Graco 24C728 B, 5900HD, 24C729 User Manual

Instructions/Parts

AIR DRIVEN

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Expanding Blade Mixer

Expanding blade bung-mounted agitator for maintaining suspension and even mixing in industrial paints and coatings. For professional use only.

Not approved for use in European explosive atmosphere locations.

Model 24C728, Series B

Low Viscosity, up to 1000 centipoise

Model 24C729, Series B

High Viscosity, up to 2000 centipoise

100 psi (0.7 MPa, 7 bar) Maximum Working Pressure

Important Safety Instructions

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

Contents

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . .10

Graco Standard Warranty . . . . . . . . . . . . . . . . .12

Graco Information . . . . . . . . . . . . . . . . . . . . . . .12

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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 symbol refers to procedure-specific risk. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable.

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.

• 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.

• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment and follow the Pressure Relief Procedure in this manual 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.

• 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.

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.

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.

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Warnings

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Installation

NOTE: Reference numbers and letters in parentheses in

the text refer to the callouts in the figures and in the parts drawing.

Grounding

The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit.

See F

IG. 1. Loosen the grounding screw (GS). Insert

one end of a 12 ga. minimum ground wire behind the grounding screw and tighten the screw securely. Connect ground clamp to a true earth ground. A ground wire and clamp, Part 238909, is available from Graco.

Air Line Accessories

Install the following accessories in the order shown in F

IG. 2, using adapters as necessary.

Bleed-type master air valve (A): to isolate the air line components for servicing.

Air filter (B): removes harmful dirt and moisture from the compressed air supply. Order part 106148 for 3/8 npt or 106149 for 1/2 npt.

Air regulator and gauge (C): to control air motor and agitator speed.

Air line lubricator (D): Downstream from the filter, install an air line lubricator for automatic air motor lubrication. Set the lubricator feed rate at 1 drop of oil per minute for high speed or continuous duty usage. Do not overfeed oil or exhaust air may become contaminated. To manually lubricate the air motor, see Lubricate the Air Motor, page 6. A 3/8 in. npt air line lubricator, Part 214847, is available from Graco.

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FIG. 1. Ground Screw

Air Requirements

To help prevent component rupture, do not exceed 100 psi (0.7 MPa, 7 bar) maximum air working pressure.

Typical air requirements for continuous use at 400 rpm and 100 psi (0.7 MPa, 7 bar) inlet pressure:

• low viscosity air motor -- 12 scfm (0.34 m

• high viscosity air motor -- 22 scfm (0.62 m

/min)

NOTICE

Not lubricating the air motor will cause air motor failure.

IG. 2. Typical Installation

Key:

A Bleed-type master air valve B Air filter C Air regulator and gauge D Air line lubricator E Agitator motor F Mix tank (reference only)

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