Graco C Series User manual

Instructions
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 2001, Graco Inc. is registered to I.S. EN ISO 9001
SEVERE–DUTY
Displacement Pumps 307944W
Part No. 222012, Series C (#2)
5000 psi (34.5 MPa, 345 bar) Maximum Working Pressure
0.554 in.@(357.4 mm@) Effective Displacement Area
Part No. 222015, Series B (#5)
5000 psi (34.5 MPa, 345 bar) Maximum Working Pressure
0.443 in.@(285.8 mm@) Effective Displacement Area
Part No. 222017, Series C (#7)
5000 psi (34.5 MPa, 345 bar) Maximum Working Pressure
0.370 in.@(238.7 mm@) Effective Displacement Area
Part No. 222019, Series B (#9)
5000 psi (34.5 MPa, 345 bar) Maximum Working Pressure
0.277 in.@(178.7 mm@) Effective Displacement Area
Part No. 239388, Series A (#2), with rod scraper
5000 psi (34.5 MPa, 345 bar) Maximum Working Pressure
0.554 in.@(357.4 mm@) Effective Displacement Area
Part No. 948640, Series A (#0)
3000 psi (21 MPa, 210 bar) Maximum Working Pressure
0.884 in.@(572.2 mm@) Effective Displacement Area
Part No. 948641, Series A (#1)
3000 psi (21 MPa, 210 bar) Maximum Working Pressure
0.740 in.@(477.4 mm@) Effective Displacement Area
Severe-Duty Displacement Pumps have an abrasion and corrosion-
resistant displacement rod and cylinder. Refer to Technical Data
on page 13 for Wetted Parts information.
Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
02403
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.

2 307944
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated system component.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).
DDo not use the hoses to pull the equipment.
DUse only Graco approved hoses. Do not remove hose spring guards, which help protect the hose
from rupture caused by kinks or bends near the couplings.
DUse fluids and solvents that are compatible with the equipment wetted parts. Refer to the Techni-
cal Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DWear hearing protection when operating this equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
DDo not operate the equipment with the air motor plates removed.
DKeep clear of all moving parts when starting or operating the pump.
DBefore checking or servicing the equipment, follow the Pressure Relief Procedure on page 4 to
prevent the equipment from starting unexpectedly.

307944 3
WARNING
INJECTION HAZARD
Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause
extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin
can also cause serious injury.
DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-
cal treatment.
DDo not point the spray gun at anyone or at any part of the body.
DDo not put your hand or fingers over the spray tip.
DDo not stop or deflect leaks with your hand, body, glove or rag.
DDo not “blow back” fluid; this is not an air spray system.
DBe sure the gun trigger safety operates before spraying.
DLock the gun trigger safety when you stop spraying.
DFollow the Pressure Relief Procedure on page 4 whenever you: are instructed to relieve pres-
sure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip.
DTighten all fluid connections before operating the equipment.
DCheck the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and
result in fire or explosion and serious injury.
DGround the equipment and the object being sprayed. See Grounding on page 5.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
DKeep the spray area free of debris, including solvent, rags, and gasoline.
DBefore operating this equipment, electrically disconnect all equipment in the spray area.
DBefore operating this equipment, extinguish all open flames or pilot lights in the spray area.
DDo not smoke in the spray area.
DDo not turn on or off any light switch in the spray area while operating or if fumes are present.
DDo not operate a gasoline engine in the spray area.
DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and
correct the problem.

4 307944
WARNING
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.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
DGraco does not manufacture or supply any of the reactive chemical components that may be used
in this equipment and is not responsible for their effects. Graco assumes no responsibility for loss,
damage, expense or claims for personal injury or property damage, direct or consequential, arising
from the use of such chemical components.
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
Dare instructed to relieve the pressure,
Dstop spraying,
Dcheck or service any of the system equipment,
Dor install or clean the spray tips.
1. Lock the spray gun trigger safety.
2. Shut off the power supply to the pump.
3. Close the bleed-type master air valve (required in
air-powered systems).
4. Unlock the spray gun trigger safety.
5. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
6. Lock the spray gun trigger safety.
7. Open the fluid drain valve (required in your sys-
tem); have a container ready to catch the drain-
age.
8. Leave the fluid drain valve open until you are ready
to spray again.
9. If you suspect that the spray tip or hose is com-
pletely clogged, or that pressure has not been fully
relieved after following the steps above, very
slowly loosen the tip guard retaining nut or hose
end coupling and relieve pressure gradually, then
loosen completely. Now clear the tip or hose.

307944 5
Installation
General Information
NOTE:
DReference numbers and letters in parentheses in
the text refer to the callouts in Figure 1 and the
parts drawing.
DUse Genuine Graco Parts and Accessories, avail-
able from your Graco distributor.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 3.
1. Pump: use a ground wire and clamp as shown in
your separate pump manual.
2. Air or hydraulic hoses: use only electrically con-
ductive hoses.
3. Fluid hoses: use only electrically conductive fluid
hoses.
4. Air compressor or hydraulic supply: follow the
manufacturer’s recommendations.
5. Spray gun: ground by connecting the gun to a
properly grounded fluid hose and pump.
6. Fluid supply container: follow your local code.
7. Object being sprayed: follow your local code.
8. Solvent pails used when flushing: follow 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 paper or
cardboard, which interrupts the grounding continu-
ity.
9. To maintain grounding continuity when flushing or
relieving pressure, hold a metal part of the spray
gun firmly to the side of a grounded metal pail,
then trigger the gun.

06913B
Fig. 1
2
3*
*4
11
12
*10
1
13*
16*
18*
19*
15
15
20
30
24
*22
21
23*
*14
*7
6*
SERVICE NOTES:
All Pump Models except 239388: Torque to 50–60 ft-lb (70–80 NSm).
239388 Pump Model: Torque to 20–25 ft-lb (30–35 NSm).
Apply sealant. Torque to 200 in-lb (23 NSm).
Lips of v-packings must face down.
Torque to 50–60 ft-lb (70–80 NSm).
Lips of v-packings must face up.
Add shims (14*) required to make stack height 0.950–0.975 in.
(24.13–24.77 mm). For model 222017 add shims (14) required to
make stack height 0.960–0.975 in. (24.38–24.77 mm).
Parts for 239388 Pump Model only







8
*5


33*
6 307944
Service
Displacement Pump Repair
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
follow the Pressure Relief Procedure
on page 4 before checking or servicing
any part of the system and whenever you are
instructed to relieve the pressure.
NOTE: Repair Kits are available. See the parts list for
your pump model. All kits (except 948651) include
eight shims (14*) for use on the piston, but use only
the number required. An asterisk behind a reference
number, for example (3*), indicates that this part is
included in the repair kit.
1. Solvent flush the pump if possible.
2. Follow the Pressure Relief Procedure on page
4, stopping the pump at the bottom of its stroke.
3. Disconnect all hoses from the pump.
4. Unscrew the displacement rod (1) from the air
motor connecting rod.
5. Screw the intake valve housing (24) out of the
cylinder (11). See Fig. 1. Disassemble and clean
the valve parts. Inspect the parts for damage or
wear. If the seat in the valve housing is chipped or
worn, replace the housing (24).
6. Loosen the packing nut (2).
7. Push down on the displacement rod (1) until you
can grasp the piston stud (20). Pull the displace-
ment rod out the bottom of the cylinder (11).
Continued on the next page.

307944 7
Service
8. Inspect the outer surface of the displacement rod
(1) and the polished inner surface of the cylinder
sleeve (12) for scoring or wear by running a finger
over the surface or holding the part up to a light at
an angle. Damage to these parts may cause
premature packing wear or leaking. If either part is
worn or scratched, replace it.
NOTE: If replacing the sleeve (12), be sure to install it
with the notched end up, and replace the o-ring (10*)
in the notch. If the old sleeve is hard to remove, con-
tact your Graco representative.
9. Unscrew the piston stud (20) from the displace-
ment rod (1). Remove the ball (13), shims (14),
backup washers (15), glands (16 and 19), and
v-packings (18). Clean all parts and inspect for
damage. If the seat on the piston stud (20) is
nicked or worn, replace it.
10. Remove the packing nut/wet-cup (2).
11. 239388 Pump Model only: Remove the seal
guard kit (5) and washer (8) from the packing
nut (2).
12. Remove the bearing (3), glands (4 and 7), and
v-packings (6) from the throat of the pump cylinder
(11). Clean all parts and inspect for damage.
13. Lubricate all packings before reassembling the
pump.
14. One at a time, place a male gland (7*), four PTFE
v-packings (6*), a female gland (4*), and the
bearing (3*) in the throat of the cylinder (11). Be
sure the lips of the v-packings face down in the
throat. See Fig. 1.
15. 239388 Pump Model only: Install the washer (8)
and seal guard kit (5) into the packing nut (2).
Pack the packing nut inside and outside with
Vaseliner. Use Vaselinerbrand petroleum jelly
only.
16. Loosely install the packing nut (2).
17. One at a time, place a backup washer (15), a
female gland (19*), four PTFE v-packings (18*), a
male gland (16*), and a backup washer (15) on
the piston stud (20). Be sure the lips of the v-pack-
ings face up on the piston. See Fig. 1.
18. All Pump Models except 948640 and 948641:
Add shims (14*) below the top backup washer
(15*), using as many as necessary to obtain a total
packing stack height of 0.950–0.975 in.
(24.13–24.77 mm). For pump model 222017 use
stack height of 0.960–0.975 in. (24.38–24.77 mm).
19. Place the ball (13*) on the piston stud (20). Apply
liquid thread sealant to the piston threads and
screw the piston assembly into the displacement
rod (1), torquing it to 200 in-lb (23 N.m).
20. Lubricate the displacement rod (1), and guide it
through the bottom of the pump cylinder (11) and
carefully through the throat packings.
21. Install the o-ring (22*) on the intake valve housing
(24).
22. Place the ball (23*) on the seat of the intake valve
housing.
23. Slip the o-ring retainer (30) onto the intake housing
and align the holes in the two parts.
24. Compress spring (33*) on the ball (23*).
25. Install the ball stop pin (21) through the o-ring
retainer and intake valve housing (24), and screw
the housing into the pump cylinder (11). Torque
the housing to 50–60 ft-lb (70–80 NSm).
26. All Pump Models except 239388: Torque the
packing nut (2) to 50–60 ft-lb (70–80 NSm).
239388 Pump Model: Torque the packing nut (2)
to 20–25 ft-lb (30–35 NSm).
27. All Pump Models except 239388: Fill the packing
nut cavity with Throat Seal Liquid (TSL) for paints
and resins, or ISO Pump Oil (217374) for moisture
sensitive materials such as isocyanates.
28. Screw the displacement rod (1) into the air motor
connecting rod.
NOTE: If the ground wire was disconnected before
servicing, reconnect it before operating the pump.
Check that the entire system is properly grounded.

8 307944
Parts
1
2
*3
*4
*6
*7
*10
11
12 *13
*14
†15
†15
*16
*18
*19
†20
21 22*
24
*23
30†
02402B
*33
Model 222012, Series C
Ref.
No. Part No. Description Qty.
1 181513 ROD, displacement; sst 1
2 192174 NUT, packing; cst 1
3* 188402 SPACER, packing; sst 1
4* 181725 GLAND, female; cst 1
6* 183757 V-PACKING; PTFE 4
7* 181726 GLAND, male; cst 1
10* 109115 O-RING; PTFE 1
11 181649 CYLINDER, pump; cst 1
12 181510 SLEEVE, cylinder; sst 1
13* 101823 BALL; 5/16 in. dia.; sst 1
14* 189314 SHIM; sst 8
15† 176107 WASHER, back-up; cst 2
16* 181664 GLAND, male; cst 1
18* 165104 V-PACKING; PTFE 4
19* 181663 GLAND, female; cst 1
20† 205383 STUD, piston; cst, w/carbide seat 1
21 165049 PIN, stop, ball; sst 1
22* 109176 O-RING; PTFE 1
23* 100064 BALL; 5/8 in. dia.; cst 1
24 220297 HOUSING, valve, intake;
cst, w/carbide seat 1
30† 185265 RETAINER, o-ring; sst 1
33* 510956 SPRING, compression 1
* These parts are also included in Repair Kit 236597, which
may be purchased separately.
†Keep these spare parts on hand to reduce down time.
Model 222015, Series B
Ref.
No. Part No. Description Qty.
1 181656 ROD, displacement; sst 1
2 192174 NUT, packing; cst 1
3* 181655 BEARING, sleeve; acetal 1
4* 181652 GLAND, female; cst 1
6* 183758 V-PACKING; PTFE 4
7* 181651 GLAND, male; cst 1
10* 109115 O-RING; PTFE 1
11 181649 CYLINDER, pump; cst 1
12 181509 SLEEVE, cylinder; sst 1
13* 101823 BALL; 5/16 in. dia.; sst 1
14* 188204 SHIM; sst 8
15† 176108 WASHER, back-up; cst 2
16* 181724 GLAND, male; cst 1
18* 183760 V-PACKING; PTFE 4
19* 181723 GLAND, female; cst 1
20† 205386 STUD, piston; cst, w/carbide seat 1
21 165049 PIN, stop, ball; sst 1
22* 109176 O-RING; PTFE 1
23* 100064 BALL; 5/8 in. dia.; cst 1
24 220297 HOUSING, valve, intake;
cst, w/carbide seat 1
30† 185265 RETAINER, o-ring; sst 1
33*@ 510956 SPRING, compression 1
* These parts are also included in Repair Kit 236598, which
may be purchased separately.
†Keep these spare parts on hand to reduce down time.
@If this pump is being used in a VRHM system, spring
501095 is used. Purchase separately for repair.

307944 9
Parts
Model 222017, Series C
Ref.
No. Part No. Description Qty.
1 181660 ROD, displacement; sst 1
2 192174 NUT, packing; cst 1
3* 181659 BEARING, sleeve; acetal 1
4* 181719 GLAND, female; cst 1
6* 183861 V-PACKING; PTFE 4
7* 181720 GLAND, male; cst 1
10* 109115 O-RING; PTFE 1
11 181649 CYLINDER, pump; cst 1
12 181508 SLEEVE, cylinder; sst 1
13* 101823 BALL; 5/16 in. dia.; sst 1
14* 188204 SHIM; sst 8
15† 164391 WASHER, back-up; cst 2
16* 181722 GLAND, male; cst 1
18* 183759 V-PACKING; PTFE 4
19* 181721 GLAND, female; cst 1
20† 205388 STUD, piston; cst, w/carbide seat 1
21 165049 PIN, stop, ball; sst 1
22* 109176 O-RING; PTFE 1
23* 100064 BALL; 5/8 in. dia.; cst 1
24 220297 HOUSING, valve, intake;
cst, w/carbide seat 1
30† 185265 RETAINER, o-ring; sst 1
33*@ 510956 SPRING, compression 1
* These parts are also included in Repair Kit 236595, which
may be purchased separately.
†Keep these spare parts on hand to reduce down time.
@If this pump is being used in a VRHM system, spring
501095 is used. Purchase separately for repair.
Model 222019, Series B
Ref.
No. Part No. Description Qty.
1 181512 ROD, displacement; sst 1
2 192174 NUT, packing; cst 1
3* 181645 BEARING, sleeve; acetal 1
4* 181718 GLAND, female; cst 1
6* 183761 V-PACKING; PTFE 4
7* 181717 GLAND, male; cst 1
10* 109115 O-RING; PTFE 1
11 181649 CYLINDER, pump; cst 1
12 181507 SLEEVE, cylinder; sst 1
13* 101823 BALL; 5/16 in. dia.; sst 1
14* 189315 SHIM; sst 8
15† 176109 WASHER, back-up; cst 2
16* 181646 GLAND, male; cst 1
18* 165109 V-PACKING; PTFE 4
19* 181647 GLAND, female; cst 1
20† 207923 STUD, piston; cst, w/carbide seat 1
21 165049 PIN, stop, ball; sst 1
22* 109176 O-RING; PTFE 1
23* 100064 BALL; 5/8 in. dia.; cst 1
24 220297 HOUSING, valve, intake;
cst, w/carbide seat 1
30† 185265 RETAINER, o-ring; sst 1
33* 510956 SPRING, compression 1
* These parts are also included in Repair Kit 236596, which
may be purchased separately.
†Keep these spare parts on hand to reduce down time.

10 307944
Parts
1
2
*3
*4
*6
*7
*10
11
12
*13
*14
†15
†15
*16
*18
*19
†20
21 22*
24
*23
30†
*5
8
06911B
*33
Model 239388, Series A
Ref.
No. Part No. Description Qty.
1 181513 ROD, displacement; sst 1
2 192174 NUT, packing; cst 1
3* 15A730 SPACER, packing; sst 1
4* 181725 GLAND, female; cst 1
5* 113938 KIT, seal guard 1
6* 113937 V-PACKING; carbon-filled PTFE 4
7* 181726 GLAND, male; cst 1
8 192175 WASHER, support 1
10* 109115 O-RING; PTFE 1
11 181649 CYLINDER, pump; cst 1
12 181510 SLEEVE, cylinder; sst 1
13* 101823 BALL; 5/16 in. dia.; sst 1
14* 189314 SHIM; sst 8
15† 176107 WASHER, back-up; cst 2
16* 181664 GLAND, male; cst 1
18* 165104 V-PACKING; PTFE 4
19* 181663 GLAND, female; cst 1
20† 205383 STUD, piston; cst, w/carbide seat 1
21 165049 PIN, stop, ball; sst 1
22* 109176 O-RING; PTFE 1
23* 100064 BALL; 5/8 in. dia.; cst 1
24 220297 HOUSING, valve, intake;
cst, w/carbide seat 1
30† 185265 RETAINER, o-ring; sst 1
33* 510956 SPRING, compression 1
* These parts are also included in Repair Kit 239387, which
may be purchased separately.
†Keep these spare parts on hand to reduce down time.