Graco Project Painter Plus 257025 Operation Manual

Operation

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Project Painter Plus

Patent Pending

- For portable spray applications of architectural paints and coatings -

(Specifications, page 9.)

IMPORTANT SAFETY INSTRUCTIONS

Read all warnings and instructions in this manual
and on the sprayer cord. Save these instructions.
See page 9 for model series information including
dispense rate, recommended hose length, guns,
and maximum working pressure.

Project Painter Plus
Model 257025

3A0248C

EN

Use water-based or mineral spirit-type materials only.
Do not use materials having flash points lower than 70°
F (21° C). This includes, but is not limited to, acetone,
xylene, toluene, or naptha. For more information about
your material, request MSDS from distributor or retailer.

If you need additional assistance or if you are having problems with the
sprayer, contact the GRACO PRODUCT HELPLINE at 888-541-9788.

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Warnings

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 symbol refers to procedure-specific risks. Refer back to
these warnings. Additional, product-specific warnings may be found 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 ordinances.

WARNING

GROUNDING

• Improper installation of the grounding plug is able to result in a risk of electric shock.

• When repair or replacement of the cord or plug is required, do not connect the grounding wire to
either flat blade 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.

• Do not modify the plug provided; if it does not fit the outlet, have the proper outlet installed by a qual­ified electrician.

• This product is for use on a nominal 120V circuit and has a grounding plug similar to the plug illus­trated in the figure below.

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• Only connect the product to an outlet having the same configuration as the plug.

• Do not use an adapter with this product.

Extension Cords:

• Use only a 3-wire extension cord that has a 3-blade grounding plug and a 3-slot receptacle that
accepts the plug on the product.

• Make sure your extension cord is not damaged. If an extension cord is necessary, use 12 AWG

(2.5 mm

An undersized cord results in a drop in line voltage and loss of power and overheating.

2 3A0248C

2

) minimum to carry the current that the product draws.

Warnings

WARNING

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 flammable or combustible materials near an open flame or sources of ignition such as
cigarettes, motors, and electrical equipment. Only use water-based or mineral spirit-type materials
with a flash point greater than 70° F (21° C).

• 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 pump, hose assembly, spray gun, and objects in and around the spray area shall
be properly grounded to protect against static discharge and sparks. Use conductive or grounded
high-pressure airless paint sprayer hoses.

• Verify that all containers and collection systems are grounded to prevent static discharge.

• Connect to a grounded outlet and use grounded extensions cords. Do not use a 3-to-2 adapter.

• 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. Keep
pump assembly in a well ventilated area. Do not spray pump assembly.

• Do not smoke in the spray area.

• 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 Material Safety Data Sheets
(MSDS) and container labels provided with the paints and solvents. Follow the paint and solvents
manufacturer’s safety instructions.

• Fire extinguisher equipment shall be present and working.

• Sprayer generates sparks. When flammable liquid is used in or near the sprayer or for flushing or
cleaning, keep sprayer at least 20 feet (6 m) away from explosive vapors.

SKIN INJECTION HAZARD

• 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 nozzle tip guard. Do not spray without nozzle tip guard in place.

• Use nozzle tips.

• Use caution when cleaning and changing nozzle tips. In the case where the nozzle tip clogs while
spraying, follow the Pressure Relief Procedure for turning off the unit and relieving the pressure
before removing the nozzle tip to clean.

• Do not leave the unit energized or under pressure while unattended. When the unit is not in use, turn
off the unit and follow the Pressure Relief Procedure for turning off the unit.

• High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event
that injection occurs, get immediate surgical treatment.

• Check hoses and parts for signs of damage. Replace any damaged hoses or parts.

• This system is capable of producing 2800 psi. Use replacement parts or accessories that are rated a
minimum of 2800 psi.

• Always engage the trigger lock when not spraying. Verify the trigger lock is functioning properly.

• 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.

3A0248C 3

Warnings

WARNING

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 kink or over-bend the hose.

• Do not expose the hose to temperatures or to pressures in excess of those specified by
manufacturer.

• Do not use the hose as a strength member to pull or lift the equipment.

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.

• Do not expose to rain. Store indoors.

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.

MOVING PARTS HAZARD

Moving parts can pinch or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.

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 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.

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 eye wear

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

•Gloves

• Hearing protection

4 3A0248C

Warnings

SETUP

QUICK START-UP GUIDE

WARNING

1

Remove spray tip and guard from gun.

FLUSHING

1

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Turn Pressure Control Knob left (counter­clockwise) to minimum pressure.

4

2

Connect hose to gun and sprayer.

2

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Lift Spray/Prime valve to PRIME.

5

3

OFF

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Turn Power Switch OFF. Plug sprayer
into grounded outlet.

3

WASTE

Unclip small drain tube from large suction
tube and place into waste pail.

6

WATER or
SOLVENT

If spraying oil-based materials,* sub­merge suction tube in paint thinner or
compatible oil-based cleaning solution.

If spraying water-based materials, sub­merge suction tube in water.

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Turn Power switch ON. With Spray/Prime
valve still at PRIME, turn Pressure Con­trol Knob to right (clockwise) until pump
starts.

WASTE

Allow fluid to flow out of prime tube, into
waste pail, for 30 to 60 seconds. turn
power switch OFF.

WATER or

SOLVENT

3A0248C 5

PRIMING

Warnings

QUICK START-UP GUIDE

1

WASTE

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Submerge suction tube in paint. Turn power
switch ON, and trigger gun into waste pail.
When paint comes out of drain tube, lower
prime/spray valve to SPRAY.

SPRAYING

1

Put trigger safety lever in SAFETY ON
position.

4

2

WASTE

When paint comes out of gun, release trig­ger. Pump will build up pressure, and
motor will stop.

2

Install tip and guard on gun, and hand
tighten. Your are now ready to spray.

5

3

PAINT

Transfer drain tube to paint pail.

3

If tip clog occurs, this spray tip
reverses, enabling you to quickly
clear obstructions without disassem­bly.

Turn Pressure Control Knob right (clock­wise) to increase pressure at the gun, and
turn it left (counterclockwise) to decrease
the pressure.

6 3A0248C

BAD PATTERN

Point Gun at surface to be sprayed about 12 in. (304 mm) away from surface, and
begin moving the gun before you trigger it. A good spray pattern is evenly distrib­uted as it hits the surface. Set the pressure so it is just high enough to spray with­out “tails”. If tails persist at the highest pressure, a smaller tip is needed to spray
the material or material may need to be thinned.

GOOD PATTERN

Warnings

QUICK START-UP GUIDE

WARNING

SHUTDOWN AND CLEANING - WATER-BASED PAINTS*

1

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Turn power switch OFF. Place suction tube
and drain tube into empty waste pail. Lift
spray/prime valve to PRIME to relieve fluid
pressure.

4

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Open

Unscrew inlet screen from suction tube.
Thread power flush attachment onto suction
tube.

WASTE

6

2

With the trigger safety ON, remove tip and
guard from gun and place into waste pail
for further cleaning.

3

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WASTE

Thread power flush attachment onto
garden hose. Rinse paint off of suc­tion tube, drain tube and inlet screen.

5

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WASTE

Open

PAINT

Trigger gun into paint pail and lower spray/prime valve to SPRAY. Turn power
switch ON to push paint in hose into paint pail. When water comes out of the gun,
keep gun triggered and move aim of gun into waste pail.

7

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WASTE

Open

Trigger gun into waste pail for 1-2 minutes
until relatively clear water comes out of gun.

3A0248C 7

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Open

WASTE

Lift prime/spray valve to PRIME. Let water flow through the sprayer and into waste
pail for 20 seconds.

QUICK START-UP GUIDE

SHUTDOWN AND CLEANING - WATER-BASED PAINTS*

Warnings

8

OFF

Turn power switch OFF. Remove power
flush attachment from suction tube.

9

Clean tip, guard and inlet screen with a brush. Remove filter from spray gun, and
clean with a brush. Reassemble spray gun guard/tip and filter.

10

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Submerge suction tube and drain tube in storage fluid. Always use Graco pump armor
or mineral spirits/paint thinner for storage fluid. Lift spray/prime valve to PRIME. Turn
power switch ON.

12

WASTE

13

11

Turn pressure control knob to right
(clockwise) until pump starts.

14

OFF

WASTE

When storage fluid comes out of drain tube,
turn power switch OFF.

8 3A0248C

Lower prime/spray valve to SPRAY.

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Install inlet screen on suction tube for
storage.

Specifications

Specifications

This equipment is not intended for use with flammable or combustible materials used in places such as cabinet
shops or other “factory”, or fixed locations. If you intend to use this equipment in this type of application, you must
comply with NFPA 33 and OSHA requirements for the use of flammable and combustible materials.

Maximum

Model Name Series

Dispense
Rate gpm

(lpm)

Hose Length

and Diameter

Maximum

Hose Length

Gun

Model

Working

Pressure

PSI MPa bar

Project

Painter Plus

A

0.24 gpm

(0.91 lpm)

1/4 in. x 25 ft

(6.4 mm x 7.5 m)

50 ft (15 m) SG2 2800 19 193

3A0248C 9

Installation

Installation

Grounding and Electric
Requirements

Sprayer must be grounded. Grounding reduces the risk

of static and electric shock by providing an escape wire
for electrical current due to static build up or in the event
of a short circuit.

• The 120 Vac sprayers
require a 120 Vac, 60
Hz, 15A circuit with a
grounding receptacle.

• Never use an outlet
that is not grounded
or an adapter.

• Do not use the sprayer if the
electrical cord has a damaged
ground prong.

• Only use an extension cord with
an undamaged 3-prong plug.

Recommended extension cords
for use with this sprayer:

• 50 ft (15.0 m) 14 AWG (2.1 mm

• 100 ft (30.0 m) 12 AWG (3.3 mm

Spray gun

grounded fluid hose and pump.

: ground through connection to a properly

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2

)

2

)

Fluid supply container

Solvent pails used when flushing

Use only conductive metal pails, placed on a grounded
surface such as concrete. Do not place the pail on a
nonconductive surface, such as paper or cardboard,
which interrupts grounding continuity.

Grounding the metal pail

pail by clamping one end to pail and other end to ground
such as a water pipe.

Maintaining grounding conti­nuity when flushing or reliev­ing pressure: hold metal part of

the spray gun firmly to the side
of a grounded metal pail, then
trigger the gun.

: follow local code.

: follow local code.

: connect a ground wire to the

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Thermal Overload

Motor has a thermal overload switch to shut itself down
if overheated. If unit overheats, allow approximately 45
minutes for unit to cool. Once cool, switch will close and
unit will restart.

To reduce risk of injury from motor starting unex­pectedly when it cools, always turn power switch
OFF if motor shuts down.

NOTE: Smaller gauge or longer extension cords may
reduce sprayer performance.

10 3A0248C

Notes

Notes

3A0248C 11

Component Identification - Project Painter Plus

Component Identification - Project Painter Plus

A Airless spray gun Dispenses fluid.

B Power switch Turns sprayer ON and OFF.

C Pressure control knob

C1 Setting Indicator

D Pump fluid outlet fitting Threaded connection for paint hose.

G Suction tube Draws fluid from paint pail into pump.

H Prime tube (with diffuser) Drains fluid in system during priming and pressure relief.

J Prime/Spray valve

L Inlet screen Prevents debris from entering pump.

M Paint hose Transports high-pressure fluid from pump to spray gun.

N Handle Used to help transport sprayer.

Q Tip guard Reduces risk of fluid injection injury.

R Reversible spray tip

Gun trigger safety lever

S

(page 14)

T Gun fluid inlet fitting Threaded connection for paint hose.

U Power Flush attachment

V Gun fluid filter Filters fluid entering spray gun to reduce tip clogs.

W Pail Hook Holds material pail.

X Power Cord Supplies Project Painter Plus with electricity.

Increases (clockwise) and decreases (counter-clockwise) fluid pressure in
pump, hose, and spray gun.

To select function, align symbol on pressure control knob with setting
indicator, page 14.

• In PRIME position directs fluid to prime tube.

• In SPRAY position directs pressurized fluid to paint hose.

• Automatically relieves system pressure in overpressure situations.

• Atomizes fluid being sprayed, forms spray pattern and controls fluid flow
according to hole size.

• Reverse unclogs plugged tips without disassembly.

Prevents accidental triggering of spray gun.

Connects garden hose to suction tube for power flushing water-base
fluids.

12 3A0248C

Component Identification - Project Painter Plus

Project Painter Plus

C1

J

C

W

R

N

Q

B

H

S

V

T

X

G

A

3A0248C 13

L

M

D

U

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Operation

Trigger Lock

Operation

2. Lift prime/spray valve to PRIME to relieve pressure.

Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.

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Trigger Locked

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Trigger Unlocked

Pressure Relief Procedure

Follow this Pressure Relief Procedure whenever you
stop spraying and before cleaning, checking, servicing,
or transporting equipment.

1. Turn power switch OFF and unplug power cord.

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3. Hold gun firmly to side of pail. Trigger the gun to
relieve pressure.

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4. Engage trigger lock.

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NOTE: Leave prime/spray valve in the PRIME position
until you are ready to spray again.

If you suspect the spray tip or hose is clogged or that
pressure has not been fully relieved after following the
steps above, VERY SLOWLY loosen tip guard retaining
nut or hose end coupling to relieve pressure gradually,
then loosen completely. Clear hose or tip obstruction.
Read Unclogging Spray Tip, page 18.

Pressure Control Knob Settings

High Pressure

Spray

NOTE: To select function, align symbol on pressure control knob with setting indicator on sprayer.

14 3A0248C

Low Pressure

Spray

Prime/

Clean

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Rolling

Setup

Setup

1. Unscrew tip and guard assembly from gun.

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2. Uncoil hose and connect one end to gun. Use two
wrenches to tighten securely.

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3. Connect other end of hose to sprayer.

NOTE: If hose is already connected, make sure
connections are tight.

4. Turn OFF power switch.

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5. Turn Pressure Control Knob all the way left (coun­ter-clockwise) to minimum pressure.

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3A0248C 15

Prime and Flush Storage Fluid

Setup

NOTE: These units are not intended for lacquers.

Before you use your sprayer for the first time or begin a
new spraying project, you need to prime the sprayer and
flush the storage fluid out of the sprayer.

Oil- or Water-based Materials

• When spraying water-based materials, flush the system

thoroughly with water.

• When spraying oil-based materials, flush the system

thoroughly with mineral spirits or compatible, oil-based
flushing solvent.

• To spray water-based materials after spraying
oil-based materials, flush the system thoroughly with
water first. The water flowing out of prime tube should be
clear and solvent-free before you begin spraying the
water-based material.

• To spray oil-based materials after spraying
water-based materials, flush the system thoroughly with
mineral spirits or a compatible oil-based flushing solvent
first. The solvent flowing out of the prime tube should not
contain any water.

• When flushing with solvents, ground pail and gun. Read
Grounding and Electric Requirements, page 10.

• To avoid fluid splashing back on your skin or into your
eyes, always aim gun at inside wall of pail.

3. Place prime tube in waste pail.

WASTE

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4. Submerge suction tube in water or flushing solvent.

WATER or
SOLVENT

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5. Lift prime/spray valve to PRIME.

1. Make sure the power switch is OFF and the sprayer
is unplugged.

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2. Separate prime tube (smaller) from suction tube
(larger).

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6. Plug sprayer in a grounded outlet.

7. Turn power switch ON.

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8. Align setting indicator with prime/clean setting on
pressure control knob until pump starts, page 14.

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9. When sprayer starts pumping, flushing solvent and
air bubbles will be purged from system. Allow fluid
to flow out of prime tube, into waste pail, for 30 to 60
seconds.

16 3A0248C

10. Turn power switch OFF.

Setup

11. Transfer suction tube to paint pail and submerge
suction tube in paint.

PAINT

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12. Turn power switch ON.

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• Motor stopping indicates pump and hose are
primed with paint.

• If motor continues to run the sprayer is not
properly primed. To reprime repeat step 8.

Install Tip and Guard on Gun

1. Engage trigger lock.

13. When you see paint coming out of prime tube:

a. Point gun into waste pail.

b. Unlock gun trigger lock.

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c. Pull and hold gun trigger.

d. Lower Prime/Spray valve to SPRAY.

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14. Continue to trigger gun into waste pail until you see
only paint coming out of gun.

15. Release trigger. Engage trigger lock.

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2. Verify tip and guard parts are assembled in order
shown.

retaining nut

black rubber gasket and

metal seat

guard

Use tip to align seat
in guard

tip

Tip must be pushed
all the way into guard

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3. Screw tip and guard assembly on gun. Tighten
retaining nut.

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16. Transfer prime tube to paint pail and clip prime tube
to suction tube.

3A0248C 17

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Setup

Spraying Techniques

Preventing Excessive Tip Wear

• Spray should be atomized (evenly distributed, no
gaps at edges). Start at low pressure setting,
increase pressure a little at a time until you see a
good spray pattern, without tails.

• Spray at lowest pressure that atomizes paint.

• If maximum sprayer pressure is not enough for a
good spray pattern, tip is too worn. See Reversible
Spray Tip Selection Chart, page 19.

tails-gaps

at edges

pressure
too low

good
spray pattern

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Unclogging Spray Tip

To avoid fluid splashback:

• Never pull gun trigger when arrow-shaped handle is
between SPRAY and UNCLOG positions.

• Tip must be pushed all the way into guard.

1. To unclog tip obstruction, engage trigger lock.

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2. Point arrow-shaped handle backward to unclog
position.

NOTE: If tails persist when spraying at the highest
pressure, a smaller tip is needed or the material
may need to be thinned.

Adjust Spray Pressure

This sprayer is set up for most airless spraying applica­tions. Details on tip selection, tip wear, coat thickness,
etc. are provided on page 19.

NOTE: Motor only runs when gun is triggered. Sprayer
is designed to stop pumping when gun trigger is
released.

Align setting indicator with function symbol on Pressure
Control knob, page 14.

• Turning knob to right (clockwise), increases pres­sure at gun.

• Turning it left (counter-clockwise), decreases pres­sure.

• General spraying instructions are provided in Get­ting Started with Basic Spraying Techniques section
of this manual, page 20.

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3. Aim gun at piece of scrap or cardboard.

4. Unlock trigger lock. Pull trigger to clear clog.

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5. When obstruction is cleared, engage trigger lock
and rotate arrow-shaped handle back to SPRAY
position.

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Point the arrow-shaped handle on the spray tip
forward to SPRAY and backward to UNCLOG
obstructions.

18 3A0248C

Setup

Tip Selection

Selecting Tip Hole Size

Tips come in a variety of hole sizes for spraying a range
of fluids. Your sprayer includes an 0.015 in (0.38 mm) tip
for use in most spraying applications. Use the following
table to determine the range of recommended tip hole
sizes for each fluid type. If you need a tip other than the
one supplied, see the Tip Selection Chart below.

Tip Hole Size Stains Enamels Primers Interior Paints Exterior Paints

0.011 in. (0.28 mm)

0.013 in. (0.33 mm)

0.015 in. (0.38 mm)

0.017 in. (0.43 mm)

✔

✔✔✔ ✔

✔✔ ✔ ✔

Choosing the Correct Tip

Consider coating and surface to be sprayed. Make sure
you use best tip hole size for that coating and best fan
width for that surface.

HINTS:

• As you spray, the tip wears and enlarges. Starting
with a tip hole size smaller than the maximum will
allow you to spray within the rated flow capacity of
the sprayer.

• Maximum tip hole sizes supported by the sprayer:

– Project Painter Plus Models: 0.015 in. (0.38 mm)

Coatings

✔✔ ✔

Fan Width

Fan width is the size of the spray pattern, which deter­mines the area covered with each stroke. Narrower fans
deliver a thicker coat, and wider fans deliver a thinner
coat.

Tip Hole Size

Tip hole size controls flow rate - the amount of paint that
comes out of the gun.

HINTS:

• Use larger tip hole sizes with thicker coatings and
smaller tip hole sizes with thinner coatings.

• Tips wear with use and need periodic replacement.

Understanding Tip Number

The last three digits of tip number (i.e.: 286413) contain
information about hole size and fan width on surface
when gun is held 12 in. (30.5 cm) from surface being
sprayed.

HINTS:

• Select a fan width best suited to the surface being
sprayed.

• Wider fans allow provide better coverage on broad,
open surfaces.

• Narrower fans provide better control on small, con­fined surfaces.

First digit when doubled

= approximate
fan width

413 tip has
a 0.013 in
hole size

Last two digits = tip hole size in thousands of an inch

413 tip has

8-10 in.

fan width

.

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3A0248C 19

Getting Started With Basic Techniques

Getting Started With Basic Techniques

Use a piece of scrap cardboard to practice these basic
spraying techniques before you begin spraying the sur­face.

• Hold gun 12 in. (30 cm) from surface and aim
straight at surface. Tilting gun to direct spray angle
causes an uneven finish.

12 in.
(30 cm)

even
finish

• Flex wrist to keep gun pointed straight. Fanning gun
to direct spray at angle causes uneven finish.

even finish thin thick thin

thick

uneven

finish

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thin

Triggering Gun

Pull trigger after starting stroke. Release trigger before
end of stroke. Gun must be moving when trigger is
pulled and released.

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Aiming Gun

Aim tip of gun at bottom edge of previous stroke, over­lapping each stroke by half.

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20 3A0248C

Shutdown and Cleaning

Shutdown and Cleaning

Pail Flushing

• For short term shutdown periods (overnight to two
days) refer to Short Term Storage, page 25.

• For flushing after spraying oil-based coatings, use
compatible oil-based flushing fluid or mineral spirits.
Read Priming and Flushing Storage Fluid, page 16.

• For flushing after spraying water-based coatings,
use water. Read Priming and Flushing Storage
Fluid, page 16 or Power Flush, page 23.

1. Relieve pressure, page 14.

2. Remove tip and guard assembly from gun and place
in flushing fluid.

3. Lift suction tube and prime tube from paint pail. Let
them drain into paint pail for a while.

4. Separate prime tube (smaller) from suction tube
(larger).

6. Place prime tube in waste pail.

WASTE

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7. Submerge suction tube in water or flushing solvent.

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WATER or
SOLVENT

8. Turn pressure control knob to the Prime/Clean set­ting.

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5. Place empty waste and water or solvent pails side
by side.

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WASTE

3A0248C 21

WATER or
SOLVENT

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9. Turn power switch ON.

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10. Flush until approximately 1/3 of the flushing fluid is
emptied from the pail.

11. Turn power switch OFF.

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Shutdown and Cleaning

NOTE: Step 12 is for returning paint in hose back to
paint pail. One 50-ft hose holds approximately 1-quart
(1-liter) of paint.

12. To preserve paint in hose:

a. Point gun into paint pail.

b. Unlock gun trigger lock.

ti8909a

c. Pull and hold gun trigger.

d. Lower prime/spray valve to SPRAY.

13. While continuing to trigger gun, quickly move gun to
redirect spray into waste pail. Continue triggering
gun into waste pail until flushing fluid dispensed
from gun is relatively clear.

ti12942a

14. Stop triggering gun. Engage the trigger lock.

ti8908a

15. Lift prime/spray valve to PRIME.

ti13960a

e. Turn power switch ON.

ti5580a

f. Continue to hold gun trigger until you see paint

diluted with flushing fluid starting to come out of
gun.

ti13961a

16. Turn power switch OFF.

ti2018a

17. Clean InstaClean Fluid Filter and gun, page 24.

18. Fill unit with Pump Armor

™

storage fluid. Read Long

Term Storage, page 25.

o preserve paint in hose, trigger gun into paint pail

to expel the remaining paint.

22 3A0248C

Shutdown and Cleaning

Power Flush

Power flushing is a faster method of flushing. It can only
be used after spraying water-based coatings.

1. Relieve pressure, page 14.

2. Remove tip and guard assembly from gun and place
in waste pail.

3. Place empty waste and paint pails side by side.

ti9726a

4. Lift suction tube and prime tube from paint pail. Let
them drain into paint for a while.

5. Place suction and prime tube in waste pail.

6. Turn Pressure Control knob to the Prime/Clean set­ting.

10. Unscrew inlet screen from suction tube. Place inlet
screen in waste pail.

ti2040a

11. Connect garden hose to suction tube with Power
Flush attachment. Leave prime tube in waste pail.

ti2042a

12. Turn power switch ON.

ti12940a

7. Screw power flush attachment to garden hose.
Close valve.

8. Turn on water. Open valve. Rinse paint off suction
tube, prime tube and inlet screen.

ti9413a

9. Turn lever to close power flush attachment.

ti9413a

ti5580a

13. Open lever on Power Flush attachment.

ti2043a

OPEN

14. Circulate water through sprayer, into waste pail, for
20 seconds.

15. Turn power switch OFF.

ti2018a

3A0248C 23

NOTE: Step 16 is for returning paint in hose back to
paint pail. One 50-ft (15-m) hose holds approximately
1-quart (1-liter) of paint.

Shutdown and Cleaning

19. Lift prime/spray valve to PRIME.

16. To preserve paint in hose:

a. Point gun into paint pail.

b. Unlock gun trigger lock.

ti8909a

c. Pull and hold gun trigger.

d. Lower prime/spray valve to SPRAY.

ti13960a

e. Turn power switch ON.

ti13961a

20. Turn power switch OFF.

ti2810a

21. Turn off garden hose. Close Power Flush attach­ment.

ti9413a

22. Unscrew Power Flush attachment from suction
tube.

ti2047a

ti5580a

f. Continue to hold gun trigger until you see paint

diluted with water starting to come out of gun.

17. While continuing to trigger gun,
quickly move gun to redirect
spray into waste pail. Continue
triggering gun into waste pail
until water coming out of gun is
relatively clear.

18. Stop triggering gun. Engage trigger lock.

ti8908a

ti12942a

23. Clean InstaClean fluid filter and gun, page 24.

24. Fill unit with Pump Armor

™

storage fluid. Read Long

Term Storage, page 25.

Cleaning Gun

• Clean gun fluid filter (d) with
water or flushing solvent
and a brush every time you
flush the system. Replace
gun filter if damaged.

• Remove tip and guard and
clean with water or flushing
solvent. A soft brush can be
used to loosen and remove
dried on material if needed.

• Wipe paint off outside of
gun using a soft cloth moist­ened with water or flushing
solvent.

ti9671a

d

24 3A0248C

Storage

Storage

Short Term Storage

(up to 2 days)

1. Relieve pressure, page 14.

2. Leave suction tube and prime tube in paint pail.

ti14964a

3. Cover paint pail and hoses tightly with plastic wrap.

d. Wipe paint off outside of gun using a soft cloth

moistened with water or flushing solvent.

Long Term Storage

(more than 2 days)

• Always circulate Pump Armor storage fluid through
system after cleaning. Water left in sprayer will cor­rode and damage pump.

• Follow Shutdown and Cleaning, page 21, or Power
Flush Cleaning, page 23.

1. Place suction tube in Pump Armor storage fluid bot­tle and prime tube in waste pail.

ti14965a

4.
a. Engage trigger lock.

ti8908a

b. Leave gun attached to hose.

c. If you have not already cleaned them, remove

tip and guard from gun and clean with water or
flushing solvent. A soft brush can be used to
loosen and remove dried on material if needed.

ti9671a

ti2057a

2. Lift prime/spray valve to PRIME.

ti13961a

3. Turn power switch ON.

ti5580a

3A0248C 25

Storage

4. Turn pressure control knob clockwise until the pump
turns on.

ti12949a

5. When storage fluid comes out of prime tube (5-10
seconds) turn power switch OFF.

ti2018a

6. Lower prime/spray valve to SPRAY to keep storage
fluid in sprayer during storage.

ti13960a

1. Screw inlet screen onto
suction tube.

ti9433a

2. Coil hose. Leave it con­nected to sprayer. Wrap
hose around hose wrap
bracket.

ti14966a

3. Secure a plastic bag
around suction tube to catch
any drips.

4. Store sprayer indoors.

Stowing Sprayer

NOTICE

• To prevent damage to the equipment, make sure all
water is drained out of sprayer and hoses before
storing.

• Do not allow water to freeze in sprayer or hose.

• Do not store sprayer under pressure.

ti5552a

26 3A0248C

Maintenance and Service*

Maintenance and Service*

NOTICE

Protect the internal drive parts of this sprayer
from water. Openings in shroud allow cooling of

mechanical parts and electronics inside. If water
gets into these openings, the sprayer could malfunc­tion or be permanently damaged.

Caring for Sprayer

Keep sprayer and all accessories clean and in good
working order.

Paint Hoses

Check hose for damage every time you spray. Do not
attempt to repair hose if hose jacket or fittings are dam­aged. Do not use hoses shorter than 25 ft (7.6 m). Use
two wrenches to tighten.

Tips

• Always clean tips with compatible solvent and brush
after spraying.

ti2776a

To avoid overheating motor, keep vent holes in shroud
clear for air flow. Do not cover sprayer while spraying.

ti14967a

* The Project Painter Plus is a non-repairable sprayer. Please refer to
the Part List (page 32) for a list of replaceable parts.

• Tips may require replacement after 15 gallons (57
liters) or they may last through 60 gallons (227
liters) depending on abrasiveness of paint.

• Do not spray with worn tip.

ti2055a

3A0248C 27

Troubleshooting

Problem Cause Solution

Troubleshooting

Check everything in this Troubleshooting Table
before you bring the sprayer to an authorized ser­vice center.

Power switch is on and sprayer is
plugged in, but motor does not run,
and pump does not cycle.

Pressure is set at zero pressure. Turn pressure control knob clockwise

to increase pressure setting.

Motor or control is damaged. Take sprayer to an authorized service

center.*

Electric outlet is not providing power. • Try a different outlet or plug in

something that you know is work­ing to test outlet.

• Reset building circuit breaker or
replace fuse.

Extension cord is damaged. Replace extension cord. Read

Grounding and Electric Require­ments, page 10.

Sprayer electric cord is damaged. Check for broken insulation or wires.

Replace electric cord if damaged.

Paint and/or water is frozen or hard­ened in pump.

Unplug sprayer from outlet. If frozen
do NOT try to start sprayer until it is
completely thawed or you may dam­age the motor, control board and/or
drivetrain.

Make sure power switch is OFF.
Place sprayer in a warm area for sev­eral hours. Then plug in powercord
and turn sprayer ON. Slowly increase
pressure setting to see if motor will
start.

* The Project Painter Plus is a non-repairable sprayer. Please refer to the
Part List (page 32) for a list of replaceable parts.

28 3A0248C

If paint is hardened in sprayer, pump
packings, valves, drivetrain or pres­sure switch may need to be replaced.
Take sprayer to an authorized service
center.*

Troubleshooting

Problem Cause Solution

Pump does not prime. Inlet valve check ball is stuck. Remove suction tube and place a

pencil into the inlet section to
dislodge the ball, allowing pump to
prime properly. OR Power Flush
sprayer (see Operation manual).

Inlet valve check ball or seat is dirty. Remove inlet housing. Clean or

replace ball and seat.

Outlet valve check ball is stuck. Unscrew outlet valve with a 3/4 in.

socket. Remove and clean assembly.

Suction tube is not immersed Make sure suction tube is immersed

in paint.

Suction tube is leaking. Tighten suction tube connection.

Inspect for cracks or vacuum leaks.

Pump does not prime with fluid. Remove suction tube from paint.

Prime pump with water or
solvent-based flushing fluid.

Pump cycles but does not build up
pressure.

Pump cycles, but paint only dribbles
or spurts when spray gun is
triggered.

Pump is not primed. Prime pump.

Inlet screen is clogged. Clean debris off inlet screen and

make sure suction tube is immersed
in fluid.

Suction tube is not immersed in paint. Make sure suction tube is immersed

in paint.

Paint pail is empty. Refill hopper or paint pail. Reprime

sprayer.

Suction tube is leaking. Inlet tube fitting improperly or not

securely attached.

Prime/Spray Valve is worn or
obstructed with debris.

Take sprayer to authorized service
center.*

Pump check ball is stuck. Read Pump does not prime section

above.

Pressure is set too low. Turn Pressure Control Knob

clockwise to increase pressure
setting which will turn on motor to
build pressure.

Spray tip is clogged. Unclog spray tip.

Spray gun fluid filter is clogged. Clean or replace gun fluid filter.

Spray tip is too large or worn. Replace spray tip.

3A0248C 29

Problem Cause Solution

Troubleshooting

Pressure is set at maximum but
cannot achieve a good spray pattern.

Reversible spray tip is in UNCLOG
position.

Spray tip is too large for sprayer. Select smaller spray tip.

Spray tip is worn beyond capability of
sprayer.

Extension cord is too long or not
heavy enough gauge.

Spray gun fluid filter is clogged. Clean or replace spray gun fluid filter.

Inlet screen is clogged. Clean debris off inlet screen.

Pump valves are worn. Check for worn pump valves.

Material too thick. Thin material.

Hose too long (if extra section is
added).

Spray gun stopped spraying. Pump was not primed with flushing

fluid.

Suction tube is leaking. Tighten suction tube connection.

Prime/Spray Valve is plugged. Clean/replace prime tube as

Spray tip is clogged. Unclog spray tip.

When paint is sprayed, it runs down

Coat is going on too thick. Move gun faster.

the wall or sags.

When paint is sprayed, coverage is

Paint coating is going on too thin. Move gun slower.

inadequate.

Rotate arrow-shaped handle on
spray tip so it points forward in
SPRAY position.

Replace spray tip.

Replace extension cord. Grounding
and Electrical Requirements, page

10.

a. Prime sprayer with paint

b. Trigger gun momentarily.

When trigger is released,
pump should cycle momen­tarily and stop. If pump con­tinues to cycle, pump valves
may be worn. Take sprayer
to authorized service center.*

Remove section of hose.

Remove suction tube from paint.
Prime pump with water or flushing
solvent-based flushing fluid.

Inspect for cracks or vacuum leaks.

necessary. Take sprayer to
authorized service center if valve is
plugged.*

Choose a tip with smaller hole size.

Choose tip with wider fan.

Make sure gun is far enough from
surface.

Choose tip with larger hole size.

Choose tip with narrower fan.

Make sure gun is close enough to
surface.

30 3A0248C

Troubleshooting

Problem Cause Solution

Fan pattern varies dramatically while
spraying.

OR

Pressure control switch is worn and
causing excessive pressure
variation.

Take sprayer to authorized service
center.*

Sprayer does not turn on promptly
when resuming spraying.

Cannot trigger spray gun. Spray gun trigger lock is locked. Rotate trigger safety lever to unlock

trigger lock, page 14.

Paint is coming out of pressure
control switch.

Prime/Spray valve actuates
automatically relieving pressure

Pressure control switch is worn. Take sprayer to authorized service

center.*

System is over pressurizing. Take sprayer to authorized service

center.*

through prime tube.

Paint leaks down outside of pump. Pump packings are worn. Replace sprayer.

Motor is hot and runs intermittently.
Motor automatically shuts off due to
excessive heat. Damage can occur if
cause is not corrected.
Thermal Overload, page 10.

Vent holes in enclosure are plugged
or sprayer is covered.

Extension cord is too long or not a
heavy enough gauge.

Keep vent holes clear of obstructions
and overspray and keep sprayer
open to air.

Replace extension cord. Read

Grounding and Electrical
Requirements, page 10.

Unregulated electrical generator
being used has excessive voltage.

Use electrical generator with a proper
voltage regulator. Sprayer requires
120VAC, 60 Hz, 1500-Watt
generator.

Sprayer was operated at high
pressure with very small tip which

Decrease pressure setting or

increase tip size.
causes frequent motor starts and
excessive heat build up.

Building circuit breaker opens after
sprayer operates for 5 to 10 minutes.

Too many appliances are plugged in
on same circuit.

Free up circuit (unplug things), or use

a less busy circuit.

Sprayer electrical cord is damaged. Check broken insulation or wires.

Replace electrical cord if damaged.

Extension cord is damaged or too
long or not a heavy enough gauge.

• Plug in something that you know
is working to test extension cord.

* The Project Painter Plus is a non-repairable sprayer. Please refer to the
Part List (page 32) for a list of replaceable parts.

3A0248C 31

• Replace extension cord.

Parts List

Project Painter Plus Model (257025)

1

45

6

Parts List

7

2

3

Qty

Ref. Part Description

1 197607 KIT, suction tube 1
2 243011 GUN, SG2 1
3 24D616 KIT, enclosure and stand 1
4 244035 DEFLECTOR, barbed 1
5 257002 STRAINER 1
6 24D626 SPRAYER (no hose or gun) 1
7 24D617 KIT, front cover 1
8 247339 HOSE, 1/4 in. x 25 ft 1

8

ti14968a

.

32 3A0248C

Technical Data

Technical Data

Project Painter Plus

Working pressure range 0-2800 psi

(0-19 MPa, 0-193 bar)

Electric motor

(open frame, universal)

Operating horsepower 3/8

Maximum delivery (with tip) 0.24 gpm (0.91 lpm)

Paint hose 1/4 in. x 25 ft

Maximum tip hole size

Weight, sprayer only 10 lb (4.5 kg)

Weight, sprayer, hose & gun 13.2 lb (5.9 kg)

Dimensions:

Length 13.6 in. (34.5 cm)

Width 11.1 in. (28.1 cm)

Height 17.8 in. (45.2 cm)

Power cord 18 AWG, 3-wire,

Fluid inlet fitting 3/4 in. internal thread (standard garden hose thread)

Fluid outlet fitting 1/4 NPSM external thread

Inlet screen (on suction tube) 35 mesh (450 micron)

Wetted parts, pump & hose stainless steel, brass, leather, ultra-high molecular weight polyethylene

(UHMWPE), carbide, nylon, aluminum, PVC, polypropylene, fluroelastomer

Wetted parts, gun aluminum, brass, carbide, nylon, plated steel, stainless steel, UHMWPE, zinc

Generator requirement 1500 Watt minimum

Electrical power requirement 120 Vac, 60 Hz, 15A, 1 phase

Storage temperature range ◆❖ -30° to 160°F (-35° to 71°C)

Operating temperature range ✔ 40° to 115°F (4° to 46°C)

0.015 in. (0.38 mm)

7.0A

(6.4 mm x 7.5 m)

6 ft (1.8 m)

◆ When pump is stored with non-freezing fluid. Pump damage will occur if water or latex paint freezes in pump.
❖ Damage to plastic parts may result if impact occurs in low temperature conditions.
✔ Changes in paint viscosity at very low or very high temperatures can affect sprayer performance.

3A0248C 33

Notes

Notes

34 3A0248C

Notes

Notes

3A0248C 35

Standard Warranty

Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from
defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special,
extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace
any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed,
operated and maintained in accordance with Graco’s written recommendations.

This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused
by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering,
or substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the
incompatibility of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper
design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not supplied by
Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor
for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts.
The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose
any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts,
labor, and transportation.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR
PURPOSE.

Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no
other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or
property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within
two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS
SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors,

switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable
assistance in making any claim for breach of these warranties.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying
equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach
of contract, breach of warranty, the negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal
proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English.

Les parties reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis
et procédures judiciaires exécutés, donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les
procédures concernées.

For the latest information about Graco products, visit www.graco.com.

TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor.

All written and visual data contained in this document reflects the latest product information available at the time of publication.

Graco reserves the right to make changes at any time without notice.

For patent information, see www.graco.com/patents.

Original instructions. This manual contains English. MM 3A0248

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

Copyright 2009, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

36 3A0248C

Graco Headquarters: Minneapolis

Standard Warranty

www.graco.com

Revised February 2013

3A0248C 37