Graco Inc 308-333 User Manual

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INSTRUCTIONS-PARTSLIST

308±333

This manual contains important

 

warnings and information.

First choice when

READ AND KEEP FOR REFERENCE.

quality counts.

 

INSTRUCTIONS

Rev. C

Supersedes Rev. A

and PCN C

30:1 RATIO, STAINLESS STEEL

President Sprayer

3600 psi (25.0 MPa, 250 bar) Maximum Fluid Working Pressure

120 psi (0.83 MPa, 8.3 bar) Maximum Air Inlet Pressure

Part No. 236±066

Wall Mount Pump

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440±1441 http://www.graco.com

COPYRIGHT 1993, GRACO INC.

Graco Inc. is registered to I.S. EN ISO 9001

Table of Contents

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

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

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

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

Graco Phone Number . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the corresponding instructions.

WARNING

INJECTION HAZARD

Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause a serious injury.

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

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

DDo not put hand or fingers over the spray tip.

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

DDo not ªblow backº fluid; this is not an air spray system.

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

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

DBe sure the gun trigger safety operates before spraying.

DLock the gun trigger safety when you stop spraying.

DFollow the Pressure Relief Procedure on page 7 whenever you: are instructed to relieve pressure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip.

DTighten all the 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.

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.

308±333

WARNING

FIRE AND EXPLOSION HAZARD

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

DGround the equipment and the object being sprayed. See Grounding on page 4.

DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and correct the problem.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being sprayed.

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

DElectrically disconnect all the equipment in the spray area.

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

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

DDo not smoke in the spray area.

DDo not operate a gasoline engine in the spray area.

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

DDo not exceed the maximum working pressure of the lowest rated system component. This equipment has a 3600 psi (25.0 MPa, 250 bar) maximum fluid working pressure at 120 psi (0.83 MPa, 8.3) maximum air inlet pressure.

DDo not lift pressurized equipment.

DUse only Graco approved hoses. Do not remove hose spring guards, which help protect the hose from rupture caused by kinks or bends near the couplings.

DUse fluids or solvents that are compatible with the equipment wetted parts. See the Technical Data section of all the equipment manuals. Read the fluid and solvent manufacturer's warnings.

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

MOVING PARTS HAZARD

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

DDo not operate the equipment with the air motor plates removed.

DKeep clear of any moving parts when starting or operating the equipment.

308±333 3

Installation

Grounding

WARNING

FIRE AND EXPLOSION HAZARD

Before operating, ground the system as explained below. Also read the section

FIRE AND EXPLOSION HAZARD on page 3.

DPump: loosen the grounding lug locknut (W) and washer (X). Insert one end of a 1.5 mm2 (12 ga) minimum ground wire (Y) into the slot in lug (Z) and tighten the locknut securely. See Fig. 1. Connect the other end of the ground wire to a true earth ground.

DAir hoses: use only electrically conductive air hoses.

DFluid hoses: use only electrically conductive fluid hoses.

DAir compressor: follow manufacturer's recommendations.

DSpray gun: grounding is obtained through connection to a properly grounded fluid hose and pump.

DFluid supply container: according to your local code.

DObject being sprayed: according to your local code.

DAll solvent pails used when flushing, according to local 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 cardboard, which interrupts the grounding continuity.

DTo maintain grounding continuity when flushing or relieving pressure, always hold a metal part of the spray gun firmly to the side of a grounded metal pail, then trigger the spray gun.

X

Y

W

Z

 

64

Fig. 1

4308±333

Installation

NOTES:

DBe sure that all operators read and understand this entire manual and the separate manuals supplied with components and accessories before using this equipment.

DReference numbers and letters in parentheses refer to the figures and parts lists.

DAccessories are available from your Graco distributor. If you supply your own accessories, be sure the are adequately sized to meet your system's requirements.

DThe Typical Installation on page 6 is only an example. For assistance in designing a system to meet your particular needs, contact your Graco distributor.

System Accessories

WARNING

Two required components are supplied with your pump, to help reduce the risk of serious injury including fluid injection, splashing in the eyes or on the skin, or injury from moving parts if you are adjusting or repairing the pump.

The bleed-typemaster air valve (B)relieves air trapped between this valve and the pump. Trapped air can cause the pump to cycle unexpectedly. To bleed air from the pump, the pump air regulator

(F) must be open when you close this valve.

The fluid drain valve (H) assists in relieving fluid pressure in the displacement pump, hose, and gun; triggering the gun to relieve pressure may not be sufficient.

Install an air line filter (E) in the main air line, to remove harmful dirt and moisture from the compressed air supply. To provide automatic lubrication of the air motor, install an air line lubricator (P) downstream from the pump air regulator (F). Install a second master air valve (D) in the main air line, to isolate the accessories for servicing.

Mounting the Pump

Mount the wall bracket 5 ft (1.5 m) above the floor. Be sure the wall is strong enough to support the weight of the pump and accessories, fluid, hoses, and stress caused during pump operation. See Fig. 2 for a bracket mounting hole pattern.

5 in. (127 mm)

6.26 in.

(159 mm) Four 0.47 in.

(12 mm) diameter

holes

4

Fig. 2

A pump runaway valve is available. The runaway valve senses when the pump is running too fast and automatically shuts off the air to the motor. A pump which runs too fast can be seriously damaged. Install the runaway valve (R) at the location shown in the Typical Installation.

Hose and Gun Connections

Refer to the Typical Installation. Apply thread sealant and screw the suction hose (J) into the fluid intake elbow (S).

Connect one end of the fluid hose (L) to the filter (K) outlet and the other to the fluid inlet of the spray gun

(N). Do not install the spray tip in the gun yet.

Close the bleed-typemaster air valve (B) and the air regulators (F and G). Connect a grounded air hose (M) between the outlet of the gun air regulator (G) and the air inlet of the spray gun (N). The pump ar regulator

(F) is connected to the pump (A) with a hose (C).

308±333 5

Typical Installation ±

Cart-MountModel Shown

KEY

APump

BBleed-TypeMaster Air Valve (required for pump)

CPump Air Supply Hose

DMaster AIr Valve (for accessories)

EAir Line Filter

FPump Air Regulator

GGun Air Regulator

HFluid Drain Valve (required)

JFluid Suction Hose

KFluid Filter

LGun Fluid Supply Hose

MGun Air Supply Hose

NAir-AssistedAirless Spray Gun

PAir Line Lubricator

RRunaway Valve Location (for wall mount pumps)

SFluid Intake Elbow

YGround Wire (required; see page 4 for installation instructions.

NOTE: Some components shown are included with the sprayers, depending on the model. Refer to the parts list on page 10 for parts included in your sprayer.

N

M

L

Installation

D E

Y

A

 

F

 

G

 

R

 

L

 

P

M

C

 

K

 

H

J

 

B S

2 19A

6308±333

Operation

Pressure Relief Procedure

WARNING

INJECTION HAZARD

Fluid under high pressure can be injected 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 any part of the system.

1.Lock the spray gun safety latch.

2.Close the bleed-typemaster air valve (supplied in your system).

3.Shut off the air regulators.

4.Unlock the spray gun safety latch.

5.Hold a metal part of the gun firmly to the side of a grounded metal pail, and trigger the gun to relieve pressure.

6.Lock the spray gun safety latch.

7.Open the drain valve (supplied in your system), having a container ready to catch the drainage.

8.Leave the drain valve open until you area ready to spray again.

If you suspect that the spray tip or hose is completely clogged or that pressure has not been fully relieved, very slowly loosen the tip retaining nut or hose end coupling and relieve pressure gradually. Clean the tip or hose obstruction.

Flush the Pump Before Using

Pumps are tested in lightweight oil which is left in to protect the pump parts. To prevent contamination of the fluid, flush the pump with a compatible solvent before using it.

WARNING

Before flushing, be sure the entire system and flushing pails are properly grounded. Refer to

Grounding on page 4. Follow the Pressure Relief Procedureabove and remove the spray tip from the gun. Always use the lowest possible fluid pressure, and maintain firm metal-to-metal contact between the gun and the pail during flushing to reduce the risk of fluid injection, static sparking, and splashing in the eyes or on the skin.

Starting and Adjusting the Pump

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

See Fig. 3. Be sure the air regulators (10a and 10b) and bleed-typemaster air valve (16) are closed. Do not install the spray tip yet.

Screw the bung adapter (34) into the container's bung hole, slide the suction tube through the adapter into the container, and tighten the thumbscrew (33) to secure. Position the tube so its end is about 1/2 in. (13 mm) off the bottom of the container.

Open the drain valve (6) to prime the pump. Open the bleed-typemaster air valve (16). Open the gun air regulator (10a). Hold a metal part of the spray gun firmly to the side of a grounded metal pail and trigger the gun.

Slowly open the pump air regulator (10b) until the pump starts. Run the pump slowly until fluid comes from the drain valve (6).

Close the drain valve and continue to run the pump until all the air is pushed out of the fluid lines. Release the gun trigger and lock the safety latch; the pump will stall against the pressure.

With the pump and lines primed, and with adequate air pressure and volume supplied, the pump will start and stop as the spray gun is triggered and released.

Relieve the pressure, then install the spray tip in the gun.

Use the pump air regulator (10b) to control the pump speed and fluid pressure. Always use the lowest pressure necessary to achieve the desired results. Higher pressures waste fluid and cause premature wear of the pump packings and spray tip.

Keep the packing nut/wet-cupfilled with Graco Throat Seal Liquid (TSL) to help prolong the packing life. Check the tightness of the packing nut weekly. The packing nut should be tight enough to prevent leakage

± no tighter. Always relieve the pressure before adjusting the packing nut.

308±333 7

Operation

Never allow the pump to run dry of the fluid being

 

pumped. A dry pump will quickly accelerate to a high

 

speed, possibly damaging itself. If your pump acceler-

10a 10b

ates quickly, or is running too fast, stop it immediately

 

and check the fluid supply. If the supply container is

 

empty and air has been pumped into the lines, refill the

 

supply container and prime the pump and lines with

 

fluid, being sure to eliminate all air from the fluid sys-

 

tem, or flush the pump as described in Shutdown and

 

Care at right.

 

 

16

Shutdown and Care

 

 

6

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

Always relieve the pressure whenever you shut off the pump. Stop the pump at the bottom of its stroke to keep fluid from drying on the exposed displacement rod and damaging the throat packings.

Always flush the pump with a compatible solvent

 

before the fluid can dry on the displacement rod and at

 

the end of each day. Relieve the pressure after

Fig. 3

flushing.

34

33

 

21

 

8308±333

Notes

308±333 9

Parts

Part No. 236±066

Wall Mount Pump

1See Detail.

2Apply thread sealant to male threads, except at swivel connections

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

 

5

 

 

 

23

 

 

 

 

 

 

 

 

 

 

32

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

2

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DETAIL

 

 

 

 

 

 

 

 

 

 

 

 

35

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

18

2

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

19 2

2

14

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

2

15

 

 

 

 

 

12

2

 

22

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

2

 

 

 

16

8

9

28

10

11

 

 

 

 

 

 

 

 

 

2

 

 

2

 

 

 

 

2

39

13 (REF)

A

1

21

34

33

2 1 A

10 308±333