Graco 17C301 Guide

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334649H
EN
Operation, Parts
RentalPro 210PC
Electric Airless Sprayers
For professional use only.
Not approved for use in explosive atmospheres or hazardous locations.
For portable airless spraying of architectural paints and coatings.
Model: 17C301, 25R758
3000 psi (207 bar, 20.7 MPa) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual and related manuals. Be familiar with
the controls and the proper usage of the equipment. Save these instructions.
Related Manuals
Gun - 312830 (SG3) Pump - 334599
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.

Contents
2334649H
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Extension Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Startup/Prime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Spray Tip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Clear Tip Clog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mechanical/Fluid Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Sprayer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Control Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
110474
Certified to CAN/CSA C22.2 No. 68
Conforms to UL 1450

Warnings
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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 an 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 (2.5mm2) 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.

Warnings
4334649H
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 antistatic 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 at 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 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.

Warnings
334649H 5
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. Use Graco 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 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 which you
are using it.

Warnings
6334649H
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.
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 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
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.

Component Identification
334649H 7
Component Identification
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K
S
M
N
V
P
R
A
B
D
JG
F
L
H
A ON/OFF Switch
B Pressure Control
D Prime Valve
F Tip Guard
G Spray Tip
HGun
J Airless Hose
K Power Cord
L Trigger Lock
M Drain Tube
N Fluid Intake
PPump
R Fluid Outlet
S Hanger
V Finger Guard / TSL Fill Point
Model/Serial Tag (Not shown, located
on bottom of unit.)

Grounding
8334649H
Grounding
This sprayer includes a ground wire with an
appropriate ground contact.
The plug must be plugged into an outlet that
is properly installed and grounded in
accordance with all local codes and
ordinances.
Do not modify the plug provided; if it does not
fit the outlet, have the proper outlet installed
by a qualified electrician.
Power Requirements
100-120V units require 100-120 VAC,
50/60 Hz, 13A, 1 phase.
Extension Cords
Use an extension cord with an undamaged
ground contact. If an extension cord is
necessary, use a 3-wire, 12 AWG (2.5 mm2)
minimum.
NOTE: Smaller gauge or longer extension
cords may reduce sprayer performance.
Pails
Solvent and oil-based fluids: 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 spray gun firmly to the side
of a grounded metal pail then trigger the gun.
The equipment must be grounded to
reduce the risk of static sparking and
electric shock. An electric or static spark
can cause fumes to ignite or explode. An
improper ground can cause electric shock.
A good ground provides an escape wire for
the electric current.
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Pressure Relief Procedure
334649H 9
Pressure Relief Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
1. Turn the ON/OFF switch to OFF
position. Wait 7 seconds for power to
dissipate.
2. Engage the trigger lock.
3. Turn pressure control to the lowest
setting. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a
grounded metal pail. Trigger the gun to
relieve pressure.
5. Engage the trigger lock.
This equipment stays pressurized until
pressure is manually relieved. To help
prevent serious injury from pressurized
fluid, such as skin injection, splashed fluid
and moving parts, follow the Pressure
Relief Procedure whenever sprayer is
stopped and before sprayer is cleaned or
checked, and before equipment is
serviced.
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Pressure Relief Procedure
10 334649H
6. Turn prime valve down. Put drain tube in
a pail. Leave prime valve in the down
(drain) position until you are ready to
spray again.
7. If you suspect the spray tip or hose is
clogged or that pressure has not been
fully relieved:
a. VERY SLOWLY loosen the tip
guard retaining nut or the hose end
coupling to relieve pressure
gradually.
b. Loosen the nut or coupling
completely.
c. Clear hose or tip obstruction.
Trigger Lock
Always engage the trigger lock when sprayer
is stopped to prevent the gun from being
triggered accidentally by hand or if dropped
or bumped.
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Setup
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Setup
When unpacking sprayer for the first time or
after long term storage perform setup
procedure. When first setup is performed
remove shipping plug from fluid outlet.
1. Connect Graco airless hose to fluid
outlet. Use wrenches to tighten securely.
2. Connect other end of hose to gun.
3. Use wrenches to tighten securely.
4. Engage the trigger lock.
5. Remove the tip guard.
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Setup
12 334649H
6. When unpacking sprayer for the first
time remove packaging materials from
inlet strainer. After long term storage
check inlet strainer for clogs and debris.
7. Fill throat packing nut with TSL to
prevent premature packing wear. Do this
daily or each time you spray.
a. Place the TSL bottle nozzle into the
top center opening in the grill at the
front of the sprayer.
b. Squeeze bottle to dispense enough
TSL to fill the space between the
pump rod and packing nut seal.
8. Make certain the ON/OFF switch is OFF.
9. Plug power supply cord into a properly
grounded electrical outlet.
10. Turn the prime valve down.
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Setup
334649H 13
11. Place fluid intake with drain tube in a
grounded metal pail partially filled with
flushing fluid. See Grounding, page 8.
12. Turn pressure control to lowest setting.
13. Turn ON/OFF switch to ON position.
14. Increase pressure 1/2 turn to start motor.
Allow fluid to flush through sprayer for
one minute.
15. Turn prime valve horizontal. Disengage
the trigger lock.
16. Hold a metal part of the gun firmly to a
grounded metal pail. Trigger gun and
flush until clean.
17. Turn ON/OFF switch to OFF position.
18. Engage the trigger lock.
19. After flushing storage fluid out of the
sprayer empty pail. Replace fluid intake
with drain tube in grounded metal pail
partially filled with flushing fluid. Use
water to flush water-based paint or
mineral spirits to flush oil-based paint.
20. Turn ON/OFF switch to ON position.
21. Turn prime valve horizontal. Disengage
the trigger lock.
22. Hold a metal part of the gun firmly to a
grounded metal pail. Trigger gun and
flush for one minute.
23. Turn ON/OFF switch to OFF position.
24. Engage the trigger lock.
25. Sprayer is now ready to start up and
spray.
NOTE: New sprayers are shipped with
storage fluid that must be flushed out with
mineral spirits prior to using the sprayer.
Check flushing fluid for compatibility with
material that is to be sprayed. A secondary
flush with a compatible fluid may be
necessary. Water for latex paint or mineral
spirits for oil-based paint.
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Startup/Prime
14 334649H
Startup/Prime
1. Perform Pressure Relief Procedure,
page 9.
2. Turn pressure control to lowest
pressure.
3. Turn the ON/OFF switch to ON position.
4. Place fluid intake in paint pail. Place
drain tube in a waste pail.
5. Increase pressure 1/2 turn to start motor.
Allow paint to circulate through sprayer
until paint flows out the drain tube.
6. Turn prime valve horizontal. Disengage
the trigger lock.
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15 s
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Startup/Prime
334649H 15
7. Hold gun against a grounded metal
waste pail. Trigger gun until paint
appears.
8. Move gun to a paint pail and trigger for 20
seconds. Release trigger and allow
sprayer to build pressure. Engage the
trigger lock.
9. Inspect for leaks. If leaks occur, perform
Pressure Relief Procedure, page 9,
then tighten all fittings and repeat
Startup procedure. If there are no leaks
continue with the next step.
10. Screw tip assembly onto gun and
tighten. See Spray Tip Installation,
page 16. For gun assembly instructions,
see separate gun manual.
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1 m
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20 s
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
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Operation
16 334649H
Operation
Spray Tip Installation
1. Perform Pressure Relief
Procedure, page 9.
2. Use spray tip (A) to insert
OneSeal™(B) into tip guard (C).
2. Insert Spray Tip.
3. Screw assembly onto gun. Tighten.
Spray
1. Spray test pattern. Adjust pressure to
eliminate heavy edges.
2. Use smaller tip size if pressure
adjustment cannot eliminate heavy
edges.
3. Hold gun perpendicular, 10-12 in. (25-30
cm) from surface. Spray back and forth;
overlap by 50%.
4. Trigger gun after moving. Release
trigger before stopping. For additional
spraying information, see separate gun
manual.
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C
B
A
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Operation
334649H 17
Clear Tip Clog
1. Release the trigger. Engage the trigger
lock. Rotate Spray Tip. Disengage the
trigger lock. Trigger gun at waste area to
clear clog.
2. Engage the trigger lock. Return Spray
Tip to original position. Disengage the
trigger lock and continue spraying.
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Operation
18 334649H
Cleanup
1. Perform Pressure Relief Procedure,
page 9.
2. Remove tip guard and Spray Tip. For
additional information, see separate gun
manual.
3. Remove fluid intake and drain tube from
paint, wipe excess paint off outside.
4. Place fluid intake in a flushing fluid. Use
water for water base paint and mineral
spirits for oil-based paint. Place drain
tube in a waste pail.
5. Turn prime valve horizontal.
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Operation
334649H 19
6. Increase pressure 1/2 turn to start motor.
Hold gun against paint pail. Disengage
the trigger lock. Trigger gun and
increase pressure until the pump runs
steady and flushing fluid appears.
7. Stop triggering gun. Move gun to waste
pail, hold gun against pail, trigger gun to
thoroughly flush system.
8. While continuing to trigger gun, turn
prime valve down. Then, release gun
trigger. Allow flushing fluid to circulate
until fluid comes out of drain tube clear.
9. Raise fluid intake above flushing fluid.
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Operation
20 334649H
10. Turn prime valve horizontal. Trigger gun
into flushing pail to purge fluid from hose.
11. Engage the trigger lock.
12. Turn pressure control knob to the lowest
pressure setting and turn ON/OFF
switch to OFF position. Disconnect
power to sprayer.
13. Remove filter from gun. Clean and
inspect. Install filter. See separate gun
manual.
14. If flushing with water, flush again with
mineral spirits or Pump Armor to leave a
protective coating to prevent freezing or
corrosion.
15. Wipe sprayer, hose and gun with a rag
soaked in water or mineral spirits.
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