Graco Project Series User manual

For portable spray applications of water-based architectural paints and coatings only.
Not approved for use in explosive atmospheres or hazardous (classified) locations.
Important Safety Instructions
Read all warnings and instructions in this manual before using the equipment. Be
familiar with the controls and the proper usage of the equipment. Save these
instructions.
Important Medical Information
Read the medical alert card provided with the gun. It contains injection injury
treatment information for a doctor. Keep it with you when operating the equipment.
Additional Manual
Languages
3A4702E
EN
Corded Airless
HandHeld Sprayer
Project Series Paint Sprayers
844-241-9499
Owners Manual

Before You Spray
2 3A4702E
Before You Spray
Review Warnings for Important Safety Information
Important! Read carefully and practice good safety habits.
Models
Operating pressure range: 500-2000 psi (35 – 138 bar, 3.5 MPa – 14 MPa)
Operational video
http://graco.com/hhsupport
Model
Sprayer
Name Voltage Tip Family Tip Size
17M359 Ultra
120V
FFLPxxx
0.008 – 0.016 in.
(0.20 – 0.41 mm)
17N162 Ultimate FFLPxxx
17N163 TC Pro TCPxxx
17M360 Ultra 230V
FFLPxxx 0.008 – 0.016 in.
(0.20 – 0.41 mm)
17M362 Ultra 230V
17P255 Ultimate 230V
110474
Certified to
CAN/CSA
C22.2
No. 68
Conforms to
UL 1450

Important User Information
3A4702E 3
Important User Information
Thank You for Your Purchase!
Congratulations! You have purchased a high-quality paint sprayer made by Graco Inc. This
sprayer is designed to provide superior spray performance with water-based and oil-based
(mineral spirit-type) architectural paints and coatings. This user information is intended to help
you understand the types of materials that can be used with your sprayer.
Please read the information on the material container label to determine if it can be used with
your sprayer. Ask for a Safety Data Sheet (SDS) from your supplier. The container label and
SDS will explain the contents of the material and the specific precautions related to it.
Paints, coatings and clean-up materials generally fit
into one of the following 2 basic categories:
WATER-BASED: The container label should indicate that the material can be
cleaned up with soap and water. Your sprayer is compatible with this type of
material. Your sprayer is NOT compatible with harsh cleaners such as chlorine
bleach.
FLAMMABLE: This type of material contains flammable solvents such as xylene,
toluene, naphtha, MEK, lacquer thinner, acetone, denatured alcohol, and
turpentine. The container label should indicate that this material is
FLAMMABLE. This type of material is NOT compatible with your sprayer
and CANNOT be used.
NOTICE
Your sprayer is NOT compatible with harsh
cleaners such as chlorine bleach. Using
these cleaners will cause damage to the
sprayer.

Contents
4 3A4702E
Contents
Before You Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Know Your Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Know Your Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Sprayer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Tip Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Spray Tip Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Spray Pattern Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Spray Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Aiming Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Triggering Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Reversible Spray Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Clear Tip Clogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Spray Tip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cup Refills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pause in Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cleaning Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning Fluid Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 25
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Cleaning Outlet Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Recycling and Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
End of Product Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
End of Life Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Warnings
3A4702E 5
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this
equipment. The exclamation point symbol alerts you to a general warning and the hazard
symbols refer to procedure-specific risks. When these symbols appear in the body of this
manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols
and warnings not covered in this section may appear throughout the body of this manual where
applicable.
GROUNDING INSTRUCTIONS
This product must be grounded. In the event of an electrical short circuit, grounding
reduces the risk of electric shock by providing an escape wire for the electric current.
This product is equipped with a cord having a grounding wire with an appropriate
grounding plug. The plug must be plugged into an outlet that is properly installed
and grounded in accordance with all local codes and regulations.
•Improper installation of the grounding plug is able to result in a risk of electric
shock.
•This product is for use on a nominal 230 V circuit and has a grounding plug
similar to the plugs illustrated in the figure below.
•Only connect the product to an outlet having the same configuration as the
plug.
•Do not modify the plug provided. If it does not fit the outlet, have the proper
outlet installed by a qualified electrician.
•Do not use a 3-to-2 adapter with this product.
•When repair or replacement of the cord or plug is required, do not connect the
grounding wire to either power terminal.
•The wire with insulation having an outer surface that is green with or without
yellow stripes is the grounding wire.
•Check with a qualified electrician or serviceman when the grounding
instructions are not completely understood, or when in doubt as to whether the
product is properly grounded.
Extension Cords:
•Use only a 3-wire extension cord that has a grounding plug and a grounding
receptacle that accepts the plug on the product.
•Make sure your extension cord is not damaged.
•If an extension cord is necessary, use 14 AWG (2.5 mm2) minimum to carry the
current that the product draws. An undersized cord results in a drop in line
voltage and loss of power and overheating.
ti24583b
230V 230V ANZ

Warnings
6 3A4702E
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:
•Do not spray or clean with materials having flash points lower than 100°F (38°C).
Use only non-flammable or water-based materials, or non-flammable paint
thinners. For complete information about your material, request the Safety Data
Sheets (SDSs) from the material distributor or retailer.
•Do not spray combustible materials near an open flame or sources of ignition
such as cigarettes, motors, and electrical equipment.
•Paint or solvent flowing through the equipment is able to result in static
electricity. Static electricity creates a risk of fire or explosion in the presence of
paint or solvent fumes. All parts of the spray system, including the sprayer and
objects in and around the spray area shall be properly grounded to protect
against static discharge and sparks.
•Verify that all containers and collection systems are grounded to prevent static
discharge. Do not use pail liners unless they are anti-static or conductive.
•Connect to a grounded outlet and use grounded extensions cords. Do not use
a 3-to-2 adapter.
•Stop operation immediately if static sparking occurs or you feel a shock. Do
not use equipment until you identify and correct the problem.
•Do not use a paint or a solvent containing halogenated hydrocarbons.
•Keep spray area well-ventilated. Keep a good supply of fresh air moving
through the area.
•Sprayer generates sparks. Keep pump assembly in a well-ventilated when
spraying, flushing, cleaning, or servicing.
•Do not smoke in the spray area or spray where sparks or flame is present.
•Do not operate light switches, engines, or similar spark producing products in
the spray area.
•Keep area clean and free of paint or solvent containers, rags, and other
flammable materials.
•Know the contents of the paints and solvents being sprayed. Read all Safety
Data Sheets (SDSs) and container labels provided with the paints and solvents.
Follow the paint and solvent manufacturer's safety instructions.
•Keep a working fire extinguisher in the work area.
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the
system can cause electric shock.
•Turn off and disconnect power cord before servicing equipment.
•Connect only to grounded electrical outlets.
•Use only 3-wire extension cords.
•Ensure ground prongs are intact on power and extension cords.
•Do not expose to rain. Store indoors.

Warnings
3A4702E 7
SKIN INJECTION HAZARD
High-pressure spray is able to inject toxins into the body and cause serious injury
that can result in amputation. In the event that injection occurs, get immediate
surgical treatment.
•Do not aim the gun at, or spray any person or animal.
•Keep hands and other body parts away from the discharge. For example, do not
try to stop leaks with any part of the body.
•Always use the spray tip guard. Do not spray without spray tip guard in place.
•Use Graco spray tips.
•Use caution when cleaning and changing spray tips. In the case where the spray
tip clogs while spraying, follow the Pressure Relief Procedure for turning off
the unit and relieving the pressure before removing the spray tip to clean.
•Equipment maintains pressure after power is shut off. Do not leave the
equipment energized or under pressure while unattended. Follow the Pressure
Relief Procedure when the equipment is unattended or not in use, and before
servicing, cleaning, or removing parts.
•Check parts for signs of damage. Replace any damaged parts.
•This system is capable of producing 2000 psi (138 bar, 13.8 MPa). Use Graco
parts or accessories that are rated a minimum of 2000 psi (138 bar, 13.8 MPa).
•Verify that all connections are secure before operating the unit.
•Know how to stop the unit and bleed pressure quickly. Be thoroughly familiar
with the controls.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•Always wear appropriate gloves, eye protection, and a respirator or mask when
painting.
•Do not operate or spray near children. Keep children away from equipment at
all times.
•Do not overreach or stand on an unstable support. Keep effective footing and
balance at all times.
•Stay alert and watch what you are doing.
•Do not operate the unit when fatigued or under the influence of drugs or alcohol.
•Do not alter or modify equipment. Alterations or modifications may void agency
approvals and create safety hazards.
•Make sure all equipment is rated and approved for the environment in which you
are using it.

Warnings
8 3A4702E
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can
cause serious chemical reaction and equipment rupture. Failure to follow this
warning can result in death, serious injury, or property damage.
•Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated
hydrocarbon solvents or fluids containing such solvents.
•Do not use chlorine bleach.
•Many other fluids may contain chemicals that can react with aluminum. Contact
your material supplier for compatibility.
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 swallowed.
•Read Safety Data Sheets (SDSs) 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.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent
serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and
burns. Protective equipment includes but is not limited to:
•Protective eyewear, and hearing protection.
•Respirators, protective clothing, and gloves as recommended by the fluid and
solvent manufacturer.

Know Your Sprayer
3A4702E 9
Know Your Sprayer
A Spray Tip
BPrime Knob
C Spray Tip Guard
DCup Lid
EFlexLinerTM
F Cup Support
G Pump Filter
HVacuValve TM
J Power Cord
K Speed Control
L Diagnostic Light
M Strainer
N Funnel
P Strainer’s Air Tube
R Trigger

Know Your Controls
10 3A4702E
Know Your Controls
Prime Knob
The Prime Knob directs fluid to either the cup
or the Spray Tip. When priming, it is used to
purge air from the pump. Your sprayer will
not spray with air in the pump.
Turn Prime Knob down to PRIME position
when priming the sprayer or to relieve
system pressure.
Turn Prime Knob forward to SPRAY position
to spray fluid.
VacuValve
The VacuValve is used to evacuate air out of
the FlexLiner. This is necessary for the
sprayer to prime.
Spray Tip
The Spray Tip is the key to airless spray
technology. High pressure paint pumped
through the very small hole in the Spray Tip
comes out as a spray.
The Spray Tip has the ability to be reversed
and quickly clear clogs.
Trigger
The Trigger controls the operation of the
sprayer.
Speed Control
The Speed Control allows you to slow down
or speed up when spraying.

Setup
3A4702E 11
Setup
Pressure Relief Procedure
1. Turn Prime Knob down to PRIME position
to relieve pressure .
Sprayer Setup
1. Insert one FlexLiner into the Cup
Support.
NOTE: Verify there is no damage to the top
sealing edge of the FlexLiner, such as a
crease or fold. If damaged it will leak air and
lose prime.
This sprayer builds up an internal
pressure of 2000 psi (138 bar, 13.8 MPa)
during use. Follow this Pressure Relief
Procedure whenever you stop spraying
and before cleaning, checking, servicing,
or transporting equipment to prevent
serious injury from pressurized fluid.
Use only water-based materials. Do not
use materials which state “FLAMMABLE”
on the packaging. For more information
about your material, request a Safety Data
Sheet (SDS) from distributor or retailer.
Keep spray area well-ventilated. Keep a
good supply of fresh air moving through
the area.

Setup
12 3A4702E
2. Firmly tighten the Cup Lid onto the Cup
Support to ensure an airtight seal.
NOTE: To ensure an airtight seal, the gasket
inside the Cup Lid is lubricated by the factory.
If lubrication has washed away, apply Seal
Lube (included) to the gasket.
3. Insert the Funnel into the Cup Lid, twist
to lock. Snap the Strainer into the Funnel
to strain your paint as you fill your cup.
4. The Strainer’s Air Tube will prevent paint
from overfilling the cup. Fill the cup as
follows:
a. Watching the Funnel (not the cup),
slowly pour paint into the Funnel.
When the paint stops draining
down, the cup is full.
NOTE: If the paint stops draining but you see
the cup is not full, use a stir stick to scrape
the captured debris on the top of the Strainer
until the paint resumes draining.
b. With the Funnel and Strainer still
attached to the cup, pour excess
paint from the Funnel back into the
paint can.
Funnel Strainer

Setup
3A4702E 13
c. Lift up the Strainer and look to
verify you can see crossbars in the
bottom of the Funnel. If not, the
cup is overfilled. Pour excess paint
back into the paint can.
d. Remove the Funnel and Strainer
from the cup and hook on edge of
paint can.

Startup
14 3A4702E
Startup
1. Install the cup onto the sprayer as
follows:
a. Verify Pump Filter is installed and
clean.
b. Align VacuValve (on Cup Lid) with
Prime Knob (on sprayer).
c. Push cup assembly onto the
sprayer, twist to lock.
2. Prime the pump as follows:
a. Verify Prime Knob is pointed down
to PRIME position.
b. Plug sprayer into a grounded
power source.
c. Open the VacuValve cap and
gently squeeze the FlexLiner until
no more air bubbles appear in the
VacuValve.
NOTE: Tilt the sprayer such that the
VacuValve is the highest point so that all air
in the FlexLiner can be fully evacuated.

Startup
3A4702E 15
d. Continue to squeeze the FlexLiner
while pulling the Trigger for 10
seconds.
NOTE: This will purge all air from the pump
and cup. Paint will not spray out, but will
recirculate through the pump and back into
the cup.
e. When no more air bubbles appear
in the VacuValve, release the
Trigger and close the VacuValve
cap.
3. Turn Prime Knob forward to SPRAY
position. Verify Spray Tip is forward in
the SPRAY position.
4. Point the sprayer into a waste pail and
pull the Trigger for 5 seconds to spray
out storage fluid.
•To avoid pump damage, if the
sprayer does not spray after 5
seconds, STOP and repeat
STARTUP.
You are now ready to spray!
NOTE: For best results, to evacuate all
material from the FlexLiner when the material
is nearly gone, gently squeeze the bottom of
the FlexLiner to push the last of the material
up to the Cup Lid.
IMPORTANT! The motor has a built-in
feature to protect itself from overuse. If the
motor stops, the thermal switch has tripped.
The motor will operate normally after cooling
for 20-30 minutes.

Spraying
16 3A4702E
Spraying
1. Set Speed Control to lowest setting.
2. Pointing at a piece of scrap cardboard,
pull the Trigger to test the spray pattern.
3. If needed, slowly increase the Speed
Control to the setting that produces a
good spray pattern.
NOTE: To minimize overspray, always spray
at the lowest speed setting that gives a good
spray pattern.
4. Adjust the sprayer’s distance from the
surface and your hand speed to achieve
the desired surface coverage.
NOTE: For proper sprayer operation use only
a tip from the same tip family that came with
your sprayer.
Tip Selection Chart
See table for recommended spray pressure for your material. Refer to paint (material) can for
manufacturer’s recommendations.
Use only water-based materials. Do not
use materials which state “FLAMMABLE”
on the packaging. For more information
about your material, request a Safety Data
Sheet (SDS) from distributor or retailer.
Keep spray area well-ventilated. Keep a
good supply of fresh air moving through
the area.
Sprayer Name Tip Family Tip Part No.
Ultra FFLP FFLPxxx
Ultimate FFLP FFLPxxx
TC Pro TCP TCPxxx
Coatings
Interior
Stains/
Interior &
Exterior
Clears
Exterior
Solid
Stains Enamels Primers
Interior
Latex
Paints
Exterior
Latex
Paints
Filter
Color
Speed Control 1 – 5 6 – 10 6 – 10 6 – 10 6 – 10 6 – 10
Tip hole Size
0.008 in. (0.20 mm) ✓Blue
0.010 in. (0.25 mm) ✓ ✓ Blue
0.012 in. (0.30 mm) ✓ ✓ Blue
0.014 in. (0.36 mm) ✓ ✓ ✓ ✓ Black
0.016 in. (0.41 mm) ✓ ✓ ✓ ✓ Black

Spraying
3A4702E 17
Spray Tip Orientation
Adjust the Spray Tip Guard for the desired
vertical or horizontal spraying direction.
Spray Pattern Quality
A good spray pattern is evenly distributed
without voids or runs. Adjust sprayer Speed
Control, hand speed, and distance from the
wall to get a good spray pattern.
If tails persist, material may need to be
thinned. If material needs to be thinned,
follow manufacturers recommendations.
Spray Angle
Use a piece of scrap cardboard to practice
these basic spraying techniques before you
begin spraying the surface.
•Hold sprayer 10-12 inches (25-30 cm)
from surface and aim straight at surface.
Tilting the sprayer to direct the spray
angle causes an uneven finish.
To avoid serious injury from skin injection,
do not put your hand in front of the Spray
Tip or Spray Tip Guard.
NO YES

Spraying
18 3A4702E
•Flex wrist to keep sprayer pointed
straight. Fanning sprayer to direct spray
at angle causes uneven finish.
NOTE: How fast you move the sprayer will
affect spray application. If material is
pulsating, you are moving too fast. If material
drips, you are moving too slow. See
Troubleshooting, page 28.
Aiming Sprayer
Aim the sprayer at the bottom edge of the
previous stroke, overlapping each stroke by
50%.
Triggering Timing
Pull Trigger after starting stroke. Release
Trigger before end of stroke. Sprayer must
be moving when Trigger is pulled and
released.
Reversible Spray Tips
Your sprayer is compatible with wide and
narrow reversible Spray Tips.
•0.014 & Larger Spray Tips are for
spraying paint and should be used
with the black Pump Filter.
•0.012 & Smaller Spray Tips are for
spraying stain and should be used
with the blue Pump Filter.
Not all tips and filters are included with all
models.

Spraying
3A4702E 19
Clear Tip Clogs
In the event debris clogs the Spray Tip, the
sprayer is designed with a reversible Spray
Tip that quickly and easily clears the particles
without disassembling the sprayer.
1. Perform Pressure Relief Procedure,
page 11.
2. Reverse Spray Tip to UNCLOG position.
3. Set Speed Control to highest setting.
4. Point sprayer into waste pail, turn Prime
Knob forward to SPRAY position. Pull
Trigger for 5 seconds to clear clog.
NOTE: If Spray Tip is still clogged, you may
have to repeat steps 1-4, or replace with
replacement Spray Tip.
5. Turn Prime Knob downward to PRIME
position. Rotate Spray Tip back to
SPRAY position. Turn Prime Knob
forward to SPRAY position, and resume
spraying.
To avoid serious injury from skin injection,
do not put your hand in front of the Spray
Tip or Spray Tip Guard.

Spraying
20 3A4702E
Spray Tip Installation
To prevent Spray Tip leaks, make certain
Spray Tip and Spray Tip Guard are installed
properly.
1. Perform Pressure Relief Procedure,
page 11.
2. Unplug the Power Cord.
3. Use Spray Tip (A) to insert seal (B) into
Spray Tip Guard (C).
4. Insert Spray Tip. Spray Tip must be
pushed all the way into the Spray Tip
Guard.
5. Screw Spray Tip Guard assembly onto
the sprayer and hand tighten.
•Spray Tips wear with use and abrasive
paint and need periodic replacement.
•If the spray pattern is poor, you may
have a worn Spray Tip. Replace Spray
Tip. See Spray Pattern Diagnostics,
page 31.
To avoid serious injury from skin injection
do not put your hand in front of the Spray
Tip when installing or removing the Spray
Tip and Spray Tip Guard.
NOTICE
Spray Tips must be cleaned or stored in
appropriate cleaning fluid (water or
mineral spirits) immediately after use to
ensure material is not allowed to dry in
Spray Tip. Failure to do so will result in
damage to the Spray Tip. See Cleanup,
page 22.