Graco Inc. 826000, 826001, 826004 User Manual
OWNER’S MANUAL
Parts
309246
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
System HVLP Turbine Sprayers
120V AC 50/60 Hz
System 2500 Sprayer with Two-Stage Turbine
Model 826000
5 psi (34 kPa, 0.3 bar) Maximum Working Pressure
System 3800 Sprayer with Three-Stage Turbine
Model 826001
6 psi (41 kPa, 0.4 bar) Maximum Working Pressure
Rev. D
System 4900 Sprayer with Four-Stage Turbine
Model 826004
8 psi (55 kPa, 0.5 bar) Maximum Working Pressure
Model descriptions are in Turbine Components Table on page 4.
Related Manuals
System ProCart 309247. . . . . . . . . . . . . . . . . . . . . . . .
HVLP–Turbine Gun 309205. . . . . . . . . . . . . . . . . . . . . . .
7947A
System 4900t Shown
The SHERWIN–WILLIAMS COMPANY, CLEVELAND, OHIO 44115
COPYRIGHT 2000, GRACO INC.
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 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sherwin–Williams Standard Warranty 24. . . . . . . . . . . .
Phone Number 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
Ground the equipment. See Grounding on page 6.
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.
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.
Use additional air hose if necessary to ensure that the turbine is operated in a clean, dry, well
ventilated area.
Never place the turbine inside a spray booth! Use this equipment outdoors or in extremely well
ventilated areas.
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 off any light switch in the spray area while operating or if fumes are present.
Do not operate a gasoline engine in the spray area.
2 309246
INSTRUCTIONS
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 you operate the equipment.
Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
Do not alter or modify this equipment. Use only genuine Graco parts.
Check equipment daily. Repair or replace worn or damaged parts immediately.
Do not exceed the maximum working pressure of the lowest-rated system component.
System 2500 turbine has a working pressure of 5 psi (0.3 bar, 34 kPa).
System 3800 turbine has a working pressure of 6 psi (0.4 bar, 41 kPa).
System 4900 turbine has a working pressure of 8 psi (0.5 bar, 55 kPa).
Use fluids and solvents which are compatible with the equipment wetted parts. See Specifications
on page 23 for wetted parts information.
Do not use hoses to pull equipment.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82C (180F) or below –40C (–40F).
Wear hearing protection when operating this equipment.
Do not lift pressurized equipment.
Comply with all applicable local, state, and national fire, electrical, and safety regulations.
Do not point the gun at anyone or at any part of the body.
Do not put your hand or fingers over the gun fluid nozzle.
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.
Follow the Pressure Relief Procedure on page 10 if the fluid nozzle clogs and before you clean,
check, or service the equipment.
Tighten all fluid connections before you operate the equipment.
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.
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.
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.
309246 3
General Information
System HVLP Turbine Sprayers
The System 2500, 3800, and 4900 Sprayer,
System ProCart, and HVLP–Turbine 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
typically utilizes inbound air pressure of 5 psi (0.3 bar,
34 kPa) for System 2500; 6 psi (0.4 bar, 41 kPa) for
System 3800; and 8 psi (0.5 bar, 55 kPa) for
System 4900. 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 the HVLP–Turbine Gun manual 309205 for more
information on the operation and use of the turbine
spray gun.
Unpacking Turbine Sprayer
Unpack the turbine sprayer from the shipping carton,
and inspect for any possible shipping damage. If there
is any damage, call your distributor.
Turbine Sprayer Configurations
The turbine sprayers come in the following basic
configurations:
System 2500 two-stage HVLP turbine sprayer
System 3800 three-stage HVLP turbine sprayer
System 4900 four-stage HVLP turbine sprayer
System HVLP Turbine Sprayer Components Table
System Model 30-ft (9 m) Hose
2500 826000 241413 244117 non–
3800 826001 241413 244117 non–
4900 826004 241413 244117 non–
Gun /
Fluid Set
bleeder style cup gun/
244124 (#3) fluid set
bleeder style cup gun/
244124 (#3) fluid set
bleeder style cup gun/
244124 (#3) fluid set
Extra/Fluid Sets
none
244125 (#4)
244126 (#5)
244123 (#2)
244125 (#4)
244126 (#5)
244127 (#6)
4 309246
Component Identification and Function
C
B
A
H
G
D
J
K
L
E
F
Fig. 1
A Air outlet Connection for air supply to HVLP–Turbine Guns (System 4900 units
include quick connector)
B Power switch ON/OFF switch for turbine sprayer and rear outlet
C Storage compartment Provides storage for fluid set components
D Handle Folds flat for minimum storage space
E Cover Houses air filter and provides dual air flow to motor and turbine/ can be
lock-mounted on compressor/cart
F Air filters (pre-filter and main) Provide filtered air for HVLP–Turbine Gun and turbine motor
G Two-speed switch Allows two-speed operation of turbine sprayer motor (used on System
4900 units)
H Air filter indicator light Indicates air filter performance and maintenance (used on System
3800 and System 4900 units)
J Connector and power cord Provides power for turbine sprayer (power cord provided with turbine)
K Auxiliary power outlet Switched power outlet for System ProCart or other accessory (used
on System 3800 and System 4900 units)
L Resettable circuit breaker Provides protection for turbine motor and cart
7947A
309246 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
System HVLP Turbine Sprayers have a variety of user
options. See Fig. 3.
See the System ProCart manual 309247 for
information on compressor/cart setup and
operation.
Prepare the Fluid
Always strain the fluid before you spray; this
includes color, reducer, and hardeners if used.
When using a System HVLP Turbine Sprayer use a
slower-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.
See the HVLP–Turbine Gun manual 309205 for
information on gun setup and operation.
6 309246
Setup
Connect the Fluid and Air Supply
See Fig. 3
The System ProCart provides the air supply for
the remote pressure pot.
The circled letters in Fig. 3 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.
The System 4900 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/cart air outlet.
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
K
J
H
to
compressor/
cart
X
G
Y
F
A
B
X
System 4900t Turbine
E
D
cup setup for spray gun
G
H
Y
F
K
J
compressor/
C
A
X
to
cart
21/2-gallon remote pressure pot
Fig. 3
2-quart remote pressure pot
04958
309246 7
Setup
Fill the Cup or Remote Pressure Pot
Spray Gun Cup
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 the gun,
always turn off the air supply to the gun before you
remove the spray gun cup.
Only fill the cup 3/4 full to help keep the air pressure
tube clean, then install the cover. The under-cup cover
has a latch (H) to secure it to the cup. The over-cup (J)
has threads that keep the lid in place when tightened in
place on the cup.
206c
Fig. 5
21/
gallon
2
8069A
113
2 quart
02882A
H
Fig. 4
Accessory Remote Pressure Pot
J
WARNING
The accessory remote pressure pots remain pressurized until pressure is manually relieved. To
reduce the risk of serious injury from pressurized
fluid or accidental spray from the gun, always
relieve pressure in the pressure pot before you
loosen or remove the cover.
1. Relieve remote pressure pot pressure as follows
(see Fig. 5):
a. Turn off air supply to pressure pot.
02845
2. Remove pressure pot cover and fill. Secure cover.
NOTE: 2-quart remote pressure pot only:
Lightly coat the cover threads with petroleum jelly.
CAUTION
If the 2-quart remote pressure pot is accidentally
tipped over or held at too great of an angle, fluid may
leak into the air regulator and cause damage. Take
precautions to avoid this. If fluid does get into the
regulator, clean it immediately.
CAUTION
Do not tighten the pressure pot cover more than
hand-tight. Excessive tightening may damage the
cover gasket.
b. 21/2-gallon remote pressure pot:
Pull pressure relief valve ring (206c) until
pressure is completely relieved.
2-quart remote pressure pot:
Turn out pressure relief knob (113) one turn.
Wait until pressure is completely relieved
before you remove cover. Close knob.
8 309246
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