Graco 311688L User Manual

Instructions/Parts List

TI2125A

Triton

3D150

311688L

Diaphragm Pump

Used to pump waterborne and solvent-based paints and catalysts. For professional use only.

Part No. 253704, Series B

3:1 Ratio Air-operated Double Diaphragm Pump, with BSPP Fittings

Part No. 253705, Series B

3:1 Ratio Air-operated Double Diaphragm Pump, with NPT Fittings

100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure

300 psi (2.1 MPa, 21 bar) Maximum Fluid Working Pressure

Important Safety Instructions

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

II 2 G

Table of Contents

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

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

General Information . . . . . . . . . . . . . . . . . . . . . . 5

Tightening Threaded Fasteners Before First Use 5

Mounting the Pump . . . . . . . . . . . . . . . . . . . . . . . 6

Air Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Fluid Suction Line . . . . . . . . . . . . . . . . . . . . . . . . 7

Fluid Outlet Line . . . . . . . . . . . . . . . . . . . . . . . . . 7

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Pressure Relief Procedure . . . . . . . . . . . . . . . . 10

Flushing the Pump Before First Use . . . . . . . . . 10

Starting and Adjusting the Pump . . . . . . . . . . . 10

Pump Shutdown . . . . . . . . . . . . . . . . . . . . . . . . 10

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Flushing and Storage . . . . . . . . . . . . . . . . . . . . 11

Tightening Threaded Connections . . . . . . . . . . 11

Preventive Maintenance Schedule . . . . . . . . . . 11

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Prepare the Pump for Repair . . . . . . . . . . . . . . 13

General Repair Notes . . . . . . . . . . . . . . . . . . . . 13

Fault Indications . . . . . . . . . . . . . . . . . . . . . . . . 13

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . 13

Replace the Diaphragms . . . . . . . . . . . . . . . . . 14

Helicoil Installation . . . . . . . . . . . . . . . . . . . . . . 15

Repair the Air Valve . . . . . . . . . . . . . . . . . . . . . 16

Repair the Shaft and Bearings . . . . . . . . . . . . . 18

Fluid Inlet and Outlet Adapters . . . . . . . . . . . . . 18

Replace the Ball Check Valves . . . . . . . . . . . . . 20

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Performance Chart . . . . . . . . . . . . . . . . . . . . . . . . 25

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 28

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 28

2 311688L

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

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

• This equipment is for professional use only.

• Read all instruction manuals, tags, and labels before operating the equipment.

• Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.

• Do not alter or modify this equipment. Use only genuine Graco parts and accessories.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• Do not exceed the maximum working pressure of the lowest rated system component. Refer to the

Technical Data on page 24 for the maximum working pressure of this equipment.

• Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Techni- cal Data section of all equipment manuals. Read the fluid and solvent manufacturer's warnings.

• Do not use hoses to pull equipment.

• Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 82°C (180°F) or below -40°C (-40°F).

• Wear hearing protection when operating this equipment.

• Comply with all applicable local, state, and national fire, electrical, and safety regulations.

PRESSURIZED EQUIPMENT HAZARD

Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin and cause serious injury.

• Do not point the gun at anyone or at any parts of the body.

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

• Follow the Pressure Relief Procedure on page 10 whenever you are instructed to relieve pressure; stop spraying; clean, check, or repair the equipment; and install or clean the spray nozzle.

• Tighten all fluid connections before operating the equipment.

• Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately. Permanently coupled hoses cannot be repaired; replace the entire hose.

311688L 3

Warnings

Warning

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury.

• Ground the equipment and the object being sprayed. Refer to Grounding on page 9.

• If there is any static sparking or you feel an electric shock while using this equipment, stop the equipment immediately. Do not use the equipment until you identify and correct the problem.

• Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being sprayed.

• Keep the work area free of debris, including solvent, rags, and gasoline.

• Eliminate all ignition sources such as pilot lights, cigarettes, and static arcs from plastic drop cloths. Do not plug in or unplug power cords or turn lights on or off in the spray area.

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed.

• Know the specific hazards of the fluid you are using.

• Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local, state and national guidelines.

• Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and solvent manufacturer.

• If a diaphragm fails, fluid is exhausted along with the air. When pumping hazardous fluids, place the pump in an appropriate container to catch the fluid if a diaphragm ruptures.

MOVING PARTS HAZARD

Moving parts, such as the diaphragm shaft, can pinch or amputate your fingers.

• Before servicing the equipment, follow the Pressure Relief Procedure on page 10 to prevent the equipment from starting unexpectedly.

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

4 311688L

Installation

General Information

• FIG. 2 is only a guide for installing system components and accessories. It is not an actual system design. Contact your Graco distributor for assistance in designing a system to suit your particular needs.

• Always use Genuine Graco Parts and Accessories, available from your Graco distributor. If you supply your own accessories, be sure they are adequately sized and pressure-rated for your system.

• Reference numbers and letters in parentheses refer to the reference numbers in the figures and the parts list on page 22.

Tightening Threaded Fasteners Before First Use

NOTE: Before using pump, loosen fluid cover bolts (38,

39) 1-2 turns and then retorque to 16 N•m (12 ft-lb).

See the Repair section for torque specifications.

• After unpacking the pump and before using it for the first time, check and retorque all diaphragm cover bolts (38, 39).

• After the first day of operation, retorque the fasteners again.

• As a general guideline, retorque fasteners every two months.

311688L 5

Installation

Floor Mount

Hexagonal screw (2 required)

Compressed air connection

Fluid Inlet

Cylinder Housing (54)

Fluid Outlet

Wall Mount

Wall Mount Bracket

TI2133A 2

TI2469A

Mounting the Pump

• For ease of operation and service, mount the pump so the air inlet, fluid inlet, and fluid outlet ports are easily accessible.

• Mount the pump in a well-ventilated area with sufficient clearance on all sides for operator access and servicing.

• The pump must be mounted horizontally as shown in FIG. 1. Be sure that the pump is level in all directions and that the cylinder housing (54) is positioned on the bottom. See FIG. 1.

• The pump can be floor mounted or mounted on a wall using mounting kit 246495.

• Be sure the mounting can support the weight of the pump, hoses, and accessories as well as the stress caused during operation. The pump has two mounting holes for 0.31 in. (8 mm) screws. See the Dimension drawing on page 26.

Wall mount using kit 246495:

1. Use the bracket (15C022) as a template to drill 2

0.38 (9.6 mm) diameter holes in the wall.

2. Loosely attach bracket (15C022) to the wall with anchors and screws (8 mm) long enough to prevent the bracket from vibrating during operation.

3. Remove bracket from the wall and fasten it to the pump using the 4 screws (116899) and 1 lock washer (100028) included in the kit.

4. The lock washer must be used in the unpainted hole to ensure proper grounding of the bracket.

5. Mount the bracket with the pump attached to the wall and tighten.

FIG. 1. Mounting the Pump

6 311688L

Installation

Air Line

1. Install the air line accessories as shown in FIG. 2. Be sure the air line supplying the accessories is grounded.

a. The fluid pressure can be controlled with either

an air regulator (F) to control the air into the pump, or with a fluid regulator (H) to control the fluid out of the pump.

b. Install a bleed-type master air valve (B) close to

the pump. This valve is required in your system to relieve air trapped between it and the pump when the valve is closed. Trapped air can cause the pump to cycle unexpectedly which could result in serious injury including splashing in the eyes or on the skin, or injury from moving parts. Be sure the bleed valve is easily accessible from the pump, and is located downstream from the air regulator.

c. Install a second air valve (E) upstream from all

air line accessories to isolate them during cleaning and repair.

d. Install an air line filter (D) to remove contami-

nates such as dirt, moisture, and oil from the compressed air supply.

2. The air valve does not require lubrication.

• For maximum suction lift (wet and dry) information,

see Technical Data on page 24.

• Use an agitator to prevent fluid from settling out. Part number 245081 Agitator Kit (accessory) is available.

Fluid Outlet Line

1. Use electrically conductive fluid hoses (P). See FIG.

2. Screw the fluid fitting into the pump outlet (N) snugly while supporting the outlet with a wrench. See Technical Data on page 24 to determine the fluid outlet size of your pump.

2. Install a fluid regulator (H) at the pump fluid outlet to control fluid pressure, if desired. See Air Line step 1a for an alternative method to control pressure.

3. Install a fluid drain valve (J) near the fluid outlet.

A fluid drain (J) valve is required in your system to relieve pressure in the hose if it is plugged. The drain valve reduces the risk of serious injury, including splashing in the eyes or on the skin, or contamination from hazardous fluids when relieving pressure. Install the valve close to the pump fluid outlet. To use the valve as a circulation valve, connect a tube (K) between the valve and pail.

3. Install a grounded, flexible air hose between the

accessories and the pump air inlet. See Technical Data on page 24 to determine the air inlet size of your pump. Use a minimum 1/2 in.(13 mm) ID air hose.

Fluid Suction Line

• See Technical Data on page 24 to determine the

fluid inlet size of your pump.

• Use conductive hoses (see FIG. 2). Screw the suction line into the pump inlet snugly while supporting the inlet with a wrench. Use a compatible liquid thread sealant on connections to prevent air from entering the fluid line.

311688L 7

Some systems may require installation of a pressure relief valve at the pump outlet to prevent overpressurization and rupture of the pump or hose.

Thermal expansion of fluid in the outlet line can cause overpressurization. This can occur when using long fluid lines exposed to sunlight or ambient heat, or when pumping from a cool to a warm area (for example, from an underground tank).

Overpressurization can also occur if the pump is being used to feed fluid to a piston pump and the intake valve of the piston pump does not close, causing fluid to back up in the outlet line.

NOTICE

Installation

Key:

A TRITON 3D150 Pump B Bleed-type master air

valve (required for pump) C Air supply line D Air line filter E Air line shutoff valve F Pump air regulator G Gun air regulator (used in

spray system only) H Fluid pressure regulator

(used in spray system

only) J Drain/circulation valve K Drain tube L Suction tube M Pump fluid inlet N Pump fluid outlet P Fluid hose (shown

connected to gun in spray

system) R Gun air hose (used in

spray system only) S Spray gun (used in spray

system only) T Pump air inlet U Agitator (used in spray

system only) W Ground wire

TI2127A

TI2373A

FIG. 2. Typical Installation

8 311688L

Installation

TI2126A

Grounding

Before operating the pump, ground the system as explained below. Read the warnings on page 4.

Ground all of this equipment:

• Pump: use a ground wire and clamp. See FIG. 3. Loosen the grounding screw (X). Insert one end of a

12 ga (1.5 mm2) minimum ground wire (Y) under the clamp and tighten the screw securely. Connect the other end of the wire to a true earth ground. For a ground wire and clamp, order Part No. 222011.

• Air and fluid hoses: Use only electrically conductive hoses.

• Air compressor: Follow manufacturer’s recommendations.

• All fluid pails used when flushing: Follow your local code. Use only conductive metal pails placed on a grounded surface. Do not place the pail on a nonconductive surface, such as paper or cardboard, which interrupts the grounding continuity.

• Fluid supply drum: Follow your local code.

FIG. 3. Grounding the Pump

311688L 9

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