Graco ProComp HVLP 3800 User manual

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441

309907P

Instructions

HVLP 3800 ProComp™,

Huarun 3800 ProComp™, and

4900 ProComp™Turbine Sprayers

Models 246857, 249524, and 249590

6 psi (41 MPa, 0.4 bar) Maximum Working Pressure

Model 249768

8 psi (55 kPa, .5 bar) Maximum Working Pressure

Related Manuals:

309205 - HVLP Turbine Gun

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

7,

TIB

4900 HVLP ProComp

3800 HVLP ProComp

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2

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

General Information . . . . . . . . . . . . . . . . . . . . . . . . . 4

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

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

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

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

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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

Manual Conventions

The following are general Warnings related to the safe setup, use, maintenance and repair of this equipment. Addi-

tional, more specific warnings may be found throughout the text of this manual where applicable.

WARNING

This symbol alerts you to the possibility of serious injury

or death if you do not follow the instructions.

CAUTION

Alerts you to the possibility of damage or destruction

of equipment if you do not follow the instructions.

Warnings

309907P 3

Warnings

WARNINGS

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.

• When flammable liquid is sprayed or used for flushing or cleaning, keep sprayer at least 20 feet (6 m)

away from explosive vapors.

• 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 equipment and conductive objects in work area. See Grounding instructions.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment

until you identify and correct the problem.

ELECTRIC SHOCK HAZARD

Improper grounding, setup, or usage of the system can cause electric shock.

• Turn off and disconnect power cord before servicing equipment.

• Use only grounded electrical outlets.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on sprayer and extension cords.

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 swal-

lowed.

• Read MSDS’s 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.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system com-

ponent. 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.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• Do not alter or modify equipment.

• For professional use only.

• Use equipment only for its intended purpose. Call your Graco distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not use hoses to pull equipment.

• Comply with all applicable safety regulations.

Warnings

4309907P

WARNINGS

PRESSURIZED ALUMINUM PARTS HAZARD

Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids

containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical

reaction and equipment rupture, and result in death, serious injury, and property damage.

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, inhalation of toxic

fumes, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

General Information

309907P 5

General Information

ProComp Turbine Sprayers

The 3800 ProComp turbine, compressor and spray gun

can spray most coatings or finishes currently being used

for automotive refinish, industrial, aerospace, marine,

wood, plastic, and architectural applications.

To produce high-quality paint finishes, the spray gun typ-

ically utilizes inbound air pressure of 6 psi (0.4 bar, 41

MPa) for the HVLP 3800 ProComp and 8 psi (.5bar 55

KPa) for the HVLP 4900 ProComp. A cone of air, pro-

duced by the gun, carries and directs the paint from the

gun to the surface, minimizing overspray and increasing

transfer efficiency. This enables painters to comply with

new, clean air laws that are designed to reduce VOC

(volatile organic compounds) emissions, eases paint

application by requiring fewer paint passes to obtain

coverage and saves on both material and clean-up time.

See HVLP-Turbine Gun manual 309205 (310750

Korean) for more information on the operation and use

of the turbine spray gun.

Unpacking Turbine

Unpack the Graco Turbine Sprayer from the shipping

carton. Inspect for any possible shipping damage. If

there is any damage, call your distributor.

ProComp Turbine Configuration

The Graco 3800 ProComp is a three-stage turbine

sprayer. The Graco 4900 ProComp is a four-stage

turbine sprayer.

3800 ProComp Turbine Component Table

System Model

2-qt Remote

Pressure Pot

30-ft (9 m) Turbine Air Hose

30-ft (9 m) Compressor Air

Hose Gun/Fluid Set

Extra Fluid

Sets

HVLP 3800 Pro-

Comp

Nippon 3800

246857

249590

287819

241413

240071

244118

non-bleeder style

pressure fed bun

with 244124 (#3)

244125 (#4)

244126 (#5)

Huarun 3800

ProComp 249524 287819

241413

240071

244118

non-bleeder style

pressure fed bun

with 244124 (#3)

287752

(0.5 mm, #2)

4900 ProComp 249768 287300 241413

240071

244118 287752

(0.5 mm, #2)

Component Identification

6309907P

Component Identification

FIG. 1

(

)

)LJ 

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FN Item Description

Turbine air outlet Connection for turbine air supply to HVLP-turbine Gun (HVLP 4900

ProComp units include quick connector)

BTurbine power switch On/Off switch for sprayer turbine

CStorage compartment Provides storage for fluid set components

DTurbine handle Folds flat for minimum storage space

ETurbine cover Houses air filter and provides dual air flow to motor and turbine

FAIr filters (pre-filter and main) Provides filtered air for turbine spray gun and turbine motor

Two-speed switch Allows two-speed operation of turbine sprayer motor (used on HVLP

4900 ProComp™units)

HAir filter indicator light Indicates air filter performance and maintenance

JConnector and power cord Provides power for turbine sprayer (power cord provided with turbine)

KResettable circuit breaker Provides protection for turbine motor

LCompressor air outlet Connection for compressor air supply to 2-quart remote pressure pot

MCompressor power switch On/Off switch for compressor

Setup

309907P 7

Setup

Grounding and Electric

Requirements

This equipment requires a 220V AC, 50 Hz, 8A circuit,

with a grounding receptacle.

Do not alter the ground prong or use an adapter.

Use 3-wire, 12 AWG, 50 ft (15 m) or short, extension

cords with ground prong.

Setup/Use Options

Turbine sprayers have a variety of user options. Fig. 2.

Fluid Preparation

• Always strain fluid before you spray. This includes

color, reducers and hardeners, if used.

• When using a turbine spray system, use a slower

drying reducer or thinner to compensate for the

faster drying time caused by the warm air of the tur-

bine. Do not over reduce!

Paint Reduction

Automotive Finishes

Reduce and catalyze all paint to manufacturer’s specifi-

cations. To compensate for the faster drying time of tur-

bine systems, use a reducer that is one step slower than

what is used for conventional air spray.

Industrial or Domestic Coatings

Reduce and catalyze all paint to manufacture’s specifi-

cations. If no reductions are given, first thoroughly mix

fluid to be sprayed. Then, gradually mix in the proper

reducer, testing the fluid until you have the correct

spraying consistency.

To test the consistency, remove the stir stick from the

thinned paint. When the paint stream running off the stir

stick breaks into droplets, the first few drops should be

about one second apart.

WARNING

Page 3

CAUTION

Turbine sprayer performance varies with the viscosity

of the material sprayed and the length of the hose.

To prevent pressure drop, use a short hose.

Setup

8309907P

Connect Fluid and Air Supply

Connect Fluid and Air Supply (Fig. 2)

• The Cart/Compressor provides the air supply for the

remote pressure pot.

• Circled letters indicate hose line connections.

1 Connect gun air supply hose (A) between turbine air

outlet (B) and gun air inlet (C). DO NOT use wrench

to tighten connections; hand tighten only.

2 If using a spray gun cup (D): Connect cup to gun

fluid inlet (E).

If using accessory remote pressure pots (F): Con-

nect fluid supply hose (G) between remote pressure

pot fluid outlet (H) and gun fluid inlet (E), or connect

pressure pot air hose (J) between pressure pot air

regulator inlet (K) and the cart compressor air outlet

(L).

Connect to Electric Supply

Plug turbine power cord into grounded outlet. Grounding

and Electric Requirements, page 7.

FIG. 2

(

GALLONREMOTEPRESSUREPOT

CUPSETUP

FORSPRAYGUN

!

COMPRESSOR

QUARTREMOTEPRESSUREPOT

TIA

Setup

309907P 9

Pressure Relief Procedure

1 Turn off air supply to pressure pot or gun

2 Turn off turbine sprayer.

3Remote Pressure Pot: Tu r n out pressure relief

knob (113) one turn. Wait until pressure is

completely relieved before removing cover. Close

knob.

Spray Gun Cup:

Note: Elevate spray gun and pull trigger. This will

allow fluid in hose to drain back into remote

pressure pot.

a. Unlatch cup cover; loosen or remove cup from

cover to relieve pressure.

b. Clean spray gun and cup as instructed in

HVLP-Turbine Gun manual 309205 (310750

Korean)

FIG. 3

Accessory Remote Pressure Pot

1 Follow Pressure Relief Procedure, page 9.

2 Remove pressure pot cover and fill. Secure cover.

Note: Lightly coat cover threads with petroleum jelly.

Note: Always spray with the least amount of pot pres-

sure required to provide the desired spray pattern and

rate of application, typically 10 psi. Spraying at pot pres-

sures higher than necessary wastes paint and can result

in an orange peel finish.

Fill Cup or Remote Pressure Pot

Spray Gun Cup

Fill cup 3/4 full to keep air pressure tube clean. Install

cover. Latch the under-cup cover (H) to secure it to cup.

Fig. 4. The overcup (J) has threads to secure it in place

on the cup.

FIG. 4

WARNING

The accessory remote pressure pot remains

pressurized until pressure is manually relieved.

To reduce the risk of serious injury from pressur-

ized fluid or accidental spray from gun, always

relieve pressure in the pressure pot before loos-

ening or removing the cover. Also, relieve pres-

sure if the fluid nozzle clogs; and before

cleaning, checking or servicing equipment.

TXDUW

WLD

CAUTION

If the 2-quart remote pressure pot is accidentally

tipped over or held at too great of an angle, fluid may

leak into air regulator and cause damage. Take pre-

cautions to avoid this. If fluid does get into regulator,

clean immediately.

CAUTION

Only hand-tighten pressure pot cover. Excessive tight-

ening may damage cover gasket.

WARNING

The spray gun cup is pressurized by the gun’s air

supply. To reduce the risk of serious injury from

pressurized fluid or accidental spray from gun,

always turn off the air supply to the gun before

removing the spray gun cup.

02845

Setup

10 309907P

Preparing the Spray Surface

To get proper adhesion, ensure surface is completely

clean.

1 Turn turbine On a few minutes before spraying to

allow warm-up.

Note: When turbine is not in use for an extended period

of time, turn it off. The turbine does not shut off automat-

ically.

2 Ensure turbine filter is clean before operating. Clean

filter, page 11.

Note: To adjust spray gun pattern, see HVLP-Turbine

Gun manual 309205 (310750 Korean).

WARNING

Page 3

Sparks can be expected during normal operation

of turbine motor. These sparks can ignite fumes

from flammable liquids, dust particles, and other

flammable substances in the spray area.

• Use additional hose if necessary, and ensure

the turbine is operated in clean, dry, well ven-

tilated area.

• Never use turbine inside spray booth!

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