Graco 309962H User Manual
Instructions–Parts List
120 Volt
309962H
Hot Melt Dispensing Gun
Used for manual dispensing of non flammable hot melt sealant
and adhesive materials. For professional use only.
Not for use in explosive atmospheres.
Model C34005 Bottom Feed
Model C34007 Bottom Feed with Trigger Switch
Model C50018 Top Feed
3500 psi (24.1 MPa, 241 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
EN
TI1629A
ti13864
Table of Contents
Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Warranty 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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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.
WARNING
SKIN INJECTION HAZARD
Spray from the gun, 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 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.
D Do not point the gun at anyone or at any part of the body.
D Do not put hand or fingers over the gun nozzle.
D Do not stop or deflect fluid leaks with your hand, body, glove, or rag.
D Be sure the gun trigger safety operates before dispensing.
D Lock the gun trigger safety when you stop dispensing.
D If the nozzle clogs while dispensing, fully release the trigger immediately
D Follow the Pressure Relief Procedure on page 7 whenever you: are instructed to relieve pres-
sure; stop dispensing; clean, check, or service the equipment; and install or clean the nozzle.
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.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
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.
HOT SURFACE AND FLUID HAZARD
Heated fluid can cause severe burns and can cause equipment surfaces to become very hot.
D Wear protective gloves and clothing when operating this equipment in a heated system.
D Do not touch the metal heat sink when the surface is hot.
D Allow the equipment to cool thoroughly before servicing.
Some heated systems are designed to dispense Polyurethane (PUR) heated materials. PUR systems
are supplied with ventilation hoods, and require proper ventilation and specially designed system
components.
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WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury.
D Do not use this equipment in a hazardous area, as defined in Article 500 of the National Electrical
Code (USA).
D Ground the equipment and the object. See Ground the System on page 6.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being
dispensed.
D Extinguish all the open flames or pilot lights in the dispense area.
D Keep the dispense area free of debris, including solvent, rags, and gasoline.
D Do not turn on or off any light switch in the dispense area while operating or if fumes are present.
D Do not smoke in the dispense area.
D Do not operate a gasoline engine in the dispense area.
D If there is any static sparking while using the equipment, stop dispensing immediately. Identify
and correct the problem.
D Keep a fire extinguisher in the work area.
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
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. See the
front cover or the Technical Data for the maximum working pressure of your gun model.
D Route the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces.
D Do not kink or overbend hoses or use the hoses to pull the equipment.
D Use only Graco approved hoses. Do not remove hose spring guards, which help protect the hose
from rupture caused by kinks or bends near the couplings.
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.
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D Do not use 1,1, 1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents with guns. Such use could result in a serious chemical reaction with
the gun’s aluminum parts, with the possibility of an explosion.
D Comply with all applicable local, state and national fire, electrical and other safety regulations.
WARNING
ELECTRIC SHOCK HAZARD
To reduce the risk of electric shock
D Keep display panels fastened during operation
D Never cut or puncture a hose cover.
D Disconnect power source before servicing
D Install according to local electric code.
D Ground all equipment.
D Connect to grounded outlet. Do not expose to rain. Store indoors.
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Installation
Grounding the System
WARNING
FIRE AND EXPLOSION HAZARD
To reduce the risk of a fire, explosion,
and serious injury, proper electrical
grounding of every part of your system is
essential. Read the warning section,
FIRE AND EXPLOSION HAZARD, on
page 4 and follow the grounding
instructions below.
The following grounding instructions are minimum
requirements for a basic dispensing system. Your
system may include other equipment or objects which
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.
1. Fluid hoses: use only grounded fluid hoses with a
maximum of 25 feet (7.5 m) combined hose length
to ensure grounding continuity. Check the electrical
resistance of your fluid hoses at least once a
week. If your hose does not have a tag on it which
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.
2. 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.
3. Fluid supply container: ground according to the
local code.
4. Flammable liquids in the dispense area: must
be kept in approved, grounded containers. Do not
store more than the quantity needed for one shift.
5. 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.
6. To maintain grounding continuity when flush-
ing or relieving pressure: hold a metal part of
the gun firmly to the side of a grounded metal pail,
then trigger the gun.
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