Graco GCP3R1, GCP3RA, GCP3R0, GCP3R3, GCP3R4 User Manual

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USER MANUAL

Probler P2 Elite

Dispense Gun

For use with non-flammable foam and polyurea.

Not for use in explosive atmospheres.

90-110 psi (0.62-0.76 MPa, 6.2-7.6 bar) Air Inlet Pressure Range 3200 psi (22 MPa, 220 bar) Maximum Static Fluid Pressure

Important Safety Instructions

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

Models:

GCP3RA

GCP3R0

GCP3R1

GCP3R2

GCP3R3

GCP3R4

GCP3R5

US Patent 6,796,461

7,527,172

r_gcp3ra_313266_1_1e

Table Of Contents
Section 1 Installation
Warnings ............................................................................................................................................................	3
Introduction ........................................................................................................................................................	7
Standard Equipment ..........................................................................................................................................	8
Translations .......................................................................................................................................................	8
Equipment Assembly .........................................................................................................................................	9
Section 2 Operation
Start-up Instructions ...........................................................................................................................................	11
Section 3 General Information
Assembly Drawings .............................................................................................................................................	13
Maintenance ........................................................................................................................................................	16
Options ................................................................................................................................................................	21
Section 4 Warranty and Reference Information
Limited Time Warranty ........................................................................................................................................	25
Technical Assistance ...........................................................................................................................................	26
For Your Reference .............................................................................................................................................	27

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

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.

•Always wear impervious gloves when spraying or cleaning equipment.

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

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.

•Close material shutoff valves and then shut off or disconnect air supply when not spraying.

•Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning, checking, or servicing equipment.

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.

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.

•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.

Warnings

WARNING

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.

PRESSURIZED ALUMINUM PARTS HAZARD

Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical reaction and equipment rupture, and result in death, serious injury, and property damage.

Warnings

Isocyanate Hazard

Spraying materials containing isocyanates creates potentially harmful mists, vapors, and atomized particulates.

Read material manufacturer’s warnings and material MSDS to know specific hazards and precautions related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and atomized particulates by providing sufficient ventilation in the work area. If sufficient ventilation is not available, a supplied-air respirator is required for everyone in the work area.

To prevent contact with isocyanates, appropriate personal protective equipment, including chemically impermeable gloves, boots, aprons, and goggles, is also required for everyone in the work area.

Moisture Sensitivity of

Isocyanates

Isocyanates (ISO) are catalysts used in two component foam and polyurea coatings. ISO will react with moisture (such as humidity) to form small, hard, abrasive crystals, which become suspended in the fluid. Eventually a film will form on the surface and the ISO will begin to gel, increasing in viscosity. If used, this partially cured ISO will reduce performance and the life of all wetted parts.

The amount of film formation and rate of crystal-

lization varies depending on the blend of ISO, the humidity, and the temperature.

To prevent exposing ISO to moisture:

•Always use a sealed container with a desiccant dryer in the vent, or a nitrogen atmosphere. Never store ISO in an open container.

•Keep the ISO lube pump reservoir filled with Graco

Throat Seal Liquid (TSL), Part 206995. The lubricant creates a barrier between the ISO and the atmosphere.

•Use moisture-proof hoses specifically designed for

ISO, such as those supplied with your system.

•Never use reclaimed solvents, which may contain moisture. Always keep solvent containers closed when not in use.

•Never use solvent on one side if it has been contaminated from the other side.

•Always park pumps when you shutdown.

•Always lubricate threaded parts with Part 217374 ISO pump oil or grease when reassembling.

Warnings

Material Self-ignition

Some materials may become self-igniting if applied to thickly. Read material manufacturer’s warnings and material MSDS.

Keep Components A and B

Separate

CAUTION

To prevent cross-contamination of the equipment’s wetted parts, never interchange component A (isocyanate) and component B (resin) parts. The gun is shipped with the A side on the left. The fluid manifold, fluid housing, side seal assembly, check valve cartridge, and mix chamber are marked on the A side.

Foam Resins with 245 fa Blowing Agents

New foam blowing agents will froth at temperatures above 90°F (33 °C) when not under pressure, especially if agitated. To reduce frothing, minimize preheating in a circulation system.

Changing Materials

•When changing materials, flush the equipment multiple times to ensure it is thoroughly clean.

•Always clean the fluid inlet strainers after flushing.

•Check with your material manufacturer for chemical compatibility.

•Most materials use ISO on the A side, but some use ISO on the B side.

•Epoxies often have amines on the B (hardener) side. Polyureas often have amines on the B (resin) side.

Section 1 - Installation: Introduction

Introduction

Before operating, maintaining or servicing any GlasCraft system, read and understand all of the technical and safety literature provided with GlasCraft products. If you do not have the proper or related manuals and safety literature for your GlasCraft system, contact your GlasCraft distributor.

In this GlasCraft technical and safety publication, the following advisories will be provided where appropriate:

Information about the procedure in progress.

WARNING

Indicates a hazardous situation that can result in death or serious injury.

The information in this document is intended only to indicate the components and their normal working relationship typical use. Each assembly should be directed by a GlasCraft distributor or made from the GlasCraft Assembly instructions provided.

This manual provides information for the assembly, operation, maintenance and service of this GlasCraft product as used in a typical configuration. While it lists standard specifications and procedures, some deviations may be found.

In order to provide our users with the most up-to-date technology possible, we are constantly seeking to improve products. If a technological change occurs after a product is on the market, we will implement that technology in future production and, if practical, make it available to current users as a retrofit, update or supplement. If you find a discrepancy between your unit and the available documentation, contact your GlasCraft distributor to resolve the difference.

Careful study and continued use of this manual will provide a better understanding of the equipment and process, resulting in more efficient operation, longer trouble-free service and faster, easier troubleshooting.

Section 1 - Installation: Standard Equipment

Standard Equipment

Part Description

Number

GCP2RX	Probler P2 Dispense Gun
313266	User Manual

Translations

Manual No.	Langauge
3A0474	Spanish
3A0475	French

Section 1 - Installation: Equipment Assembly

How The Gun Works

Piston Lock

The trigger actuates a small valve in the gun handle that controls the flow of air into the piston assembly. When the trigger is pulled, air flows through the valve to the front of the piston. Air pressure forces the piston

towards the rear of the gun, simultaneously closing off the purge air and moving the mixing chamber to a position where the mixing chamber orifices are aligned with the orifices in both, the side block seal and check valve assemblies.

The proper alignment of the orifices is determined by the setting of the adjustment nut, located on the piston lock assembly.. This adjustment nut determines the length of travel of the air piston and has been preset at the factory and should not require adjustment. (SEE MAINTENANCE SECTION)

The two fluids (isocyanate and polyol) then flow through the material shut-off valves, seal, and check valve assemblies and into the mixing chamber. The two fluids impinge against one another and exit the mixing chamber in a swirling, conical spray pattern.

When the trigger is released, the mixing chamber returns to its original position and purge air flows into the mixing chamber housing. The front tip o-ring keeps air purge inside the gun head, which forces all of the air through the orifices in the mixing chamber creating a complete, total and constant purge.

This purge air continues to flow through the mixing chamber until the air valve has shut-off all air to the gun; or until the trigger is pulled again.

Engage piston lock whenever you stop spraying, to avoid accidental triggering.

Always use piston lock in conjunction with fluid ball valves to avoid accidental triggering.

WARNING

Read warnings, page 3.

To engage Piston lock: push knob in and turn clockwise.

If engaged, gun will not actuate.

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To disengage piston lock: push knob in and turn counterclockwise until it pops out. There will be a gap between knob and gun body.

r_257826_313266_1_1b

See page 19 for piston lock adjustment or installation.

Loss of Air Pressure

In event of loss of air pressure, gun will continue to spray. To shut off gun, do one of the following:

•Push in piston lock, see Engage piston lock.

•Close ball valves A and B.

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