Graco 311882Y, 295616 Instructions manual

Instructions

311882Y

2:1 Ratio Transfer Pump

For use with polyurethane foam, polyurea, and similar non-flammable materials. For professional use only.

Not approved for use in European explosive atmosphere locations.

Model 295616 (55-gallon drum)

180 psi (1.2 MPa, 12 bar) Maximum Air Working Pressure 405 psi (2.7 MPa, 27 bar) Maximum Fluid Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual before using the equipment. Save these instructions.

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Contents

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

Important Isocyanate (ISO) Information . . . . . . . . . 5

Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 5

Material Self-Ignition . . . . . . . . . . . . . . . . . . . . . . 6

Keep Components A and B Separate . . . . . . . . . 6

Moisture Sensitivity of Isocyanates . . . . . . . . . . . 6

Foam Resins with 245 fa Blowing Agents . . . . . . 6

Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 6

Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Typical Installation, without Circulation . . . . . . . . 7

Typical Installation, with Circulation . . . . . . . . . . . 8

Typical Installation for Lubrication Applications . . 9

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

System Accessories. . . . . . . . . . . . . . . . . . . . . . 10

Air Line Accessories . . . . . . . . . . . . . . . . . . . . . 10

Fluid Line Accessories . . . . . . . . . . . . . . . . . . . . 10

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Grounding the System . . . . . . . . . . . . . . . . . . . . 12

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Pressure Relief Procedure . . . . . . . . . . . . . . . . . 13

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Daily Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Daily Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . 14

Repair the Air Motor . . . . . . . . . . . . . . . . . . . . . . . . 15

Repair the Pump Lower . . . . . . . . . . . . . . . . . . . . . 17

Reassemble the Air Motor and the Pump

Lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Parts - Model 295616 . . . . . . . . . . . . . . . . . . . . . . . 22

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Performance Chart . . . . . . . . . . . . . . . . . . . . . . . . . 26

Calculate Fluid Outlet Pressure

(black curves). . . . . . . . . . . . . . . . . . . . . . . . 26

Calculate Pump Air Consumption

(gray curves) . . . . . . . . . . . . . . . . . . . . . . . . 26

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Technical Specifications . . . . . . . . . . . . . . . . . . . . 29

California Proposition 65 . . . . . . . . . . . . . . . . . . . . 29

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 30

Graco Information. . . . . . . . . . . . . . . . . . . . . . . . . . 30

2 311882Y

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 Safety Data Sheets (SDSs) for handling instructions and to know the specific hazards of the fluids you are using, including the effects of long-term exposure.

• When spraying, servicing equipment, or when in the work area, always keep work area well-ventilated and always wear appropriate personal protective equipment. See Personal Protective Equipment warnings in this manual.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

PERSONAL PROTECTIVE EQUIPMENT

Always wear appropriate personal protective equipment and cover all skin when spraying, servicing equipment, or when in the work area. Protective equipment helps prevent serious injury, including long-term exposure; inhalation of toxic fumes, mists or vapors; allergic reaction; burns; eye injury and hearing loss. This protective equipment includes but is not limited to:

• A properly fitting respirator, which may include a supplied-air respirator, chemically impermeable gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local regulatory authority.

• Protective eyewear and hearing protection.

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 Specifications in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Specifications 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.

311882Y 3

Warnings

WARNING

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury.

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

• Tighten all fluid connections before operating the equipment.

• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

BURN HAZARD

Equipment surfaces and fluid that is heated can become very hot during operation. To avoid severe burns:

• Do not touch hot fluid or equipment.

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 311882Y

Important Isocyanate (ISO) Information

Isocyanates (ISO) are catalysts used in two component materials.

Isocyanate Conditions

Spraying or dispensing fluids that contain isocyanates creates potentially harmful mists, vapors, and atomized particulates.

• Read and understand the fluid manufacturer’s warnings and Safety Data Sheets (SDSs) to know specific hazards and precautions related to isocyanates.

• Use of isocyanates involves potentially hazardous procedures. Do not spray with this equipment unless you are trained, qualified, and have read and understood the information in this manual and in the fluid manufacturer’s application instructions and SDSs.

• Use of incorrectly maintained or mis-adjusted equipment may result in improperly cured material, which could cause off gassing and offensive odors. Equipment must be carefully maintained and adjusted according to instructions in the manual.

• To prevent inhalation of isocyanate mists, vapors and atomized particulates, everyone in the work area must wear appropriate respiratory protection. Always wear a properly fitting respirator, which may include a supplied-air respirator. Ventilate the work area according to instructions in the fluid manufacturer’s SDSs.

• Avoid all skin contact with isocyanates. Everyone in the work area must wear chemically impermeable gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local regulatory authority. Follow all fluid manufacturer recommendations, including those regarding handling of contaminated clothing. After spraying, wash hands and face before eating or drinking.

• Hazard from exposure to isocyanates continues after spraying. Anyone without appropriate personal protective equipment must stay out of the work area during application and after application for the time period specified by the fluid manufacturer. Generally this time period is at least 24 hours.

• Warn others who may enter work area of hazard from exposure to isocyanates. Follow the recommendations of the fluid manufacturer and local regulatory authority. Posting a placard such as the following outside the work area is recommended:

TOXIC FUMES

HAZARD

DO NOT ENTER DURING

SPRAY FOAM APPLICATION OR FOR ___ HOURS AFTER

APPLICATION IS COMPLETE

DO NOT ENTER UNTIL:

DATE: TIME:

311882Y 5

____________ ____________

Important Isocyanate (ISO) Information

Material Self-Ignition

Some materials may become self-igniting if applied too thick. Read material manufacturer’s warnings and Safety Data Sheets (SDSs).

Keep Components A and B Separate

Cross-contamination can result in cured material in fluid lines which could cause serious injury or damage equipment. To prevent cross-contamination:

• Never interchange component A and component B wetted parts.

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

NOTE: The amount of film formation and rate of crystallization varies depending on the blend of ISO, the humidity, and the temperature.

Foam Resins with 245 fa Blowing Agents

Some 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

NOTICE

Changing the material types used in your equipment requires special attention to avoid equipment damage and downtime.

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

• Always clean the fluid inlet strainers after flushing.

Moisture Sensitivity of Isocyanates

Exposure to moisture (such as humidity) will cause ISO to partially cure, forming small, hard, abrasive crystal that become suspended in the fluid. Eventually a film will form on the surface and the ISO will begin to gel, increasing in viscosity.

NOTICE

Partially cured ISO will reduce performance and the life of all wetted parts.

• 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 pump wet cup or reservoir (if installed) filled with appropriate lubricant. The lubricant creates a barrier between the ISO and the atmosphere.

• Use only moisture-proof hoses compatible with ISO.

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

• Always lubricate threaded parts with an appropriate lubricant when reassembling.

• Check with your material manufacturer for chemical compatibility.

• When changing between epoxies and urethanes or polyureas, disassemble and clean all fluid components and change hoses. Epoxies often have amines on the B (hardener) side. Polyureas often have amines on the B (resin) side.

6 311882Y

Typical Installation

Typical Installation, without Circulation

Typical Installation

FIG. 1: Typical Installation, without Circulation

Key:

A Reactor Proportioner B Heated Hose C Fluid Temperature Sensor (FTS) D Heated Whip Hose E Fusion Spray Gun F Proportioner and Gun Air Supply Hose G Feed Pump Air Supply Lines (3/8 in. (76 mm) ID min.

ti11572a

* Shown exposed for clarity. Wrap with tape during operation.

H Waste Containers J Fluid Supply Lines (217382) K Feed Pumps L Agitator M Desiccant Dryer N Bleed Lines/Over Pressure Relief P Gun Fluid Manifold

311882Y 7

Typical Installation

Typical Installation, with Circulation

ti11571a

* Shown exposed for clarity. Wrap with tape during operation.

FIG. 2: Typical Installation, with Circulation

Key:

A Reactor Proportioner B Heated Hose C Fluid Temperature Sensor (FTS) D Heated Whip Hose E Fusion Spray Gun F Proportioner and Gun Air Supply Hose

8 311882Y

G Feed Pump Air Supply Lines (3/8 in. (76 mm) ID min) J Fluid Supply Lines K Feed Pumps L Agitator M Desiccant Dryer N Recirculation/Over Pressure Relief Return Hoses P Gun Fluid Manifold

Typical Installation for Lubrication Applications

AA AB

Typical Installation

01349

FIG. 3: Typical Installation for Lubrication Applications

Key:

AA Pump Air Regulator AB Air Line Lubricator AC Air Line Filter AD Bleed-Type Master Air Valve (required, for pump) AE Fluid Drain Valve (required) AF Bung Adapter

311882Y 9

AG Grounded Air Hose AH Grounded Fluid Hose AJ Pump Fluid Inlet AK 1/4 npt(f) Pump Air Inlet AL 3/4 npt(f) Pump Fluid Outlet

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