Graco 25P031 Bedienungsanleitung

3A6844B

Instructions

Stainless Steel 10:1 Pump

For use with EcoQuip 2™vapor abrasive blast equipment. Only use with water or water

with additives to inhibit corrosion or mold. For professional use only.

Model 25P031

1100 psi (7.5 MPa, 75 bar) Maximum Fluid Working Pressure

100 psi (0.68 MPa, 6.8 bar) Maximum Air Working Pressure

Important Safety Instructions

Read all warnings and instructions in this

manual and in your EcoQuip 2 system

manual before using the equipment. Save

all instructions.

WLD

23A6844B

Contents

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

Component Identification . . . . . . . . . . . . . . . . . . . . 5

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Fill the Wet Cup . . . . . . . . . . . . . . . . . . . . . . . . . . 6

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

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 6

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

Preventive Maintenance Schedule . . . . . . . . . . . 6

Tighten Threaded Connections . . . . . . . . . . . . . . 6

Wet Cup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Disconnect the Displacement Pump Lower . . . . . 9

Connect the Displacement Pump Lower . . . . . . . 9

Disconnect the Air Motor . . . . . . . . . . . . . . . . . . 10

Connect the Air Motor . . . . . . . . . . . . . . . . . . . . 10

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

25P031 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Kits and Accessories . . . . . . . . . . . . . . . . . . . . . . . 12

Tube Guard Kit (25P158) . . . . . . . . . . . . . . . . . . 12

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Technical Specifications . . . . . . . . . . . . . . . . . . . . 15

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 16

Related Manuals

Manual in

English Description

3A6825 EcoQuip 2™Dual Line Abrasive Blast

System

3A6845 Stainless Steel Pump Lower

3A6846 Externally Piloted Air Motor

Warnings

3A6844B 3

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

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 Safety Data Sheets (SDSs) 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.

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.

• Engage trigger lock when not dispensing.

• 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.

Warnings

43A6844B

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent, in work area can ignite or explode. To help prevent fire and

explosion:

• Use equipment only in well ventilated areas.

• Abrasive material exiting blast nozzle can generate sparks. When flammable liquids are used near

the blast nozzle or for flushing or cleaning, keep the blast nozzle at least 20 feet (6 meters) away

from explosive vapors.

• Ground all equipment in the work area. See Grounding instructions (ATEX systems only).

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

• Keep a working fire extinguisher in the work area.

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.

• 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. 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.

WARNING

Component Identification

3A6844B 5

Component Identification

Key:

A Ground Screw

B Enclosed Wet Cup

C Wet Cup Fill Port

D Fluid Outlet

E Fluid Inlet

F Pump Lower

G Outlet Housing

H Displacement Rod

K Tie Rod

L Coupling Nut

M Tie Rod Nut

NAirMotor

S Sight Glass

T Muffler

FIG. 1: Component Identification

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(

)

Setup

63A6844B

Setup

Grounding

Pump and air motor: Grounded through the fasteners

that connect the pump bracket to the system frame. The

frame of the system must be connected to a true earth

ground.

If the frame is not grounded, connect a ground wire and

clamp (Part 238909, purchased separately) to the

provided ground screw (A). The wire and clamp must be

connected to a true earth ground.

Fill the Wet Cup

Before operating the pump, fill the wet cup port (C) half

full with Graco Throat Seal Liquid (TSL) or a compatible

water-based lubricant. Refer to (page 14) for wetted

components.

Operation

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever

you see this symbol.

Always de-pressurize the system before starting any

repair procedures. Follow the Pressure Relief

Procedure in your system manual.

Maintenance

Preventive Maintenance

Schedule

The operating conditions of your system determine how

often maintenance is required. Establish a preventative

maintenance schedule by recording when and what kind

of maintenance is needed, then determine a regular

schedule for checking your system.

Tighten Threaded Connections

Before each use, check all hoses for wear or damage.

Replace as necessary. Check that all threaded

connections are tight and leak-free.

Wet Cup

Fill the wet cup half-full of Graco TSL. Verify the level of

TSL daily.

The equipment must be grounded to reduce the risk

of static sparking. Static sparking can cause fumes to

ignite or explode. Grounding provides an escape wire

for the electric current.

FIG. 2

WLD

76/

This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury from

pressurized fluid, such as skin injection, splashing

fluid and moving parts, follow the Pressure Relief

Procedure when you stop spraying and before

cleaning, checking, or servicing the equipment.

Troubleshooting

3A6844B 7

Troubleshooting

1. Follow Pressure Relief Procedure, page 6, before

checking or repairing the pump.

2. Check all possible problems and causes before

disassembling the pump.

Problem Cause Solution

Pump output is low on both strokes. Air supply lines are restricted. • Clear any obstructions from the

air lines.

• Verify that all shutoff valves are

open.

• Increase the pressure, but do not

exceed the maximum working

pressure.

Fluid supply is empty. Refill the water tank. See system

manual.

Fluid outlet line or valves are

clogged.

Clear the fluid outlet line and valves

of any obstructions.

Throat packings are worm. Replace the throat packings.

Air pressure is insufficient or the air

valves are closed or clogged.

Open and clean the air valves.

Enclosed wet cup is too loose. Tighten the enclosed wet cup.

Pump output is low on only one

stroke.

Piston packings are worn. Replace the piston packings.

The ball or seat inside of the piston

check valve is worn.

Replace the ball or seat.

No output. Ball check valves are worn or

damaged.

Check and repair the ball check

valves.

Pump operates erratically. Fluid supply is empty. Refill and reprime the pump.

Ball check valves are held open or

worn.

Clear any obstructions from the ball

check valves. Repair any worn ball

check valves.

Piston packings are worn. Replace the piston packings.

The pump “bounces” at the top of

the stroke.

The bottom pilot valve or bottom

pilot line fittings are leaking or

damaged.

Verify that the pilot line is fully

engaged into the press-to-connect

fittings. Verify that the fittings are

tightened to 10 in-lb (1.1 N•m). Do

not over-tighten.

Replace any damaged pilot valves

or pilot line fittings. Refer to your air

motor manual.

Troubleshooting

83A6844B

The pump “bounces” at the bottom

of the stroke.

The top pilot valve or top pilot line

fittings are leaking or damaged.

Verify that the pilot line is fully

engaged into the press-to-connect

fittings. Verify that the fittings are

tightened to 10 in-lb (1.1 N•m). Do

not over-tighten.

Replace any damaged pilot valves

or pilot line fittings. Refer to your air

motor manual.

Pump will not operate. Air supply lines are restricted. Clear any obstructions from the air

lines. Verify that all shutoff valves

are open. Increase the pressure, but

do not exceed the maximum working

pressure.

Fluid supply is empty. Refill the fluid supply and reprime

the pump.

Fluid outlet line or valves are

clogged.

Clear the fluid outlet line and valves

of any obstructions.

Air pressure is insufficient or the air

valves are closed or clogged.

Open and clean the air valves.

Air motor is not operating properly. Refer to your air motor manual.

Mineral deposits have dried on the

displacement rod.

Refer to your pump lower manual.

• Clean the pump displacement

rod.

• Check or replace the throat

packings.

• Always stop the pump at the

bottom of the stroke and keep the

wet cup filled with TSL.

Problem Cause Solution

Repair

3A6844B 9

Repair

Disconnect the Displacement

Pump Lower

1. Perform the Pressure Relief Procedure, page 6.

2. Disconnect fluid hoses.

3. Unscrew the tie rod nuts (4) from the tie rods (2).

4. Unscrew the coupler (5) and remove the coupler

collars (6).

5. Carefully pull the displacement pump lower (3) off of

the air motor (1).

6. Refer to:

• Your pump lower manual for pump repair and

maintenance instructions.

•Disconnect the Air Motor, page 10, for air motor

removal instructions.

Connect the Displacement

Pump Lower

1. Rotate the pump lower (3) so that the fluid outlet (7)

faces the direction shown in FIG. 3 and then install

the displacement pump lower (3) on the tie rods.

2. Screw the tie rod nuts (4) onto the tie rods (2).

Tighten the tie rod nuts evenly. Torque the nuts to

15-20 ft-lb (20-27 N•m).

3. Install the coupler nut (5) and the collars (6) onto the

displacement rod of the pump lower and then

connect to the air motor rod.

4. Hold the flats of the air motor (1) rod with a wrench.

Then use another wrench to tighten the coupling nut

(5). Torque to 75-80 ft-lb (31-35 N•m).

5. Reconnect all fluid hoses.

6. If the ground wire is in use, verify that the ground

wire is still connected.

7. Fill wet-cup (B) half full of Graco TSL.

FIG. 3

WLD

Repair

10 3A6844B

Disconnect the Air Motor

1. Disconnect the Displacement Pump Lower, page

2. Remove the tie rods (2) from the air motor (1).

3. Disconnect the air hose and the DataTrak cable.

4. Use a socket to remove the four mounting screws

(MS).

5. Lift the air motor (1) out of the mounting bracket.

6. Refer to your air motor manual for repair

instructions.

Connect the Air Motor

1. Place the air motor (1) into the mounting bracket.

2. Install the four mounting screws (MS). See FIG. 4.

3. Connect the air hose and the DataTrak cable.

4. Screw the tie rods (2) into the bottom cover of the

air motor (1). Torque the tie rods to 5-10 ft-lb (1-13.5

N•m).

5. Connect the Displacement Pump Lower, page 9.

FIG. 4

WLD





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