For portable spray application of architectural paints and coatings. For professional use
only.
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
SP200/Mustang 2400 Model: Use water based or
mineral-spirit type material only. Do not use materials
having flash points lower than 70°F (21°C). This
Related Manuals
3A0994
See page 2 for model information, including maximum working pressure and approvals.
includes, but is not limited to, acetone, xylene,
toluene, or naptha. For more information about your
material request MSDS from distributor or retailer.
EN
SP200 Model 24F557
Mustang 2400 Model 24F559
Series A, B, C
SP300 Model 24F558
Mustang 3100 Model 24F560
Series A
Page 2
Models
Models
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.
Model NameSeries
SP200
Mustang 2400
SP300
Mustang 3100
A, B, C
A
Dispense Rate gpm
(lpm)
0.24 gpm
(0.91 lpm)
0.34 gpm
(1.29 lpm)
Hose Length and
Diameter
1/4 in. x 25 ft
(6.4 mm x 7.5 m)
1/4 in. x 50 ft
(6.4 mm x 15m)
Gun Model Maximum Working Pressure
200 Series2800 psi (19 MPa, 193 bar)
500 Series3000 psi (21 MPa, 207 bar)
23A0997F
Page 3
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 symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual, 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.
WARNING
WARNINGWARNINGWARNING
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 plug
illustrated in the figure below.
ti9164a
• 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.
3A0997F3
2
) minimum to carry the current that the product draws.
Page 4
Warnings
WARNING
WARNINGWARNINGWARNING
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 Airlessco conductive or
grounded high-pressure airless paint sprayer hoses.
• SP200/Mustang 2400 Model: Do not clean with materials having flash points lower than 70° F (21° C).
Use water-based material or mineral spirits-type material only. For complete information about your
fluid, request the MSDS from the fluid distributor or retailer.
• 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.
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.
• Use only 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.
43A0997F
Page 5
Warnings
WARNING
WARNINGWARNINGWARNING
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 Airlessco 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 3000 psi. Use Airlessco replacement parts or accessories that
are rated a minimum of 3000 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.
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 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.
• 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 Airlessco.
• Do not use the hose as a strength member to pull or lift the equipment.
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.
• Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier
for compatibility.
3A0997F5
Page 6
Warnings
WARNING
WARNINGWARNINGWARNING
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 MSDSs 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, hearing loss, inhalation of
toxic fumes, and burns. This 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.
63A0997F
Page 7
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.
•This sprayer requires
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
2
)
2
)
ti5573a
ti5572a
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
ti9207a
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.
3A0997F7
Page 8
Component Identification
Component Identification
A
B
C
D
E
F
F1
G
H
J
L
M
Q
R
S
T
U
V
X
Airless spray gunSprays fluid.
Power switchTurns sprayer ON and OFF.
Pressure control knobIncreases (clockwise) and decreases (counter-clockwise) fluid
pressure in pump, hose, and spray gun.
Pump fluid outlet fittingThreaded connection for paint hose.
InstaClean
(SP300, Mustang 3100)
ProX Power-Piston
Easy Access door, not shown)
(SP300, Mustang 3100)
Easy Access
(SP300, Mustang 3100)
Suction tubeDraws fluid from paint pail into pump.
Prime tube (with diffuser)Drains fluid in system during priming and pressure relief.
Prime/Spray valve
Inlet screenPrevents debris from entering pump.
Paint hose Transports high-pressure fluid from pump to spray gun.
Tip guardReduces risk of fluid injection injury.
Reversible spray tip
Gun trigger safety lever (page 10)Prevents accidental triggering of spray gun.
Gun fluid inlet fittingThreaded connection for paint hose.
Power Flush attachment Connects garden hose to suction tube for power flushing
Gun fluid filter Filters fluid entering spray gun to reduce tip clogs.
Pail Hanger
(SP300, Mustang 3100)
™
fluid filter
™
door
™
Pump (behind
• Filters fluid coming out of pump to reduce tip plugging and
improve finish.
• Self cleans only during pressure relief.
Pumps and pressurizes fluid and delivers it to paint hose.
Easy Access door permits quick access to outlet valve. To
remove door, insert flat blade of screwdriver into slot on the bottom of the door.
• In PRIME position (pointing down) directs fluid to prime
tube.
• In SPRAY position (pointing forward) 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.
water-base fluids.
For transporting pail by its handle.
83A0997F
Page 9
Component Identification
W
U
B
J
F1
F
H
C
X
G
L
E
R
Q
S
A
D
V
V
T
M
3A0997F9
Mustang 2
ASM 500
ti15983a
Page 10
Operation
Operation
See Operation manual 3A0994 for basic information on
sprayer set-up, flushing, and storage.
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
ti15981a
Trigger Locked Mustang 2
Trigger Unlocked Mustang 2
ti15980a
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.
ti2018a
2. Turn Prime/Spray valve to PRIME
to relieve pressure.
ti9346a
3. Hold gun firmly to side of pail.
Trigger the gun to relieve
pressure.
ti115987a
Trigger Locked ASM 500
Trigger Unlocked ASM 500
ti15979A
Pressure Control Knob Settings
High Pressure
Spray
Low Pressure
Spray
4. Engage trigger lock.
ti9207a
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 instructions in the Sprayer
or Gun Operation manual.
ti5597a
Prime/
Clean
Rolling
NOTE: To select function, align symbol on pressure control knob with setting indicator on sprayer.
103A0997F
Page 11
General Repair Information
Flammable materials spilled on hot, bare, motor
could cause fire or explosion. To reduce risk of burns,
fire or explosion, do not operate sprayer with cover
removed.
To reduce risk of serious injury, including electric
shock:
• Do not touch moving or electric pars with fingers
or tools while testing repair.
• Unplug sprayer when power is not required for
testing.
• Install all covers, gaskets, screws and washers
before you operate sprayer.
General Repair Information
NOTICE
• Do not run sprayer dry for more than 30 seconds.
Doing so could damage pump packings.
• Protect the internal drive parts of this sprayer
from water. Openings in the cover allow for air
cooling of the mechanical parts and electronics
inside. If water gets in these openings, the
sprayer could malfunction or be permanently
damaged.
• Prevent pump corrosion and damage from freezing. Never leave water or water-base paint in
sprayer when its not in use in cold weather.
Freezing fluids can seriously damage sprayer.
Store sprayer with Pump Armor to protect
sprayer during storage.
•Keep all screws, nuts, washers, gaskets, and electrical fittings removed during repair procedures. These
parts usually are not provided with replacement kits.
•Test repairs after problems are corrected.
•If sprayer does not operate properly, review repair
procedure to verify you did it correctly. See Basic
Troubleshooting, page 12 and Advanced Trouble-
shooting, page 17.
•Overspray may build up in the air passages.
Remove any overspray and residue from air passages and openings in the enclosures whenever
you service sprayer.
•Do not operate the sprayer without the cover in
place. Replace if damaged. Covers direct cooling air
around motor to prevent overheating.
3A0997F11
Page 12
Basic Troubleshooting
Basic Troubleshooting
Check everything in this Basic Troubleshooting table before you bring the sprayer to a Graco/Airlessco authorized
service center.
ProblemCauseSolution
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 clock-
wise to increase pressure setting.
Electric outlet is not providing
power.
Extension cord is damaged.Replace extension cord. Read
Sprayer electric cord is damaged.Check for broken insulation or wires.
Motor or control is damaged.Take sprayer to Graco/Airlessco
• Check that lighted plug on
sprayer is lit (this indicates
electric power at outlet).
• Reset building circuit breaker
or replace fuse.
Grounding and Electric Requirements, page 7.
Replace electric cord if damaged.
authorized service center.
123A0997F
Page 13
Basic Troubleshooting
ProblemCauseSolution
Pump does not prime.Prime/Spray Valve is in SPRAY
position.
Inlet screen is clogged or suction
tube is not immersed.
Pump was not primed with flushing
fluid.
Inlet valve check ball is stuck.Remove suction tube and place a
Turn Prime/Spray Valve to PRIME
position (pointing down).
Clean debris off inlet screen and
make sure suction tube is immersed
in fluid.
Remove suction tube from paint.
Prime pump with water or solvent-based flushing fluid, see Operation manual 3A0994.
pencil into the inlet section to dislodge the ball, allowing pump to
prime properly. Or, Power Flush
sprayer, see Operation manual
3A0994.
AutoPrime may need replacement.
Turn power switch ON and listen for
“tap” in pump. If you do not hear
“tap”, AutoPrime is damaged. Take
sprayer to Graco/Airlessco authorized service center.
Inlet valve check ball or seat is dirtyRemove inlet fitting. Clean or
replace ball and seat.
Outlet valve check ball is stuck.SP300, Mustang 3100: Insert
screw driver in slot and remove
Easy-Access door, page 8. Unscrew
outlet valve with a 3/4 in. socket.
Remove and clean assembly.
Suction tube is leaking.Check suction tube for cracks and
cuts. Make sure suction tube clamp
is on hose. Replace suction tube if
cracked or damaged.
Pump valves are worn.Check for worn valves, see page 14.
3A0997F13
Page 14
Basic Troubleshooting
ProblemCauseSolution
Pump cycles but does not build up
pressure.
Pump cycles, but paint only dribbles
or spurts when spray gun is triggered.
Prime/Spray valve in PRIME position (pointing down).
Turn Prime/Spray valve to SPRAY
position (pointing forward).
Pump is not primed.Prime pump, see Operation manual
3A0994.
Inlet screen is clogged or suction
tube is not immersed.
Clean debris off inlet screen and
make sure suction tube is immersed
in fluid.
Suction tube is leaking.Check suction tube for cracks and
cuts. Make sure suction tube clamp
is on hose. Replace suction tube if
cracked or damaged.
Prime/Spray Valve is worn or
obstructed with debris.
Take sprayer to Graco/Airlessco
authorized service center.
Pump check ball is stuck.Read Pump does not prime sec-
tion in Troubleshooting, page 13.
Pressure is set too low.Slowly turn pressure control knob
clockwise to increase pressure setting which will turn motor on to build
pressure.
Spray tip is clogged.Unclog spray tip, see Operation
manual 3A0994.
InstaClean fluid filter is clogged.
(SP300, Mustang 3100)
Clean or replace InstaClean fluid filter, see Operation manual 3A0994.
Spray gun fluid filter is clogged.Clean or replace gun fluid filter, see
Operation manual 3A0994.
Spray tip is too large or worn.Replace tip.
143A0997F
Page 15
Basic Troubleshooting
ProblemCauseSolution
Pressure is set at maximum but
cannot achieve a good spray pattern.
Spray tip is clogged.Unclog spray tip, see Operation
manual 3A0994.
Reversible spray tip is in UNCLOG
position.
Rotate arrow-shaped handle on
spray tip so it points forward on gun.
Spray tip is too large for sprayer.Select smaller spray tip.
Spray tip is worn beyond capability
Replace spray tip.
of sprayer.
Extension cord is too long or not
heavy enough gauge.
Replace extension cord. See
Grounding and Electrical
Requirements, page 7.
Spray gun fluid filter is clogged.Clean or replace spray gun fluid fil-
ter, see Operation manual 3A0994.
InstaClean fluid filter is clogged.
(SP300/Mustang 3100)
Clean or replace InstaClean fluid filter, see Operation manual 3A0994.
Inlet screen is clogged.Clean debris off inlet screen.
Pump valves are worn.Check for worn pump valves.
Prime sprayer with paint
Trigger gun momentarily. When trig-
ger is released, pump should cycle
momentarily and stop. If pump continues to cycle, pump valves may be
worn.
Spray gun stopped spraying. Pump
is not cycling.
When paint is sprayed, it runs down
the wall or sags.
When paint is sprayed, coverage is
inadequate.
Material is too thick.Thin material.
Hose is too long (if extra section is
Remove extra section of hose.
added).
Spray tip is clogged.Unclog spray tip, see Operation
manual 3A0994.
Coat is going on too thick.Move gun faster.
Choose a tip with smaller hole size.
Choose tip with wider fan.
Make sure gun is far enough from
surface.
Coat is going on too thin.Move gun slower.
Choose tip with larger hole size.
Choose tip with narrower fan.
Make sure gun is close enough to
surface.
3A0997F15
Page 16
Basic Troubleshooting
ProblemCauseSolution
Fan pattern varies dramatically
while spraying.
OR
Pressure control switch is worn and
causing excessive pressure variation.
Take sprayer to Graco/Airlessco
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 10.
Paint is coming out of pressure control switch.
Prime/Spray valve actuates automatically relieving pressure through
Pressure control switch is worn.Take sprayer to Graco/Airlessco
authorized service center.
System is over pressurizing.Take sprayer to Graco/Airlessco
authorized service center.
prime tube.
Paint leaks down outside of pump.Pump packings are worn.Take sprayer to Graco/Airlessco
authorized service center.
Motor is hot and runs intermittently.
Motor automatically shuts off due to
excessive heat. Damage can occur
if cause is not corrected. See Ther-mal Overload, page 7.
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 7.
Unregulated electrical generator
being used has excessive voltage.
Use electrical generator with a
proper voltage regulator. Sprayer
requires 120VAC, 60 Hz, 1500-Watt
generator.
163A0997F
Page 17
Advanced Troubleshooting
See Basic Troubleshooting first, page 12 for problems that are more easily remedied.
General Problem: Motor Does Not Operate
Specific ProblemCauseSolution
Advanced Troubleshooting
Power switch is on and
sprayer is plugged in; pump
does not cycle.
Basic mechanical problems.Paint is frozen or hardened in
See Basic Troubleshooting,
page 12.
pump.
Unplug sprayer from electrical outlet.
If paint is frozen in sprayer:
Do NOT try to start sprayer until completely
thawed or you may damage the motor, control
board, and/or drivetrain.
1. Turn power switch OFF.
2. Place sprayer in warm area for several hours.
3. Plug sprayer in.
4. Turn power switch ON and flush sprayer with
water or mineral spirits.
a.Turn on sprayer.
b.Turn prime valve to PRIME position.
If paint hardened in sprayer:
SP300, Mustang 3100: Replace pump pack-
ings. See List of Kits, page 26.
SP200, Mustang 2400: Replace complete
pump. See List of Kits, page 26.
Remove all residue from inlet and outlet valves.
Gears are damaged.
SP300, Mustang 3100: Yok e
is broken because pump is
locked up due to dried paint or
worn packings.
3A0997F17
Remove motor enclosure and rotate motor fan to
check for bad gears. If gears bind or slip, remove
pump cover and replace failed gears. See List of Kits, page 26.
Repair or replace using Gear/Yoke Kit. See List of Kits, page 26.
Replace pump packings on SP300 sprayers. See
List of Kits, page 26.
Page 18
Advanced Troubleshooting
Specific ProblemCauseSolution
Basic electrical problems.Motor overheated.Allow motor to cool for 45 minutes. Retry.
Electrical outlet is damaged.Reset building circuit breaker or replace fuse. Try
another outlet.
Check electric supply with volt meter. Meter must
read 85 to 130V AC. If voltage is too high, do not
plug sprayer in until outlet is corrected.
Control board leads are
improperly fastened, improperly mated, or
corroded.
Replace any loose terminals. Make sure all leads
and harnesses are firmly connected.
SP300, Mustang 3100: Check pressure control
harness connection on front side of drive housing.
Clean control board terminals. Securely reconnect leads.
Motor brushes are worn.Check length of BOTH brushes (brushes do not
wear evenly on both sides of the motor). Brush
length must be 0.25 in. (6.4mm). If brushes are
worn replace motor using Motor Kit, page 26.
Motor armature commutator
damaged.
Check for burn spots, gouges and extreme
roughness. If damaged or if shorts are evident,
replace motor using Motor Kit, page 26.
Fuse is blown.Find cause for blown fuse before replacing. Turn
the motor fan to check for a locked gear or pump.
Use a continuity meter to check for a short to
ground caused by a pinched wire.
SP300, Mustang 3100: Replace the fuse with
correct fuse kit. See List of Kits, page 26.
SP200: The fuse is not replaceable. Replace
control board. See List of Kits, page 26.
Motor armature shorting.Check for shorts. See Motor Diagnostics, page
23. If shorts are evident, replace motor using
Motor Kit, page 26.
Motor armature open circuit.Check motor leads for continuity. If open circuit,
check brushes. Use Motor Kit to replace motor.
See List of Kits, page 26.
Control board damaged.
CAUTION: Do not perform
control board diagnostics until
See Control Board Diagnostics, page 25.
Replace control board if damaged using Control Board Kit, page 26.
you have determined the
armature is good. A damaged
armature can burn out a good
control board.
183A0997F
Page 19
Specific ProblemCauseSolution
Sprayer Wiring Problems
Sprayer power cord damaged. Unplug sprayer power cord.
Advanced Troubleshooting
NOTE: Remove enclosure
mounting screws and pull
enclosure away from drive
housing. Take care not to pull
on leads from electrical cord
and power switch.
Sprayer power switch
damaged.
Motor thermal overload cutoff
switch damaged.
WARNING: See Startup
Hazard After Thermal
Overload onpage 7.
Disconnect black power cord wire at power switch.
Unplug in-line connection white cord wire.
Plug in power cord.
Test voltage between black and white wires of
power cord. Meter must read 85 to 130V AC.
Replace power cord if no voltage.
1. Unplug sprayer power cord.
2. Disconnect black control board wire at power
switch.
3. Unplug in-line connection white cord wire.
4. Plug in power cord.
5. Turn power switch ON.
6. Test voltage between open terminal of power
switch and white power cord wire. Meter must
read 85 to 130V AC.
7. Replace power switch if no voltage.
1. Unplug sprayer power cord.
2. Remove motor harness from control card.
3. Check for continuity between yellow leads or
motor harness. (SP300, Mustang 3100)
4. If thermal relief switch is open (no continuity)
allow motor to cool.
5. If switch remains open after motor cools,
replace motor using Motor Kit, page 26.
6. If thermal relief switch closes after motor
cools, find correct cause of overheating.
3A0997F19
Page 20
Advanced Troubleshooting
General Problem: Circuit Breaker is Tripping
Specific ProblemCauseSolution
Building circuit breaker opens
as soon as sprayer is turned
on.
NOTE: Remove enclosure
mounting screws and pull
enclosure away from drive
housing. Take care not to pull
on leads from electrical cord
and power switch.
Building circuit breaker opens
as soon as sprayer is plugged
into outlet and sprayer is NOT
turned on.
NOTE: Remove enclosure
mounting screws and pull
enclosure away from drive
housing. Take care not to pull
on leads from electrical cord
and power switch.
Sprayer electrical wiring is
pinched or insulation is damaged.
Wires between pressure control switch and control board
are pinched.
Motor armature is shorting.Check for shorts. See Motor Diagnostics, page
Control board is damaged.
CAUTION: Do not perform
control board diagnostics until
you have determined the
armature is good. A bad
motor armature can burn out
a good motor control board.
Sprayer power cord damaged.
Sprayer power switch damaged.
Repair or replace any damaged wiring or terminals. Securely reconnect wires.
23. If shorts are evident, replace motor using
Motor Kit, page 26.
See Control Board Diagnostics, page 25.
Replace control board if damaged using Control Board Kit, page 26.
Unplug sprayer power cord.
Disconnect black power cord wire at power
switch.
Unplug in-line connection white cord wire.
Plug in power cord.
Test voltage between black and white wires of
power cord. Meter must read 85 to 130V AC.
Replace power cord if no voltage.
1. Unplug sprayer power cord.
2. Disconnect black control board wire at power
switch.
3. Unplug in-line connection white cord wire.
4. Plug in power cord.
5. Turn power switch ON.
6. Test voltage between open terminal of power
switch and white power cord wire. Meter must
read 85 to 130V AC.
7. Replace power switch if no voltage.
Also see Basic Electrical Problems, and Sprayer Wiring Problems, pages 18 - 19.
203A0997F
Page 21
Advanced Troubleshooting
General Problem: Erratic Motor Operation
Specific ProblemCauseSolution
Sprayer quits after running for
5 to 10 minutes
General Problem: Low or Fluctuating Output
Pump cycles, but output is low
or surging.
Building circuit is overloaded.Remove other loads from building circuit or find
another circuit that has less load. See Ground-ing and Electric Requirements, page 7.
Electrical outlet supplying
wrong voltage.
Also see Basic Electrical Problems and Sprayer Wiring Problems, pages 18 - 19.
Motor is overheating.
Warning: See Thermal Over-load, page 7.
See Basic Troubleshooting,
page 12.
Worn or obstructed inlet and
outlet valves.
Try another outlet. Check electric supply with volt
meter. Meter must read 85 to 130V AC. If voltage
is too high, do not use outlet until corrected.
After motor cools, operate sprayer and determine if motor stops when trigger on gun is
released. If sprayer runs continuously, replace
Pressure Control. See List of Kits, page 26.
Relieve pressure and remove motor enclosure.
Turn motor fan by hand to check for binding
gears or seized pump. See List of Kits, page 26.
Check for worn pump valves as follows:
Prime sprayer with paint. Turn the Prime/Spray
valve to SPRAY position. Turn pressure control
fully clockwise.
Trigger spray gun briefly.
When spray gun trigger is released pump should
cycle momentarily and stop.
If pump continues to cycle, pump valves may be
worn or obstructed.
For replacement inlet and outlet valve kits, see
List of Kits, page 26.
Prime/Spray valve is leaking
out drain line when
Prime/Spray valve is in
SPRAY position.
Voltage from electrical outlet
is too low. Low voltages
reduce sprayer performance.
Extension cord is too long or
not heavy enough gauge.
3A0997F21
Check Prime/Spray valve for debris trapped on
seat and for worn parts. Torque to 130-180 in-lb
(15.8-18.1 N•m). Replace if parts are worn using
Prime/Spray Valve Kit, page 26.
Check voltage of outlet. Meter must read 85 to
130V AC.
Replace extension cord.
See Grounding and Electrical Requirements,
page 7.
Page 22
Advanced Troubleshooting
Pump cycles, but output is low
or surging.
Motor runs and pump cycles,
but pressure does not build
up.
Leads from motor or pressure
switch to control board are
damaged, loose, pinched, or
overheated.
Motor brushes are worn.Check length of BOTH brushes (brushes do not
Motor brush springs are broken.
Motor brushes are binding in
brush holders.
Motor stops before sprayer
reaches correct pressure
(stall pressure is too low).
Control board is damaged.
CAUTION: Do not perform
control board diagnostics until
you have determined the
armature is good. A damaged
armature can burn out a good
control board.
Intake valve or outlet valve is
not seating properly.
Pump packings are worn or
damaged.
Be sure terminals are centered and firmly connected. Inspect for pinched wiring and wiring
insulation and terminals for signs of overheating.
Replace any loose terminals or damaged wiring.
Securely reconnect terminals.
wear evenly on both sides of the motor). Brush
length must be 0.25 in. (6.4mm). If brushes are
worn replace motor using Motor Kit, page 26.
If springs are broken, replace motor using Motor Kit, page 26.
Clean brush holders. Remove carbon dust with
small cleaning brush.
Replace pressure control using Pressure Con-trol Switch Kit, page 26.
See Control Board Diagnostics, page 25. If
damaged, replace control board using Control Board Kit, page 26.
Remove and clean inlet valves and outlet valves.
Replace if necessary. See List of Kits, page 26.
Check for leaking around pump.
SP300, Mustang 3100: Replace pump pack-
ings. See List of Kits, page 26.
SP200, Mustang 2400: Replace complete
pump. See List of Kits, page 26.
General Problem: Excessive Pressure Build Up
Prime/Spray Valve actuates
automatically, relieving pressure through drain tube.
223A0997F
Pressure control switch has
pinched wires.
Water or paint entered pressure control switch or shorted
control board.
Control board failed.See Control Board Diagnostics, page 25.
Replace pressure control switch using Pressure Control Switch Kit, page 26.
Use Pressure Control Switch Kit, to replace
switch. See List of Kits, page 26.
Replace damaged control board using Control Board Kit, page 26.
Page 23
Motor Diagnostics (SP200, Mustang 2400)
Motor Diagnostics (SP200, Mustang 2400)
If Motor Diagnostics reveal a damaged motor or if motor
brushes are shorter than 1/4 in. (6.4 mm) replace the
motor using Motor Kit, page 26.
Setup
1. Unplug power cord and Relieve Pressure, page 10.
2. Remove enclosure and disconnect two black motor
leads to control board (see Wiring Diagram, page
33).
3. Remove motor fan cover by gently prying up on
retention tabs on sides of motor. Motor shaft should
spin easily when turning fan. If motor shaft does not
turn easily, there is a problem with pump, gears, or
motor (see Troubleshooting, page 12).
4. Inspect motor windings for evidence of overheating.
If windings appear burnt and motor smells, replace
motor.
5. Use Ohmmeter to measure resistance across two
black motor leads. Resistance of motor should fall
within range of 1.5 to 4.5 ohms. If motor falls outside
resistance range or is open circuit, replace motor.
6. Use Ohmmeter to measure resistance of motor
leads to motor laminations. If resistance is not open
circuit, replace motor.
7. Inspect length of both brushes by looking at brush
torsion spring. If spring is not bottomed out in slot for
brush spring, brush length is acceptable. If brushes
are worn out, replace motor.
Motor Diagnostics (SP300, Mustang 3100)
Check for electrical continuity in motor armature, windings and brush as follows:
If Motor Diagnostics reveal a damaged motor or if motor
brushes are shorter than 1/4 in. (6.4 mm) or if the motor
shaft cannot turn, replace the motor using Motor Kit,
page 26.
Setup
1. Relieve Pressure, page 10.
2. Unplug electric cord.
3. Remove enclosure and disconnect motor leads from
control card.
4. Remove fan brace.
5. Remove four screws and front cover.
6. Remove yoke and guide rods.
7. Remove gear.
Armature Short Circuit Spin Test
Quickly turn motor fan by hand. There should not be
electrical shorts and fan should coast two or three revolutions before stopping. If fan does not spin freely, armature is shorted. Replace motor using Motor Kit, page
26.
Armature, Brushes and Motor Wiring Open
Circuit Test (Continuity)
1. Connect red and black motor leads together with
test lead.
2. Turn motor fan by hand, about two revolutions per
second.
3. If there is an uneven resistance or no resistance,
replace motor using Motor Kit, page 26.
3A0997F23
Page 24
Pressure Control Switch Diagnostics
Pressure Control Switch Diagnostics
SP200, Mustang 2400, SP300, Mustang 3100
If pressure control switch diagnostics reveal a damaged
pressure control, replace it with the correct Pressure Control Switch Kit, see page 26. SP200 and Mustang
2400 sprayers have different pressure control kits
because stall pressure is preset at the factory.
1. Unplug power cord and Relieve Pressure, page 10.
2. If paint is leaking from pressure control switch
between pressure control knob and base, replace
pressure control switch.
3. SP300 and Mustang 3100: Remove front cover,
yoke, and pins. Disconnect pressure control switch
connector from control board.
SP200 and Mustang 2400: Remove enclosure and
disconnect pressure control switch connector from
control board. Use finger to support control board
when removing pressure control switch connector.
4. Use ohmmeter to check for no continuity between
sprayer ground and both pressure control terminals
in connector. If either pressure control switch lead is
shorted to ground, pressure control switch wires
have been pinched to ground during assembly and
pressure control switch needs to be replaced.
5. Use Ohmmeter to measure across two terminals in
pressure control connector. No continuity or open
circuit should exist when pressure control knob is at
lowest pressure setting (full counter-clockwise).
Replace pressure control switch if continuity exists.
6. Using ohmmeter to measure across two terminals in
pressure control connector. Continuity or closed circuit should exist when pressure control knob is set
at maximum pressure (full clockwise). Replace
pressure control switch if no continuity exists.
243A0997F
Page 25
Control Board Diagnostics (SP300, Mustang 3100)
Control Board Diagnostics (SP300, Mustang 3100)
NOTE: Check for motor problems before replacing con-
trol board. A damaged motor may burn out a good control card.
Check for a damaged control board or pressure control
switch as follows:
1. Relieve Pressure, page 10.
2. Unplug electrical cord.
3. Remove four cover screws and front cover.
Remove motor enclosure.
4. Remove yoke and guide rods.
5. Remove gear.
6. Remove pressure control harness from control
board. Using tip of small, flat blade screwdriver,
press tab on right side connector to release.
7. Attach harness from a pressure control switch you
know is functioning correctly to control board.
NOTE: Pressure control switch does not have to be
installed in pump.
NOTE: Check for motor problems before replacing con-
trol board. A damaged motor may burn out a good control card
1. Unplug electrical cord and Relieve Pressure, page
10.
2. Remove enclosure and check all control board connectors for proper installation (see Wiring Diagram,
page 33).
3. Check fuse on control board. If fuse is blown, determine the cause before replacing control board (see
Advanced Troubleshooting, page 17).
Pump Diagnostics
NOTICE
To avoid damage, when repairing or cleaning the
pump, never submerge pump in water or allow fluid
to enter pressure control.
When pump packings wear, paint begins to leak down
the outside of the pump. At the first sign of leakage,
replace the pump or additional damage to the drive train
could occur.
1. SP200, Mustang 2400: Replace pump using Pump
Replacement (Complete). See List of Kits, page
26.
3A0997F25
SP300, Mustang 3100: Replace pump using Pump
Repair kit. See List of Kits, page 26.
2. If there is no paint leakage, see Advanced Troubleshooting, page 17. Pump may not be
defective.
Operating Temperature Range ✔. . . . . . . . . . . . . . . . . .40° F - 115° F (4° C - 46° C)
◆ 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.
◆❖ . . . . . . . . . . . . . . . . . .-30° F - 160° F (-35° C - 71° C)
◆❖ . . . . . . . . . . . . . . . . . .-30° F - 160° F (-35° C - 71° C)
Operating Temperature Range ✔. . . . . . . . . . . . . . . . . .40° F - 115° F (4° C - 46° C)
◆ 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.
3A0997F36
Page 37
Notes
Notes
3A0997F37
Page 38
Airlessco Standard Warranty
Airlessco warrants all equipment referenced in this document which is manufactured by Airlessco 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 Airlessco, Airlessco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined
by Airlessco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Airlessco’s
written recommendations.
This warranty does not cover, and Airlessco 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-Airlessco component parts. Nor shall Airlessco be liable for malfunction, damage or wear caused by the incompatibility of Airlessco equipment
with structures, accessories, equipment or materials not supplied by Airlessco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Airlessco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Airlessco distributor for verification
of the claimed defect. If the claimed defect is verified, Airlessco 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.
Airlessco’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.
AIRLESSCO 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 Airlessco. These items sold, but not manufactured by Airlessco (such as electric motors, switches, hose, etc.), are subject
to the warranty, if any, of their manufacturer. Airlessco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Airlessco be liable for indirect, incidental, special or consequential damages resulting from Airlessco 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 Airlessco, or otherwise.
FOR AIRLESSCO 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.
TO PLACE AN ORDER OR FOR SERVICE, contact your Airlessco distributor,
or call 1–800–223-8213 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.
Airlessco 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 3A0997
Airlessco, 3501 N. 4th Avenue, Sioux Falls, SD 57104
www.airlessco.com
Revised October 2012
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