3A6419B EN
888-541-9788
http://magnum.graco.com/magop/
Important Safety Instructions
Read all warnings and instructions in this manual, related manuals, and on the unit. Be familiar
with the controls and the proper usage of the equipment. Save these instructions.
Magnum Products Operational Videos
http://magnum.graco.com/magop/
For portable spray applications of architectural paints and coatings only.
Not approved for use in explosive atmospheres or hazardous locations.
Before You Spray
110474
Certified to
CAN/CSA
C22.2 No. 68
Conforms to
UL 1450
Before You Spray
Review Warnings for Important Safety Information
Important! Read carefully and practice good safety habits.
Related Manuals
312830 SG Spray Guns
3A3172 ProXChange™ Pump
Models
3000 psi (207 bar, 20.7 MPa) Maximum Working Pressure
VAC Model Stand (Series) Cart (Series)
17G177 (A)
120
USA
ProX17
ProLTS170
ProX19
ProLTS190 17H206 (A)
ProX21
17K438 (A)
CAN177 (A)
17H198 (A)
17G179 (A)
CAN179 (A)
17G181 (A)
CAN181 (A)
Magnum Products Operational Videos
http://magnum.graco.com/magop/
17G178 (A)
CAN178 (A)
17G180 (A)
17K439 (A)
CAN180 (A)
17G182 (A)
CAN182 (A)
Online Resources
Visit Our Website: magnum.graco.com
Operational Videos: magnum.graco.com/magop/
Manuals: magnum.graco.com/support/#manuals
Parts Online: magnum.graco.com/partsonline/
Material Compatibility: magnum.graco.com/downloads/MaterialCompatibility.pdf
2 3A6419B EN
Contents
Contents
Before You Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Know Your Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ProX and ProLTS Stand Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Know Your Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
ProX and ProLTS Cart Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Know Your Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Flush Storage Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Strain the Paint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fill Pump (Prime Pump) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fill Gun and Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Refilling Paint Pail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Blockages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Adjust Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Spray Pattern Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Spray Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Triggering Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Aiming Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Aligning Spray Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Spray Tip and Pressure Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Clear Spray Tip Clog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Spray Tip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cleaning from a Pail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cleanup with Power Flush Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning InstaClean Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Clean the Gun and Gun Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Short Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Long Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Lacquer Conversion Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Cleaning Fluid Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Static Grounding Instructions (Oil-Based materials) . . . . . . . . . . . . . . . . . . . . . . . . 30
Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3A6419B EN 3
Contents
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Airless Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Spray Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Storage/Priming Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Inlet Valve Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pump Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
ProX17, ProX19, ProLTS170 Stand Sprayer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
ProX17, ProX19, ProLTS170 Stand Sprayer Parts List . . . . . . . . . . . . . . . . . . . . . . 41
ProX21 Stand Sprayer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
ProX21 Stand Sprayer Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
ProX17, ProX19, ProLTS190 Cart Sprayer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
ProX17, ProX19, ProLTS190 Cart Sprayer Parts List . . . . . . . . . . . . . . . . . . . . . . . 45
ProX21 Cart Sprayer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
ProX21 Cart Sprayer Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
ProXChange Pump Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
ProXChange Pump Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Wiring Diagram - 110/120V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4 3A6419B EN
Notes
Notes
3A6419B EN 5
Warnings
ti3509b
Conductor Size Length
AWG (American Wire Gauge) Metric Maximum
16
1.5 mm
2
25 ft. (8 m)
12
2.5 mm
2
50 ft. (15 m)
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
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.
• 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
plugs illustrated below.
• Only connect the product to an outlet having the same configuration as the plug.
• Do not use a 3-to-2 adapter with this product.
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 12
AWG (2.5mm
2
) 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.
6 3A6419B EN
Warnings
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.
• 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 Graco conductive or grounded high-pressure airless paint sprayer
hoses.
• 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.
• Do not use a paint or a solvent containing halogenated hydrocarbons.
• Do not spray flammable or combustible liquids in a confined area.
• 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 area a least 20 feet
(6.1 m) from the spray area when spraying, flushing, cleaning, or servicing. Do not spray
pump assembly.
• 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
solvents 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.
3A6419B EN 7
Warnings
SKIN INJECTION HAZARD
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.
• 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 Graco 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.
• 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 hoses and parts for signs of damage. Replace any damaged hoses or parts.
• This system is capable of producing 3000 psi (207 bar, 20.7 MPa). Use Graco
replacement parts or accessories that are rated a minimum of 3000 psi (207 bar, 20.7
MPa).
• 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.
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
Graco.
• Do not use the hose as a strength member to pull or lift the equipment.
• Do not spray with a hose shorter than 25 feet.
• 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 w hich you are using
it.
8 3A6419B EN
Warnings
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.
MOVING PARTS HAZARD
Moving parts can pinch, cut, 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 and disconnect all power sources.
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. This 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.
CALIFORNIA PROPOSITION 65
This product contains a chemical known to the State of California to cause cancer, birth
defects or other reproductive harm. Wash hands after handling.
3A6419B EN 9
Know Your Sprayer
Know Your Sprayer
ProX and ProLTS Stand Models
A Power - ON/OFF Switch
B Pressure Control Knob
C Prime/Spray Valve
D Spray Tip
E PushPrime™ Button
F Suction Tube
G Drain Tube (with diffuser)
H Airless Spray Gun
J Spray Tip Guard
K Gun Trigger Lock
LGun Fitting
M Gun Filter (inside handle)
N ProXChange™ Pump (behind Easy
Access Door)
OInlet Valve
10 3A6419B EN
P Airless Hose Connection
Q Airless Hose
R InstaClean™ Filter (inside fluid outlet)
T Inlet Screen
U Power Cord
V Easy Access Door
W Suction Tube Drip Cup
X Pump Removal Tool
YOutlet Valve
Z Inlet Valve Removal Tool
Model/Serial Tag (Not shown, located
on bottom of unit.)
See Quick Reference, page 31 for more
information.
Know Your Sprayer
ProX and ProLTS Cart Models
Know Your Sprayer
A Power - ON/OFF Switch
B Pressure Control Knob
C Prime/Spray Valve
D Spray Tip
E PushPrime Button
F Suction Tube
G Drain Tube (with diffuser)
H Airless Spray Gun
J Spray Tip Guard
K Gun Trigger Lock
LGun Fitting
M Gun Filter (inside handle)
N ProXChange™ Pump (behind Easy
Access Door)
OInlet Valve
3A6419B EN 11
P Airless Hose Connection
Q Airless Hose
R InstaClean Filter (inside fluid outlet)
S Pail Hanger
T Inlet Screen
U Power Cord
V Easy Access Door
X Pump Removal Tool
YOutlet Valve
Z Inlet Valve Removal Tool
Model/Serial Tag (Not shown, located
on bottom of unit.)
See Quick Reference, page 31 for more
information.
Know Your Controls
Know Your Controls
The ON/OFF power switch controls the main
power to your sprayer.
The Pressure Control knob increases or
decreases the pressure and flow of the paint.
The Prime/Spray Valve directs the fluid to
either the Drain Tube or the hose and gun. It
is used to prime the sprayer, which means to
evacuate the air out of the pump, hose, and
gun.
Your gun will not spray if there is air in the
system. It is necessary to prime the pump,
hose, and gun any time air enters the Suction
Tube.
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.
12 3A6419B EN
Set Up
Set Up
Assemble Your Sprayer
1. Connect airless hose to airless hose
connection (P) on sprayer. Use wrench
to tighten securely.
2. Connect the other end of the hose to
the gun. Use two wrenches to tighten
securely to gun (see image below).
If hose is already connected, make sure
connections are tight.
3. Assure Spray Tip is properly inserted
into the Spray Tip Guard, and the Spray
Tip Guard assembly is tightened
securely to gun. See Spray Tip
Installation, page 21.
4. Perform the Pressure Relief
Procedure, page 14.
3A6419B EN 13
Start Up
Start Up
Pressure Relief Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
This equipment stays pressurized until
pressure is manually relieved. To help
prevent serious injury from pressurized
fluid, such as skin injection or splashed
fluid, follow the Pressure Relief
Procedure whenever sprayer is stopped
and before sprayer is cleaned or checked,
and before equipment is serviced.
1. Turn ON/OFF switch to the OFF
position.
3. Turn pressure control knob to lowest
setting.
4. Put Drain Tube into a waste pail and
turn Prime/Spray Valve down to PRIME
position to relieve pressure.
5. Hold the gun firmly to a pail. Point gun
into pail. Disengage the trigger lock and
trigger the gun to relieve pressure.
2. Engage the trigger lock. Always engage
the trigger lock when sprayer is stopped
to prevent the gun from being triggered
accidentally.
6. Engage the trigger lock.
7. If you suspect that pressure has not
been fully relieved, see Blockages,
page 17.
NOTE: Leave Prime/Spray Valve in the
PRIME position until you are ready to spray.
14 3A6419B EN
Start Up
Flush Storage Fluid
It is important that you flush storage fluid
from the sprayer before using it.
1. Make certain ON/OFF switch is OFF.
2. Separate Drain Tube (smaller) from
Suction Tube (larger). Place Drain
Tube in a waste pail.
3. Submerge Suction Tube into pail filled
with water if spraying water-based
material, or mineral spirits if spraying
oil-based material.
4. Turn Prime/Spray Valve down to
PRIME position.
7. Align setting indicator with the START
setting on the pressure control knob.
8. Turn ON/OFF switch to ON position.
9. When sprayer starts pumping, flushing
fluid will flow up the Suction Tube and
out the Drain Tube. Allow fluid to flow
out of Drain Tube, into waste pail, for 30
to 60 seconds.
5. Plug power supply cord into a properly
grounded electrical outlet.
6. Press the PushPrime button twice to
loosen Inlet Valve ball.
3A6419B EN 15
10. Turn the ON/OFF switch to OFF position.
NOTE: If flushing fluid fails to come out of the
Drain Tube, see Storage/Priming Tool,
page 32.
Start Up
Strain the Paint
Disposable paint strainer bags are used to
remove coarse particles and debris from
new or previously opened paint or stain, and
are available where paint is sold. To avoid
priming problems and Spray Tip clogs it is
recommended to strain all paints and stains
before spraying. Stretch a disposable paint
strainer bag over a clean pail and pour the
paint through the strainer.
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
ti26894a
Fill Pump (Prime Pump)
The Prime/Spray Valve directs the fluid to
either the Drain Tube or the hose and gun. It
is used to prime the sprayer, which means to
evacuate the air out of the pump, hose, and
gun.
Your gun will not spray if there is air in the
system. It is necessary to prime the pump,
hose, and gun any time air enters the suction
tube.
1. Move Suction Tube to paint pail and
submerge Suction Tube in paint.
2. Turn ON/OFF switch to ON position.
3. Wait to see paint coming out of Drain
Tube.
4. Turn ON/OFF switch to OFF position.
NOTE: If paint does NOT flow up the Suction
Tube and out the Drain Tube, see Flush
Storage Fluid, page 15.
Fill Gun and Hose
1. Rotate Spray Tip to UNCLOG position
and ensure the Spray Tip Guard is tight.
2. Hold gun against waste pail. Point gun
into waste pail.
a. Disengage trigger lock (A).
b. Pull and hold gun trigger (B).
c. Turn Prime/Spray Valve horizontal
to SPRAY position (C).
d. Turn ON/OFF switch to ON position
(D).
3. Trigger gun into waste pail until only
paint comes out of the gun.
16 3A6419B EN
Start Up
4. Release trigger. Engage trigger lock.
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
NOTE: Inspect for leaks. If leaking occurs,
perform Pressure Relief Procedure, page
14, then tighten all fittings and repeat Fill
Pump (Prime Pump), page 16.
5. Transfer Drain Tube to paint pail and clip
to Suction Tube.
6. Rotate Spray Tip back to SPRAY
position and ensure the Spray Tip Guard
is tight.
Refilling Paint Pail
When the paint pail runs low and the gun
stops spraying, refill the paint pail and repeat
the Fill Pump (Prime Pump) procedure,
then the Fill Gun and Hose procedure.
You are now ready to spray!
NOTE: It is normal for the motor to stop once
the sprayer is primed and under pressure. If
the motor continues to run, the sprayer is not
primed. Repeat the Fill Pump (Prime Pump)
and Fill Gun and Hose processes.
Blockages
If paint does not come out of the gun, or if
performing pressure relief procedure and
you suspect pressure has not been fully
relieved:
1. VERY SLOWLY loosen the hose
connection to the gun and disconnect
the airless spray hose from the gun.
2. Turn Prime/Spray Valve horizontal to
SPRAY position.
3. While holding hose firmly, point end of
hose into paint pail and turn ON/OFF
switch to ON position.
a. If fluid does not flow out of hose,
replace the hose and continue to
step 4.
b. If fluid flows out of hose, see Clean
the Gun and Gun Filter, page 27.
4. Reassemble the hose and gun, and
repeat Fill Gun and Hose, page 16.
3A6419B EN 17
Spraying
Spraying
Start
1. Turn pressure control knob to START
position.
2. Disengage trigger lock.
Adjust Pressure Control
To select a setting, align symbol on pressure control knob with setting indicator on sprayer.
1. For best spray results with lowest overspray, adjust pressure control to “START” setting.
2. Test the spray pattern on a test area or piece of cardboard.
3. If needed, increase Pressure Control Knob setting to minimum setting that results in an
acceptable spray pattern.
Spray Pattern Quality
A good spray pattern is evenly distributed as
it hits the surface.
• Spray should be atomized (evenly dis-
tributed, no gaps at edges).
• Increase Pressure Control Knob if
needed until spray is even and without
gaps at edges.
• Spray Tip may be worn or a smaller tip
may be needed. See Spray Tip and
Pressure Selection, page 20.
• Material may need to be thinned. If
material needs to be thinned follow
manufacturer’s recommendations.
18 3A6419B EN
Spray 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.
• Flex wrist to keep gun pointed straight.
Fanning gun to direct spray at angle
causes uneven finish.
Spraying
Aiming Gun
Aim center of spray of gun at bottom edge of
previous stroke, overlapping each stroke by
half.
Aligning Spray Pattern
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
1. Relieve pressure. See Pressure Relief
Procedure, page 14. Engage trigger
lock.
2. Align guard horizontally to spray a horizontal pattern.
3. Align guard vertically to spray a vertical
pattern.
Triggering Gun
Pull trigger after starting stroke. Release
trigger before end of stroke. Gun must be
moving when trigger is pulled and released.
3A6419B EN 19
Spraying
Spray Tip and Pressure Selection
Spray Tips come in a variety of sizes for spraying a wide range of materials. Your sprayer
includes a 515 Spray Tip for use with most paints on large surfaces such as walls and ceilings.
If you are spraying stain or need a different spray fan width, refer to the Spray Tip chart below
to select the best Spray Tip for your project. Additional Spray Tip sizes are available where paint
sprayers are sold.
1. What material are you spraying?
• The thicker the material, the larger
Spray Tip size you will need.
2. What spray fan width is needed for your
project?
• Narrow spray fan for smaller
projects
• Wider spray fan for larger projects
3. Confirm your sprayer can be used with
your Spray Tip size.
Fan Width
4 in Fan
Material
Stain and Sealer
Semi Transparent
Stain
Solid Stain
Interior
Paint/Primer
Exterior
Paint/Primer
6 in Fan
Width
209 309
211 311 411
211 311 411
211 311 411
8 in Fan
Width
313 413
313 413
315 415 515
10 in Fan
Width
Width
417 517
415 515
417 517
519 619
521 621
• As you spray, the Spray Tip wears and as a result, the hole size gets larger. Starting with
a Spray Tip hole size smaller than the maximum will allow you to spray longer within the
compatibility of the sprayer.
• Spray Tips wear with use and need periodic replacement.
Tip Number Calculation:
• The first digit is half of the fan width
(#5 x 2 = 10 inch fan width).
• The last two digits are the size of the
tip opening in thousandths of an
inch.
12 in Fan
Width
Sprayer Compatibility
Each Sprayer Supports a Maximum Spray Tip Size
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX17/ProLTS170, ProX19/ProLTS190, ProX21
ProX19/ProLTS190, ProX21
ProX21
20 3A6419B EN
Spraying
UNCLOG
SPRAY
Clear Spray Tip Clog
In the event that particles or debris clog the
Spray Tip, the Spray Tip can be reversed to
quickly and easily clear particles without
disassembling the sprayer.
See Strain the Paint, page 16 for additional
information.
1. Engage trigger lock. Rotate Spray Tip to
UNCLOG position. Ensure spray tip
remains fully seated, pushed all the way
into the Spray Tip Guard. Disengage
trigger lock. Trigger gun at waste area to
clear clog.
2. Engage trigger lock. Rotate Spray Tip
back to SPRAY position. Disengage
trigger lock and continue spraying.
Spray Tip Installation
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.
To prevent Spray Tip leaks make certain
Spray Tip and Spray Tip Guard are installed
properly.
1. Perform Pressure Relief Procedure,
page 14.
2. Engage trigger lock.
3. Verify Spray Tip Guard parts are
assembled in the order shown.
NOTE: If Spray Tip is difficult to rotate when
turning to the UNCLOG position perform,
Pressure Relief Procedure, page 14, then
turn Prime/Spray Valve horizontal to SPRAY
position and repeat step 1.
3A6419B EN 21
Spraying
a. Use Spray Tip to align gasket and
seal in the Spray Tip Guard.
b. Spray Tip must be pushed all the
way into the Spray Tip Guard.
Rotate Spray Tip while pushing
down.
c. Turn the arrow shaped handle on
the Spray Tip forward to the SPRAY
position.
4. Screw Spray Tip Guard assembly onto
the gun and tighten.
22 3A6419B EN
Cleanup
7
124a
Cleanup
Cleaning the sprayer after each use results in
a trouble free start up the next time the
sprayer is used.
• For short term shutdown periods (over-
night to two days), refer to Short Term
Storage, page 28.
• For cleanup after using water-based
materials only (by use of a garden
hose), refer to Cleanup with Power
Flush Valve, page 25.
• For cleanup from pails, refer to Clean-
ing from a Pail, below.
• For cleanup after using oil-based or
solvent-based flammable materials,
see Cleaning Fluid Compatibility,
page 30.
Cleaning from a Pail
1. Perform Pressure Relief Procedure,
page 14.
2. Remove Spray Tip Guard assembly
from gun and place in waste pail.
4. Separate Drain Tube (smaller) from
Suction Tube (larger).
ti2
5. Place empty waste and flushing fluid
pails side by side.
6. Place Suction Tube in flushing fluid. For
water-based paints, use water. For
non-water-based paints, use mineral
spirits, paint thinner, or compatible
flushing fluid. Place Drain Tube in
waste pail.
7. Turn Pressure Control Knob to the
START position.
3. Lift Suction Tube and Drain Tube from
paint pail. Let paint drain into the pail.
3A6419B EN 23
Cleanup
ti25196b
8. Turn Prime/Spray valve down to
PRIME position.
9. Turn ON/OFF switch to ON position.
10. Flush until approximately 1/3 of the
flushing fluid is emptied from the pail.
11. Turn ON/OFF switch to OFF position.
NOTE: Step 12 is for returning paint in hose
to paint pail. One 50 ft (15.2 m) hose holds
approximately 1 quart (1 liter) of paint.
12. To recover paint in hose, point gun into
paint pail while holding gun firmly to the
pail.
a. Disengage trigger lock (A).
b. Pull and hold gun trigger (B).
c. Turn Prime/Spray Valve horizontal
to SPRAY position (C).
d. Turn ON/OFF switch to ON position
(D).
e. Continue to hold gun trigger until
you see paint diluted with flushing
fluid starting to come out of gun.
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.
14. Turn pressure control knob to the lowest setting.
15. Stop triggering gun. Engage the trigger
lock.
16. Turn Prime/Spray Valve down to
PRIME position.
17. Turn ON/OFF switch to OFF position.
18. Follow Short Term Storage or Long
Term Storage, page 28.
24 3A6419B EN
Cleanup
Cleanup with Power Flush Valve
(Water-based materials only)
Power flushing is a faster method of cleanup.
It can only be used after spraying
water-based coatings.
1. Perform Pressure Relief Procedure,
page 14.
2. Engage trigger lock. Remove Spray Tip
Guard assembly from gun and place in
waste pail.
3. Place empty waste and paint pails side
by side.
4. Lift Suction Tube and Drain Tube from
paint pail. Let paint drain into the pail.
5. Place suction and Drain Tube in waste
pail.
7. Screw Power Flush Valve (included
with sprayer) to garden hose. Close
Power Flush Valve.
8. Turn on water. Open Power Flush
Valve. Rinse paint off Suction Tube,
Drain Tube and inlet screen. Close
Power Flush Valve.
9. Unscrew inlet screen from Suction
Tube. Place inlet screen in waste pail.
Connect garden hose to Power Flush
Valve on Suction Tube. Leave Drain
Tube in waste pail.
10. Turn ON/OFF switch to ON position.
11. Open Power Flush Valve.
12. Circulate water through sprayer, into
waste pail, for 20 seconds.
6. Turn pressure control knob to the
START position.
3A6419B EN 25
13. Turn ON/OFF switch to OFF position.
NOTE: Step 14 is for returning paint in hose
to paint pail. One 50 ft (15.2 m) hose holds
approximately 1 quart (1 liter) of paint.
14. To recover paint in hose, point gun into
paint pail while holding gun firmly to the
pail.
a. Disengage trigger lock (A).
b. Pull and hold gun trigger (B).
Cleanup
c. Turn Prime/Spray Valve horizontal
to SPRAY position (C).
d. Turn ON/OFF switch to ON position
(D).
e. Continue to hold gun trigger until
you see paint diluted with flushing
fluid starting to come out of gun.
15. 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.
16. Turn pressure control knob to the lowest setting.
17. Stop triggering gun. Engage the trigger
lock.
18. Turn Prime/Spray Valve down to
PRIME position.
19. Turn ON/OFF switch to OFF position.
20. Follow Short Term Storage or Long
Term Storage, page 28.
26 3A6419B EN
Cleanup
C
B
A
t
Cleaning InstaClean Filter
The InstaClean Filter prevents debris from
entering paint hose. After each use, remove
and clean it to ensure peak performance.
1. Perform Pressure Relief Procedure,
page 14.
2. Disconnect airless spray hose (A) from
sprayer.
3. Unscrew fluid outlet (B).
4. Remove InstaClean filter (C).
27179a
5. Check InstaClean Filter (C) for debris. If
needed, clean filter with water or
flushing fluid and a soft brush.
a. Install closed (square) end of
InstaClean Filter (C) in sprayer.
b. Screw outlet valve (B) into sprayer.
6. Tighten outlet valve and reconnect
hose (A) to sprayer. Use two wrenches
to tighten securely.
Clean the Gun and Gun Filter
1. Perform Pressure Relief Procedure,
page 14.
2. Remove the gun handle by unscrewing
the handle from the gun head.
3. Clean gun filter with water or flushing
fluid and a brush every time you flush
the system. Replace gun filter if damaged.
4. Remove Spray Tip Guard assembly and
clean with water or flushing fluid and a
brush.
5. See Spray Tip Installation, page 21 to
properly reinstall Spray Tip Guard
assembly.
6. Wipe paint off outside of gun using a soft
cloth moistened with water or flushing
fluid.
3A6419B EN 27
Storage
ti27185a
ti27186a
ti25196b
Storage
With proper storage, the sprayer will be ready
to use the next time it is needed.
Short Term Storage
(up to 2 days)
1. Disconnect power (unplug power cord).
Perform Pressure Relief Procedure,
page 14.
2. Leave Suction Tube and Drain Tube in
paint pail.
3. Cover paint and pail tightly with plastic
wrap.
4. Engage trigger lock.
5. Leave gun attached to hose.
6. Remove Spray Tip and Spray Tip
Guard and clean with water or flushing
fluid and a brush.
7. Wipe paint off outside of gun using a
soft cloth moistened with water or flushing fluid.
Long Term Storage
(more than 2 days)
TM
Pump Armor
against freezing and corrosion.
• Do not store the sprayer full of water.
• Do not allow water to freeze in sprayer.
• Do not store sprayer under pressure.
• Store sprayer indoors.
1. Perform Cleanup, page 23.
2. Remove Pump Armor bottle cap and
foil seal.
fluid protects the sprayer
3. If needed, unscrew Inlet Screen from
Suction Tube. Turn Prime/Spray Valve
down to PRIME position.
28 3A6419B EN
Storage
ti27190a
4. Place drain tube in waste pail. Turn
pressure control to the START position.
5. ProX21 only:
Place Suction Tube in Pump Armor
fluid bottle. Turn Power Switch ON.
All other models:
While holding the Suction Tube above
the sprayer, pour approximately 2
ounces (1/4 cup) of Pump Armor into
Suction Tube and turn Power Switch
ON.
7. Screw Inlet Screen back to Suction
Tube. Ensure that spray gun and hose
stay attached to sprayer.
8. Turn Spray/Prime Valve horizontal to
SPRAY position for storage.
9. Turn ON/OFF switch to OFF position.
Disconnect power (unplug power cord).
10. Secure a plastic bag around Suction
Tube and Drain Tube to catch any
drips.
6. When Pump Armor is flushed through
the sprayer and out the Drain Tube,
turn Power Switch OFF. Replace and
tighten child-proof cap for storage.
3A6419B EN 29
Reference
ti24584a
Reference
Static Grounding Instructions
(Oil or Solvent-Based
Lacquer Conversion Kit
To spray lacquers and other solvent-based
flammable materials with models other than
ProX21, you must purchase a lacquer
conversion kit and follow Static Grounding
Instructions (Oil or Solvent-Based
Flammable Materials), page 30. Refer to
Parts List for kit part numbers.
Flammable Materials)
The equipment must be grounded to
reduce the risk of static sparking. Static
sparking can cause fumes to ignite or
explode. Grounding provides an escape
wire for the electric current.
Cleaning Fluid Compatibility
• When spraying water-based materi-
als, flush the system thoroughly with
water.
• When spraying lacquers or oil-based
materials, flush the system thoroughly
with mineral spirits or compatible
oil-based flushing fluid and follow
Static Grounding Instructions (Oil or
Solvent-Based Flammable Materials), page 30.
• To spray water-based materials after
spraying oil-based materials, flush the
system thoroughly with water first. The
water flowing out of Drain Tube should
be clear before you begin spraying the
water-based material.
• To spray lacquers or oil-based materi-
als after spraying water-based materials, flush the system thoroughly with
mineral spirits or a compatible oil-based
flushing fluid first. Follow Static
Grounding Instructions (Oil or Solvent-Based Flammable Materials),
page 30. The fluid flowing out of the
Drain Tube should not contain any
water.
• To avoid fluid splashing back on your
skin or into your eyes, always aim gun
at inside wall of pail.
30 3A6419B EN
Always use a metal pail for oil-based
materials when sprayer is flushed or pressure
is relieved.
Follow local code. Use only conductive metal
pails, placed on a grounded surface such as
concrete.
Do not place pail on a non-conductive surface
such as paper or cardboard which interrupts
grounding continuity.
Always ground a metal pail: connect a
ground wire to the pail. Clamp one end to the
pail and the other end to a true earth ground
such as a water pipe.
To maintain ground continuity when
sprayer is flushed or pressure is relieved:
hold metal part of gun firmly to the side of a
grounded metal pail, then trigger the gun.
Reference
Quick Reference
Page 10Name
A
B
C
D
E PushPrime Button Taps the inlet ball when pushed to loosen it.
F Suction Tube Draws fluid from paint pail into pump.
G Drain Tube Drains fluid in system during priming and pressure
H Airless Spray Gun Dispenses fluid.
J Spray Tip Guard Reduces risk of fluid injection injury.
K Gun Trigger Lock Prevents accidental triggering of spray gun.
L Gun Fitting Threaded connection for Airless Hose.
M Gun Filter (inside handle) Filters fluid entering spray gun to reduce Spray Tip
N ProXChange™ Pump Pumps and pressurizes fluid and delivers it to Airless
O Inlet Valve Allows paint to flow from paint bucket into the sprayer.
P Airless Hose Connection Threaded connection for airless hose.
Q Airless Hose Transports high-pressure fluid from pump to spray gun.
R InstaClean Filter
S Pail Hanger For transporting pail by its handle.
T Inlet Screen Prevents debris from entering pump.
U Power Cord Plugs into power source.
V Easy Access Door Permits quick access to the pump. Open pump door by
W Suction Tube Drip Cup Holds the Suction Tube during transport to catch drips.
X Pump Removal Tool Cut out in the frame provides the tools to quickly
Y Outlet Valve Allows paint to flow from the sprayer to the gun.
Z Inlet Valve Removal Tool Cut out in the frame provides the tools to quickly
Power - ON/OFF Switch
Pressure Control Knob Increases (clockwise) and decreases
Prime/Spray Valve • In PRIME position directs fluid to Drain Tube.
Spray Tip • Atomizes fluid being sprayed, forms spray pattern
Power Flush Valve Connects garden hose to Suction Tube for power
Description
Turns sprayer ON and OFF.
(counter-clockwise) fluid pressure in pump, hose, and
spray gun. To select function, align symbol on pressure
control knob with setting indicator.
• In SPRAY position directs pressurized fluid to paint
hose.
• Automatically relieves system pressure in
overpressure situations.
and controls fluid flow according to hole size.
• Reverse position unclogs plugged Spray Tips
without disassembly.
relief.
clogs.
Hose.
• Filters fluid coming out of pump to reduce Spray
Tip clogs and improve finish.
• Self cleans only during pressure relief.
pulling out on the tabs while sliding door up.
remove the pump packing without additional tools.
remove the inlet valve without additional tools.
flushing water-based fluids.
3A6419B EN 31
Maintenance
Maintenance
Routine maintenance is important to ensure proper operation of your sprayer.
Maintenance Activity
1. Inspect motor shroud openings for
blockage every time you spray.
2. Clean/inspect inlet screen, InstaClean
filter, and gun filter every time you spray.
Replace if the filter cannot be cleaned or
is damaged.
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.
Airless 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). Wrench
tighten, using two wrenches.
Spray Tips
• Always clean Spray Tips with compati-
ble cleaning fluid and brush after spraying.
• Tips may require replacement after 15
gallons (57 liters) or they may last
through 60 gallons (227 liters) depending on abrasiveness of paint. See
Spray Pattern Quality, page 18.
Storage/Priming Tool
Perform these steps if you are experiencing
difficulty priming your sprayer.
For ProX21, see Inlet Valve Removal, page
33.
1. Perform Pressure Relief Procedure,
page 14.
2. Remove Pump Armor bottle cap. Insert
small fluid tube into bottom of Storage/Prime Tool, and thread tool onto
the bottle. NOTE: For best results,
make sure the bottle is full of Pump
Armor.
3. Remove sprayer Suction Tube. Insert
tool into the inlet and push up firmly
until it stops.
32 3A6419B EN
Maintenance
ti27479a
4. Squeeze Pump Armor bottle until Pump
Armor flows into the Drain Tube.
5. Remove tool. Replace and tighten
child-proof cap for storage.
6. Reinstall the sprayer Suction Tube.
Ensure that the tube is snug on the inlet
and the clamp is engaged.
Inlet Valve Removal
An integrated tool is included in the frame to
remove the inlet valve assembly from the
pump. If you suspect that the inlet valve is
clogged or stuck, remove the valve assembly
and clean or replace.
1. Insert pump inlet into frame and loosen
the inlet valve. Remove inlet valve.
2. Remove inlet valve.
NOTICE
Do not lose the ball and spring inside the
inlet valve assembly. It may fall out when the
inlet valve is removed. Pump will not prime
without the ball and spring.
3A6419B EN 33
Maintenance
1
3
ti27463a
2
3. Perform a power flush. See Cleanup
with Power Flush Valve, page 25.
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
4. Inspect for leaks. If leaks occur, perform
Pressure Relief Procedure, page 14,
then tighten all fittings and repeat step 3.
Pump Repair
When pump packings wear, paint will begin
to leak down outside of pump. Purchase a
pump repair kit and install according to
instructions provided with kit, before your
next job. See ProXChange Pump Parts
List, page 49, or consult a Graco/MAGNUM
authorized retailer, distributor, or service
center.
Each time the pump kit is replaced, check
pump inlet and outlet valves for wear or
damage. Replace if worn or damaged.
Always replace inlet and outlet valves every
second time the pump kit is replaced.
3. Now lift the door so that it swings out of
the way.
4. Slide pump assembly off the mounting
pins.
Pump Removal
Remove airless hose, suction tube, and drain
tube. Always perform Pressure Relief
Procedure, page 14 before starting any
pump repairs and unplug the sprayer.
1. Unplug the sprayer from the power
source.
2. Pull tabs on sides of the easy access
door towards you while pushing the
entire door up.
ti26930a
34 3A6419B EN
ProXChange Removal Tool
ti26931a
1
ti27478a
2
3
An integrated tool is included in the frame to
remove the ProXChange packing assembly.
See ProXChange Pump manual for
complete repair instructions.
Pump Installation
1. Slide pump assembly onto the
mounting pins.
Maintenance
a. Move pump rod up or down until
cap is level with the opening in the
yoke.
ti27037a
b. Push on pump rod to slide pump
assembly back on to mounting
pins.
2. Swing Easy Access Door closed while
pushing the entire door down.
ti27036a
3. Install hose, suction tube, and drain
tube.
4. Plug sprayer into power source.
NOTE: Door must be fully closed and
latched before sprayer will operate.
3A6419B EN 35
Troubleshooting
Call Us Toll-Free: 1-888-541-9788
or visit us at:
www.magnum.graco.com
Troubleshooting
1. Follow Pressure Relief Procedure,
page 14, before checking or repairing.
2. Solutions at the beginning of each problem listed are the most common.
Problem Cause Solution
3. Check everything in this Troubleshooting Table before you bring the sprayer
to an authorized service center.
Have a Question?
ti24021a
Motor does not run:
(verify sprayer is plugged in, and
ON/OFF switch is on)
Easy Access Door not fully closed Verify that Easy Access Door is
Pressure control is set at zero
pressure.
Electric outlet is not providing power. Test outlet with known working
Extension cord is damaged. Replace extension cord. See page 5.
Sprayer electric cord is damaged. Check for broken insulation or wires.
Pu mp is se iz ed
(Paint has hardened in pump
or
Water is frozen in pump.)
Motor or control is damaged. Consult a Graco/ Magnum authorized
closed and latched. See step 2 of
Pump Installation, page 35.
Turn pressure control knob clockwise
to increase pressure setting.
device.
Reset circuit breaker or replace fuse.
Find working outlet.
Reset building circuit breaker or
replace fuse.
Replace electric cord if damaged.
Turn ON/OFF switch off and unplug
sprayer from outlet.
If frozen do NOT try to start sprayer
until it is completely thawed or it may
damage the motor, control board
and/or drive train.
Place sprayer in warm area for
several hours. Check for free moving
pump by removing shroud and
spinning fan.
If not frozen, check for hardened paint
in pump. If paint has hardened in
pump. See Pump Repair, page 34.
If motor does not turn with pump
removed, consult a Graco/ Magnum
authorized retailer, distributor, or
service center.
retailer, distributor, or service center.
36 3A6419B EN
Troubleshooting
Problem Cause Solution
Sprayer runs, but pump does not
prime or looses prime while in use.
(Pump cycles but does not pull paint
into Suction Tube or build pressure.)
Prime/Spray Valve is in SPRAY
position.
Inlet screen is clogged or Suction
Tube is not completely immersed in
paint.
Inlet or outlet valve ball is stuck or
dirty.
Turn Prime/Spray Valve down to
PRIME position until paint exits Drain
Tube.
Clean debris off inlet screen and
make sure Suction Tube is completely
immersed in paint.
Press PushPrime button twice to
loosen inlet valve and reprime
sprayer. See Fill Pump (Prime
Pump), page 16.
See Storage/Priming Tool, page 32.
Then reprime pump.
Remove inlet and/or outlet valves and
clean, replace and reprime. See Fill
Pump (Prime Pump), page 16.
• Make certain to not lose the
ball and spring of the inlet
valve assembly or the
sprayer will not function.
See Inlet Valve Removal,
.
page 33
• Make certain the outlet ball
moves free in the housing
before replacing.
Suction Tube is leaking. Inspect Suction Tube connection for
Debris in paint causing obstruction. Strain the paint. See Strain the
Prime/Spray Valve is worn or
obstructed with debris.
cracks or vacuum leaks.
Paint, page 16.
Take sprayer to Graco/MAGNUM
authorized service center.
3A6419B EN 37
Troubleshooting
Problem Cause Solution
Pump is primed, but can not achieve
good spray pattern.
Spray Tip may be partially clogged. See Clear Spray Tip Clog, page 21.
Reversible Spray Tip is in UNCLOG
position.
Debris in paint causing obstruction. Strain the paint. See Clear Spray Tip
Pressure is set too low. Align pressure control knob setting
InstaClean Filter is clogged. Clean or replace InstaClean filter. See
Spray gun filter is clogged. Clean or replace gun filter. See Clear
Spray Tip selected is too large for
capability of sprayer.
Spray Tip is worn beyond the
capability of sprayer.
Spray Tip gasket and seal worn or
missing.
Inlet screen is clogged or Suction
Tube is not immersed in paint.
Extension cord is too long or not
heavy enough gauge.
Inlet valve or outlet valve is worn or
clogged with debris.
Material is too thick. Thin material. Follow manufacturers
Airless hose is too long (if extra
section was added).
Rotate arrow-shaped handle on
Spray Tip so it points forward to
SPRAY position. See page 21.
Clog, page 21.
indicator to desired spray setting. See
Clear Spray Tip Clog, page 21.
Cleaning InstaClean Filter, page 27.
Spray Tip Clog, page 21.
Replace Spray Tip. See Spray
Techniques, page 19.
Replace Spray Tip. See Spray
Techniques, page 19.
Replace gasket and seal. See Spray
Techniques, page 19.
Clean debris off inlet screen and
make sure Suction Tube is immersed
in paint.
Replace extension cord. See
Extension Cords:, page 6.
Check for worn or contaminated inlet
valve or outlet valve.
- Prime sprayer with paint
- Trigger gun momentarily
- When trigger is released, pump
should cycle momentarily and stop
- If pump continues to cycle, pump
valves may be worn or contaminated
with debris
- See Storage/Priming Tool, page
32.
- Clean and reinstall valves.
- Replace valves with appropriate kits.
For kit part numbers, see
ProXChange Pump Parts List,
page 49.
recommendations.
Remove section of airless hose.
38 3A6419B EN
Troubleshooting
Problem Cause Solution
Spray gun stopped spraying while
trigger is pulled.
Spray Tip is clogged. See Clear Spray Tip Clog, page 21
Sprayer lost prime. Reprime sprayer. See Fill Pump
(Prime Pump), page 16.
See Troubleshooting, page 36.
When paint is sprayed, it runs down
the wall or sags.
Material is going on too thick. Move gun faster.
Choose a Spray Tip with smaller hole
size.
Choose Spray Tip with wider fan.
Make sure gun is far enough from
surface.
When paint is sprayed, coverage is
inadequate.
Material is going on too thin. Move gun slower.
Choose Spray Tip with larger hole
size.
Choose Spray Tip with narrower fan.
Make sure gun is close enough to
surface.
Fan pattern varies dramatically while
spraying.
Pressure control switch is worn and
causing excessive pressure variation.
Take sprayer to Graco/M
authorized service center.
AGNUM
Cannot trigger spray gun. Spray gun trigger lock is engaged. Rotate trigger lock to disengage
trigger lock.
Paint is coming out of pressure
control switch.
Pressure control switch is worn. Take sprayer to Graco/M
authorized service center.
Paint is leaking through Drain Tube. Sprayer is over pressurizing. Take sprayer to Graco/M
AGNUM
AGNUM
authorized service center.
Paint leaks down outside of pump. Pump packings are worn. Replace pump. See Pump Repair,
page 34.
Motor is hot and runs intermittently.
Motor automatically shuts off due to
excessive heat. Damage can occur if
cause is not corrected.
Vent holes in enclosure are plugged
or sprayer is covered.
Extension cord is too long or not a
Keep vent holes clear of obstructions
and overspray and keep sprayer open
to air.
Replace extension cord.
heavy enough gauge.
Unregulated electrical generator
being used has excessive voltage.
Use electrical generator with a proper
voltage regulator.
Motor needs to be replaced. Take sprayer to Graco/Magnum
authorized retailer, distributor, or
service center.
Online Resources
Visit Our Website: magnum.graco.com
Operational Videos: magnum.graco.com/magop/
Manuals: magnum.graco.com/support/#manuals
Parts Online: magnum.graco.com/partsonline/
Material Compatibility: magnum.graco.com/downloads/MaterialCompatibility.pdf
3A6419B EN 39
ProX17, ProX19, ProLTS170 Stand Sprayer
Ref. Torque
140-160 in-lb (16-18 N•m)
30-35 in-lb (3.5-4.0 N•m)
110-120 in-lb (12-14 N•m)
45-55 in-lb (5-6 N•m)
123
4
See page 48.
1
2
3
4
3
2
2
2
ProX17, ProX19, ProLTS170 Stand Sprayer Parts
40 3A6419B EN
ProX17, ProX19, ProLTS170 Stand Sprayer
ProX17, ProX19, ProLTS170 Stand Sprayer Parts List
Ref. Part Description
1 17F756 KIT, repair, motor,
1a 287770 FAN 1
2 17J863 KIT, gear and yoke 1
3 17J173 CORD, power 1
4 17J864 KIT, yoke 1
6 117493 SCREW, mach, hex,
7 17J874 KIT, pump complete 1
8 17J865 SHIELD, motor, blue
9 118444 SCREW, mach, hwhd
10 17J866 COVER, front includes
10a 128551 CABLE, jumper, PC 1
10b 17F262 COVER, wire 1
12 115478 SCREW, mach, Torx,
13 15X737 SWITCH, bracket 1
14 17F233 COVER, pump,
15 17J867
15a 119276 FUSE, 12.5A slow
16 117501 SCREW, plastite 1
17 24Y329
18 115498
19 17G328 PLATE, motor mount 1
20 16E836 KIT, right leg includes
21 16E837
21a 15J695 CAP, tube 2
22 260212 SCREW, hwh, thread
23 15J699
24 276864 HANDLE, sprayer 1
25 116139 GRIP, handle 1
27 LABEL, front
17J031
120V includes 1a, 22
washer head
includes 9 and labels
10-24 x 0.5 in.
9, 10a, 10b, 12, 14
pan hd
locking
KIT, control board
120V includes 15a, 16
blow
KIT, switch, repair
includes 13
SCREW, mach, slot,
hex whd
21a, 22, 23
KIT, left leg includes
21a, 22, 23
forming
CAP, tube 2
ProX17 1
Qty.
Ref. Part Description
1
1
1
3
1
4
1
1
1
1
1
1
1
12
17J033
17J032
30 247340 HOSE, cpld,
31
243012 Models 17G177,
246506 Model 17K438 1
32 115099 WASHER, hose 1
34 244035 DEFLECTOR, barbed 1
35 115489 CLAMP, drain tube 2
36 195084 TUBE, drain 1
37 24V074 KIT, tube, suction
37a 197607 TUBE, suction
38 116295 CLAMP, tube 1
39 195400 CLIP, spring 2
40 KIT, inlet screen 1
288716 ProX17 and ProX19
257002 ProLTS170
45 17H422 CUP, suction/drain 1
56
17J027 LABEL, warning 1
57 179960 CARD, medical alert
60 17Y786 GUIDE, Magnum quick
61 115648 VALVE, power flush
62 17S980 FLUID, pump armor, 8
64 17Y794 TAG, hang, tip (not
65 15G026 TAG, warning, hose,
17L305 KIT, conversion, lacquer,
Replacement Danger and Warning labels,
tags, and cards are available at no cost.
ProX19 1
ProLTS170 1
1/4 in. x 50 ft
GUN, spray, SG3
17G179, 17H198
includes 32, 34, 35, 36,
37a, 38, 39, 40
includes 32
(not shown)
guide, (not shown)
(not shown)
oz (not shown)
shown)
(not shown)
stand (sold separate)
Qty.
1
1
1
1
1
1
1
1
1
1
3A6419B EN 41
ProX21 Stand Sprayer Parts
Ref. Torque
140-160 in-lb (16-18 N•m)
30-35 in-lb (3.5-4.0 N•m)
110-120 in-lb (12-14 N•m)
123
See page
48.
2
3
1
3
2
2
2
2
ProX21 Stand Sprayer Parts
42 3A6419B EN
ProX21 Stand Sprayer Parts
ProX21 Stand Sprayer Parts List
Part Description
Ref.
1 MOTOR, 120V includes
17K684 Series A 1
17F757 Series B 1
1a 16X980 FAN 1
2 17J869 KIT, gear and yoke 1
3 17J173 CORD, power 1
4 17J864 KIT, yoke 1
6 117493 SCREW, mach, hex,
7 17J875 KIT, pump complete 1
8 SHIELD, motor, blue
17K688 Series A 1
17J865 Series B 1
9 118444 SCREW, mach, hwhd
10 17J866 COVER, front includes
10a 128551 CABLE, jumper, PC 1
10b 17F262 COVER, wire 1
12 115478 SCREW, mach, Torx,
13 15X737 SWITCH, bracket 1
14 17F233 COVER, pump, locking 1
15 17J867
15a 119276 FUSE, 12.5A slow blow 1
16 117501 SCREW, plastite 1
17 24Y329
18 115498
19 17G329 PLATE, pump 1
20 15E823 FRAME, standmount 1
22 260212 SCREW, hwh, thread
23 15G857 CAP, leg 4
24 276864 HANDLE, sprayer 1
1a, 22
washer head
includes 9, 56
10-24 x 0.5 in.
9, 10a, 10b, 12, 14
pan hd
KIT, control board 120V
includes 15a, 16
KIT, switch, repair
includes 13
SCREW, mach, slot,
hex whd
forming
Qty.
Part Description
Ref.
25 116139 GRIP, handle 1
27 17J035 LABEL, front, ProX21 1
30 247340 HOSE, cpld,
31 243012 GUN, spray,SG3 1
37 17J870 KIT, suction set
37a 17J719 HOSE, suction 1
1
43 122667 SCREW, drill, hex,
44 17J884 TUBE, drain includes 461
45 15G838 CUP, suction/drain 1
46 244035 DEFLECTOR, barbed 1
47 245673 KIT, strainer 1
3
48 404989 STRAP, tie 1
49 115099 WASHER, hose 1
1
50 117559 O-ring 2
56 17J027 LABEL, warning 1
57 179960 CARD, medical alert
4
60 17Y786 GUIDE, Magnum quick
61 115648 VALVE, power flush
1
62 244168 FLUID, pump armor, 8
64 17Y794 TAG, hang, tip (not
1
65 288686 ADAPTER, power flush
1
66 15G026 TAG, warning, hose,
4
Replacement Danger and Warning labels,
tags, and cards are available at no cost.
1/4 in. x 50 ft
includes 37a, 44, 46,
47, 48, 49, 50
washer head
(not shown)
guide, (not shown)
(not shown)
oz (not shown)
shown)
(not shown)
(not shown)
Qty.
1
1
1
1
1
1
1
1
1
1
3A6419B EN 43
ProX17, ProX19, ProLTS190 Cart Sprayer
Ref. Torque
30-35 in-lb (3.5-4.0 N•m)
110-120 in-lb (12-14 N•m)
45-55 in-lb (5-6 N•m)
234
2
2
3
3
2
See page 48.
4
2
ProX17, ProX19, ProLTS190 Cart Sprayer Parts
44 3A6419B EN
ProX17, ProX19, ProLTS190 Cart Sprayer
ProX17, ProX19, ProLTS190 Cart Sprayer Parts List
Part Description
Part Description
Ref.
1 17F756 MOTOR, 120V
includes1a, 22
1a 287770 FAN 1
2 17J863 KIT, gear and yoke 1
3 17J173 CORD, power 1
4 17J864 KIT, yoke 1
7 17J874 KIT, pump complete 1
8 17J865 SHIELD, motor, blue
includes 9 and labels
9 118444 SCREW, mach, hwhd
10-24 x 0.5 in.
10 17J866 COVER, front includes
9, 10a, 10b, 12, 14
10a 128551 CABLE, jumper, PC 1
10b 17F262 COVER, wire 1
12 115478 SCREW, mach, Torx,
pan hd
13 15X737 SWITCH, bracket 1
14 17F233 COVER, pump, locking 1
15 17J867 KIT, control board 120V
includes 15a, 16
15a 119276 FUSE, 12.5A slow blow 1
16 117501 SCREW, plastite 3
17 24Y329 KIT, switch, repair
includes 13
18 115498 SCREW, mach, slot,
hex whd
19 17G541 PLATE, motor, mount 1
20 LEG, right
262014 ProX17 includes 22, 54, 551
17K185 ProX19 and ProLTS190
includes 54, 55
21 LEG, left
262012 ProX17 includes 22, 54, 551
17K186 ProX19 and ProLTS190
includes 54, 55
22 260212 SCREW, hwh, thread
forming
26 24V073 TUBE, suction,
assembly includes 26a,
43, 44, 45, 46, 47, 48,
49, 61
26a 16H348 TUBE, suction
includes 49
27 LABEL, front
17J031 ProX17 1
17J033 ProX19 1
17J034 ProLTS190 1
30 247340 HOSE, cpld,
1/4 in. x 50 ft
31 GUN, spray, SG3
Qty.
Ref.
1
1
3
1
1
1
1
1
1
8
1
1
1
243012 Models 17G178,
17G180, 17H206
246506 Model 17K439 1
34 112612 CAP, hub 2
35 WHEEL includes 34
24Y324 ProX17 2
17K546 ProX19, ProLTS190 2
36 115480 KNOB, T-handle 2
37 120689 NUT, hex, acorn,
5/16-18
38 17J430 HOOK, pail 1
39 AXLE, cart
15R602 ProX17 1
16W362 ProX19, ProLTS190 1
40 16H350 RACK, hose 1
41 HANDLE, cart
16H354 ProX17 1
16H353 ProX19, ProLTS190 1
42 120788 SCREW, carriage 2
43 115489 CLAMP, drain tube 1
44 195108 TUBE, drain 1
45 195400 CLIP, spring 1
46 244035 DEFLECTOR, barbed 1
47 STRAINER, inlet 1
288716 ProX17 and ProX19
257002 ProLTS190
48 116295 CLAMP, tube 1
49 115099 WASHER, hose 1
54 15J699 CAP, tube 2
55 CAP, tube
15J695 ProX17 2
16W505 ProX19, ProLTS190
right
16W517 ProX19, ProLTS190 left 1
56 17J027 LABEL, warning 1
57 179960 CARD, medical alert
(not shown)
60 17Y786 GUIDE, Magnum quick
guide, (not shown)
61 115648 VALVE, power flush
(not shown)
62 17S980 FLUID, pump armor, 8
oz (not shown)
64 17Y794 TAG, hang, tip (not
shown)
65 15G026 TAG, warning, hose,
(not shown)
17J873 KIT, conversion, lacquer,
cart (sold separate)
Replacement Danger and Warning labels,
tags, and cards are available at no cost.
Qty.
1
2
1
1
1
1
1
1
1
3A6419B EN 45
ProX21 Cart Sprayer Parts
Ref. Torque
30-35 in-lb (3.5-4.0 N•m)
110-120 in-lb (12 -14 N•m)
2
3
2
2
3
3
2
See page 48.
2
ProX21 Cart Sprayer Parts
46 3A6419B EN
ProX21 Cart Sprayer Parts
ProX21 Cart Sprayer Parts List
Part Description
Ref.
1 KIT, repair, motor, 120V
17K684 Series A 1
17F757 Series B 1
1a 16X980 FAN 1
2 17J869 KIT, gear and yoke 1
3 17J173 CORD, power 1
4 17J864 KIT, yoke 1
7 17J875 KIT, pump complete 1
8 SHIELD, motor, blue
17K688 Series A 1
17J865 Series B 1
9 118444 SCREW, mach, hwhd
10 17J866 COVER, front includes
10a 128551 CABLE, jumper, PC 1
10b 17F262 COVER, wire 1
12 115478 SCREW, mach, Torx,
13 15X737 SWITCH, bracket 1
14 17F233 COVER, pump, locking 1
15 17J867
15a 119276 FUSE, 12.5A slow blow 1
16 117501 SCREW, plastite 3
17 24Y329
18 115498
20 17C485 FRAME 1
22 260212 SCREW, hwh, thread
26 17J871 TUBE, suction, intake
26a 17L281 TUBE, suction 1
27 17J035 LABEL, front, ProX21 1
includes 1a, 22
includes 9, 56
10-24 x 0.5 in.
9, 10a, 10b, 12, 14
pan hd
KIT, control board 120V
includes 15a, 16
KIT, switch, repair
includes 13
SCREW, mach, slot,
hex whd
forming
includes 26a, 44, 46,
47, 49, 50 51, 52, 53
Qty.
Part Description
Ref.
30 247340 HOSE, cpld,
31 243012
34 119452 CAP, hub 2
35 119451 WHEEL,
38 17J430 HOOK, pail 1
41 287489 HANDLE, assembly,
42 109032 SCREW, machine, pnh 4
44 17L393 TUBE, drain 1
46 244035 DEFLECTOR, barbed 1
47 245673 STRAINER, inlet 1
49 115099 WASHER, hose 1
3
50 103413 PACKING, O-ring 1
51 15B652 WASHER, suction 1
1
52 15E813 NUT, jam 1
53 195400 CLIP, spring 1
56 17J027 LABEL, warning 1
57 179960 CARD, medical alert
60 17Y786 GUIDE, Magnum quick
61 115648 VALVE, power flush
1
62 244168 FLUID, pump armor,
64 17Y794 TAG, hang, tip (not
1
1
65 288686 ADAPTER, power flush
66 15G026 TAG, warning, hose,
4
1
Replacement Danger and Warning labels,
tags, and cards are available at no cost.
1/4 in. x 50 ft
GUN, spray,SG3 1
semi-pneumatic
Hi-cart
(not shown)
guide, (not shown)
(not shown)
8 oz (not shown)
shown)
(not shown)
(not shown)
Qty.
1
2
1
1
1
1
1
1
1
1
3A6419B EN 47
ProXChange Pump Parts
Ref. Torque
140-160 in-lb (16-18 N•m)
30-35 in-lb (3.4-4.0 N•m)
30-35 ft-lb (40-48 N•m)
220-250 in-lb (25-28 N•m)
320-380 in-lb (36-43 N•m)
12345
1
28a
28c
28b
6
4
6a
2
3
8
9
10
11
25
30
16
28
21
7
7b
7a
5
15
14
13
12
42
ti27261a
29
1
2
3
5
5
4
4
4
ProXChange Pump Parts
48 3A6419B EN
ProXChange Pump Parts
ProXChange Pump Parts List
i
Part Description
Ref.
1 17G447 HOUSING, pump
2 17D364 GUIDE, ball
3 128336 SPRING, compression
4 105445 BALL, 0.5 in. 1
5 117501 SCREW, mach, slot
6 KIT, inlet housing
17J876 ProX17, ProX19
17J877 ProX21
6a 124582 O-ring
7 17J878 KIT, PushPrime
7a 16P303 PACKING, O-ring 1
7b 17G540 LABEL, PushPrime
235014 VALVE, drain, assy
8
9 224807 BASE, valve
10 187625 HANDLE, valve, drain
11 111600 PIN, grooved
12 288747 KIT, filter
HWH
includes 7a, 7b
Qty.
1
1
1
2
1
1
1
1
1
1
1
1
1
1
Part Description
Ref.
13 120776 PACKING, O-ring
14 24Y327 KIT, repair outlet
includes 12,13
15 17J880 KIT, outlet valve repair
includes 42
16 128323 SPRING, valve
21 16D531 PACKING, O-ring
25 24Y472 KIT, repair, piston pump 1
28 17J881 KIT, pressure control
includes 5, 28a, 28b,
28c, 29, 30
28a 15A464 LABEL, control
28b 17V191 LABEL, control
28c 106555 O-ring 1
29 17F227 BRACKET, electrical
connector
30 17F229 KIT, shield, wire 1
42 122486 PACKING, O-ring 1
Qty.
1
1
1
1
1
1
1
1
1
3A6419B EN 49
Wiring Diagram - 110/120V
ti27233a
M
Wiring Diagram - 110/120V
50 3A6419B EN
Notes
Notes
3A6419B EN 51
Technical Specifications
Technical Specifications
US Metric
Sprayer
Maximum fluid working pressure 3000 psi 207 bar, 20.7 MPa
Maximum Delivery
ProX17, ProLTS170 0.34 gpm 1.3 lpm
ProX19, ProLTS190 0.38 gpm 1.4 lpm
ProX21 0.47 gpm 1.8 lpm
Maximum Spray Tip Size
ProX17, ProLTS170 0.017 in. 0.43 mm
ProX19, ProLTS190 0.019 in. 0.48 mm
ProX21 0.021 in. 0.53 mm
Fluid Outlet npsm 1/4 in. 1/4 in.
Generator Minimum 2500 W
Power Requirements
ProX17, ProX19,
ProLTS170, ProLTS190
ProX21
Dimensions
Height
ProX17, ProX19, ProLTS170
Stand
ProX21 Stand
ProX17 Cart
ProX19, ProLTS190 Cart
ProX21 Cart
Length
ProX17, ProX19, ProLTS170
Stand
ProX21 Stand 16.7 in. 42.4 cm
ProX17 Cart
ProX19, ProLTS190 Cart
ProX21 Cart
Width
ProX17, ProX19, ProLTS170
Stand
ProX21 Stand
ProX17 Cart
ProX19, ProLTS190 Cart
ProX21 Cart
Weight
ProX17, ProX19, ProLTS170
Stand
21.2 in. 53.9 cm
18.4 in. 46.7 cm
37.0 in. 94.0 cm
36.7 in. 93.0 cm
38.5 in. 97.8 cm
15.1 in. 38.4 cm
19.6 in. 49.8 cm
20.2 in. 51.3 cm
20.8 in. 52.8 cm
13.2 in. 33.5 cm
13.5 in. 34.3 cm
15.2 in. 38.6 cm
17.2 in. 43.7 cm
20.6 in. 52.3 cm
27.3 lb. 12.4 kg
110–120V, 8 A, 1Ø
110–120V, 12 A, 1Ø
52 3A6419B EN
Technical Specifications
US Metric
ProX21 Stand 25.0 lb. 11.3 kg
ProX17 Cart
ProX19, ProLTS190 Cart
ProX21 Cart
Storage temperature range
Operating temperature range
Materials of Construction
Wetted materials on all models stainless steel, brass, leather, ultra-high molecular weight
polyethylene (UHMWPE), carbide, nylon, aluminum, PVC,
polypropylene, fluoroelastomer, plated steel
Notes
* Startup pressures and displacement per cycle may vary based on suction condition,
discharge head, air pressure, and fluid type.
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.
37.5 lb. 17.0 kg
41.2 lb. 18.7 kg
49.5 lb. 22.5 kg
–30° to 160°F
–35° to 71°C
40° to 115°F
4° to 46°C
3A6419B EN 53
Graco Standard Warranty
Graco 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 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.
54 3A6419B EN
Graco Information
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the
nearest distributor.
3A6419B EN 55
All written and visual data contained in this document reflects the latest product information available at
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 3A6419
the time of publication.
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2018, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision B, February 2019
Loading...