Graco President B Series Datenblatt

Instructions – Parts List

GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441

QUICK KNOCK DOWN PUMP

WITH NON–SPARKING CONSTRUCTION

Mining Pump

10:1 Ratio President Pump

1000 psi (7.0 MPa, 70 bar) Maximum Working Pressure

222167, Series B

307962J

WARNING

This pump is specially designed with non-sparking

construction. Interchange of any part for repair or

improvement of the pump, including the air motor,

must be with identical parts bearing the same part

numbers given on pages 13–15. To reduce the risk

of a fire or explosion and serious injury, the use of

any other parts is prohibited.

01605

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

2 307962

Table of Contents

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

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

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

Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Air Motor Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displacement Pump Service 12. . . . . . . . . . . . . . . . . . . .

Parts 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Hole Layout 16. . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Information 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious

injury or death if you do not follow the corresponding

instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the cor-

responding instructions.

WARNING

INSTRUCTIONS

EQUIPMENT MISUSE HAZARD

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

DThis equipment is for professional use only.

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

DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco

distributor.

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

DCheck equipment daily. Repair or replace worn or damaged parts immediately.

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

Technical Data on pages 17 for the maximum working pressure of this equipment.

DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-

nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

DDo not use hoses to pull equipment.

DRoute 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).

DWear hearing protection when operating this equipment.

DDo not lift pressurized equipment.

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

307962 3

WARNING

SKIN INJECTION HAZARD

Spray from the gun/valve, hose leaks, or ruptured components can inject fluid into your body and

cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the

skin can also cause serious injury.

DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-

cal treatment.

DDo not point the gun/valve at anyone or at any part of the body.

DDo not put your hand or fingers over the spray tip/nozzle.

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

DDo not “blow back” fluid; this is not an air spray system.

DAlways have the tip guard and the trigger guard on the gun when spraying.

DCheck the gun diffuser operation weekly. Refer to the gun manual.

DBe sure the gun/valve trigger safety operates before spraying/dispensing.

DLock the gun/valve trigger safety when you stop spraying/dispensing.

DFollow the Pressure Relief Procedure on page 6 whenever you: are instructed to relieve pres-

sure; stop spraying/dispensing; clean, check, or service the equipment; and install or clean the

spray tip/nozzle.

DTighten all fluid connections before operating the equipment.

DCheck the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.

Permanently coupled hoses cannot be repaired; replace the entire hose.

DUse only Graco approved hoses. Do not remove any spring guard that is used to help protect the

hose from rupture caused by kinks or bends near the couplings.

MOVING PARTS HAZARD

Moving parts, such as the air motor piston, can pinch or amputate your fingers.

DKeep clear of all moving parts when starting or operating the pump.

DBefore servicing the equipment, follow the Pressure Relief Procedure on page 6 to prevent the

equipment from starting unexpectedly.

4 307962

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.

DGround the equipment and the object being sprayed. Refer to Grounding on page 5.

DIf there is any static sparking or you feel an electric shock while using this equipment, stop spray-

ing/dispensing immediately. Do not use the equipment until you identify and correct the problem.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being sprayed/dispensed.

DKeep the spray/dispense area free of debris, including solvent, rags, and gasoline.

DElectrically disconnect all equipment in the spray/dispense area.

DExtinguish all open flames or pilot lights in the spray/dispense area.

DDo not smoke in the spray/dispense area.

DDo not turn on or off any light switch in the spray/dispense area while operating or if fumes are

present.

DDo not operate a gasoline engine in the spray/dispense area.

DThis pump is specifically designed with non-sparking construction. Interchange of any parts for

repair or improvement of the pump, including the air motor, must be with identical parts bearing the

same part numbers given on page 13–15. To reduce the risk of fire or explosion and serious injury,

the use of any other parts is prohibited.

DNever use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or

fluids containing such solvents in pressurized aluminum equipment. Such use could result in a

chemical reaction, with the possibility of explosion.

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.

DKnow the specific hazards of the fluid you are using.

DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

307962 5

Installation

Grounding

WARNING

FIRE AND EXPLOSION HAZARD

Before operating the pump, ground the

system as explained below. Also read

the section FIRE AND EXPLOSION

HAZARD on page 4.

To reduce the risk of static arcing, ground the pump and

all other spray equipment used or located in the spray

area. CHECK your local electrical code for detailed

grounding instructions for your area and type of equip-

ment. BE SURE to ground all of this spray equipment:

1. Pump: loosen grounding lug locknut (A) and washer.

Insert one end of a 12 ga (1.5 mm2) minimum

groundwire (B) into slot in lug (C) and tighten locknut

securely. See Fig. 1. Connect the other end of the

wire to a true earth ground. Always check your local

code. Order Part No. 237569.

2. Air hoses: use only electrically conductive air hoses.

3. Fluid hoses: use only electrically conductive fluid

hoses.

4. Air compressor: follow the manufacturer’s recom-

mendations.

5. Dispensing valve: grounding is obtained through

connection to a properly grounded fluid hose and

pump.

6. Fluid supply container: according to your local code.

7. Object being sprayed: according to your local code.

8. All solvent pails used when flushing, according to lo-

cal code. Use only metal pails, which are conductive,

placed on a grounded surface. Do not place the pail

on a non–conductive surface, such as paper or card-

board, which interrupts the grounding continuity.

9. To maintain grounding continuity when flushing or re-

lieving pressure, always hold a metal part of the valve

firmly to the side of a grounded metal pail, then trig-

ger the valve.

Fig 1

6 307962

Operation

Pressure Relief Procedure

WARNING

SKIN INJECTION HAZARD

Fluid under high pressure can be in-

jected through the skin and cause

serious injury. To reduce the risk of an

injury from injection, splashing fluid, or moving

parts, follow the Pressure Relief Procedure

whenever you:

Dare instructed to relieve the pressure,

Dstop spraying,

Dcheck or service any of the system equipment,

Dor install or clean the spray tips.

1. Shut off the air to the pump. Disconnect the air

hose to be sure pressure is relieved in the air

motor.

2. If the pump or hose is not clogged and the hose is

not closed off, fluid pressure will be relieved.

3. If the pump or hose is clogged, wrap a heavy cloth

around the hose coupling at the pump outlet.

Slowly unscrew the hose to relieve pressure

gradually and reduce splashing.

4. If the clog does not appear to be in the hose,

clamp the pump outlet housing in a vise, and

hammer the intake valve lug nut to unscrew it. This

should relieve pressurized material trapped in the

pump.

307962 7

Operation

WARNING

To reduce the risk of static arcing which could

result in a fire or explosion and serious injury, use

only non-sparking tools if the pump is being as-

sembled or worked on in a hazardous atmosphere.

Pump Assembly

1. Remove the cotter pin from the connecting rod.

Screw the connecting rod into the air motor rod until

the pin holes align. Install the pin. Bend the ends of

the pin tightly and smoothly around the connecting

rod. This is to avoid scratching the cylinder during op-

eration. Push the displacement rod up and engage

the threads of the upper lug nut in the air motor base.

Hand tighten the lug nut and then secure by tapping

the lug nut with a hammer.

2. Connect a grounded air hose to the air inlet. Provide

an air regulator to control pump speed and pressure.

To help protect the air motor, provide an air motor lu-

bricator.

NOTE: If an air motor lubricator is not used, manually

lubricate the motor each day. Close the air

regulator. Remove the air inlet hose and squirt

several drops of SAE 10 motor oil into the air

inlet. Attach the hose and run the pump slowly

for a couple of minutes to distribute the oil.

3. Connect a suitable hose to the 3/4 npt fluid outlet.

Connect a dispensing valve to the hose.

4. Connect a ground wire to the pump grounding lug.

Connect the other end of the ground wire to known

ground. See Grounding on page 5.

Wet All Internal Parts of the Pump and Hose

A dry pump and hose draws moisture out of the material

being pumped, which contributes to pump clogs. To re-

duce clogging, flush the pump and hose with clean water

before priming it with material.

Regular Operation

1. Mix the material thoroughly to remove all lumps.

Pay particular attention to the corners and sides of

the mixing container.

2. Mount the pump in the mixing container.

NOTE: If the pump was flushed with water, direct the

hose into a waste container until all water is

displaced with material.

3. Supply air to the pump. Always open the air regulator

slowly and then increase pressure gradually until the

pump is running smoothly. Use the lowest pressure

necessary to give the desired results.

To Stop Dispensing

Shut off the air supply to the pump and relieve the pres-

sure.

AIR INLET

President: 1/2 npt

FLUID OUTLET

3/4 NPT

INTAKE VALVE LUG NUT

WEEP HOLE

one on each side

of motor

Fig 2

COTTER PIN

HOLES

UPPER LUG NUT

COUPLING

8 307962

Operation

If the Pump Will Not Be Used for Five

Minutes or Longer

1. Remove the pump from the mixing container. Turn

on the air and direct the material flow into the mixing

container. Flush the pump with clean water until thor-

oughly cleaned. Use the outlet hose to clean the out-

side of the pump.

NOTE: If material has leaked through the weep holes

on either side of the motor base, direct the out-

let hose into these holes and flush thoroughly.

2. Remove the outlet hose, and then turn the pump up-

side down to drain. This helps prevent rust.

If the Pump is Being Stored

Clean the pump thoroughly to reduce rust. Flush with wa-

ter and disassemble the pump if further cleaning is need-

ed. Turn the pump upside down to drain the water out.

Flush again with a rust inhibiting chemical.

If the Pump or Hose Clogs

WARNING

If the pump or the hose clogs, use extreme caution

to avoid splashing material in your eyes while

clearing the clog. Follow the procedure below.

1. Shut off the air supply to the motor.

2. Wrap a heavy cloth around the hose coupling at the

pump outlet. Slowly unscrew the hose to relieve

pressure gradually and reduce splashing.

3. If the clog does not appear to be in the hose, hammer

the intake valve lug nut to loosen it and then unscrew

it. This should help relieve pressurized material

trapped in the pump.

4. Clean the intake valve and reassemble it. Flush the

pump.

5. If the piston check valve is clogged, relieve pressure.

Remove the intake valve and then remove the air

motor. See page 10. Push the throat packing assem-

bly out of the pump cylinder. Clean the pump and re-

place the throat packing assembly. See page 12.

6. If the pump is still clogged, shut off the air to the

pump. Disassemble the pump and clean it thorough-

ly. See page 12.

307962 9

Troubleshooting

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

Before servicing this equipment always make sure to

Relieve the Pressure.

Check all possible problems and solutions before

disassembling the pump.

Problem Cause Solution

Excess material leaks from the weep

holes in the base of the motor.

Worn throat packings Flush the weep holes when flushing

the pump. Replace the throat pack-

ings.

Pump doesn’t build pressure. Worn piston and/or throat packings Replace the packings.

Pump is clogged. Material has dried in the pump Flush pump more frequently; replace

packings as needed.

Material is too dry Add water.

Pump and hose not flushed with water

before pumping grout

Wet hose and pump with water before

pumping grout. See page 7.

Motor leaks air or stops Lack of lubrication Rebuild motor, and inject oil into air in-

let daily.

WARNING

This pump is specially designed with non-sparking

construction. Interchange of any part for repair or

improvement of the pump, including the air motor,

must be with identical parts bearing the same part

numbers given on pages 13–15. To reduce the risk

of a fire or explosion and serious injury, the use of

any other parts is prohibited.

10 307962

Air Motor Service

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 6.

WARNING

Never operate the pump with the air motor plates

removed. The air motor piston, located behind the

air motor plates, moves when air is supplied to the

motor. Moving parts can pinch or amputate your

fingers or other body parts.

WARNING

To reduce the risk of static arcing which could

result in a fire or explosion and serious injury, use

only non-sparking tools if the pump is being as-

sembled or worked on in a hazardous atmosphere.

NOTE: Reference letters in parentheses in the text re-

fer to the figure illustrations.

Restarting a Stalled Air Motor

1. Relieve the pressure. This usually reseats the air

transfer valves. Reconnect the air and turn it on.

2. If the air transfer valves do not reseat, screw the cap

nut (131) out of the cylinder (115), pull up on the trip

rod (101) and screw the cap nut back into the cylin-

der. See Fig 3.

Replacing the Throat Bearing

1. Relieve pressure.

2. Disconnect the displacement pump from the motor.

3. Remove the warning plate (128) from the motor

base. See Fig 3.

4. Use a 1/4 in. punch to unscrew the bearing (125).

See Fig 3.

5. Reassemble in the reverse order of disassembly. Be

sure the air motor plates are installed before operat-

ing the motor.

Repairing the Air Motor

CAUTION

To reduce the risk of damaging parts:

Use special pliers, Part No. 207579, when handling

the trip rod. Damage to the surface of the trip rod

can result in erratic air motor operation.

Always lift the cylinder straight up off the piston.

Never tilt the cylinder as it is being removed.

WARNING

Always keep fingers clear of the toggle assemblies

(B) to avoid pinching or amputating them. See Fig.

1. Relieve the pressure.

2. Remove the displacement pump. See page 12.

3. From below the motor base (102), push up the piston

rod. Unscrew the cap nut (131) just until you can pull

up the cap nut and then grasp the trip rod (101) with

the special padded pliers. Remove the cap nut. See

Fig 3.

4. Remove the screws (105). Carefully pull the cylinder

straight up off of the piston. See Fig 3.

Fig 3

102

105

115

101

131

128

125

GRASP WITH

PADDED PLIERS

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