Hitachi AA 2000 User Manual

INSTRUCTIONS-PARTS

This

manual contains important warnings and information. READ AND KEEP FOR REFERENCE.

INSTRUCTIONS

LIST

HIGH PRESSURE AIR-ASSISTED AIRLESS

307–586

Rev

. P

Supersedes M

and PCN P

Model

950 psi (66 bar) Maximum Working Fluid Pressure 100 psi (7 bar) Maximum Working Air Pressure

Part Number 217–292, Series C

Includes

U.S. United Kingdom Patent No. 2 111 406 B Patented 1984 Canada Brevete 1984 French Patent No. 82–21202 Foreign Patents Pending

Warnings 2. Installation 4 Operation 7 Troubleshooting 12 Service 14 Parts 16 Spray T Accessories 20 Technical Dimensions 21 Warranty 24 Graco

spray tip of choice.

Patent Nos. 3,843,052; 4,386,739

Table

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ip and Air Cap Selection Charts

Data

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Phone Number

2000

 Spray Gun

of Contents

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

18.

21.

24.

GRACO INC. P.O. BOX 1441

COPYRIGHT

Graco

Inc. is registered to I.S. EN ISO 9001

MINNEAPOLIS, MN

1982, GRACO INC.

55440–1441

WARNING

INJECTION HAZARD

Spray

from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an extremely serious injury can also cause a serious injury



Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi

cal attention.



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



Do not put hand or fingers over the spray tip.



Do not stop or deflect fluid leaks with your hand, body



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



Check the gun dif



Be sure the gun trigger safety operates before spraying.



Lock the gun trigger safety when you stop spraying.



Follow the sure; stop spraying; clean, check, or service the equipment; or install or clean the spray tip.

 T

ighten all the fluid connections before operating the equipment.

Pressure Relief Procedure

, including the need for amputation. Splashing fluid in the eyes or on the skin

, glove, or rag.

fuser operation weekly

on page 7 whenever you: are instructed to relieve pres



Check the hoses, tubes, and couplings daily Permanently coupled hoses cannot be repaired; replace the entire hose.

. Replace worn, damaged, or loose parts immediately

FIRE AND EXPLOSION HAZARD

Improper result in fire or explosion and serious injury



grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and

Ground the equipment and the object being sprayed. See Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being

sprayed. Extinguish all the open flames or pilot lights in the spray area. Electrically disconnect all the equipment in the spray area. Keep the spray area free of debris, including solvent, rags, and gasoline. Do not turn on or of Do not smoke in the spray area. Do not operate a gasoline engine in the spray area. If there is any static sparking while using the equipment,

correct the problem.

f any light switch in the spray area while operating or if fumes are present.

Ground the System

stop spraying immediately

on page 6.

. Identify and



WARNING

EQUIPMENT MISUSE HAZARD

INSTRUCTIONS

Equipment in serious injury

This equipment is for professional use only

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

Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco distributor.

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

Check the equipment daily

Do not exceed the maximum working pressure of the lowest rated system component. This equip ment has a

ing air pressure

Route the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 180

Do not use the hoses to pull the equipment.

Fluid hoses must have spring guards on both ends to protect them from rupture caused by kinks or bends near the couplings.

Use fluids or solvents that are compatible with the equipment wetted parts. See the

Data

misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result

. Repair or replace worn or damaged parts immediately

950 psi (66 bar) maximum working pressure at 100 psi (7 bar) maximum incom

_F (82_

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

C) or below –40

_F (–40_C).

Technical

D W

ear hearing protection when operating this equipment.

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

TOXIC FLUID HAZARD

Hazardous skin, swallowed, or inhaled.

Know the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings.

Store hazardous fluid in an approved container state and national guidelines.

D W

fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the

. Dispose of hazardous fluid according to all local,

ear the appropriate protective clothing, gloves, eyewear and respirator

 

Installation

KEY

A Air

Line Filter

Air Line Lubricator

Bleed–type Master Air V Pump Air Regulator

D E*

Fluid Drain V Fluid Shutof

Fluid Filter

G H*

Grounded Fluid Hose

J Pump

Air Line

K L

Air Pressure Regulator

Pump Fluid Inlet

In–line Fluid Filter

Pattern Adjustment Valve Knob

Fluid Pressure Regulator

Pressure Gauge

rigger Safety

Pump Runaway V Ground Wire

V* W

Gun Fluid Connector

Air Shutof

f V

alve

f V

alve

*Equipment required for safe operation of the

system. Must be purchased separately

Fig.

Typical Installation

The

typical installation shown in Fig. 1 is only a guide for selecting and installing air-assisted airless spray systems. It is not an actual system design. Contact your Graco distributor for assistance in designing a system to meet your needs.

The Graco fluid pump Model 217–523 is designed for use in high pressure air-assisted airless systems. It has a maximum working pressure of 950 psi (66 bar). See instruction manual 307–595 for information on this pump.

Ventilate the Spray Booth

WARNING

TOXIC

FLUID HAZARD

o prevent hazardous concentrations of toxic and/or flammable vapors, spray only in a properly ventilated spray booth.

Never operate the spray gun unless ventilation fans are operating.

Check and follow all of the National, State and Local codes regarding air exhaust velocity require ments.



Installation

Connect the Air Line

1. Install

an air line filter (A) to ensure a clean, dry air supply to the gun. Dirt and moisture in the line can ruin the appearance of your finished piece. See Fig. 1.

Install an air pressure regulator (L) on the gun air supply line to control the air pressure to the gun.

Install an air pressure regulator (D) on the pump air supply line to control air pressure to the pump.

Install a bleed-type air shutof main air line and on the pump air line, downstream of the pump air regulator pump. Install an additional bleed-type valve on each pump air supply line to relieve air trapped between this valve and the pump after the air regulator is shut of

f valve (C) on the

, to shut of

f air to the

WARNING

The bleed-type air shutof system to relieve air trapped between this valve and the pump after the air regulator is closed. T

rapped air can cause the pump to cycle unexpect

edly

, which could result in serious injury

NOTE:

compound male thread that is compatible with NPSM and BSP female swivel connectors.

The gun air inlet has a 1/4–18 npsm (R1/4–19)

Install an air shutof supply line, downstream of the gun air regulator, to shut of

f air to the gun(s).

f valve is required in your

f valve (X) on each gun air

Connect the Fluid Line

WARNING

INJECTION

o reduce the risk of property damage or serious injury which could be caused by component rupture or unrelieved fluid pressure,



A fluid drain valve(s) (E) is required in your system to assist in relieving fluid pressure in the displacement pump, hose and gun; triggering the gun to relieve pressure may not be suf cient.



A fluid pressure regulator (Q) must be installed in the system if the pump’ pressure exceeds the gun’s maximum fluid working pressure of 950 psi (66 bar).

Install a fluid filter (G) and drain valve(s) (E) close to the pump’ in relieving fluid pressure in the displacement pump, hose, and gun. See Fig. 1.

Install a fluid pressure regulator (Q) to control fluid

pressure to the gun.

NOTE:

fluid pressure. Y accurately with a fluid pressure regulator than by regulating the air pressure to the pump.

Some applications require fine-tuned control of

Install a fluid shutof supply to the gun.

Install fluid drain valve(s) (E) close to the pump’ fluid outlet.

s fluid outlet. The drain valve assists

ou can control fluid pressure more

HAZARD

, including fluid injection,

s maximum working

f valve (F) to shut of

f the fluid

fi-

Connect the air hose (K) from the air supply to the gun air inlet.

NOTE:

(R1/4–19) compound male thread that is compatible with NPSM and BSP female connectors.

The gun fluid fitting (W) has a 1/4–18 npsm

Install an in-line fluid filter (N) on the gun fluid fitting (W) to avoid clogging the spray tip with particles from the fluid.

Connect the grounded fluid hose (H) to the gun fluid fitting (W) or optional in-line filter (N).

 

Installation

Ground the System

WARNING

FIRE

AND EXPLOSION HAZARD

Improper grounding could cause static sparking, which could cause a fire or explosion. T damage or serious injury grounding instructions below

The following grounding instructions are minimum requirements for a system. Y other equipment or objects which must be grounded. Check your local electrical code for detailed grounding instructions for your area and type of equipment. Y system must be connected to a true earth ground.

1. Pump: wire and clamp between the fluid supply and a true earth ground as instructed in your separate pump instruction manual.

Air compressors and hydraulic power sup plies:

recommendations.

Ground the pump by connecting a ground

Ground them according to the manufacturer

o reduce the risk of property

, follow the

our system may include

our

3. Air

5. Fluid supply container:

6. Object being sprayed:

7. All solvent pails used when flushing:

8. To maintain grounding continuity when flush-

fluid, and hydraulic hoses connected to

the pump

mum of 500 feet (150 m) combined hose length to ensure grounding continuity resistance of your air and fluid hoses at least once a week. If the resistance exceeds the recom mended limits, replace the hose immediately

Spray gun: Ground the gun by connecting it to a

properly grounded fluid hose and pump.

local code.

them according to local code. Use only metal pails, which are conductive. Do not place the pail on a non-conductive surface, such as paper or card board, which interrupts the grounding continuity

ing or relieving pressure: Always hold a metal

part of the gun firmly to the side of a grounded metal pail, then trigger the gun.

Use only grounded hoses with a maxi

. Check the electrical

Ground it according to

Ground



Operation

Safety

WARNING

INJECTION HAZARD

Remember For your safety be sure to read and follow the W

and throughout the text of this instruction manual. Keep the wallet sized warning card 179–960,

provided with the gun, with the operator of this equipment at all times. The card contains important treatment information should an injection injury occur

. Additional cards are available at no charge

from Graco.

Pressure Relief Procedure

, this is not an air spray gun.

arnings on pages 2 and 3

Lock the gun trigger safety again.

Open the pump drain valve (required in the sys tem) to help relieve fluid pressure in the displace ment pump. In addition, open the drain valve connected to the fluid pressure gauge (in a system with fluid regulation) to help relieve fluid pressure in the hose and gun. T pressure may not be suf ready to catch the drainage.

Leave the drain valve(s) open until you are ready to spray again.

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 slowly loosen the hose end coupling and relieve pressure gradually completely

. Now clear the tip or hose obstruction.

riggering the gun to relieve

ficient. Have a container

, v

, then loosen the coupling

ery

INJECTION

The system pressure must be manually relieved to prevent the system from

starting or spraying accidentally under high pressure can be injected through the skin and cause serious injury an injury from injection, splashing fluid, or moving parts, follow the whenever you:



are instructed to relieve the pressure,



stop spraying,



check or service any of the system equipment,



or install or clean the spray tip.

Lock the spray gun trigger safety to avoid acciden tally triggering the gun. See Fig. 2.

Shut of

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

Unlock the gun trigger safety

Hold a metal part of the gun firmly to the side of a grounded metal waste container and trigger the gun to relieve the fluid pressure.

f the power to the pump.

HAZARD

. Fluid

. T

o reduce the risk of

Pressure Relief Procedure

Trigger

Unlocked or in

SAFE

Fig. 2

Safety

OFF

Position

rigger Safety Locked

or in

ON SAFE

Position

 

Operation

How the Air-Assisted Airless Spray Gun Operates

The

air-assisted airless spray gun combines airless and air spraying concepts. The spray tip shapes the fluid into a fan pattern, as does a conventional airless spray tip. Air from the air cap further atomizes the fluid and completes the atomization of the paint tails into the pattern to produce a more uniform pattern. The pattern adjustment valve controls the width of the pattern.



When spraying at fluid pressures below 500 psi (35 bar) or spraying light viscosity fluids, use optional fluid needle 220–413 (see page 20). The standard needle may not provide positive shut of pressures or for such fluids.



When spraying acid catalyzed varnishes, use optional fluid needle 222–497 (see page 20). Using a standard needle may decrease needle life and leakage may occur

f at those

Note that the air-assisted airless spray gun dif an air spray gun in that increasing the pattern air reduces the pattern width. To increase the pattern width, less pattern air or a larger size tip must be used.

The spray gun has a built-in lead and lag operation. When triggered, the gun begins emitting air before the fluid is discharged. When the trigger is released, the fluid stops before the air flow stops. This helps assure the spray is atomized and prevents fluid buildup on the air cap.

fers from

Select a Spray Tip and Air Cap

The

fluid output and pattern width depend on the size of the spray tip, the fluid viscosity sure. Use the

Charts

an appropriate spray tip and air cap for your applica tion.

NOTE:



, on pages 18 and 19, as a guide for selecting

Using a Fine Finish Spray T finish of certain urethanes, clearcoats, or light weight air-dry enamels. Refer to the

Spray T

ip Selection Chart

ip and Air Cap Selection

, and the fluid pres

ip may improve the

Fine Finish

on page 19.

Install a Spray Tip

WARNING

INJECTION

o reduce the risk of a fluid injection

injury

, follow the

dure

on page 7 before removing or

installing a spray tip.

Install a spray tip in the gun. The air cap and spray tip position determines the direction of the spray pattern.

Rotate the air cap (the spray tip rotates with it) as needed for the desired spray pattern direction. See Fig. 3.

Vertical

Spray Pattern

HAZARD

Pressure Relief Proce

Horizontal Spray Pattern



If you are applying a solid stream of fluid, such as mastics or sealants, refer to the

Spray T



ip Selection Chart

Solid Stream

on page 19.

Fig. 3

+ 16 hidden pages