Graco 312476B User Manual

Instructions

Pole Gun with CleanShot™ Shut-Off Valve and Contractort In-line Valve

312476B

- For the application of architectural paints and coatings -

3600 psi (248 bar, 24.8 MPa) Maximum Working Pressure

Important Safety Instructions

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

Model 289386, Series A (North America)

With 3--ft (0.9 m) extension (244163)

WARNING: HIGH PRESSURE. Keep Clear of Nozzle.

Read these instructions carefully.

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

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Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.

The wallet-sized warning card provided with this pole gun should be kept with the operator at all times. The card contains important treatment information should a fluid injection injury occur. Additional cards are available at no charge from Graco Inc.

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

SKIN INJECTION HAZARD

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

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

surgical treatment.

D Do not point the spray tip at anyone or any part of the body.

D Do not put hand or fingers over the spray tip, and 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 in-line valve when spraying.

D Be sure the trigger safety lever operates before operating the in-line valve.

D Lock the trigger safety lever when you stop spraying.

D Follow the Pressure Relief Procedure on page 4 when you are instructed to relieve pressure;

stop spraying; check, clean, or service any system equipment; or install or change spray tips.

D Tighten all fluid connections before each use.

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

nently coupled hoses cannot be repaired.

D Handle and route hoses and tubes carefully. Keep hoses and tubes away from moving parts and

hot surfaces. Do not use the hoses to pull equipment. Do not expose Graco hoses to temperatures above 150_F(65_C) or below --40_F(--40_C).

TOXIC FLUID HAZARD

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

D Know the specific hazards of the fluid you are using.

D Store hazardous fluid in an approved container. Dispose hazardous fluid according to all local,

state and national guidelines.

D Dress appropriately for your application. Wear protective eyewear, noise protection for the ears, a

personal respirator, gloves, and clothing.

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RECOIL HAZARD

Due to the high pressure fluid emitted, a strong recoil action may occur when you trigger the pole gun. If you are unprepared, your hand could be forced back toward your body or you could lose your balance and fall, resulting in serious injury.

INSTRUCTIONS

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 Electrical Grounding on page 5.

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

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

D This equipment is for professional use only.

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

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

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 equip-

ment has a 3600 psi (25 MPa, 248 bar) maximum working pressure.

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

expose Graco hoses to temperatures above 150_F(65_C) or below --40_F(--40_C).

D Do not use the hoses to pull the equipment.

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

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

D Fluid hoses must have spring guards on both ends to protect them from rupture caused by kinks or

bends near the couplings.

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

D Wear hearing protection when operating this equipment.

HAZARD OF USING FLUIDS CONTAINING HALOGENATED HYDROCARBONS

Never use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents in this equipment. Such use could result in a serious chemical reaction, with the possibility of explosion, which could cause death, serious injury and/or substantial property damage.

Consult your fluid suppliers to ensure that the fluids being used are compatible with aluminum and zinc parts.

312476 3

Installation

1. Connect grounded fluid hose to the Contractor In--line valve.

2. Connect 3--ft extension to in--line valve. Use a wrench to tighten.

3. Connect the CleanShot Shut--off Valve. Use a wrench to tighten.

NOTE: Be sure seals (33 and 34) are in place in the in--line valve and shut--off valve before connecting the extension. Page 13.

4. Without the spray tip installed, start sprayer; turn the knob on the CleanShot Shut--Off Valve counter--clockwise to the flush position; flush and prime according to sprayer instructions.

NOTE: TheContractorIn--linevalvecanbeusedas an airless spray gun by attaching a HandTitet Guard and RAC

IV Switch Tip.

Relieve the pressure following the Pressure

Relief Procedure below.

Pressure Relief Procedure

WARNING

INJECTION HAZARD

To reduce the risk of serious injury, including fluid injection, splashing in the

eyes or on skin, or injury from moving parts, always follow this procedure when you stop spraying; check or service any part of spray system; or install, clean, or change the spray tip.

1. Put in-line valve trigger safety lever in SAFETY ON position. Fig. 1.

2. Shut off power supply to pump. Open all air bleed valves in system.

3. Put in-line valve trigger safety lever in SAFETY OFF position. Fig. 1.

4. Rotate the spray valve knob counter--clockwise to the out/flush position. Fig. 2.

5. Hold metal part of pole gun firmly to side of groun- ded metal waste container. Trigger in-line valve to relieve pressure.

6. Put in-line valve trigger safety lever in SAFETY ON position. Fig. 1.

7. Open pump drain valve to help relieve fluid pressure in pump, hose, and pole gun. Triggering inline valve to relieve pressure may not be sufficient. Have container ready to catch drainage.

8. Leave 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, VERY SLOWLY

loosen the tip guard retaining nut (Fig. 3) or hose end coupling and relieve pressure gradually , then loosen completely. Then clear tip or hose obstruction.

9. Install spray tip.

Required Accessories

WARNING

INJECTION HAZARD

Your spray system must have a bleedtype master air valve and a fluid drain

valve. They 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 pole gun.

D The bleed-type master air valve (air-powered

pumps only) relieves air trapped between the valve and 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 f luid pres-

sure in the displacement pump, hose and pole gun. Triggering the in-line valve to relieve pressure may not be sufficient.

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Installation

Electrical Grounding

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding could cause static sparking, which could cause a fire or explosion. To reduce the risk of property damage or serious injury, follow the grounding instructions below.

D Read and follow the warnings in Fire and

Explosion Hazard on page 3.

D Provide electrical grounding continuity throughout

the entire spray system as instructed below.

D Have a trained and qualified person perform all

electrical wiring.

D Comply with all applicable local, state, and

national fire, electrical, and other regulations.

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

D Ground the pump or sprayer as instructed in its

separate manual.

D Ground the air compressor or hydraulic power

supply according to the local electrical code and

the manufacturer’s recommendations.

D Use electrically conductive fluid hoses with a

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

D Ground the pole gun by connecting it to a properly

grounded fluid hose and pump or sprayer.

D Ground the fluid supply container, object being

sprayed, all solvent pails used when flushing

according to the local electrical 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 flush-

ing or relieving pressure, always hold a metal

part of the pole gun firmly to the side of a grounded metal pail, then trigger the in-line valve.

312476 5

Operation

WARNING

INJECTION HAZARD

To reduce the risk of a fluid injection injury, do not operate the pole gun with the tip guard or trigger guard removed.

In-Line Gun Trigger Safety Lever

For SAFETY ON position, rotate trigger safety lever so it is in line with trigger. For SAFETY OFF position, flip safety lever so it is 90_ to trigger. Fig. 1.

NOTE: In the SAFETY ON position the lever sits in a detent which holds it in place.

SAFETY ON SAFETY OFF

Fig. 1

Using the CleanShot Shut--Off Valve

The CleanShot Shut--Off Valve provides two settings: SPRAY and FLUSH. The valve is factory set to the SPRAY position for spraying at pressures above 700 psi (4.8 MPa, 48 bar). Rotate the valve knob counter-clockwise to the FLUSH position for flushing, cleaning, priming and relieving pressure. The FLUSH position is also used for low pressure spraying applications below 1000 psi (6.9 MPa, 69 bar). Fig. 2.

Startup

1. Start pump. Adjust fluid pressure so spray is completely atomized. Always use lowest pressure that gets desired results. Higher pressure may not improve spray pattern and causes premature tip and pump wear.

NOTE: The spray tip orifice size and spray angle determine the coverage and size of the pattern. When more coverage is needed, use a larger spray tip rather than increasing the fluid pressure.

If adjusting the pressure does not give a good spray

3. Use full-open, full-close trigger action. Hold tip at a right angle to the work surface, about 14 inches (350 mm) away. Do not swing pole gun in arcs. Practice to find the best length and speed of stroke.

pattern, try another size tip.

Relieve the pressure

before you change the spray tip.

Fig. 2

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