Duron DURON 231-553 Bedienungsanleitung



INSTRUCTIONS–P

ARTS LIST

308–646

Rev. B

Supercedes Rev. A

ELECTRIC, 120 VAC

Performance 390



Airless

Paint Sprayer

2750

psi (195 bar) Maximum Working Pressure

Model 231–553, Series A

Complete

sprayer with hoses, gun, RAC IV



DripLess



ip Guard and SwitchT

ip

GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

COPYRIGHT

1996, GRACO INC.

Graco

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

This

manual contains important

warnings and information.

READ AND RETAIN FOR REFERENCE

 

Table

of Contents

Warnings 4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Component

Identification and Function

. . . . . . . . . .

Setup 6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Startup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutdown

and Care

12.

. . . . . . . . . . . . . . . . . . . . . . . . . .

Flushing 13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor Test 18.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General

Repair Information

19.

. . . . . . . . . . . . . . . . . . . .

Motor

Brush

20.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displacement

Pump Repair

22.

. . . . . . . . . . . . . . . . . . . .

Motor 26

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor

Start Board

27.

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power

Supply Cord

27.

. . . . . . . . . . . . . . . . . . . . . . . . . . .

ON/OFF

Switch

27.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Drive

Housing, Connecting Rod, Crankshaft

28.

. . . . .

Pressure

Control

30.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Transducer 31.

. . . . . . . . . . . . . . . . . . . . . . . . .

Drain

alve 32.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inlet

Strainer Installation/Removal

32.

. . . . . . . . . . . . . .

Displacement

Pump Parts Drawing and List

33.

. . . . .

Accessories 33

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sprayer

Parts Drawing

34.

. . . . . . . . . . . . . . . . . . . . . . . .

Sprayer

Parts List

35.

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical

Data

36.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 36

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco

arranty and Disclaimers

36.

. . . . . . . . . . . . . . .

Phone

Number

36.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols

Warning Symbol

WARNING

his

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

instructions.

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



If there is any static sparking or you feel an electric shock while using this equipment,

stop

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



Electrically disconnect all equipment in the spray area.



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



Do not smoke in the spray area.



Do not turn on or of

f any light switch in the spray area while operating or if fumes are present.



Do not operate a gasoline engine in the spray area.

WARNING

 

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

MOVING

ARTS HAZARD

Moving

parts can pinch or amputate your fingers.



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



Before servicing the equipment, follow the

Pressure Relief Procedure

on page 9 to prevent the

equipment from starting unexpectedly

INJECTION HAZARD

Spray

from the gun, leaks or ruptured components can inject fluid into your body and cause ex

tremely serious injury

, including the need for amputation. Fluid splashed in the eyes or on the skin

can also cause serious injury



Fluid injected into the skin is a serious injury

. The injury may look like just a cut, but it is a serious

injury

. Get immediate medical attention.



Do not point the gun at anyone or at any part of the body



Do not put your hand or fingers over the spray tip.



Do not stop or deflect leaks with your hand, body

, glove or rag.



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



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



Check the gun dif

fuser operation weekly

. Refer to the gun manual.



Be sure the gun trigger safety operates before spraying.



Lock the gun trigger safety when you stop spraying.



Follow the

Pressure Relief Procedure

on page 9 if the spray tip clogs and before cleaning,

checking or servicing the equipment.

T

ighten all fluid connections before operating the equipment.



Check the hoses, tubes, and couplings daily

. Replace worn or damaged parts immediately

. Do

not repair high pressure couplings; you must replace the entire hose.



Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by

kinks or bends near the couplings.

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 distributor



Do not alter or modify this equipment.



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

echnical Data

on page 36 for the maximum working pressure of this equipment.



Use 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 warn

ings.



Do not 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.



Do not use hoses to pull equipment.



Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not ex

pose Graco hoses to temperatures above 82



C (180



F) or below –40



C (–40

F).



Do not lift pressurized equipment.



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

WARNING

INSTRUCTIONS

Liquids

can be injected into the body by high

pressure airless spray

leaks – especially hose leaks.

Keep

body clear of the nozzle. Never stop leaks with any part of the

body.

Drain all pressure before removing parts.A

void accidental trig

gering

of gun by always setting safety latch when not spraying.

Never spray without a tip guard.

In case of accidental skin injection, seek immediate

“Surgical

reatment”.

Failure to follow this warning can result in amputation or serious

injury.

FIRE

AND

EXPLOSION HAZARD

SKIN INJECTION

HAZARD

READ AND UNDERSTAND ALL LABELS AND INSTRUCTION MANUALS BEFORE USE

Spray

painting,

flushing or cleaning equipment with flammable liq

uids

in confined areas can result in fire or explosion.

Use

outdoors or in extremely well ventilated areas. Ground equip

ment,

hoses, containers and objects being sprayed.

Avoid

all ignition sources such as

static electricity from plastic drop

cloths,

open flames

such as pilot lights, hot objects such as ciga

rettes,

arcs from

connecting or disconnecting power cords or turn

ing

light switches on and off.

Failure

to follow this warning can result in death or serious injury

NOTE: This

is an example of the DANGER label on

your sprayer

. This label is available in other

languages, free of charge. See page 36 to order

308-646 5

05993

Component

Function and Identification

Fig.

05963

AMotor

DC motor

, 120 V

ac, 15A, 1 phase

Drive Assembly

ransfers power from DC motor to the displacement pump

Pressure Adjusting Knob

Controls fluid outlet pressure

ON/OFF Switch

Power switch that controls 120 V

ac power to sprayer

Fluid Outlet

Hose and spray gun is connected here

Displacement Pump

Pressurizes fluid to be sprayed through spray gun

50 ft (15 m) Main Hose

1/4 in. ID, grounded, nylon hose with spring guards on both ends

RAC IV T

ip Guard

Reverse-A-Clean (RAC) tip guard reduces the risk of fluid injection inju

FTx Gun

High pressure spray gun with gun safety latch

RAC IV Switch T

RAC switch tip atomizes fluid and removes clogs from spray tip without

removing tip from spray gun

Pressure Drain V

alve

Relieves fluid pressure when open

Pressure Control

Controls motor to maintain fluid pressure. W

orks with pressure

adjusting knob.

Spray Gun Safety Latch

Inhibits accidental triggering of spray gun

 

Setup

WARNING

If you supply your own hoses and spray gun, be

sure the hoses are electrically conductive, that the

gun has a tip guard, and that each part is rated for

at least

2750 psi (195 bar) Working Pressure

. This

is to reduce the risk of serious injury caused by

static sparking, fluid injection or over-pressurization

and rupture of the hose or gun.

CAUTION

o avoid damaging the pressure control, which

may result in poor equipment performance and

component damage, follow these precautions:

Always use a nylon spray hose at least 50 ft.

(15 m) long.

Never use a wire braid hose as it is too rigid to

act as a pulsation dampener

Never install any shutof

f device between the

filter and the hose.

See Fig. 2.

1. Connect the hose (74) and gun (67)

and screw it

onto the outlet nipple (28). Don’t use thread

sealant, and don’t install the spray tip yet!

2. Fill the wet–cup (102).

Pry of

f the wet-cup seal.

Fill the cup 1/3 full with Graco Throat Seal Liquid

(TSL), supplied. Install the wet-cup seal.

Plug in the sprayer

Be sure the ON/OFF switch

(52) is OFF

. Plug the cord into a grounded outlet at

least 20 feet away from the spray area.

FIRE AND EXPLOSION HAZARD

Proper electrical grounding is essential

to reduce the risk of fire or explosion

which can result in serious injury and

property damage. Also read

FIRE OR

EXPLOSION HAZARD

on page 2.

WARNING

4. Flush the pump

to remove the lightweight oil

which was left in to protect pump parts after fac

tory testing. See page 13.

Prepare the paint

according

to the manufactu

ers’

s recommendations. Remove any paint skin.

Strain the paint through a fine nylon mesh bag

(available at most paint dealers) to remove par

ticles that could clog the spray tip. This is an im

portant step toward trouble-free paint spraying.

Fig. 2

232 33

102

1/4

npsm(m) fluid outlet

Rotate clockwise to increase pressure

Do not install any shutof

f device here

Fill 1/3 full with TSL

Shown in closed or spray position

05993

308-646 7

Operation

How to use the gun trigger safety

When

engaged, the gun safety latch prevents the gun

from accidental triggering. See Fig. 3.

WARNING

INJECTION HAZARD

If the gun still sprays when the gun trig

ger safety is locked, repair the gun. See

manual 308–235, supplied.

Fig. 3

Gun

safety latch

shown engaged

Gun safety latch

shown disengaged

05964

How to use the pressure drain valve.

Use

the pressure drain valve to relieve fluid pressure

from the pump and to help prime the pump. If the valve

senses an over pressure condition, it opens automati

cally to relieve fluid pressure. If this happens, stop

spraying immediately, shut of

f and unplug the sprayer

Determine the cause of the problem and correct it be

fore operating the sprayer again. Refer also to the

Troubleshooting

, page 14. See Fig. 4.

Closed,

or spray position

Open or drain, position

Fig.

04646

How to use the pressure control.

The

pressure control controls the motor operation so

the sprayer maintains constant fluid pressure at the

pump outlet. T

urn the pressure control knob fully coun

terclockwise to obtain the minimum setting. T

urn the

knob clockwise to increase pressure. See Fig. 5.

Fig. 5 01022A

 

Operation

How to use the RAC IV tip guard.

WARNING

INJECTION

HAZARD

o reduce the risk of serious injury

whenever you are instructed to relieve

pressure, follow the

Pressure Relief

Procedure

on page 9.

The tip guard alerts you to the risk and helps prevent

placing any part of the body close to the spray tip. The

tip guard also adjusts the vertical or horizontal spray

pattern. See Fig. 8. The tip guard holds a reversing

spray tip. The tip is in the spraying position when the

tip handle points forward. See Fig. 6.

Clean the front of the tip frequently during the day’

operation. First, follow the

Pressure Relief Procedure

on page 9.

Fig. 6

Tip

handle shown in

spraying position.

urn handle 180

,

trigger gun to clear clog

04647

How to remove a tip clog.

1. Release

the gun trigger

. Lock the safety latch. Ro

tate the RAC IV tip handle 180



. See Fig. 6.

Unlock the safety latch. T

rigger the gun into a pail

or onto the ground to remove the clog.

Lock the safety latch. Rotate the tip handle to the

spraying position.

If the tip is still clogged, lock the safety latch, shut

f and unplug the sprayer

, and open the pressure

drain valve to relieve pressure. Clean the spray tip

as shown in manual 307–848, supplied.

308-646 9

Startup

INJECTION HAZARD

The system pressure must be manually

relieved to prevent the system from

starting or spraying accidentally

. Fluid

under high pressure can be injected through the

skin and cause serious injury

. T

o reduce the risk of

an injury from injection, splashing fluid, or moving

parts, follow the

Pressure Relief Procedure

whenever you:



are instructed to relieve the pressure,



stop spraying,



check or service any of the system equipment,



or install or clean the spray tip.

WARNING

Pressure Relief Procedure

Engage the gun safety latch.

urn the ON/OFF switch to OFF

Unplug the power supply cord.

Disengage the gun safety latch. Hold a metal part

of the gun firmly to a grounded metal pail. T

rigger

the gun to relieve pressure.

Engage the gun safety latch.

6. Open the pressure drain valve. Leave the pressure

drain valve open until you are ready to spray

again.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above

, VER

Y SLOWL

Y loos

en the tip guard retaining nut or hose end coupling to

relieve pressure gradually

, then loosen completely

Now clear the tip or hose obstruction.

Startup Procedure

Use

this procedure each time you start the sprayer to

help ensure the sprayer is ready to operate and that

you start it safely

NOTE:

If this is a first-time startup, flush the sprayer

See page 13.

NOTE:

Refer to Fig. 9 and the other figures referenced

in the text as you start the sprayer

Open the pressure drain valve (42).

See Fig. 7.

2. Don’t install the spray tip until the pump is

primed!

Open

or drain, position

Fig.

04648

3. T

urn the pressure knob (64) to the minimum

setting.

4. Disengage the gun trigger safety

See Fig. 3,

page 7.

CAUTION

Do not run the sprayer dry for more than 30 sec

onds to avoid damaging the pump packings.

5. T

o prime the pump,

turn the sprayer switch (52)

on.

Slowly increase the pressure until the sprayer

starts. When fluid comes from the pressure drain

valve, close the valve.

10 308-646

Startup

WARNING

FIRE AND EXPLOSION HAZARD

o reduce the risk of static sparking and

splashing when priming or flushing the

system, hold a metal part of the gun

firmly to the side of a grounded metal pail before

triggering the gun.

6. T

o prime the hose

, lower the pressure to reduce

splashing. Hold a metal part of the gun firmly

against and aimed into a grounded metal pail.

See

the preceding W

ARNING. Hold the gun trigger

open and slowly increase the pressure until the

pump starts. Keep the gun triggered until all air is

forced out of the system and the fluid flows freely

from the gun. Release the trigger and engage the

gun safety latch.

7. Check all fluid connections for leaks

. Relieve

pressure before tightening the connections.

Engage the gun safety latch.

9. Install the spray tip and tip guard.

Install the

spray tip. If you are using the RAC IV tip guard,

refer to manual 307–848 for installation instruc

tions.

10. Adjust the spray pattern

Increase the pressure until spray from the gun

is completely atomized. T

o avoid excessive

overspray and fogging, and to extend tip and

sprayer life, always use the lowest pressure

needed to get the desired results.

If more coverage is needed, use a larger tip

rather than increasing the pressure.

Adjust the direction of the spray pattern. See

Fig. 8. Engage the gun safety latch. Loosen

the retaining nut (A). Position the tip guard for

a horizontal or vertical pattern. Hold the tip

guard in place and tighten the retaining nut.

NOTE:

Spray patterns will change as tips wear

Change the spray tip if adjusting the pressure will not

improve the spray pattern.

Fig. 8

For

a horizontal

spray pattern

For a vertical

spray pattern

05971

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