Graco 306796H User Manual

Instructions – Parts List

Parts

Airless Spray Gun

Model 206408, Series H

3000 psi (21.0 MPa, 210 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

306796H

7414A

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

Table of Contents

Symbols

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

Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Information 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARNING

SKIN INJECTION HAZARD

Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause a serious injury.

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

cal treatment.

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 corresponding instructions.

D Do not point the dispensing valve at anyone or at any part of the body.

D Do not put hand or fingers over the spray tip.

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

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

D Always have the tip guard and the trigger guard on the gun when spraying.

D Be sure the gun trigger safety operates before spraying.

D Lock the gun/valve trigger safety when you stop spraying.

D Follow the Pressure Relief Procedure on page 6 whenever you: are instructed to relieve pres-

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

D Tighten all the fluid connections before operating the equipment.

D Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.

Permanently coupled hoses cannot be repaired; replace the entire hose.

TOXIC FLUID HAZARD

Hazardous fluids or toxic fumes can cause a serious injury or death if splashed in the eyes or on the skin, swallowed, or inhaled.

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

D Store hazardous fluid in an approved container. Dispose of the hazardous fluid according to all

local, state, and national guidelines.

D Wear appropriate protective clothing, gloves, eyewear, and respirator.

2 306796

Warnings are continued on the next page.

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in fire or explosion and serious injury.

D Ground the equipment and the object being sprayed. See Grounding on page 4.

D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being

sprayed.

D Extinguish all the open flames or pilot lights in the spray area.

D Electrically disconnect all the equipment in the spray area.

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

D Do not turn on or off any light switch in the spray area while operating or if fumes are present.

D Do not smoke in the spray area.

D Do not operate a gasoline engine in the spray area.

D If there is any static sparking while using the equipment, stop spraying immediately. Identify and

correct the problem.

EQUIPMENT MISUSE HAZARD

INSTRUCTIONS

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

D This equipment is for professional use only.

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

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

distributor.

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

D Check the equipment daily. Repair or replace worn or damaged parts immediately.

D Do not exceed the maximum working pressure of the lowest rated system component. This spray

gun has a 3000 psi (21.0 MPa, 210 bar) maximum working pressure.

D Use fluids that are compatible with the equipment wetted parts. See the Technical Data section of

all the equipment manuals. Read the fluid manufacturer’s warnings.

D Route the hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not

expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).

D Do not use the hoses to pull equipment.

D Wear hearing protection when operating this equipment.

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

3306796

Grounding

Installation

WARNING

FIRE AND EXPLOSION HAZARD

Before operating, ground the system as explained below. Also read the section FIRE AND EXPLOSION HAZARD on page 3.

D Fluid hoses: Use only electrically conductive hoses

with a maximum of 500 feet (150 m) combined hose length to ensure grounding continuity.

D Spray gun: Obtain grounding through connection to

a properly grounded fluid hose and sprayer or pump.

To reduce the risk of static sparking, ground all the dispensing equipment used or located in the work area. Check you local electrical code for detailed grounding instructions for your are and type of equipment. Be sure to ground all of this equipment. D Pump or sprayer: If using an electric sprayer, plug

the power supply cord or extension cord, each equipped with an undamaged three-prong plug, into a properly grounded outlet. Do not use an adapter. All extension cords must have three wires and be rated for 15 amps. If using another type of sprayer or pump, ground it by connecting a grounding wire (12 ga minimum) from the pump or sprayer’s grounding lug to a true earth ground.

D Air compressor or hydraulic power supply: Follow

the local code.

D Supply container: Follow the local code.

D Object being sprayed: Follow the local code.

D All solvent pails used when flushing: Follow the

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

D 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.

4 306796

Installation

NOTE: Numbers and letters in parentheses in the text

correspond to the reference numbers and letters in the text and drawings.

WARNING

Be sure your system has a bleed-type master air valve (pneumatic pumps only) and a fluid drain valve. These two accessories help reduce the risk of serious injury, including fluid injection, splashing in the eyes or on the skin, or injury from moving parts, if you are adjusting or repairing the pump or gun. D 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.

D The fluid drain valve assists in relieving fluid

pressure in the displacement pump, hose, and gun; triggering the gun to relieve pressure may not be sufficient.

1. Connect a grounded fluid hose to the gun inlet.

2. With no tip installed, start the pump/sprayer. Flush it according to the instructions supplied with it. Prime the system with the fluid you are using.

3. Relieve the pressure.

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 6.

4. With the gun safety latch engaged, unscrew the retaining nut (B) of the tip/guard assembly (26, 27), and install the gasket (25) in the retaining nut. Screw the tip/guard assembly firmly onto the gun. Tighten with a wrench. See Fig. 1.

NOTE: Failure to install the tip gasket (25) will result in leaking.

5. Strain the fluid you are spraying if it contains particles that could clog the spray tip.

Fig. 1

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