from the gun, splashing fluid, or
moving parts, follow the Pressure Relief Proce-
dure whenever you:
2. If you are pumping lighter viscosity fluid and
surging develops, disassemble the pump as
explained on page 5. To decrease the ball travel
in the intake valve, place the pin (18) in the lowest
set of holes. To decrease the ball travel in the
piston valve, place the piston in a vise, loosen the
upper cap (27) to relieve tension on the plunger
rod (23), and turn the plunger rod clockwise two
complete turns beyond its factory-set position, or
enough to set the total ball travel to 0.102 in. (2.6
mm).
D are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray nozzle.
1. Shut off the air or hydraulic power supply to the
pump.
2. Close the bleed-type master air valve (required in
air-powered systems).
27
3. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
23
4. Open the drain valve (required in your system),
having a container ready to catch the drainage.
5. Leave the drain valve open until you are ready to
spray again.
Ball Travel
If you suspect that the spray nozzle or hose is com-
pletely clogged, or that pressure has not been fully
relieved after following the steps above, very slowly
loosen the nozzle retaining ring or hose end coupling
and relieve pressure gradually, then loosen completely.
Now clear the nozzle or hose.
22
Piston Valve
18
16
Piston and Intake Valve Adjustment
Ball Travel
See Fig. 1. The fluid piston and intake check valves
are factory-set for pumping medium viscosity fluids.
The ball stop pin (18) in the intake valve is in the
lowest set of holes. The piston ball travel is set at
0.204 in. (5.2 mm), measured from the end of the
adjustable plunger rod (23) to the top of the ball (22).
This distance represents four complete turns of the rod
(23) from the top of the ball.
15
Intake Valve
06081
Fig. 1
4
307983
Service
5. Clean all parts of the intake valve and inspect
Before you start:
carefully for wear or damage. Inspect the seat (C)
of the retainer and seat assembly (16), but do not
attempt to remove it. If the seat is worn or dam-
aged, replace the entire retainer and seat assem-
bly.
1. Have all necessary repair parts on hand. Recom-
mended spare parts are marked in the parts list
with a check mark, for example (3n).
2. Packing Repair Kits are available for some pumps.
See the parts list for your pump to order the cor-
rect kit. Use all the new parts in the kit for the best
results. Kit parts are indicated in the parts list with
an asterisk, for example (5*).
6. Pull the pump cylinder (9) straight off the outlet
housing (24), being careful not to tilt it until it is
clear of the displacement rod (8) and piston as-
sembly (B).
3. Always replace the glands when replacing the
packings, whether or not you use a repair kit.
7. Inspect the polished inner surface of the cylinder
(9) for scoring, wear or damage by running a finger
over the surface or holding the part up to a light at
an angle. Replace if necessary.
4. Use a compatible solvent to clean parts. Inspect
for wear or damage and replace parts as needed.
8. Remove the three screws (19) and washers (20),
and disassemble the piston. Be very careful when
handling the ball (22) and seat (13) as they can be
very easily damaged. Clean all parts and inspect
carefully for wear or damage. See Fig. 4.
5. Use light, waterproof grease wherever lubrication
is recommended.
Disassembly (See Fig. 2)
9. Unscrew the packing nut/wet-cup (1) from the
outlet housing (24). Pull the displacement rod (8)
down out of the outlet housing. Remove and
inspect the outlet housing gasket (7).
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 4.
10. Push the throat packings and glands (A) out of the
outlet housing (24). Clean the outlet housing and
throat packings, and inspect for wear or damage.
1. Flush the pump, if possible. Relieve the pressure.
2. Disconnect the air and fluid lines. Remove the
pump from its mounting and clamp it in a vise.
Disconnect the displacement pump from the motor
as explained in your separate pump manual.
11. Inspect the polished outer surface of the displace-
ment rod (8) for scoring, wear or damage by
running a finger over the surface or holding the
part up to a light at an angle. Replace if necessary.
3. Loosen the packing nut/wet-cup (1). Unscrew and
remove the four tie bolts (30) and lockwashers
(31). Pull the intake valve housing (14) off the
pump.
12. Do not disassemble the displacement rod
assembly unless necessary. Before disassem-
bling, carefully measure how far the adjustable
plunger rod (23) protrudes from the lower cap (10).
This determines the amount of piston ball (22)
travel. Screw the plunger rod (23) out of the dis-
placement rod assembly, and inspect the o-rings
(3) in place. Disassemble the upper and lower
caps (27, 10) from the displacement rod (8).
Inspect the o-rings (4) in place.
4. Remove and inspect the intake valve gasket (17).
Unscrew the retainer and seat assembly (16) from
the intake valve housing (14). Remove the ball
stop pin (18), noting which holes it is in. Remove
the intake valve ball (15). Handle the ball carefully
as it can be easily damaged.
307983
5
Service
1
4
1
2
3
See Fig. 3.
See Fig. 4.
Apply thread sealant.
27
3
Lubricate threads and torque to
20–24 ft–lb (27–33 N.m).
4
4
23
A
1
24
7*
8
3
4
30
4
10
22
9
16
18
3
B
2
14
17*
15
C
06082
Fig. 2
6
307983
Service
3. Install the male gland, v-packings, and female
Reassembly (See Fig. 2)
gland in the outlet housing (24), as shown for your
pump model (see Fig. 3). Install the v-packings
one at a time, with the lips facing down.
1. Lubricate the packing nut threads and all packings
and seals with silicone-free lubricant, such as no. 2
lithium-base grease, before reassembling.
4. Install the gasket (7*) in the outlet housing (24).
Loosely install the packing nut/wet-cup (1). Insert
the displacement rod assembly in the bottom of
the outlet housing and push it up until the threads
of the upper cap (27) are roughly level with the top
of the packing nut/wet-cup. (This makes it easier
to connect the coupling nut when the displacement
pump is reinstalled on the motor.)
2. If it was necessary to disassemble the displace-
ment rod assembly, reassemble the upper and
lower caps (27, 10) and the plunger rod (23) to the
displacement rod (8). Screw the plunger rod
through the lower cap until it protrudes the re-
quired distance as was recorded in step 12 of
Disassembly.
1
2
3
Apply sealant to male threads and torque to 80–90 ft–lb (108–122 N.m).
Lips of v-packings must face down.
Lubricate threads and torque to 20–24 ft–lb (27–33 N.m).
Lubricate.
4
1
3
*26
4
2
5*
*25
4
2
6*
24
29
1
06083
Fig. 3
307983
7
Service
5. Place a washer (20) on each of the three screws
9. Place the intake valve ball (15) on the seat of the
retainer and seat assembly (16). Install the ball
stop pin (18) in the same set of holes from which it
was removed. (To readjust ball travel, see Piston
and Intake Valve Adjustment on page 4.)
(19). Assemble the piston as shown for your pump
model (see Fig. 4). Place the piston valve seat
(13) in the center of the piston assembly so its lip
bottoms out. Continue stacking the parts on the
screws (19) as shown. Place the piston ball (22)
on the seat (13).
10. Lubricate the tie bolts (30) and install a lockwasher
(31) on each. Install the tie bolts through the intake
valve housing (14) and up into the outlet housing
(24). Torque oppositely and evenly to 20–24 ft-lb
(27–33 N.m).
6. Place a piston spacer (42) on each of the screws
(19). Apply thread sealant to the screws and screw
the piston assembly into the lower cap (10).
Torque the screws (19) to 240–300 in-lb (27–34
N.m). See Fig. 4.
11. Torque the packing nut/wet-cup (1) 20–24 ft-lb
(27–33 N.m); do not overtighten or you may dam-
age the packings. Reconnect the displacement
pump to the motor as explained in your separate
pump manual. Reconnect the ground wire if it was
disconnected during service.
7. Carefully guide the cylinder (9) over the piston
assembly and displacement rod until it seats in the
outlet housing (24). See Fig. 2.
8. Apply thread sealant and screw the retainer and
seat assembly (16) into the intake valve housing
(14). Install the gasket (17*) on the intake valve
housing.
12. Fill the packing nut/wet-cup (1) 1/2 full of Graco
Throat Seal Liquid or a compatible solvent. Recon-
nect all hoses and return the pump to operation.
1
Apply thread sealant and torque to 240–300 in–lb (27–34 N.m).
42
22n
21n
39*
11*
12n
13
11*
39*
21n
20
19
1
06076
Fig. 4
8
307983
Parts
Model 223177, Series D
UHMWPE and Leather Packed
Ref
No.
Part
No.
Ref
No.
Part
No.
Description
Qty
Description
Qty
1
180949
106555
108832
166489
185662
171168
185650
24C503
161743
185630
160019
180944
180930
101178
PACKING NUT/WET-CUP
O-RING; fluoroelastomer
O-RING; fluoroelastomer
V-PACKING; leather
GLAND, male
GASKET; nylon
ROD, displacement
CYLINDER, pump
1
2
2
2
1
1
1
1
1
2
1
1
1
22n
100279
BALL, piston; steel;
7/8” (22 mm) diameter
ROD, plunger, adjustable
HOUSING, outlet, pump
V-PACKING; UHMWPE
GLAND, female
1
1
1
3
1
1
3n
4n
5*
6*
7*
23
24
25*
26*
27
185651
180932
185647
185648
190067
190176
CAP, rod, upper
8
9
29
UNION, adapter, straight;
1” npt(m) x 1” npsm(f) swivel
BOLT, hex hd; 3/8–16 unc–2a x
9” (229 mm) long
LOCKWASHER; 3/8” (10 mm) size
GASKET, piston; cellulose fiber
TAG, warning (not shown)
SPACER, piston
1
10
11*
12n
13
14
15n
CAP, rod, lower
30
110349
PACKING, cup; UHMWPE
WASHER, back-up
SEAT, piston valve
HOUSING, intake valve
BALL, intake; steel;
1–1/4” (31.8 mm) diameter
RETAINER and SEAT, intake valve
GASKET; nylon
4
4
2
1
3
1
31
100133
185917
172479
160016
179761
39*
40Y
42
1
1
1
1
44Y
TAG, warning (not shown)
16
17*
18
19
205061
171177
160006
101529
*
These parts are included in Repair Kit 223320, which may
be purchased separately.
PIN, straight
SCREW, hex hd;
3/8–16 x 2–3/4” (70 mm) long;
w/nylon locking patch
WASHER, flat
n Keep these spare parts on hand to reduce down time.
3
3
2
20
21n
171163
185964
Y Replacement Danger and Warning labels, tags and cards
WASHER, piston
are available at no cost.
42
22n
21n
1
*26
39*
27
11*
4n
5*
*25
12n
8
29
13
6*
11*
39*
3n
24
*7
23
21n
20
19
15n
n3
n4
18
14
16
9
10
*17
31
30
06076
307983
9
Conversion Kit
223321 CONVERSION KIT
(Must be purchased separately)
Converts the pump to PTFE throat packings.
Part No.
Description
Qty
185648
185662
166165
185630
171168
171177
185917
Female Gland
Male Gland
V-Packing; PTFE
Cup Packing; UHMWPE
Gasket; nylon
1
1
5
2
1
1
2
Gasket; nylon
Gasket; cellulose fiber
10
307983
Technical Data
Category
Data
Maximum Working Pressure
Wetted Parts:
400 psi (28 bar)
Ductile Iron; Carbon Steel; 17–4 PH and 304 Stainless Steel; Cadmium, Zinc,
and Nickel Plating; Nitralloy; fluoroelastomer; Cellulose Fiber; Leather;
Ultra-High Molecular Weight Polyethylene
307983 11
Graco Standard Warranty
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the
date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco,
Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be
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 general wear and tear, or any malfunction, damage or wear caused by
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub-
stitution of non–Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of
Graco equipment with 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 claimed defect. 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.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection
with accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured
by Graco (such as electric motors, 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.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnais-
sent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires
exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers
to identify the distributor closest to you:
1–800–328–0211 Toll Free
612–623–6921
612–378–3505 Fax
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
This manual contains English. MM 307983
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 1989, Graco Inc. is registered to ISO 9001
Revised 07/2009
12
307983
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