Graco ProComp HVLP 3800, ProComp HVLP 4900 Instructions Manual
Instructions – Parts List
Parts
HVLP 3800 and 4900
ProCompt Turbine Sprayers
309242K
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
120V AC 50/60 Hz
HVLP 3800 ProCompt with Three-Stage Turbine
Model 233423
6 psi (41 kPa, 0.4 bar) Maximum Working Pressure
HVLP 4900 ProCompt with Four-Stage Turbine
Model 233455
8 psi (55 kPa, 0.5 bar) Maximum Working Pressure
Model descriptions are in Turbine
Components Table on page 4.
Related Manuals
HVLP–Turbine Gun 309205. . . . . . . . . . . . .
4900 HVLP ProComp
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001
TI0875
Table of Contents
Symbols
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information 4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Identification and Function 5. . . . . . . . . . . .
Setup 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutdown 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Drawing 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 22. . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 22. . . . . . . . . . . . . . . . . . . . . . . . . .
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.
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
instructions.
D Ground the equipment. See Grounding on page 6.
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing immediately. Do not use the equipment until you identify and correct the problem.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
D When flammable liquid is sprayed or used for flushing or cleaning the equipment, the turbine must
be placed at least 20 feet (6.1 m) away from areas where hazardous concentrations of flammable
vapors are likely to occur.
D Use additional air hose if necessary to ensure that the turbine is operated in a clean, dry, well-ven-
tilated area.
D Never place the turbine inside a spray booth! Use this equipment outdoors or in extremely well-
ventilated areas.
D Keep the spray area free of debris, including solvent, rags, and gasoline.
D Electrically disconnect all equipment in the spray area.
D Extinguish all open flames or pilot lights in the spray area.
D Do not smoke in the spray area.
D Do not turn on or off any light switch in the spray area while operating or if fumes are present.
D Do not operate a gasoline engine in the spray area.
2 309242
INSTRUCTIONS
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
D This equipment is for professional use only.
D Read all instruction manuals, tags, and labels before you operate the equipment.
D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
D Do not alter or modify this equipment. Use only genuine Graco parts.
D Check equipment daily. Repair or replace worn or damaged parts immediately.
D Do not exceed the maximum working pressure of the lowest-rated system component.
HVLP 3800 ProCompt turbine has a working pressure of 6 psi (0.4 bar, 41 kPa).
HVLP 4900 ProCompt turbine has a working pressure of 8 psi (0.5 bar, 55 kPa).
D Use fluids and solvents that are compatible with the equipment wetted parts. See Specifications
on page 21 for wetted parts information.
D Do not use hoses to pull equipment.
D Route 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).
D Wear hearing protection when operating this equipment.
D Do not lift pressurized equipment.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
D Do not point the gun at anyone or at any part of the body.
D Do not put your hand or fingers over the gun fluid nozzle.
D Do not stop or deflect leaks with your hand, body, glove, or rag.
D Do not “blow back” fluid; this is not an air spray system.
D Follow the Pressure Relief Procedure on page 10 if the fluid nozzle clogs and before you clean,
check, or service the equipment.
D Tighten all fluid connections before you operate the equipment.
D Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
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.
D Know the specific hazards of the fluid you are using.
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state, and national guidelines.
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
D Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents, or
fluids containing such solvents in the turbine spray system, which contains aluminum and/or galvanized-coated parts. Such use could result in a serious chemical reaction, with the possibility of
explosion, which could cause death, serious injury, and/or substantial property damage.
309242 3
General Information
HVLP ProCompt Turbine Sprayers
The HVLP 3800 ProCompt and the HVLP 4900
ProCompt turbines, compressor and spray guns 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
typically utilizes inbound air pressure of 6 psi (0.4 bar,
41 kPa) for the HVLP 3800 ProCompt and 8 psi (0.5
bar, 55 kPa) for the HVLP 4900 ProCompt. A cone of
air, produced 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 for more
information on the operation and use of the turbine
spray gun.
Unpacking Turbine
Unpack the Graco Turbine Sprayer from the shipping
carton, and inspect for any possible shipping damage.
If there is any damage, call your distributor.
HVLP ProCompt Turbine Configurations
Graco turbines come in the following basic configurations:
D HVLP 3800 ProCompt three-stage turbine sprayer
D HVLP 4900 ProCompt four-stage turbine sprayer
HVLP 3800 and 4900 ProCompt Turbine Components Table
30-ft (9 m) Turbine
System Model 2–qt Remote
Pressure Pot
HVLP 3800
ProCompt
HVLP 4900
ProCompt
233423 287819 241413
233455 287819 241413
Air Hose
30-ft (9 m) Com-
pressor Air Hose
240071
240071
Gun /
Fluid Set
244118 non-
bleeder style
pressure–fed gun
with 244124 (#3)
244118 non-
bleeder style
pressure–fed gun
with 244124 (#3)
Extra/Fluid
Sets
244125 (#4)
244126 (#5)
244123 (#2)
244125 (#4)
244126 (#5)
244127 (#6)
4 309242
Component Identification and Function
Fig. 1
C
B
A
H
L
M
G
D
J
K
E
F
TI0876
A Turbine air outlet Connection for turbine air supply to HVLP–Turbine Gun (HVLP 4900
ProCompt units include quick connector)
B Turbine power switch ON/OFF switch for sprayer turbine
C Storage compartment Provides storage for fluid set components
D Turbine handle Folds flat for minimum storage space
E Turbine cover Houses air filter and provides dual air flow to motor and turbine
F Air filters (pre-filter and main) Provide filtered air for turbine spray gun and turbine motor
G Two-speed switch Allows two-speed operation of turbine sprayer motor (used on HVLP
4900 ProCompt units)
H Air filter indicator light Indicates air filter performance and maintenance
J Connector and power cord Provides power for turbine sprayer (power cord provided with turbine)
K Resettable circuit breaker Provides protection for turbine motor
L Compressor air outlet Connection for compressor air supply to 2–quart remote pressure pot
M Compressor power switch On/Off switch for compressor
309242 5
Setup
Grounding
WARNING
Improper installation or alteration of the grounding
plug will result in a risk of electric shock, fire, or
explosion that could cause serious injury or death.
This equipment requires a 120V AC, 60 Hz, 15A circuit
with a grounding receptacle. See Fig. 2.
grounded outlets
grounding prong
Fig. 2
Extension cord must be 3-wire, 12 AWG, 50 ft (15 m)
or shorter.
Do not alter the ground prong or use an adapter.
Setup/Use Options
HVLP Turbine Sprayers have a variety of user options.
See Fig. 3.
D See HVLP–Turbine Gun manual 309205 for in-
formation on turbine spray gun setup and operation.
Prepare the Fluid
D Always strain the fluid before you spray; this
includes color, reducer, and hardeners if used.
D When using a turbine spray system, use a slow-
er drying reducer or thinner to compensate for the
faster drying time caused by the warm air of the
turbine. Do not over reduce.
CAUTION
The performance of the turbine sprayer varies with
the viscosity of the material and the length of the
hose. Keep the hose short to prevent pressure drop.
Paint Reduction — Automotive Type Finishes
Reduce and catalyze all paint to manufacturer’s specifications. To compensate for the faster drying time of
turbine systems, use a reducer that is one step slower
than what is used for conventional air spray.
Paint Reduction — Industrial or Domestic
Coatings
Reduce and catalyze all paint to manufacturer’s specifications. If no reductions are given, first thoroughly
mix the 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.
6 309242
Setup
Connect the Fluid and Air Supply
See Fig. 3
D The compressor provides the air supply for the
remote pressure pot.
D The circled letters in Fig. 3 indicate hose line con-
nections.
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.
The HVLP 4900 ProCompt turbine uses a quick
connector at outlet (B). A wrench is not required
for hose connection.
E
C
2. If using a spray gun cup (D):
Connect the cup to the gun fluid inlet (E).
If using accessory remote pressure pot (F): Connect fluid supply hose (G) between remote pressure pot fluid outlet (H) and gun fluid inlet (E).
Connect pressure pot air hose (J) between pressure pot air regulator inlet (K) and the compressor
air outlet (L).
Connect to Electric Supply
Plug turbine power cord into grounded outlet.
NOTE: Extension cord must be 3-wire, 12 AWG, 50 ft
(15 m) or shorter.
D
cup-over option
(see manual 309205)
G
Y
remote pressure pot setup for spray gun
X
X
B
L
HVLP 4900 ProCompt
Turbine
A
E
D
cup setup for spray gun
G
H
C
A
X
JK
Z
Y
Z
to
4958C
TI0875
F
compressor
ti7064a
2-quart remote pressure pot
Fig. 3
309242 7
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