Graco Series A Gebrauchs- und Pflegehandbuch

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441

309577D

Repair - Parts

Displacement Pump

FOR USE WITH REACTOR™ELECTRIC PROPORTIONERS

3500 psi (24.5 MPa, 245 bar) Maximum Working Pressure

Component A (ISO) Pumps

with wet-cup flush feature

Part No. 246830, Series A

0.396 in.2(2.55 cm2)

Part No. 246831, Series A

0.552 in.2(3.56 cm2)

Part No. 246832, Series A

0.743 in.2(4.79 cm2)

Component B (Resin) Pumps

Part No. 245970, Series A

0.396 in.2(2.55 cm2)

Part No. 245971, Series A

0.552 in.2(3.56 cm2)

Part No. 245972, Series A

0.743 in.2(4.79 cm2)

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

TI2663A

TI3733a

Manual Conventions

2309577D

Contents

Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 5

Tools Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Clean and Inspect Parts . . . . . . . . . . . . . . . . . . . . . 6

Supply Wet-cups with Throat Seal Liquid . . . . . . . 7

Cutaway Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 28

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 28

Manual Conventions

Warning

Caution

Note

Related Manuals

The following manuals are available for the Reactor™.

Refer to these manuals for detailed equipment informa-

tion.

WARNING

A warning alerts you to possible serious injury or

death if you do not follow instructions.

Symbols, such as fluid injection (shown), alert you to a

specific hazard and direct you to read the indicated

hazard warnings on pages 3-4.

CAUTION

A caution alerts you to possible equipment damage or

destruction if you do not follow instructions.

A note indicates additional helpful information.

Reactor Electric Proportioner

Part No. Description

309551 Reactor Electric Proportioner,

Operation Manual (English)

309574 Reactor Electric Proportioner,

Repair-Parts Manual (English)

309911 Reactor Pump Wet-Cup Flush

Kits

Warning

309577D 3

WARNING

SKIN INJECTION HAZARD

High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just

a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

• Do not point the gun at anyone or at any part of the body.

• Do not put your hand or fingers over the gun fluid nozzle.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Do not “blow back” fluid; this is not an air spray system.

• Follow Pressure Relief Procedure, page 5, when you stop spraying and before cleaning, checking,

or servicing equipment.

• Use lowest possible pressure when flushing, priming, or troubleshooting.

• Engage spray gun piston safety lock when not spraying.

• Tighten all fluid connections before operating the equipment.

• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately. High pres-

sure hose cannot be recoupled; replace the entire hose.

FIRE AND EXPLOSION HAZARD

Solvent and fumes in work area can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well ventilated area.

• Eliminate all ignition sources, such as pilot lights, cigarettes and plastic drop cloths (potential static

arc).

• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.

• Keep the work area free of debris, including solvent, rags, and gasoline.

• Ground equipment and conductive objects. See Grounding in your Reactor manual.

• Hold gun firmly to side of grounded pail when triggering into pail.

• Use only grounded hoses.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment

until you identify and correct the problem.

EQUIPMENT MISUSE HAZARD

Misuse can cause serious injury or death.

• For professional use only.

• Use equipment only for its intended purpose. Call your Graco distributor for information.

• Read manuals, warnings, tags, and labels before operating equipment. Follow instructions.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• Do not alter or modify equipment. Use only Graco parts and accessories.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Data in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all

equipment manuals. Read fluid and solvent manufacturer’s warnings.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not use hoses to pull equipment.

• Comply with all applicable safety regulations.

Warning

4309577D

BURN HAZARD

This equipment is used with heated fluid, which can cause equipment surfaces to become very hot. To

avoid severe burns:

• Do not touch hot fluid or equipment.

• Allow equipment to cool completely before touching it.

• Wear gloves if fluid temperature exceeds 110°F (43°C).

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or

swallowed.

• Read Material Safety Data Sheet (MSDS) to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

PERSONAL PROTECTIVE EQUIPMENT

You must wear proper protective equipment when operating, servicing, or when in the operating area of

the equipment to help protect you from serious injury, including eye injury; inhalation of toxic fumes; and

hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Gloves, clothing, and respirator as recommended by the fluid and solvent manufacturer

• Hearing protection.

WARNING

Pressure Relief Procedure

309577D 5

Pressure Relief

Procedure

WARNING

Read warnings, page 3.

1. Relieve pressure in gun and perform gun shut-

down procedure. See gun manual.

2. Close gun fluid manifold valves A and B.

TI2421A

3. Shut off feed pumps and agitator, if used.

4. Turn PRESSURE RELIEF/SPRAY valves (SA,

SB) to PRESSURE RELIEF. Route fluid to waste

containers or supply tanks. Ensure that gauges

drop to 0.

TI2481a

SA SB

Tools Needed

6309577D

Tools Needed

• Vise with flat jaws

• 12 in. adjustable, open end wrench (2)

• Non-sparking hammer, 20 oz maximum

• Small screwdriver

• Throat Seal Liquid (TSL), Graco Part No. 206995

• ISO Pump Oil, Graco Part No. 217374

• Pick or long small screwdriver

• Snap-ring pliers

• 1/2 in. (13 mm) diameter plastic rod

• 7/8 in. deep-well socket (246830 and 245970 only)

• 1/2 in. (13 mm) x 2.5 in. (64 mm) bolt with washers

and nut

• Channel locks

• Dropcloth and rags

Repair Kits

A repair kit is available for your pump. Kit parts are

marked with an asterisk, for example (3*). See page 23.

Kit must be purchased separately. For best results, use

all parts in the kit.

Clean and Inspect

Parts

1. Clean and inspect all parts. Intake and piston

ball seats, sleeve, and displacement rod must

not be worn, scratched, or damaged.

2. Remove and clean sleeve when repacking

pump.

Supply Wet-cups with Throat Seal Liquid

309577D 7

Supply Wet-cups with

Throat Seal Liquid

WARNING

Pump rod and connecting rod move during operation.

Moving parts can cause serious injury such as pinch-

ing or amputation. Keep hands and fingers away from

wet-cup during operation. Turn main power OFF

before filling wet cup.

1. Component A (ISO) Pump: Keep reservoir (R)

3/4 filled with Graco Throat Seal Liquid (TSL),

Part No. 206995. Wet-cup piston (28) circulates

TSL through packing nut/wet-cup (19), to carry

away isocyanate film on displacement rod.

After some time TSL will thicken and darken,

and must be replaced. Thick, dirty TSL will not

pump through lines and will harden in wet-cup.

Check condition of TSL every week, minimum,

and change when needed.

TI3765a-2

2. Component B (Resin) Pump: Check felt wash-

ers (21) in packing nut/wet-cup (19) daily. Keep

saturated with Graco Throat Seal Liquid (TSL),

Part No. 206995, to prevent material from hard-

ening on displacement rod. Replace felt wash-

ers when worn or contaminated with hardened

material.

TI3765a-1

Supply Wet-cups with Throat Seal Liquid

8309577D

Cutaway Views

309577D 9

Cutaway Views

Component A (ISO) Pump Component B (Resin) Pump

19†

†*22

†25

24*†

*17

*20

*16

*15

14*

13*

11*

10*

‡*8

TI3734b

26*†

27*†

†28

19†*22

*21

*17

*20

*16

*15

14*

13*

11*

10*

‡*8

TI2668b

Disassembly

10 309577D

Disassembly

WARNING

Pump rod and connecting rod move during operation.

Moving parts can cause serious injury such as pinch-

ing or amputation. Keep hands and fingers away from

connecting rod during operation.

1. Shut off , , and heat zones.

2. Flush pumps. See Reactor manual.

3. Relieve pressure, page 5.

4. Press . Motor will run until pumps are at

bottom of strokes, then shut off.

5. Turn main power OFF . Disconnect

power supply.

Steps 6-8 apply to pump A. See FIG. 1. To dis-

connect pump B, go to steps 9 and 10. Use

dropcloth or rags to protect Reactor and sur-

rounding area from spills.

6. Disconnect fluid inlet (C) and outlet (D). Also

disconnect steel outlet tube from heater inlet.

7. Disconnect tubes (T). Remove tube fittings (U)

from wet-cup.

8. Loosen star-shaped locknut (G) by hitting firmly

with a non-sparking hammer. Unscrew pump far

enough to expose retaining pin under plastic fin-

ger guard. Push retaining spring up. Push pin

out. Continue unscrewing pump.

Steps 9 and 10 apply to pump B. See FIG. 2.

Use dropcloth or rags to protect Reactor and

surrounding area from spills.

9. Disconnect fluid inlet (C) and outlet (D). Also

disconnect steel outlet tube from heater inlet.

10. Push retaining spring (E) up. Push pin (F) out.

Loosen star-shaped locknut (G) by hitting firmly

with a non-sparking hammer. Unscrew pump.

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