Graco 236752, 236754, 249884 B User Manual

Instructions - Parts List

™

308391J

Power-Star

Used to pump high volumes of petroleum and synthetic based oils. For professional use only.

Model No. 236754, Series A

1:1 Ration Universal Pump and Reciprocator

Model No. 236752, Series A

Reciprocator Only

1500 psi (10 MPa, 103 bar) Maximum Hydraulic Input Pressure 1500 psi (10 MPa, 103 bar) Maximum Fluid Outlet Pressure

Important Safety Instructions

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

This pump is designed to be used only in pumping non-corrosive and non-abrasive oils and lubricants. Any other use of the system can cause unsafe operating conditions and result in components rupture, fire, or explosion which can cause serious injury, including fluid injection.

Contents

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

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

Pump Accessories . . . . . . . . . . . . . . . . . . . . . . . 5

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Hydraulic Power Supply . . . . . . . . . . . . . . . . . . . 6

Hydraulic Components . . . . . . . . . . . . . . . . . . . . 7

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

Pressure Relief Procedure . . . . . . . . . . . . . . . . . 8

Before Starting the Pump . . . . . . . . . . . . . . . . . . 8

To Start the Pump . . . . . . . . . . . . . . . . . . . . . . . . 8

Shutdown and Care . . . . . . . . . . . . . . . . . . . . . . 9

Emergency Stop Procedure . . . . . . . . . . . . . . . . 9

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

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Intake Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Displacement Pump . . . . . . . . . . . . . . . . . . . . . 14

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . 20

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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 symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be aware that flammable fumes can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well ventilated area.

• Eliminate all ignition sources, such as cigarettes and portable electric lamps.

• Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.

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

• Ground all equipment in the work area.

• Use only grounded hoses.

• Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment

until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

SKIN INJECTION HAZARD

High-pressure fluid from dispensing device, 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 dispensing device at anyone or at any part of the body.

• Do not put your hand over the fluid outlet.

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

• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or

servicing equipment.

• Tighten all fluid connections before operating the equipment.

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

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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 com-

ponent. 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 from distributor or retailer.

• Do not leave the work area while equipment is energized or under pressure.

• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

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

• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create safety hazards.

• Make sure all equipment is rated and approved for the environment in which you are using it.

• 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 MSDSs 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 chemically impermeable gloves when spraying, dispensing, or cleaning equipment.

MOVING PARTS HAZARD

Moving parts can pinch, cut 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 and disconnect all power sources.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is not limited to:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer

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Installation

Maximum Working Pressure of Accessories

To reduce the risk of serious injury including fluid injection and splashing in the eyes or on the skin, which may be caused by component ruptures, all accessories added to the reciprocator power supply side of the pump fluid outlet side must have at least a 1500 psi (10 MPa, 103 bar) maximum working pressure.

Pump Accessories

Suction Tube Kit: A suction tube kit is available for siphoning from 55 gallon containers.

Intake Tube: To install, apply PTFE tape to the female threads at the top of the tube (Q). Screw the tube tightly into the intake housing of the stubby pump.

Low-Level Cutoff Valve: To install, screw the low-level cutoff valve into the bottom of the pump intake tube or the suction tube. This valve closes the pump intake when the fluid level is low, causing the pump to stall to avoid running all day.

The equipment must be grounded to reduce the risk of static sparking and electric shock. Electric or static sparking can cause fumes to ignite or explode. Improper grounding can cause electric shock. Grounding provides an escape wire for the electric current.

Pump: Use a ground wire and clamp. Remove the ground screw (Z) and insert through the eye of the ring terminal at end of ground wire (Y). Fasten the ground screw back onto the pump and tighten securely. Connect the other end of the ground wire to a true earth ground. (F

IG. 1)

NOTICE

A pump outlet drain valve is required in the system. This valve helps relieve pressure in the displacement pump and hose when shutting down the system and in case of a clogged outlet hose. Install the valve hose close the pump outlet.

Pump Outlet Drain Valve: Install a drain valve (D) close to the pump fluid outlet assist in relieving fluid pressure in the pump, hose, and dispense valve when the pump is shut off.

Thermal Relief Kit: Install a Thermal Relief Kit (T) at the pump fluid outlet.

Grounding

FIG. 1

Hydraulic and fluid hoses: Use only electrically con-

ductive hoses.

Hydraulic power supply: Follow manufacturer’s recom-

mendations.

Any pails used when flushing: Use only metal, grounded pails when flushing. Make firm metal-to-metal contact between the metal part of the dispense valve and the pail. Use the lowest possible pressure.

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Installation

FIG. 2: Typical Installation

Key:

A Hydraulic Control (See manual 308395) B Porous Plug (weep tube optional) C Fluid Dispense Outlet D Drain Valve (required) E Hydraulic Return Line F Hydraulic Outlet, 1 1/4 npt G Return Line Shutoff Valve H Hydraulic Inlet, 3/4 npt J Hydraulic Supply Line Shutoff Valve K Pressure Gauge L Pressure Reducing Valve M Flow Control Valve N Hydraulic Supply Line (Use only Graco Hydraulic power

supply) P Dispensed Material Supply Suction Hose Kit R Ground Wire (required) S Wall Mounting Bracket (See manual 308394) T Thermal Relief Kit (required)

NOTE: The installation shown in FIG. 2 is only a guide. For assistance in designing a system to suit your needs. Contact your Graco representative.

Mount the pump to suit the type of installation planned.

Hydraulic Power Supply

To reduce the risk of damaging the hydraulic power supply, blow out all hydraulic lines with air, flush thoroughly with solvent, and then blow out with air again before connecting the lines to the motor.

Always plug the hydraulic inlets, outlets, and lines when disconnecting them to avoid introducing dirt and other contaminants to the system.

Carefully follow the manufacturers recommendations on reservoir and filter cleaning, and periodic changes of the hydraulic fluid.

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