Graco President 24H627 Bedienungsanleitung

II 2 G c IIB T3

Instructions - Parts List

President®4-Ball

Pumps 3A1450B

ENG

Air-powered pumps for low pressure, high volume circulation of finishing materials.

Do not use for flushing or purging lines with caustics, acids, abrasive line strippers, and

other similar fluids. For professional use only.

See page 2 for model information, including

maximum working pressure.

US Patent Pending

Important Safety Instructions

Read all warnings and instructions in this

manual. Save these instructions.

TI16614a

Models

23A1450B

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

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

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

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

Stand Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Wall Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Flush Before Using Equipment . . . . . . . . . . . . . . 6

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

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

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

Prime the Pump . . . . . . . . . . . . . . . . . . . . . . . . . 8

Stop the Pump at the Bottom of Its Stroke . . . . . 8

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Preventive Maintenance Schedule . . . . . . . . . . . 9

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Air Line Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Mix Tank Volume . . . . . . . . . . . . . . . . . . . . . . . . . 9

Stall Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Changing the TSL . . . . . . . . . . . . . . . . . . . . . . . 10

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

Reassemble the Coupling Adapter and

Tie Rods to the Motor . . . . . . . . . . . . . . . . . 13

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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

Mounting Hole Layouts . . . . . . . . . . . . . . . . . . . . . 17

Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . 18

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

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

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 20

Models

Related Manuals

Model No. Series

Pump

Length

Maximum Fluid

Working Pressure

psi (MPa, bar)

Maximum Air Inlet

Pressure

psi (MPa, bar) Ratio Lower Size

Connection

Style Material

24H627 A standard 460 (3.2, 32.0) 150 (1.0, 10) 3:1 750cc npt cst

24H628 A standard 460 (3.2, 32.0) 150 (1.0, 10) 3:1 750cc npt sst

24H629 A standard 460 (3.2, 32.0) 180 (1.2, 12) 2:1 1000cc npt sst

24H997 A standard 460 (3.2, 32.0) 180 (1.2, 12) 2:1 1000cc npt cst

24J074 A stubby 460 (3.2, 32.0) 150 (1.0, 10) 3:1 750cc npt cst

24J075 A stubby 460 (3.2, 32.0) 150 (1.0, 10) 3:1 750cc npt sst

Part No. Description

306982 President Air Motor manual

3A0539 4-Ball Lower manual

Warnings

3A1450B 3

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-

tion 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, 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.

WARNINGWARNINGWARNING

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.

• Hold gun firmly to side of grounded pail when triggering into pail.

• 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.

Static charge may build up on plastic parts during cleaning and could discharge and ignite flammable

vapors. To help prevent fire and explosion:

• Clean plastic parts only in a well ventilated area.

• Do not clean with a dry cloth.

• Do not operate electrostatic guns in equipment work area.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and

cause serious injury.

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

servicing equipment.

• Tighten all fluid connections before operating the equipment.

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

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.

Warnings

43A1450B

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, hearing loss, inhalation of

toxic fumes, and burns. This 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.

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.

• 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.

• 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, 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.

WARNINGWARNINGWARNING

WARNING

Installation

3A1450B 5

Installation

Grounding

Pump: use a ground wire and clamp (Y). See FIG. 1.

Loosen the grounding lug locknut (W) and washer.

Insert one end of the ground wire into the slot in the lug

and tighten the locknut securely. Connect the ground

clamp to a true earth ground. Order Part No. 237569,

Ground Wire and Clamp.

Air and fluid hoses: use only electrically conductive

hoses with a maximum of 500 ft. (150 m) combined

hose length to ensure grounding continuity. Check the

electrical resistance of hoses. If total resistance to

ground exceeds 25 megohms, replace hose immedi-

ately.

Air compressor: follow manufacturer’s recommenda-

tions.

Surge tank: use a ground wire and clamp.

Dispense valve: ground through a connection to a

properly grounded fluid hose and pump.

Fluid supply container: follow local code.

Object being sprayed: follow local code.

Solvent pails used when flushing: follow local code.

Use only conductive metal pails, placed on a grounded

surface. Do not place the pail on a nonconductive sur-

face, such as paper or cardboard, which interrupts

grounding continuity.

To maintain grounding continuity when flushing or

relieving pressure: hold metal part of the spray gun

firmly to the side of a grounded metal pail, then trigger

the gun.

Stand Mount

Order Part No. 253692 Pump Stand Kit (accessory).

Mount the pump in the pump stand and secure with the

four screws and lockwashers supplied in the kit.

See Mounting Hole Layouts on page 17. Secure the

stand to the floor with M19 (5/8 in.) bolts which engage

at least 152 mm (6 in.) into the concrete floor to prevent

the pump from tipping.

Wall Mount

Order Part No. 255143 Wall Bracket Kit (accessory).

1. Ensure the wall is strong enough to support the

weight of the pump assembly and accessories, fluid,

hoses, and stress caused during pump operation.

2. Ensure that the mounting location has sufficient

clearance for easy operator access.

3. Position the wall bracket at a convenient height,

ensuring that there is sufficient clearance for the

fluid suction line and for servicing the lower.

4. Drill four 7/16 in. (11 mm) holes using the bracket as

a template. Use either of the two mounting hole

groupings in the bracket. See Mounting Hole Lay-

outs, page 17.

5. Bolt the bracket securely to the wall using bolts and

washers designed to hold in the wall’s construction.

6. Attach the pump assembly to the mounting bracket.

7. Connect air and fluid hoses.

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.

FIG. 1. Ground Wire

TI0720a

Installation

63A1450B

Plumbing

See FIG. 2. Install a fluid shutoff valve (D) between the

mix tank (A) and the pump.

When using a stainless steel pump, use stainless steel

plumbing to maintain a corrosion-resistant system.

Flush Before Using Equipment

The equipment was tested with lightweight oil, which is

left in the fluid passages to protect parts. To avoid con-

taminating your fluid with oil, flush the equipment with a

compatible solvent before using the equipment. See

Flushing, page 9.

Accessories

Install the following accessories in the order shown in

FIG. 2, using adapters as necessary.

Air Line

•Bleed-type master air valve (M): required in your

system to relieve air trapped between it and the air

motor when the valve is closed.

•Pump air regulator (L): to control pump speed and

outlet pressure. Locate close to the pump.

•Air line filter (K): removes harmful dirt and mois-

ture from compressed air supply.

•Second bleed-type air valve (H): isolates air line

accessories for servicing. Locate upstream from all

other air line accessories.

Fluid Line

•Fluid filter: with a 60 mesh (250 micron) stainless

steel element to filter particles from the fluid as it

leaves the pump.

•Fluid drain valve (N): required in your system, to

relieve fluid pressure in the hose and gun.

•Fluid shutoff valve (D): shuts off fluid flow.

Trapped air can cause the pump to cycle unexpect-

edly, which could result in serious injury from splash-

ing or moving parts. Be sure the valve is easily

accessible from the pump and located downstream

from the air regulator. Be sure the air bleed hole

points away from the operator.

To help prevent fluid overpressurization, do not

exceed the maximum air inlet pressure rating to the

air motor (see page 2). If you can apply more than

the maximum air input pressure to the system, install

a safety relief valve between the bleed-type master

air valve and the air motor. The safety relief valve

must be set to open if the air inlet pressure to the

motor exceeds the motor rating.

Installation

3A1450B 7

Key:

AMixTank

B 255143 Wall Bracket Accessory (253692 Pump Stand

Accessory is also available)

C Fluid Supply Line; 1-1/2 in. (38 mm) minimum diameter

D Fluid Shutoff Valve

E Fluid Line

F Surge Tank Stand

G Surge Tank

H Air Shutoff Valve (bleed-type)

J Air Supply Line

K Air Line Filter

L Air Regulator and Gauge

M Bleed-Type Master Air Valve

N Fluid Drain Valve

P Air Line Drain Valve

Y Pump Ground Wire (required see page 5 for installation)

FIG. 2. Typical Installation

TI16616a

G DD

Operation

83A1450B

Operation

Pressure Relief Procedure

1. Close the bleed-type master air valve (M).

2. Open the dispensing valve, if used.

3. Open all fluid drain valves (N) in the system, having

a waste container ready to catch drainage. Leave

drain valve(s) open until you are ready to pump

again.

Prime the Pump

1. Fill the TSL reservoir to the Maximum fill line with

Throat Seal Liquid (TSL). See FIG. 3 on page 10.

NOTE: During operation the TSL level in the reservoir

will fluctuate slightly at pump changeover.

2. Close pump air regulator (L) by turning knob coun-

terclockwise reducing pressure to zero. Close

bleed-type air valve (M). Also verify that all drain

valves (N) are closed.

3. Connect air line (J) to bleed type air valve (M).

4. Check that all fittings throughout system are tight-

ened securely.

5. Connect the fluid supply line (C) from the mix tank

shutoff valve (D) to the pump.

6. Connect the fluid line (E) to the pump outlet.

7. Open bleed-type air valve (M). Slowly turn pump air

regulator (L) clockwise, increasing pressure until

pump starts.

8. Cycle pump slowly until all air is pushed out and

pump and hoses are fully primed.

9. Verify that pump actuations are priming the pump

wet-cup. If not, confirm that the TSL pump piston is

being depressed at bottom changeover, and that

reservoir check valves are not stuck closed.

10. Close the fluid shutoff valve (D) downstream of the

pump. The pump should stall against pressure.

NOTE: In a circulation system, the pump operates con-

tinuously until the power supply is shut off. In a

direct-supply system, the pump starts when the dis-

pense valve is opened, and stops when the dispense

valve is closed.

Stop the Pump at the Bottom of

Its Stroke

Relieve the pressure when you stop the pump for any

reason. Stop the pump on the downstroke, before the air

motor changes over.

Shutdown

Follow Pressure Relief Procedure, page 8.

Always flush the pump before the fluid dries on the dis-

placement rod. See Flushing on page 9.

NOTICE

Failure to stop the pump at the bottom of its stroke

allows fluid to dry on the piston rod, which can dam-

age the throat packings and the TSL pump piston seal

when the pump is restarted.

Maintenance

3A1450B 9

Maintenance

Preventive Maintenance

Schedule

The operating conditions of your particular system

determine how often maintenance is required. Establish

a preventive maintenance schedule by recording when

and what kind of maintenance is needed, and then

determine a regular schedule for checking your system.

Your maintenance schedule should include the follow-

ing:

Flushing

• Flush before changing colors, before fluid can dry in

the equipment, at the end of the day, before storing,

and before repairing equipment.

• Flush at the lowest pressure possible. Check con-

nectors for leaks and tighten as necessary.

• Flush with a fluid that is compatible with the fluid

being dispensed and the equipment wetted parts.

Air Line Filter

Drain and clean as necessary.

Mix Tank Volume

Do not let the mix tank run dry. When the tank is empty,

the pump demands more power as it tries to suck in

some fluid. This causes the pump to run too fast, which

can seriously damage the pump.

Stall Test

Perform a stall test periodically to ensure the piston seal

is in good working condition and prevent system over-

pressurization:

Close the fluid shutoff valve (D) closest to the pump on

the downstroke and be sure that the pump stalls. Open

the fluid shutoff valve to restart the pump. Close the fluid

shutoff valve (D) closest to the pump on the upstroke

and be sure that the pump stalls.

NOTICE

Do not allow the pump to run quickly for a long period

of time as this may damage the packings.

Maintenance

10 3A1450B

Changing the TSL

Check the condition of the TSL and the level in the res-

ervoir every week, minimum. TSL should be changed at

least every month.

Part No. 206995 Throat Seal Liquid (TSL) carries resi-

due from the pump rod into the reservoir. Discoloration

of the TSL fluid is to be expected during normal opera-

tion. After some time the TSL will thicken and darken,

and must be replaced. Thick, dirty TSL will not pump

through the lines and will harden in the pump wet-cup.

How long TSL lasts depends on which chemicals are

used, how much is used, what pressure, and condition

of the pump seal and rod.

A drop in the level of TSL in the reservoir indicates that

the throat packings are starting to wear. Add TSL to the

reservoir and keep the level above the Minimum fill line.

Monitor the usage and condition of the TSL. If pumped

material bypasses the throat packings and enters the

TSL reservoir, replace the packings.

To change the TSL:

1. Shut off the pump.

2. Remove and empty the reservoir bottle. Clean any

residue.

3. Clean screen (Z) of inlet check valve (VI). If check

valves are not sealing and dirty TSL is getting into

the wet-cup, replace the check valves (VI, VO). See

FIG. 3.

4. Fill the reservoir to the Maximum fill line with Throat

Seal Liquid (TSL).

5. Run pump. Each time pump rod reaches bottom of

stroke, check that some TSL is pumped from reser-

voir through wet-cup and back to reservoir.

To avoid the buildup of static charge, do not rub the

plastic bottle with a dry cloth while it is attached to the

pump. Remove the bottle to clean, if needed.

FIG. 3. Cutaway of TSL Reservoir, and Fill Lines

TI15853a

TI15857

Maximum Fill Line

Minimum Fill Line

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