Graco C Series Operation manual

Instructions – Parts List
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1984, Graco Inc. is registered to I.S. EN ISO 9001
PLURAL COMPONENT
Static Mixer Control
3000 psi (21 MPa, 210 bar) Maximum Fluid Working Pressure
Part No. 207861, Series C
Part No. 948338, Series A
306992F
Read warnings and instructions.
See page 2 for Table of Contents.
8613A
Model 207861 Shown
Parts

2 306992
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 14. . . . . . . . . . . . . . . . . . . . . .
Graco Information 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 stated on the equipment or in the Technical Data
for your equipment. Do not exceed the maximum working pressure of the lowest rated component
in your system.
DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
DWear hearing protection when operating this equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.

3306992
WARNING
INJECTION HAZARD
Spray from the gun/valve, hose leaks or ruptured components can inject fluid into your body and
cause extremely serious injury, including the need for amputation. Fluid splashed 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 medi-
cal attention.
DDo not point the gun/valve at anyone or at any part of the body.
DDo not put your hand or fingers over the spray tip/nozzle.
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.
DAlways have the tip guard and the trigger guard on the gun when spraying.
DCheck the gun diffuser operation weekly. Refer to the gun manual.
DBe sure the gun/valve trigger safety operates before spraying/dispensing.
DLock the gun/valve trigger safety when you stop spraying/dispensing.
DFollow the Pressure Relief Procedure on page 5 if the spray tip/nozzle clogs and before clean-
ing, checking or servicing the equipment.
DTighten all fluid connections before operating the equipment.
DCheck the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately. Do not
repair high pressure couplings; you must replace the entire hose.
DFluid hoses must have spring guards on both ends, to help protect them from rupture caused by
kinks or bends near the couplings.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
DKeep clear of all moving parts when starting or operating the equipment.
DBefore checking or servicing the equipment, follow the Pressure Relief Procedure on page 5 to
prevent the equipment from starting unexpectedly.

4 306992
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.
DGround the equipment and the object being sprayed. Follow the grounding instructions in your
separate pump or system manual.
DIf there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing/dispensing immediately. Do not use the equipment until you identify and correct the problem.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed/dispensed.
DKeep the spray/dispense area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the spray/dispense area.
DExtinguish all open flames or pilot lights in the spray/dispense area.
DDo not smoke in the spray/dispense area.
DDo not turn on or off any light switch in the spray/dispense area while operating or if fumes are
present.
DDo not operate a gasoline engine in the spray/dispense 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.
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.
REACTIVE CHEMICALS HAZARD
Graco Inc. does not manufacture or supply any of the reactive chemical components that are used in
this equipment, and is not responsible for their effects. Because of the vast number of chemicals that
could be used, and their varying chemical reactions, the buyer and user of this equipment should de-
termine all facts relating to the materials used, including any of the potential hazards involved. Particu-
lar inquiry and investigation should be made into potential dangers relating to toxic fumes, fires, explo-
sions, reaction times, and exposure of human beings to the individual components or their resultant
mixtures. Graco assumes no responsibility for loss, damage, expense, or claims for bodily injury or
property damage, direct or consequential, arising from use of such chemical components.

5306992
Installation
For assistance in setting up a plural component sys-
tem, you should contact your Graco distributor. This
will help ensure that you select the proper type and
size of equipment for your job.
For Model 207861, the solvent (S) and material (M)
inlet valves have 1/4 npt(m) threads. The manifold out-
let (F) has 1/2 npt(m) threads. See Fig. 1.
For Model 948338, the solvent (S) inlet valve has 1/4
npt(m) threads. The material (M) inlet valves have 1/2
npt(f) threads. The manifold outlet (F) has 1/2 npt(f)
threads. See Fig. 1.
Start and prime the solvent pump and check the flush-
ing system before connecting the material hoses.
Push the actuating lever forward to open the material
valves and back to close them.
Open the solvent valve and flush the mixing equipment
immediately after closing the material valves, to pre-
vent material from hardening in the mixer or dispenser.
8613A
Fig. 1
Move Lever Forward to Open
M
S
M
F
Model 207861 Shown
Flushing
When you stop spraying/dispensing for a short time,
close the mixer material valves and open the solvent
flush valve. Point the material outlet into a waste
container, open the gun/valve and flush until the sol-
vent is clean. Close the solvent valve, and open the
gun/valve to relieve the pressure.
For longer shutdowns, solvent flush as above, follow
the Pressure Relief Procedure below, then discon-
nect the hose and equipment from the mixer. Soak and
clean parts with clean solvent and a stiff brush. Rinse
and blow dry with air. Clean all material off the mixer
chamber. Do not reassemble until you are ready to use
the mixer again.
Solvent may channel through viscous materials and
leave a coating of mixed material on the inner tube of
your hose. Be sure all material is thoroughly flushed
from the hose after each use.
Disconnect all other spray/dispensing equipment, as
necessary, and clean thoroughly.
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying/dispensing acciden-
tally. 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/dispensing,
Dcheck or service any of the system equipment,
Dor install or clean the spray tip/nozzle.
1. Close the mixer material valves.
2. Open the solvent flush valve and flush until clean.
3. Shut off the material and solvent pumps.
4. Open the gun/valve to relieve pressure.
5. If material has hardened in the hose(s) or mixer,
close the material valves, shut off the material and
solvent pumps, and slowly loosen the material inlet
hose(s) to relieve pressure, then remove the
dispensing hose.

6 306992
Troubleshooting
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
1. Relieve the pressure before you check or service
any system equipment.
2. Check all possible causes and solutions in the
Troubleshooting Chart before disassembling the
mixer for repair. If the problem is still not corrected,
refer to the Troubleshooting section of the sepa-
rate manuals supplied with each component in
your system.
Problem Cause Solution
Little or no part A (resin) output Plugged material inlet or check
valve
Clean
The fluid supply container is empty Refill, prime
Little or no part B (catalyst) output Plugged material inlet or check
valve
Clean
The material supply container is
empty.
Refill, prime
The mixed material will not flush
out
There is hardened material in the
mixing chamber
Clean the chamber with a compatible
solvent
The solvent supply container is empty Refill, prime
The solvent is not compatible with the
material
Check, correct*
* Be sure to read and observe the manufacturer’s literature before using any material in this system.
Service
Clean/Service Inlet Check Valves
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
NOTE: Reference numbers refer to model 207861.
Relieve the pressure.
Remove the actuating lever (1) from the ball valves (3).
See Fig. 2. Remove and disassemble the valves. See
the Detail in Fig. 2. Clean all parts and inspect for wear
or damage, replacing parts as necessary. Lubricate the
parts with light grease and reassemble. Align the round
hole (A) of the ball (3d) with the hole in the valve
housing (3i) and the square hole (B) with the stem hole
(C) in the valve housing.
To clean or repair the check valve, disconnect the
swivel (2) from the seat (13). Screw the seat out of the
manifold (18). Remove the ball (6), spring (16), and
guide (14). Thoroughly clean all parts and the pas-
sageways of the manifold. Inspect parts for wear or
damage and replace parts as necessary. Be sure there
are no nicks or scratches on the seat which would
prevent the ball from seating properly. Reassemble,
screwing the seat in tightly.
Screw the ball valve (3) into the swivel union (2).
Screw the swivel onto the check valve body (13). With
both inlet valves opened or closed, install the actuating
lever (1). Connect the hoses. Close the solvent valve
and push the actuating lever back to the closed posi-
tion before starting the system.

7306992
Service
Fig. 2
8612A
12
1
8
11
7
4
3
10
73
2
9
15
5
18
3
7
13
17
6
16
14
3j
3i
*3h
*3b 3e
3b
3h
3d*
3g
*3c
3f
*3a
A
BC
13
Ball Valve Detail
Model 207861, Series C

8 306992
Parts
Model 207861, Series C
Fig. 3 8612A
12
1
8
11
7
4
3
10
73
2
9
15
5
18
3
7
13
17
6
16
14
3j
3i
*3h
*3b 3e
3b*
3h
3d
3g
*3c
3f
*3a
13
Ball Valve Detail

9306992
Parts
Model 207861, Series C
Ref
No. Part No. Description Qty.
Ref
No. Part No. Description Qty.
1 217561 LEVER, actuating 1
2 207411 SWIVEL, union adapter; 45_;
3/8 npt(f) 2
3 213040 BALL VALVE
Includes items 3a–3j 3
3a* 104893 . O-RING; R1
3b* 104892 . O-RING; R2
3c* 164900 . WASHER; acetal homopolymer 2
3d* 178746 . BALL, valve 1
3e 165274 . NIPPLE, adapter;
1/4 npt(m) x 11/16 thd 1
3f 165964 . NUT, stem packing 1
3g 178745 . STEM, valve 1
3h* 172094 . SEAT, ball 2
3i 178743 . HOUSING, valve 1
3j 165599 . STUD; 3/8 npt(m) x 11/16 thd 1
4 178747 LEVER, solvent valve 1
5 100403 PLUG, pipe 2
6n101823 BALL; sst; 5/16”(8 mm) dia 3
7n102310 CAPNUT, hex hd; 10–32 thd; nylon
insert 3
8 102410 CAPSCREW, soc hd; 6–32 thd;
3/8”(10 mm) long 2
9 102598 CAPSCREW, soc hd; 10–32 thd;
1/2”(13 mm) long 2
10 156173 UNION, straight swivel;
3/8 npsm(f) x 3/8 npt(f) 1
11 167124 GRIP, hand, lower; nylon 1
12 167125 GRIP, hand, upper; nylon 1
13 167743 SEAT, check valve 3
14n167762 GUIDE, spring, check valve 3
15 167763 BRACKET, mounting 1
16n167770 SPRING, helical compression, check
valves 3
17n168492 GASKET; copper 3
18 208185 MANIFOLD, mixer control;
1/2 npt(m) outlet 1
nKeep these spare parts on hand to reduce down time.
* These parts are included in Repair Kit 217560, which may
be purchased separately.
PTFE
PTFE

10 306992
Parts
Model 948338, Series A
TI1915B
9
4
7
3
5
8
1
6
2
4j 4b 4h
4d 4g
4k
4a
4e
4i
4c
4f

11306992
Parts
Model 948338, Series A
Ref
No. Part No. Description Qty.
Ref
No. Part No. Description Qty.
1 102022 PIPE BUSHING 1
2 113093 PIPE CONNECTOR 1
3 166242 FITTING, elbow, street, 90 deg 2
4 214037 BALL VALVE; see manual 306861;
Includes items 4a–4k 1
4a 102310 . CAPNUT; hex hd; 10–32 thd; nylon
insert 1
4b 104893 . O-RING; 1
4c 104892 . O-RING; 2
4d 164900 . WASHER; acetal homopolymer 2
4e 178746 . BALL, valve 1
4f 165274 . NIPPLE, adapter;
1/4 npt(m) x 11/16 thd 2
4g 165964 . NUT, stem packing 1
4h 178745 . STEM, valve 1
4i 172094 . SEAT, ball 2
4j 178743 . HOUSING, valve 1
4k 178747 . LEVER, solvent valve 1
5 501603 CHECK VALVE, 1/2 npt mbe sst tf 2
6 501867 CHECK VALVE 1
7 116697 BALL VALVE, 5000 psi, 1/2 npt (f) 2
8 624303 MANIFOLD, mix sst 1/2 npt(4) 1
9 902554 HANDLE, mixer manifold 1
PTFE
PTFE

12 306992
Technical Data
Category Data
Material Inlet Model 207861: 1/4 npt (m)
Model 948338: 1/2 npt(m)
Solvent Inlet 1/4 npt(m)
Material Outlet 1/2 npt(m)
Wetted Parts Stainless Steel, Carbon Steel, R, Nylon
Weight 6 lb (2.7 kg)
R
PTFE
PTFE

13306992
Dimensions
8613A
1/4 in. (6 mm) Diameter
Mounting Holes
7–1/2 in.
(191 mm)
7–1/2 in.
(191 mm)
6 in.
(152 mm)
1/2 npt Outlet
1/4 npt Material Inlet
1/4 npt Solvent Inlet
Model 207861
(In Closed Position)
TI1914B
6.58 in.
(167 mm)
9.86 in.
(250 mm)
1/2 npt Outlet
1/2 npt Material Inlet
1/4 npt Solvent Inlet
Model 948338
(In Open Position)

14 306992
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 by an authorized Graco distributor 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 accor-
dance 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 àla 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:
1–800–367–4023 Toll Free
612–623–6921
612–378–3505
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.
Sales Offices: Minneapolis, Detroit
International Offices: Belgium, Korea, Hong Kong, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
www.graco.com
PRINTED IN U.S.A. 306992 02/1969 Revised 02/2002