Graco 206897 Bedienungsanleitung

Instructions – Parts List

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

STAINLESS STEEL

30:1 Ratio President Pump

3600 psi (25.2 MPa, 252 bar) Maximum Working Pressure

Model 206897, Series F

306769 Rev.G

Read warnings and instructions.

Parts

2 306769

Table of Contents

Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Hole Layout 15. . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Information 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious

injury or death if you do not follow the corresponding

instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the

corresponding instructions.

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

DRead all instruction manuals, tags, and labels before operating the equipment.

DUse the equipment only for its intended purpose. If you are not sure, contact your Graco distribu-

tor.

DDo not alter or modify this equipment.

DCheck equipment daily. Repair or replace worn or damaged parts immediately.

DDo not exceed the maximum working pressure of the lowest rated system component. Refer to

the Technical Data on page 14 for the maximum working pressure of this equipment.

DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the

Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s

warnings.

DDo not use hoses to pull equipment.

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).

DDo not lift pressurized equipment.

DWear hearing protection when operating this equipment.

DComply with all applicable local, state, and national fire, electrical, and safety regulations.

WARNING

INSTRUCTIONS

3306769

INJECTION HAZARD

Spray from the gun, leaks, or ruptured components can inject fluid into your body and cause

extremely serious injury, including the need for amputation. Fluid splashed into the eyes or onto 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

medical attention.

DDo not point the 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.

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 trigger safety operates before spraying.

DLock the gun trigger safety when you stop spraying.

DFollow the Pressure Relief Procedure on page 7 if the spray tip clogs and before cleaning,

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.

WARNING

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed into the eyes or onto 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 a respirator as recommended by the fluid

and solvent manufacturer.

4 306769

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. Refer to Grounding on page 5.

DIf there is any static sparking or you feel an electric shock while using this equipment, stop

spraying 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.

DKeep the spray area free of debris, including solvent, rags, and gasoline.

DElectrically disconnect all equipment in the spray area.

DExtinguish 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.

WARNING

MOVING PARTS HAZARD

Moving parts, such as the air motor piston, can pinch or amputate your fingers.

DKeep clear of all moving parts when starting or operating the pump.

DBefore servicing the equipment, follow the Pressure Relief Procedure on page 7 to prevent

the equipment from starting unexpectedly.

5306769

Installation

NOTE: Reference numbers and letters in parentheses

refer to callouts in the figures and parts drawing.

Mount the pump to suit the type of installation planned.

The pump dimensions and mounting hole layout are

shown on page 15.

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 4.

DPump: Use the ground wire and clamp. See

Fig. 1. Loosen the grounding lug locknut (W) and

washer (X). Insert one end of the ground wire (Y)

into the slot in the lug (Z), and tighten the locknut

securely. Connect the other end of the wire to a

true earth ground. Order Part No. 237569, Ground

Wire and Clamp.

0720

Fig. 1

DAir and fluid hoses: Use only electrically conductive

hoses with 500 ft (150 m) maximum combined hose

length to ensure grounding continuity.

DAir compressor: Follow manufacturer’s

recommendations.

DSpray gun or dispensing valve: Connect to a

properly grounded fluid hose and pump.

DObject being sprayed: Follow your local code.

DFluid supply container: Follow your local code.

DSolvent 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

continuity.

DTo maintain proper grounding continuity when

flushing or relieving pressure, always hold the metal

part of the spray gun firmly to the side of a

grounded metal pail, then trigger the gun.

6 306769

Installation

8000

AIR INLET

3/8 npt(f)

OUTLET

1/4 npt(f)

3/4 npt(f) INLET

NOTE: The Typical Installation shown above is only a

guide to selecting and installing required and optional

accessories. For assistance in designing a system to

suit your needs, contact your Graco representative.

WARNING

Two accessories are required in your system; a

bleed-type master air valve (A) and a fluid drain

valve (H). These accessories help reduce the risk

of serious injury including injection, splashing in the

eyes, and injury from moving parts if you are

adjusting or repairing the pump.

The bleed-type master air valve relieves air trapped

between this valve and the pump after the air

regulator is shut off. Trapped air can cause the

pump to cycle unexpectedly. Locate the valve close

to the pump.

The fluid drain valve assists in relieving fluid pres-

sure in the displacement pump, hose, and gun;

triggering the gun to relieve pressure may not be

sufficient.

Connect a suction hose or siphon tube (L) to the 3/4

npt(f) intake of the pump.

Install the air line accessories in the approximate order

shown in the Typical Installation. Install the

bleed-type master air valve (A) within easy reach of

the pump. A pump runaway valve (B) installed on the

air line senses when the pump if running too fast and

shuts off the air supply to the motor. An air filter (C)

removes harmful dirt and moisture from your

compressed air supply. For automatic air motor

lubrication, install an air line lubricator (D) close to the

pump air inlet. Install an air regulator (E) to control air

to the motor and pump speed.

Be sure the air supply hose is properly grounded, and

is at least 1/2 in. (13 mm) ID in order to supply an

adequate volume of air to the motor.

On the fluid line, install a drain valve (H) close to the

fluid outlet to assist in relieving fluid pressure and a

fluid filter (J) to help prevent tip clogging. Connect a

suitable, electrically conductive fluid hose and spray

gun to the pump’s 1/4 in. npt outlet.

7306769

Operation

Pressure Relief Procedure

WARNING

PRESSURIZED EQUIPMENT HAZARD

The system pressure must be manually

relieved to prevent the system from

starting or spraying accidentally. To

reduce the risk of an injury from accidental spray

from the gun, 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 tip/nozzle.

1. Lock the gun/valve trigger safety.

2. Close the pump air regulator.

3. Close the master bleed-type air valve (required in

your system).

4. Unlock the gun/valve trigger safety.

5. Hold a metal part of the gun/valve firmly to a

grounded metal waste container and trigger to

relieve the fluid pressure.

6. Lock the gun/valve trigger safety.

7. Open the pump drain valve (required in your

system), having a container ready to catch the

drainage.

8. Leave the drain valve open until you are ready to

spray again.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above, slowly loosen the tip

guard retaining nut or hose end coupling and relieve

pressure gradually, then loosen it completely. Then

clear the tip or hose.

8 306769

Operation

WARNING

Never operate the pump with the air motor plates

removed. Moving parts in the air motor can pinch

or amputate fingers.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

The pump was tested in oil, and some oil was left in

the pump. If the oil will contaminate the fluid you are

pumping, flush it out.

Fill the packing nut/wet-cup 1/2 full with Graco Throat

Seal Liquid or a compatible solvent. Keep the cup filled

at all times to help prevent the fluid you are pumping

from drying on the displacement rod and damaging the

throat packings.

To start the pump, turn on the main air supply. Open

the bleed-type master air valve (A). Open the (last)

spray gun. Slowly open the air regulator until the pump

is running smoothly (about 40 psi (280 kPa, 2.8 bar)].

Operate the pump until all air is purged from the

system. Release the gun trigger and engage the gun

safety latch.

Use the air regulator (F) to control fluid pressure and

pump speed. Always use the lowest pressure

necessary to get the desired results. Higher pressures

cause premature pump wear and spray tip wear, and

usually do not improve the spray pattern.

WARNING

To reduce the risk of overpressurizing your system,

which could result in component rupture and cause

serious injury, never exceed 120 psi (840 kPa, 8.4

bar) Maximum Incoming Air Pressure to the pump.

In a direct supply system, with adequate air pressure

supplied to the motor, the pump starts when the gun or

dispensing valve is opened, and stalls against

pressure when it is closed.

If the pump accelerates quickly or is running too fast,

stop it immediately. Check the fluid supply and refill it if

necessary. Prime the pump to remove all air from the

system, or flush the pump and relieve the pressure.

NOTE: A pump runaway valve (B) can be installed on

the air line to automatically shut off the pump if it starts

to run too fast.

Shutdown and Care of the Pump

Always stop the pump at the bottom of its stroke to

prevent fluid from drying on the rod and damaging the

throat packings.

If you are pumping fluid which dries, hardens, or sets

up, flush the system with a compatible solvent as often

as necessary to prevent a buildup of dried fluid in the

pump or hoses.

Check the tightness of the packing nut weekly. It

should be tight enough to stop leakage, but no tighter.

Always relieve the pressure before adjusting the

packing nut.

Flushing

To reduce the risk of injection injury, static sparking, or

splashing, relieve the pressure and remove the spray

tip before flushing. Hold a metal part of the gun/valve

firmly to the side of a grounded metal pail and use the

lowest possible fluid pressure during flushing.

9306769

Troubleshooting

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

NOTE: Check all possible problems and solutions

before disassembling the pump.

NOTE: Before servicing this equipment, always make

sure to relieve the pressure.

PROBLEM CAUSE SOLUTION

Pump does not operate, or

no fluid flow

Loose or broken pump parts Disassemble, check, repair.

no fluid flow Restricted line or inadequate air supply Clear, increase.

Exhausted fluid supply Refill and prime.

Clogged fluid hoses Clean, or replace.

Held open or worn piston or intake valve Repair. See page 10.

Damaged air motor Repair; see manual 306982.

Pump operates, but output

is low

Insufficient air supply Increase.

is low Exhausted fluid supply Refill and prime.

Obstructed gun or dispensing valve Clear.

Damaged fluid pump packings Replace.

Held open or worn piston or intake valve Repair. See page 10.

Erratic or accelerated op-

eration

Exhausted fluid supply Refill and prime.

eration Fluid intake or piston valve worn. Repair; see manual 307719.

10 306769

Service

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

Before you start

DHave all necessary parts on hand. Recommended

spare parts are shown in the parts list, for example,

(113*). A packing repair kit is not available.

DFor best results, always replace the glands when

replacing the packings.

DUse a compatible solvent to clean parts. Inspect for

wear or damage and replace parts as needed.

Scoring or irregular surfaces on the displacement

rod (108) or polished inlet wall of the sleeve (107)

causes premature packing wear and leaking. Check

these parts by rubbing a finger on the surface and

by holding the parts up to the light at a slight angle.

DUse light, water-proof grease wherever lubrication

is indicated.

Disassembly (See Figs. 2, 3, and 4)

1. Flush the pump, if possible. Relieve the pressure.

Disconnect all air and fluid hoses. Remove the

pump from its mounting and clamp it in a vise.

2. Unscrew the coupling (115) from the bushing

(114). Loosen the locknut setscrews (6) and

unscrew the locknuts (11) from the mounting tubes

(2, 3). Do not lose the nylon pellets (9) in the

locknuts. Pull the pump off the mounting tubes.

CAUTION

If replacing the mounting tubes (2, 3), wrench them

close to the air motor base during disassembly and

reassembly to prevent damaging the threads in the

air motor base. Also, lubricate the threads.

3. Clamp the displacement pump in a vise. Place a

wrench on the flats of the intake valve body (121)

and unscrew it. Remove all intake valve parts.

4. Unscrew the coupling bushing (114) from the

displacement rod (108). Loosen the packing nut

(120). Push the rod down as far as possible and

grasp the piston flats to pull the rod assembly out.

5. Unscrew the piston (119) and remove all packings,

ball, and glands.

6. Remove the packing nut (120), packings, and

glands from the pump housing (118) throat.

7. Clean and inspect all parts. If the sleeve (107)

does not come out with the rod, inspect it in place.

If you must remove the sleeve, and it does not

come out easily, contact your Graco

representative. Install the new sleeve with the

tapered end down.

NOTE: The seats in the intake (121) and piston (119)

bodies are hard carbide. Do not attempt to reseat the

balls as that will chip the seat.

Fig. 2

8001

115

118

116

102

106

117

121

INTAKE

VALVE

AIR

MOTOR

BASE

1CAUTION – Wrench upper ends of

tubes if removing from air motor.

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