Graco 207861 Manuale utente

Instructions

GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441

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

Part No. 241809, Series A

Includes 207861 and a static pipe mixer.

Part No. 241808, Series A

Includes 948338 and a static pipe mixer.

306992 Rev.G

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 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 6 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 6 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 on page 5.

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 Models 207861 and 241809 the solvent (S) and

material (M) inlet valves have 1/4 npt(m) threads. The

manifold outlet (F) has 1/2 npt(m) threads. Model

241809 includes a static mixer with a 3/8 npt(m) outlet.

See Fig. 1.

For Models 948338 and 241808 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. Model 241808 includes a static

mixer with a 3/8 npt(m) outlet. See Fig. 1.

Grounding

Proper grounding is an essential part of maintaining a

safe system.

To reduce the risk of static sparking, ground the pump.

Check your local electrical code for detailed grounding

instructions for your area and type of equipment. Be

sure to ground all of this equipment:

1. Pump: use a ground wire and clamp as instructed

in your pump instruction manual.

2. Fluid hoses: Use only grounded hoses with a max-

imum of 500 feet (150 m) combined hose length to

ensure grounding continuity.

3. Spray gun, manifold, or dispensing valve: obtain

grounding through connection to a properly

grounded connection to a properly grounded fluid

hose and sprayer.

4. Object being sprayed: according to local code.

5. Supply Containers: according to local code.

6. All solvent pails used when flushing, according to

local code. Use only metal pails, which are con-

ductive. Do not place the pail on a nonconductive

surface, such as paper or cardboard, which

interrupts the grounding continuity.

7. To maintain grounding continuity when flushing or

relieving pressure, always hold a metal part of the

gun firmly to the side of a grounded metal pail,

then trigger the gun.

Start-up

The mixer manifold was tested in oil, which was left in

to protect the manifold. Before operating, thoroughly

flush the manifold to prevent contamination of the

fluids.

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

Model 207861 Shown

6 306992

Installation

Flushing

CAUTION

Be sure to label all fluid path parts “component A” or

“component B” when disassembling them. Doing so

prevents interchanging A and B parts during reas-

sembly, which will contaminate the materials and the

fluid path through the equipment.

Color-coded chemically resistant tape may be used

to label the parts. Use blue for component A, green

for component B, white for solvent, and red for mixed

material.

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, then disconnect 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 cham-

ber. 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.

If you are using a static mixer, it should be visually

inspected weekly. Unscrew the static mixer from the

manifold. Insert a wooden dowel at the adapter end

and push the mixer element out of the static mixer.

Clean all parts with a compatible solvent and reassem-

ble.

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.

7306992

Troubleshooting

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

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 6.

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

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. If applicable, install the

static mixer with the arrow pointing downward. Close

the solvent valve and push the actuating lever back to

the closed position before starting the system.

8 306992

Parts

Model 207861, Series C and 241809, Series A

Fig. 2

*3h

*3b 3e

3b*

*3c

*3a

Ball Valve Detail

9306992

Parts

Model 207861, Series C includes items 1–18

Model 241809, Series A includes items 1–22

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; PTFE R

3b* 104892 . O-RING; PTFE 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

20 502265 BUSHING, reducer; 1/2 x 3/8

(241809 only) 1

21 512506 MIXER, static pipe; 3/8 x 3/8 npt(m)

(241809 only) 1

22 158581 COUPLING, hex; 1/2 in

(241809 only) 1

nKeep these spare parts on hand to reduce down time.

* These parts are included in Repair Kit 217560, which may

be purchased separately.

10 306992

Parts

Model 948338, Series A and 241808, Series A

TI1915B

4j 4b4h 4d4g

4i 4c

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