Graco HVLP Series Operation manual

309205
Rev. D
Cup Feed
Includes 1-quart (1 liter) cup
Model 244113, without fluid set
Model 244117, with # 3 fluid set
T10746
Remote Pressure Feed
Model 244115, without fluid set
Model 244118, with # 3 fluid set
INSTRUCTIONS–PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
US Patent Pending
HVLP–Turbine Guns
10 psi (0.07 MPa, .7 bar) Maximum Inlet Air Pressure
50 psi (0.35 MPa, 3.5 bar) Maximum Inlet Fluid Pressure
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 2000, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
Parts

2 309205
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spraying Techniques 12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 24. . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 24. . . . . . . . . . . . . . . . . . . . . . . . . .
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
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.
DGround the equipment.
DIf 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.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
DWhen 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.
DUse additional air hose if necessary to ensure that the turbine is operated in a clean, dry, well
ventilated area.
DNever place the turbine inside a spray booth! Use this equipment outdoors or in extremely well
ventilated areas.
DKeep the spray area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the spray area.
DExtinguish all open flames or pilot lights in the spray area.
DDo not smoke in the spray area.
DDo not turn on or off any light switch in the spray area while operating or if fumes are present.
DDo not operate a gasoline engine in the spray area.
WARNING WARNING

309205 3
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 not sure, call your distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated system component. See the
Technical Data on page 21.
DUse fluids and solvents that are compatible with the equipment wetted parts. Refer to the Techni-
cal Data on page 21 for wetted parts.
DDo not use hoses to pull equipment.
DRoute 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).
DWear hearing protection when operating this equipment.
DDo not lift pressurized equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.
DDo not point the gun at anyone or at any part of the body.
DFollow the Pressure Relief Procedure on page 11 if the fluid nozzle clogs and before cleaning,
checking or servicing the equipment.
DTighten all fluid connections before operating the equipment.
DCheck the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
WARNINGWARNING
INSTRUCTIONS
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.
DDo 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.

4 309205
Introduction
Features
The Graco HVLP–Turbine Gun features a quick–change fluid set, EasyGlidettrigger and easy–access controls.
One air cap fits all six fluid sets.
Fig. 1
Pattern adjustment knob
Fluid set/needle
Air cap
Duckbill check valve
EasyGlidetTrigger
Air flow control
Fluid flow and pattern size control
Swivel tube
Air inlet
Nut
Cup
Strainer
General Operating Instructions
1. Setup the gun:
a. Adjust the fluid supply (page 5).
b. Establish the correct air flow (page 5).
c. Select the spray pattern and shape (page 6).
d. Select a fluid set (page 7).
2. Prepare the fluid and surface (page 9).
3. Connect the gun to the fluid and air supplies (page
10).
4. Fill the cup or remote pressure pot with fluid you
will be spraying (page 11).
5. Spray (page 12).
6. Clean the gun following the clean–up instructions
(page 14).

309205 5
Setup
Fluid Flow
1. To obtain maximum fluid flow, turn fluid adjustment
knob (21) counterclockwise until the trigger (10)
moves freely. See Fig. 2.
Fig. 2
21
T10746
10
2. For remote pressure pot, hold gun parallel to floor
and adjust fluid pressure at 8 to 10 inch (203 to
254 mm) fluid stream. See Fig. 3.
For 2-quart remote pressure pot:
Set at 4 to 6 psi (0.28 to 0.42 bar).
For 21/2-gallon remote pressure pot:
Set at 8 to 10 psi (0.56 to 0.70 bar).
NOTE: Heavier fluids or longer fluid hoses require
greater pressures.
WARNING
Over-pressurizing the accessory remote pres-
sure pots can cause serious injury. To reduce
the risk, never exceed 50 psi (0.35 MPa,
3.5 bar) Maximum Inlet Fluid Pressure.
Fig. 3 TI0805
8–10 in.
(203–254 mm)
3. If further gun fluid adjustment is needed, turn fluid
adjustment knob (21) clockwise to reduce volume
of fluid output. See Fig. 4.
21
Fig. 4
T10825
Fluid control, adjusts fluid
volume.
+
–
CAUTION
Restricting the trigger and fluid needle travel by
continuously spraying with the fluid adjustment
knob closed (turned clockwise), will cause
accelerated abrasive wear on the fluid needle and
wear on the trigger.
For best results, adjust fluid flow at the pressure
source or use a different size needle/nozzle/air cap
combination.
Air Flow
4. Test spray pattern and atomization while holding
gun about 6 to 8 inches (150 to 200 mm) from test
piece.
5. Air Control Valve (B) on end of the gun controls
both atomizing air and pressure in spray gun cup.
See Fig. 5. Adjust air control valve as needed.
Fig. 5
B
02850
Air control, adjust total
air flow to spray gun.

6 309205
Setup
NOTES:
DControl over-spray mist by using only as much air
as necessary to spray fluid. Lighter fluids require
less air.
DIf atomization is still unacceptable, fluids may be
thinned further or a different fluid set may be re-
quired. Refer to page 8 to determine fluid set or
page 9 to prepare fluid.
Spray Pattern Direction and Shape
The spray pattern and direction are determined by the
pattern selection knob (A) fluid adjustment knob (21)
and air cap (15) positions. See Fig. 6.
Fig. 6
21
T10746
15
A
B
Selecting the Pattern Shape
The Pattern Selection Knob (A) determines the shape
of the spray pattern. To create a round spray pattern,
set the pattern selection knob (A) to RND. To create a
fan pattern, set the pattern selection knob (A) to FAN.
Refer to Fig. 7.
Fig. 7
Pattern selection
knob, adjusts fan
pattern.
Round pattern
Set knob to RND
Vertical pattern
Set knob to FAN
A
Horizontal pattern
Set knob to FAN
TI0825
Adjusting the Pattern
Change the pattern by adjusting the fluid knob (21)
and pattern selection knob (A).
NOTE: Reducing the fluid flow rate or turning the air
knob to RND will reduce the pattern width. Using air
cap 197056 will create a highly productive, wider
pattern. See Fig. 8.
The air control (B) controls the TOTAL air to the pat-
tern and gun. See Fig. 6.
As the fluid flow rate is reduced the pattern becomes
smaller.
Using too much air will cause overspray.
Fig. 8
–
+
TI0812
–
+

309205 7
Setup
Selecting Fluid Sets
The Turbine Spray Gun includes a #3 fluid set, Part
No. 244124. Grooves at the end of the fluid needle
indicate the size of fluid set.
Fluid sets include a nozzle (14a), o–ring (4) and needle
assembly (14b). See Fig. 9.
NOTE: To order other replacement parts for gun, see
parts drawing and list for gun model on page 23.
Fig. 9
fluid set
14b
TI082
4
4
14a
WARNING
Do not exceed the gun’s 50 psi (0.35 MPa,
3.5 bar) Maximum Inlet Fluid Pressure and
10 psi (0.07 MPa, 0.7 bar) Maximum Inlet Air
Pressure. Higher pressures can cause parts to
rupture and result in serious injury or property
damage.
Turbine spray gun fluid sets range in size to provide
different fluid flow rates. Selection charts on page 8
show recommended combinations based on fluid
viscosities, flow rates, and usage.
As a general guideline, use fluid nozzle that will give
required flow with needle fully triggered at lowest fluid
pressure.
For low flow rates or light viscosity fluid, select smaller
nozzle sizes.
For high flow rates or high viscosity fluid, select larger
nozzle sizes.
Graco offers six different fluid sets:
Fluid Set Part Number Orifice Size (inch)
#2 244123 0.032
#3 244124 0.051
#4 244125 0.071
#5 244126 0.087
#6 244127 0.098
#7 244128 0.115

8 309205
Setup
Contractor Fluid Set Chart
Use this chart to determine Fluid Set for specific contractor application. Fig. 10.
Fig. 10
Installing the Fluid Set
CAUTION
Trigger the gun whenever you tighten or remove
the nozzle. This keeps the needle seat away from
the nozzle seating surface and prevents the seat
from being scratched.
Complete spray guns are available with a #3 fluid set.
To install other fluid sets, perform the following steps.
See Fig. 11.
1. Use your hand to loosen and remove the air cap
retaining ring (13) and the air cap housing (15).
2. While triggering the gun, use your hand to loosen
and remove the nozzle (14a) from the gun.
3. Use your hand to loosen and remove the fluid
knob assembly (21) and compression spring (23)
from back of gun and remove the old needle.
4. Insert the needle assembly (14b) into the back of
the gun. Replace the nozzle (14a) air cap housing
(15) and air cap retaining ring and tighten by hand.
NOTE: O–ring (4) should always be on the nozzle.
Fig. 11
13
15 14a
21
23
14b
4TI0816

309205 9
Setup
Preparing to Spray
Paint Reduction — Industrial or Domestic
Coatings
Reduce and catalyze all paint to manufacturer’s
specifications. If no reductions are given, first
thoroughly mix fluid to be sprayed. Gradually mix in
reducer, testing fluid for correct spraying consistency.
Test consistency, remove stir stick from thinned paint.
Consistency is right when first drops from stir stick are
about one second apart.
Prepare the Surface
To achieve proper adhesion, make sure the surface to
be sprayed is completely clean.

10 309205
Setup
Turbine Spray Unit (for more information
see manual 309241)
Connect the Fluid and Air Supply
NOTES:
DThe HVLP Cart/Compressor provides the air supply
for the remote pressure pot.
DCircled letters in Fig. 12 indicate hose line connec-
tions.
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.
See Fig. 12.
2. If using a spray gun cup (D):
Connect cup to gun fluid inlet (E).
If using accessory remote pressure pots (F):
Connect 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).
Fig. 12 8068A
C
D
F
J
J
A
G
G
G
C
A
B
L
E
E
Z
Z
HH
F
K
K
Y
XX
Y
Y
Z
X
21/2-gallon remote pressure pot2-quart remote pressure pot
cup setup
for spray gun