Haier 311209J User Manual

Instructions - Parts

Hot Melt Dispense Guns

For dispensing non-flammable hot melt thermoplastic sealants and adhesives.

3500 psi (24.1 MPa, 241 bar) Maximum Working Pressure

See page 2 for model information.

Important Safety Instructions

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

311209J

Bottom feed model

TI7700b

Top feed model

TI7702b

Models

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

Connect Heated Hose . . . . . . . . . . . . . . . . . . . . . 5

Connect Electrical Cable . . . . . . . . . . . . . . . . . . . 5

Ground the System . . . . . . . . . . . . . . . . . . . . . . . 6

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 7

Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Heatup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Dispensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Models

Model 249514 Bottom Feed

Model 249512 Bottom Feed with Trigger Switch

Model 249515 Top Feed

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Install New Heater Cartridge(s), RTD Sensor, or

Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Inspection Frequency . . . . . . . . . . . . . . . . . . . . 12

Adjust Needle Assembly . . . . . . . . . . . . . . . . . . 12

Service Valve Stem and Seal . . . . . . . . . . . . . . 12

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 22

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 22

Model 249513 Top Feed with Trigger Switch

Model 297273 Top Feed with Swirl

Model 297274 Bottom Feed with Swirl

2 311209J

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable.

WARNING

BURN HAZARD

Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate 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, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

ELECTRIC SHOCK HAZARD

Improper grounding, setup, or usage of the system can cause electric shock.

• Turn off and disconnect power cord before servicing equipment.

• Use only grounded electrical outlets.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on sprayer and extension cords.

• Do not expose to rain. Store indoors.

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 gun at anyone or at any part of the body.

• Do not put your hand over the spray tip.

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

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,

checking, or servicing equipment.

311209J 3

Warnings

WARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint 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, portable electric lamps, and plastic drop cloths (potential static arc).

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

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

• Ground all equipment in the work area. See Grounding instructions.

• Use only grounded hoses.

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

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• 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. For complete information about your material, request MSDS forms from distributor or retailer.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.

• Do not alter or modify equipment.

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

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

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

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 MSDS’s 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.

MOVING PARTS HAZARD

Moving parts can pinch or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.

4 311209J

Installation

Install gun as follows:

• connect material hose

• connect the electrical cable

• make sure the gun is grounded

Connect Heated Hose

1. Screw adapter onto gun swivel (A) and tighten securely.

Part No. Adapter Hose Size

120264 -8 JIC x -10 JIC -8

-- Not required -10 120265 -10 JIC x -12 JIC -12

2. Securely connect hose to gun swivel (A).

Connect Electrical Cable

1. Wrap hose cable around hose one time. Connect electrical cable from hose to gun cable; engage metal clip on top of connector.

FIG. 3: Connect Electrical Cable, Step 1

2. Place flat side of cable connection against hose, making sure metal clip faces away from hose. This will prevent damage to hose from clip rubbing against it.

TI8057b

IG. 1: Hose Gun Swivel

3. Wrap connection with insulating cuff (B) (119889).

TI8056b

IG. 2: Insulating Cuff

IG. 4: Connect Electrical Cable, Step 2

3. Fasten Velcro insulation wrap (198422) snugly around hose. Secure wrap with two Velcro straps (198442) on ends of wrap.

IG. 5: Connect Electrical Cable, Step 3

311209J 5

Installation

Ground the System

The following grounding instructions are minimum requirements for a basic dispensing 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.

• Fluid hoses: use only grounded fluid hoses with a

maximum of 25 feet (7.5 m) combined hose length to ensure grounding continuity. Check electrical resistance of your fluid hoses at least once a week. If your hose does not have a tag on it that specifies the maximum electrical resistance, contact the hose supplier or manufacturer for the maximum resistance limits. If the hose resistance exceeds the recommended limits, replace it immediately.

• Gun: the gun is grounded by connecting it to the

properly grounded fluid hose and by a ground wire in the cable. Check ground continuity between the gun body and the heat control ground lug.

• Fluid supply container: ground according to the

local code.

• Flammable liquids in the dispense area: must be

kept in approved, grounded containers. Do not store more than the quantity needed for one shift.

• All solvent pails used when flushing: ground

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 cardboard, which interrupts the grounding continuity.

To maintain grounding continuity when flushing or relieving pressure: hold a metal part of the gun firmly to the side of a grounded metal pail, then trigger the gun. To reduce the risk of static sparking, ground the pump, object being dispensed to, and all other spraying/dispensing equipment used or located in the spraying/dispensing area. Check your local electrical code for detailed grounding instructions for your area and type of equipment.

6 311209J

Pressure Relief Procedure

1. Fully release gun trigger and engage gun trigger lock. See F

2. Shut off fluid supply pump.

3. Hold a metal part of gun firmly to side of a grounded metal waste container. Disengage gun trigger lock. See F

4. Fully release gun trigger and engage gun trigger lock. See F

IG. 6.

IG. 7. Trigger gun to relieve fluid pressure.

IG. 6.

Trigger Lock

Always engage trigger lock when you stop spraying to prevent gun from being triggered accidentally by hand or if dropped or bumped.

To engage trigger lock, release trigger and rotate lock downward. See F

Do not try to force trigger valve open with trigger lock engaged. This could result in component failure.

Trigger Lock

Engaged

IG. 6: Trigger Lock Engaged

IG. 6.

TI8049

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

6. Leave drain valve open until you are ready to dispense again.

7. If you think the gun nozzle or fluid hose is completely clogged or that pressure has not been fully relieved after following the previous steps, very slowly loosen hose end coupling and relieve pressure gradually, then loosen coupling completely. Clear nozzle or hose obstruction

To disengage trigger lock, rotate it upward. See F

Trigger Lock Disengaged

FIG. 7: Trigger Lock Disengaged

IG. 7.

TI8050

311209J 7

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