Graco 334730A User Manual

Operation, Parts

FinishPro II 395 PC

334730A

Airless/Air-Assisted Sprayer

For professional use only.
Not approved for use in explosive atmospheres or hazardous locations.
For portable application of architectural paints and coatings.

Models: 17C417, 17C418, 17C421, 17C320, 17C321

3300 psi (228 bar, 22.8 MPa) Maximum Working Pressure

See page 3 for additional model information.

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.

Gun - 333182 Pump - 334599

Related Manuals

EN

Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.

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Contents

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Extension Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Pails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Spray Tip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Clear Tip Clog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Digital Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Mechanical/Fluid Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Sprayers Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Control and Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Control and Filter Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Compressor Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

120V, US/Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

110V, UK / 230V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2 334730A

Models

110474

Certified to

CAN/CSA

C22.2 No. 68

Conforms to

UL 1450

Models

VAC Model

120

USA

230

CEE 7/7

230 Europe

Multicord

110

UK

230

Asia/ANZ

230

China

FinishPro II 395 PC

FinishPro II 395 PC

FinishPro II 395 PC

FinishPro II 395 PC

FinishPro II 395 PC

17C417

17C418

17C421

17C320

17C321

334730A 3

Warnings

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120V US 230V 230V ANZ

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 or 230V 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.

4 334730A

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 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 Safety

Data Sheets (SDS) 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.

334730A 5

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 3300 psi. Use Graco replacement parts or

accessories that are rated a minimum of 3300 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.

6 334730A

Warnings

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.

BURN HAZARD

Equipment surfaces and fluid that is heated can become very hot during operation.
To avoid severe burns:

• Do not touch hot fluid or equipment.

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.

334730A 7

Component Identification

H

G

J

L

E

F

U

B

T

R

C

D

K

X

W

Y Z

S

M

N

V

P

Component Identification

A

A

Power/Function Selector

B

Pressure Control

C

Air Hose Connection

D

Prime Valve

E

Gun Filter

F

Tip Guard

G

Spray Tip

H

Gun

J

Airless Hose

K

Power Cord

L

Trigger Lock

M

Drain Tube

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N

Fluid Intake

P

Pump

R

Fluid Outlet

S

Hanger

T

Filter

U

Finger Guard / TSL Fill Point

V

Pail Hook

W

Display

X

Gun Air Regulator

Y

Sprayer Air Pressure Regulator

Z

Air Pressure Gauge
Model/Serial Tag (Not shown.)

8 334730A

Grounding

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Grounding

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.

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, 15A, 1 phase.

• 230V units require 230 VAC, 50/60 HZ,

10A, 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.

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.

Pails

Solvent and oil-based fluids: follow local

code. Use only conductive metal pails,
placed on a grounded surface such as
concrete.

334730A 9

Pressure Relief Procedure

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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, 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.

1. Set SELECTOR switch to OFF position.
Wait 7 seconds for power to dissipate.

2. Engage trigger lock.

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3. Turn pressure control to lowest setting.
Disengage trigger lock.

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4. Hold a metal part of the gun firmly to a
grounded metal pail. Trigger the gun to
relieve pressure.

5. Engage trigger lock.

10 334730A

Pressure Relief Procedure

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6. Put drain tube in pail. Turn prime valve
down. Leave prime valve in 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 tip guard

retaining nut or hose end coupling to
relieve pressure gradually.

b. Loosen 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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334730A 11

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.

3. Use wrenches to tighten securely.

4. Engage trigger lock.

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5. Remove tip guard/air cap.

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6. When unpacking sprayer for the first

2. Connect other end of hose to gun.

12 334730A

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

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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.

Setup

8. Make certain SELECTOR switch is OFF.

9. Plug power supply cord into a properly
grounded electrical outlet.

10. Turn prime valve down.

334730A 13

Setup

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11. Place fluid intake with drain tube in
grounded metal pail partially filled with
flushing fluid. See Grounding, page 9.

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. Use water for latex paint or
mineral spirits for oil-based paint.

12. Turn pressure control to lowest setting.

13. Set SELECTOR switch to AIRLESS
position.

14. Turn prime valve horizontal. Disengage
trigger lock.

15. Increase pressure 1/2 turn to start motor.

16. Hold a metal part of the gun firmly to a
grounded metal pail. Trigger gun and
flush for one minute.

17. Set SELECTOR switch to OFF position.

18. Engage 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. Set SELECTOR switch to AIRLESS
position.

21. Turn prime valve horizontal. Disengage
trigger lock.

22. Hold a metal part of the gun firmly to a
grounded metal pail. Trigger gun and
flush until clean.

23. Set SELECTOR switch to OFF position.

24. Engage trigger lock.

25. Sprayer is now ready to startup and
spray in airless mode.

26. Attach air hose to sprayer air hose
connection.

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27. Cut air hose to length and couple to air
connection on gun.

28. Sprayer is now ready to startup and
spray in air-assisted (AA) mode.

14 334730A

Startup

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15 s

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1. Perform Pressure Relief Procedure,
page 10.

2. Turn pressure control to lowest
pressure.

Startup

5. Increase pressure 1/2 turn to start motor.
Allow paint to circulate through drain
tube for 15 seconds.

6. Turn prime valve horizontal. Disengage
trigger lock.

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3. Set SELECTOR switch to AIRLESS
position.

7. Hold gun against grounded metal waste
pail. Trigger gun until paint appears.

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4. Place fluid intake in paint pail. Place
drain tube in waste pail.

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334730A 15

Startup

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20 s

8. Move gun to paint pail and trigger for 20
seconds. Release trigger and allow
sprayer to build pressure. 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.

9. Inspect for leaks. If leaks occur, perform
Pressure Relief Procedure, page 10,
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 17. For gun assembly instructions,
see separate gun manual.

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16 334730A

Operation

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6

35

33a

33b

33

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6

Operation

Spray Tip Installation

1. Perform Pressure Relief Procedure,
page 10.

2. Engage trigger lock.

3. Insert seat (33a) into seat housing (35).

4. Insert seat housing (35) into air cap (6).

5. Insert seal (33b) over seat (33a). Use
black seal for water-based materials and
orange seal for solvent and oil-based
materials.

6. Insert tip into slot (a) in air cap (6).

Tip Selection

NOTICE

If air cap is not fully installed on gun, fluid
pressure can force paint into air line and dam­age sprayer.

7. Install air cap over end of gun. Hand
tighten.

Material Oil Based Water Based Tip Size Fluid Setting Air setting

Stains/Varnish .008/.010 500-700 psi

Lacquers .008/.010 700-1000 psi

DTM  .010/.012 900-1200 psi

DTM (Alkyd)  0.14/0.16 1800-2400 psi

Enamels 0.14/0.16 1800-2400 psi

(34-48 bar)

(48-69 bar)

(62-83 bar)

(124-165 bar)

(124-165 bar)

10-15 psi

(0.7-1.0 bar)

10-15 psi

(0.7-1.0 bar)

15-20 psi

(1.0-1.4 bar)

20-25 psi

(1.4-1.7 bar)

25-30 psi

(1.7-2.1 bar)

334730A 17

Operation

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Spray

Air-Assisted Spraying

NOTE: In high humidity conditions, moisture

can accumulate in the air line. If this occurs,
install an in-line desiccant filter (24U981 or
24U982) to prevent moisture from entering
the gun.

1. Set SELECTOR switch to AIRLESS
position.

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2. Open gun air regulator all the way.

3. Prime pump, see Startup, page 15.

4. Set fluid pressure to highest setting.

18 334730A

Clear Tip Clog

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1. Perform Pressure Relief Procedure,
page 10.

2. Engage trigger lock.

3. Engage trigger lock. Return spray tip to
original position. Disengage trigger lock
and continue spraying.

a. Flat tip: Remove and clean guard

and tip

b. RAC Tip: Proceed to next step.

4. Rotate tip 180°.

5. Disengage trigger lock.

6. Trigger gun at waste area to clear clog.

7. Engage trigger lock.

8. Rotate tip back 180° to spray position.

Operation

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334730A 19

Operation

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Digital Display

Most models are equipped with a digital
display. This section explains how to use this
feature.

Pressure Display

1. Perform Pressure Relief Procedure,
page 10.

2. Plug sprayer into grounded outlet. Set
SELECTOR switch to AIRLESS
position.

3. The pressure is displayed. Dashes
indicate pressure is less than 200 psi (14
bar, 1.4 MPa).

4. Press and hold display button to change
pressure units (psi, bar, or MPa).

Stored Data Display

1. Set SELECTOR switch to OFF position.

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20 334730A

Operation

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2. To enter Stored Data Mode, press and
hold display button and set SELECTOR
switch to AIRLESS position.

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3. Sprayer model number is displayed
followed by Data Point 1 which is the unit
power ON time in hours.

5. Press display button again to display
Data Point 3. This will be the last error
code.

6. To erase last error code, press and hold
display button.

7. Press display button again to display
Data Point 4. The software revision is
displayed.

8. Press display button again to return to
Data Point 1.

9. Set SELECTOR switch to OFF position
to exit Stored Data.

4. Press display button again to display
Data Point 2. Motor

run time in hours is

displayed.

23

334730A 21

Operation

ti25504a

ti24709a

ti24710a

Cleanup

1. Perform Pressure Relief Procedure,
page 10.

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 flushing fluid. Use
water for water base paint and mineral
spirits for oil-based paint. Place drain
tube in waste pail.

5. To flush drain tube turn prime valve
down.

6. Increase pressure 1/2 turn to start motor.
Hold gun against paint pail. Disengage
trigger lock. Trigger gun and increase
pressure until the pump runs steady and
flushing fluid appears.

ti25542a

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.

22 334730A

9. Raise fluid intake above flushing fluid.

ti25471a

ti25543a

Operation

12. Trigger gun and slowly increase air
pressure to blow material out of the gun
air passages.

13. Engage trigger lock.

ti25450a

14. Turn pressure control knob to OFF and
set SELECTOR switch to OFF position.
Disconnect power to sprayer.

ti24714a

10. With prime valve horizontal. Trigger gun
into flushing pail to purge fluid from hose.

11. Set SELECTOR switch to AA
Air-Assisted position.

ti25596a

334730A 23

Operation

ti25545a

15. Remove filter from gun and sprayer if
installed. Clean and inspect. Install filter.
See separate gun manual.

ti25509a

16. If flushing with water, flush again with
mineral spirits or Pump Armor to leave a
protective coating to prevent freezing or
corrosion.

ti25544a

17. Wipe sprayer, hose and gun with a rag
soaked in water or mineral spirits.

24 334730A

Maintenance

Maintenance

Routine maintenance is important to ensure proper operation of your sprayer. Maintenance
includes performing routine actions which keep your sprayer in operation and prevents trouble
in the future.

Activity Interval

Inspect/clean sprayer filter, fluid inlet strainer, and gun
filter.

Inspect motor shield vents for blockage.

Fill TSL by adding through TSL fill point. Daily or each time you spray

Inspect motor brushes for wear. Brushes must be 1/2 in.
(13mm) minimum length. NOTE: Brushes do not wear at
the same rate on both sides of motor. Check both brushes.

Check sprayer stall.

With sprayer gun NOT triggered, sprayer motor should stall
and not restart until gun is triggered again.

If sprayer starts again with gun NOT triggered, inspect
pump for internal/external leaks and check prime valve for
leaks.

Throat packing adjustment

When pump packing begins to leak after extended use,
tighten packing nut down until leakage stops or lessens.
This allows approximately 100 gallons of additional
operation before a repacking is required. Packing nut can
be tightened without 0-ring removal.

Daily or each time you spray

Daily or each time you spray

Every 1000 gallons (3785 liters)

Every 1000 gallons (3785 liters)

As necessary based on usage

334730A 25

Troubleshooting

Troubleshooting

Mechanical/Fluid Flow

1. Follow Pressure Relief Procedure,
page 10, before checking or repairing.

What to Check

Problem

For units with display:

E=0X is displayed.

For units with no display: Control
board status light is blinking or the
light is off and there is power to the
sprayer.

Pump output is low Spray tip worn. Follow Pressure Relief Procedure,

If check is OK, go to next

Fault condition exists. Determine fault correction from

Spray tip clogged. Relieve pressure. Check and clean

Paint supply. Refill and reprime pump.

Intake strainer clogged. Remove and clean, then reinstall.

Intake valve ball and piston ball are
not seating properly.

Fluid filter or tip filter is clogged or
dirty.

Prime valve leaking. Follow Pressure Relief Procedure,

Verify pump does not continue to
stroke when gun trigger is released.
(Prime valve not leaking.)

Leaking around throat packing nut
which may indicate worn or damaged
packings.

2. Check all possible problems and causes
before disassembling the unit.

What to Do

check

When check is not OK,

refer to this column

Electrical, page 29.

page 10, then replace tip. See
separate gun or tip manual.

spray tip.

Remove intake valve and clean.
Check balls and seats for nicks;
replace if necessary. See pump
manual. Strain paint before using to
remove particles that could clog
pump.

Clean filter.

page 10, then repair prime valve.

Service pump. See pump manual.

Replace packings. See pump manual.
Also check piston valve seat for
hardened paint or nicks and replace if
necessary. Tighten packing
nut/wet-cup.

26 334730A

Troubleshooting

What to Check

If check is OK, go to next

Problem

Pump output is low Pump rod damage. Repair pump. See pump manual.

Low stall pressure. Turn pressure knob fully clockwise.

Piston packings are worn or
damaged.

O-ring in pump is worn or damaged. Replace o-ring. See pump manual.

Intake valve ball is packed with
material.

Large pressure drop in hose with
heavy materials.

Check extension cord for correct size. See Extension Cords, page 9.

Loose motor brushes and terminals. Tighten terminal screws. Replace

Worn motor brushes. (Brushes must
be 1/2 in. [13mm] minimum length.)

Broken and misaligned motor brush
springs. Rolled portion of spring must
rest squarely on top of brush.

Motor brushes are binding in brush
holders.

Motor runs but pump does not stroke Connecting rod assembly damaged.

Excessive paint leakage into throat
packing nut

See pump manual.

Gears or drive housing damaged. Inspect drive housing assembly and

Throat packing nut is loose. Remove throat packing nut spacer.

Throat packings are worn or
damaged.

Displacement rod is worn or
damaged.

check

Make sure pressure control knob is
properly installed to allow full
clockwise position. If problem
persists, replace pressure transducer.

Replace packings. See pump manual.

Clean intake valve. See pump
manual.

Reduce overall length of hose.

brushes if leads are damaged.

Replace brushes.

Replace spring if broken. Realign
spring with brush.

Clean brush holders, remove carbon
dust with a small cleaning brush.
Align brush lead with slot in brush
holder to assure free vertical brush
movement.

Replace connecting rod assembly.
See pump manual.

gears for damage and replace if
necessary.

Tighten throat packing nut just
enough to stop leakage.

Replace packings. See pump manual.

Replace rod. See pump manual.

What to Do

When check is not OK,

refer to this column

334730A 27

Troubleshooting

What to Check

If check is OK, go to next

Problem

Fluid is spitting from gun Air in pump or hose. Check and tighten all fluid

Spray tip is partially clogged. Clear tip. See Clear Tip Clog, page

Fluid supply is low or empty. Refill fluid supply. Prime pump. See

Pump is difficult to prime Air in pump or hose. Check and tighten all fluid

Intake valve is leaking. Clean intake valve. Be sure ball seat

Pump packings are worn. Replace pump packings. See pump

Paint is too thick. Thin the paint according to supplier

Sprayer operates for 5 to 10 minutes
then stops

Pump packing nut too tight. When
pump packing nut is too tight the
packings on the pump rod restrict
pump action and overloads the motor.

check

connections. Cycle pump as slowly as
possible during priming.

19.

pump manual. Check fluid supply
often to prevent running pump dry.

connections. Cycle pump as slowly as
possible during priming.

is not nicked or worn and that ball
seats well. Reassemble valve.

manual.

recommendations.

Loosen pump packing nut. Check for
leaks around throat. If necessary,
replace pump packings. See Pump
manual.

What to Do

When check is not OK,

refer to this column

28 334730A

Troubleshooting

Electrical

Symptom: Sprayer does not run, stops
running, or will not shut off.

Perform Pressure Relief Procedure, page

10.

1. Plug sprayer into correct voltage,
grounded outlet.

2. Set the SELECTOR switch to OFF wait
30 seconds and then set to AIRLESS
(this ensures sprayer is in normal run
mode).

3. Turn pressure control knob clockwise
1/2 turn.

Problem What to Check How to check

Sprayer does not run at all

AND

Display is blank

OR

Control board status light never lights

Sprayer does not shut off

AND

Display shows E=02

OR

Control board status light blinks 2
times repeatedly

See flow chart,

Control board. Replace control board.

4. View digital display or remove control
box cover to view control board status
light. To determine which code (or any
other code besides voltage supply) refer
to the control board status light. Set the
SELECTOR switch to OFF, remove the
control cover then set SELECTOR
switch to AIRLESS. Observe the status
light. Blinking LED total count equals the
error code (for example: two blinks
equals CODE 02).

Keep clear of electrical and moving parts
during troubleshooting procedures. To
avoid electrical shock hazards when
covers are removed for troubleshooting,
wait 7 seconds after disconnecting power
cord for stored electricity to dissipate.

page 35.

334730A 29

Troubleshooting

Problem What to Check How to check

Sprayer does not run at all

AND

Display shows E=02

OR

Control board status light blinks 2
times repeatedly

Sprayer does not run at all

AND

Display shows E=03

OR

Control board status light blinks 3
times repeatedly

Check transducer or transducer
connections

Check transducer or transducer
connections (control board is not
detecting a pressure signal).

Make sure there is no pressure in the
system (see Pressure Relief
Procedure, page 10). Check fluid
path for clogs, such as clogged filter.

Use airless paint spray hose with no
metal braid. A small hose or metal
braid hose may result in
high-pressure spikes.

Set SELECTOR switch to OFF and
disconnect power to sprayer.

Check transducer and connections to
control board.

Disconnect transducer from control
board socket. Check that transducer
and control board contacts are clean
and secure.

Reconnect transducer to control
board socket. Connect power, set
SELECTOR switch to AIRLESS and
control knob 1/2 turn clockwise. If
sprayer does not run properly, set
SELECTOR switch to OFF and go to
next step.

Install new transducer. Connect
power, set SELECTOR switch to
AIRLESS and control knob 1/2 turn
clockwise. Replace control board if
sprayer does not run properly.

Set SELECTOR switch to OFF and
disconnect power to sprayer.

Check transducer and connections to
control board.

Disconnect transducer from control
board socket. Check to see if
transducer and control board contacts
are clean and secure.

Reconnect transducer to control
board socket. Connect power, set
SELECTOR switch to AIRLESS and
control knob to 1/2 turn clockwise. If
sprayer does not run, set SELECTOR
switch to OFF and go to next step.

Connect a confirmed working
transducer to control board socket.

Set SELECTOR switch to AIRLESS
and control knob to 1/2 turn
clockwise. If sprayer runs, install new
transducer. Replace control board if
sprayer does not run.

30 334730A

Troubleshooting

YELLOW

BLACK (-)

9-VOLT

BATTERY

RED (+)

ti24722a

Problem What to Check How to check

Sprayer does not run at all

AND

Display shows E=04

OR

Control board status light blinks 4
times repeatedly

Sprayer does not run at all

AND

Display shows E=05

OR

Control board status light blinks 5
times repeatedly

Check voltage supply to the sprayer
(control board is detecting a multiple
voltage surges).

Control is commanding motor to run
but motor shaft does not rotate.
Possibly locked rotor condition, an
open connection exists between
motor and control, there is a problem
with motor or control board, or motor
amp draw is excessive.

Set SELECTOR switch to OFF and
disconnect power to sprayer.

Locate a good voltage supply to
prevent damage to electronics.

1.Remove pump and try to run
sprayer. If motor runs, check for
locked or frozen pump or drive train.
If sprayer does not run, continue to
step 2.

2.Set SELECTOR switch to OFF and
disconnect power to sprayer.

3.Disconnect motor connector(s) from
control board socket(s). Check that
motor connector and control board
contacts are clean and secure. If
contacts are clean and secure,
continue to step 4.

4.Connect a DC voltmeter across the
two motor wires – red & black spin
the motor fan and check for a
voltage to register on the meter. If
voltage is not present, check
brushes. If OK, replace motor. If
voltage is present, go to step 5.

5.Perform a spin test by connecting a
9 –12 Volt battery to the motor
leads. Motor leads may vary in style
and size. Locate the two wires
going to the carbon brushes
normally Red and Black. Motor
should spin when battery is
connected to the motor leads.

334730A 31

Troubleshooting

RED (+)

1-3 ohms

YELLOW

RED

Problem What to Check How to check

6.Connect the Red and Black leads
from the motor to an Ohm meter.
Rotate the motor while checking for
opens. If an open is found replace
the motor.

BLACK (-)

-

YELLOW

-

ti24723a

7.Check motor thermal protection.
Motor should be at ambient
temperature for this test. Connect
the yellow leads from the motor to
an Ohm meter. Meter should
indicate continuity or Ohms
depending on the motor type.

BLACK

ti24725a

32 334730A

Troubleshooting

YELLOW

RED

OL

GROUND

Problem What to Check How to check

8.Use an Ohm meter to check motor
for shorts. Connect (–) meter lead
to motor case. Move the (+) meter
lead to each motor wire. Meter
should read open on all wires.

Sprayer does not run at all

AND

Display shows E=06

OR

Control board status light blinks 6
times repeatedly

Sprayer does not run at all

AND

Display shows E=08

OR

Control board status light blinks 8
times repeatedly

Motor is hot or there is a fault in the
motor thermal device.

Check voltage supply to the sprayer
(incoming voltage too low for sprayer
operation).

BLACK

-

-

ti24724a

9.Reconnect motor connector(s) to
control board socket(s). Connect
power, set SELECTOR switch to
AIRLESS and control knob to 1/2
turn clockwise. If motor does not
run, replace control board.

Allow sprayer to cool. If sprayer runs
when cool, correct cause of
overheating. Keep sprayer in cooler
location with good ventilation. Make
sure motor air intake is not blocked. If
sprayer still does not run, replace
motor.

Set SELECTOR switch to OFF and
disconnect power to the sprayer.

334730A 33

Troubleshooting

Problem What to Check How to check

Basic electrical problems Motor leads are securely fastened

and properly mated

For loose motor brush lead
connections and terminals.

Brushes must be 1/2 in. [13mm]
minimum. NOTE: Brushes do not
wear at the same rate on both sides
of motor. Check both brushes.

Broken or misaligned motor brush
springs. Rolled portion of spring must
rest squarely on top of brush.

Motor brushes may be binding in
brush holders.

Motor armature commutator for burn
spots, gouges or extreme roughness.

Replace loose terminals; crimp to
leads. Be sure terminal are firmly
connected.

Clean circuit board terminals.
Securely reconnect leads.

Tighten terminal screws. Replace
brushes if leads are damaged.

Replace brushes.

Replace spring if broken. Realign
spring with brush.

Clean brush holders. Remove carbon
with small cleaning brush. Align brush
leads with slot in brush holder to
assure free vertical brush movement.

Remove motor and have motor shop
resurface commutator if possible.

34 334730A

Sprayer Will Not Run

Remove Control box cover.
Turn sprayer ON. Observe
control board status light on
control board (see page 27).

No Light

Once

Light on
continuously

Flashing

Normal Operation

Control board
Commanding motor
to run

See Step 1. Do you
have over 100 VAC

(220 VAC for 230v units)?

NO

See Code section for
further troubleshooting

Sprayer Will Not Run

(see following pages for steps)

See Step 2. Do you
have over 100 VAC

(220 VAC for 230v units)?

Repair or

replace

power cord.

See Step 3. Is there

Continuity through the

thermal switch wires?

See Step 4.

Does the motor run?

Replace the

potentiometer.

Replace

the transducer

Replace

the control board

If motor is hot, let cool and retest. If Step 3 still
shows no continuity, replace motor. The motor

has a defective thermal device.

Connect a test transducer to the board.

Does the motor run?

Replace

the On/Off

switch.

NO

NO

NO

NO

YES

YES

YES

YES YES

ti24726a

(See following page for steps)

Troubleshooting

334730A 35

Troubleshooting

110-120 AC

V

-

+

N

L

White

Black

-

+

Powe r
Cord

Control
Board

ti24727a

Step 1:

Plug Power cord in and turn
switch ON. Connect probes
to L and N on control board.
Turn meter to AC Volts.

Black

110-120 AC

V

-

-

+

Black

J11

J8

J7

N

L

C15

White

Control
Board

Step 2:

Plug power cord in and turn
switch ON. Connect Probes
to ON/OFF switch.
Turn meter to AC Volts.

ti24728a

-

BEEP

+

Yellow Thermistor
Wires to motor

-

Step 3:

Check motor thermal switch.
Unplug yellow wires. Meter
should read continuity.
NOTE: Motor should be cool
during reading.

ti24729a

J8

Control
Board

Step 4:

Disconnect potentiometer.
Plug power cord in and
turn switch ON.

ti24730a

36 334730A

Troubleshooting

Plumb pressure gauge into paint hose,

plug sprayer in, and turn power switch ON.

Does sprayer reach or exceed

its maximum pressure?

Mechanical problem:

See the proper fluid pump

manual for the sprayer for

further troubleshooting procedures.

Is the control board status light on?

NO

Replace the control board.

NO

Replace the control board.

NO

YES

YES

Unplug the transducer from control board.

Does motor stop running?

Bad transducer.

Replace and test with a new one.

YES

Sprayer Will Not Shut Off

1. Perform Pressure Relief Procedure,
page 10. Leave prime valve open

Troubleshooting Procedure

Troubleshooting Procedure

(down) and set SELECTOR switch
OFF.

2. Remove control box cover so the
control board status light can be viewed
if available.

334730A 37

ti24731a

Sprayer

78

76

103

54

66

87

124

80

77

64

67

114

88

59

23

65

12

47

111

116

191

54a

54b

63

See page 42.

1

2

2

2

2

Ref. Torque

140-160 in-lb (15.8 - 18.1 N•m)

30-35 in-lb (3.4 - 4.0 N•m)

1

2

Sprayer

See page 44 for Compressor parts.

12

ti25385a

38 334730A

12

39

42

22

110

41

40

44

25

47

12

43

45

132

84

60

14

102

57

62

55

120

70

105

107

ti25384a

200

61

101

46b

46g

46e

46a

46

46d

46f

123

4

Sprayer

Ref. Torque

140-160 in-lb (15.8 - 18.1 N•m)

30-35 in-lb (3.4 - 4.0 N•m)

Hammer tight

25-30 ft-lb (33.9 - 40.7 N•m)

334730A 39

Sprayer

Sprayers Parts List

Ref.

Part Description Qty.

12

117501 SCREW, mach, slot hex

14

103413 PACKING, o-ring 1

22

17C539 COVER, front, painted 1

23

15B465 SHIELD, motor, painted 1

25

180131 BEARING, thrust 1

39

241920 DEFLECTOR, threaded 1

40

249194 GEAR, reducer 1

41

17C487 North America
17C488 Asia/ANZ/Japan
17C489 Europe

42

24W817 HOUSING, drive, PC

43

24W640 ROD, connecting, PC 1

44

24X020 KIT, repair, crankshaft,

45

24W830 KIT, hose, cpld, PC,

46

24U578

46a

278763 HOSE, cpld, 1/4 x 25 ft. 1

46b

16X398 HOSE, air, 25 ft. (7.6m) 1

46d

15X843 SLEEVE, wrap 3

46e

278750 HOSE, Nylon, fluid, 6 ft.

46f

278751 HOSE, whip, air 1

46g

16X211 COVER, flex 1

46

24U579 3300 psi hose set, 50 ft.

46a

278764 HOSE, cpld, 1/4 x 50 ft. 1

46b

16X433 HOSE, air, 50 ft. 1

46d

15X843 SLEEVE, wrap, spiral 3

46e

278750 HOSE, Nylon, fluid, 6 ft.

46f

278751 HOSE, whip, air 1

46g

16X453 COVER, flex, 60 ft. 1

47

117493 SCREW, mach, hex

54

288859 Models 17C417, 17C320 1
287060 Models 17C418, 17C421,

54a

15D088 FAN, motor

54b

115477 SCREW, mach, Torx,

wash hd

PUMP, displacement, PC 1

includes 12, 70

includes

include

3300 psi hose set, 25 ft.
(7.6m) Models 17C418,
17C421, 17C320 includes

46a, 46b, 46d, 46e, 46f,
46g

(1.8m)

(15.2m) Models 17C417,
17C321 includes 46a, 46b,

46d, 46e, 46f, 46g

(1.8m)

washer HD
MOTOR, 395 includes

54a, 54b

17C321

painted

25

s 132

Ref.

Part Description Qty.

55

12

1

1

1

1

1

1

1

8

1

1
1

244240 HOSE, drain, Ultra hi-boy,

57

246385 STRAINER, 7/8-14 unf 1

59

24U249 FRAME, cart, hi, AA 1

60

17C992 TUBE, suction includes

61

262929 Models 17C417, 17C321 1
262932 Models 17C418, 17C421,

62

276888 CLIP, drain line 1

63



15B516 Model 17C417 1
15H087 Model 17C321 1
16G596 Models 17C418, 17C421,

64

15K053 PLATE, rear, painted 1

65



16G596 Models 17C320, 17C417,

195793 Model 17C417 1
195792 Model 17C321 1

66

287489 HANDLE, assy, hi cart 1

67

109032 SCREW, mach, pnh 4

70

17C483 COVER, pump rod 1

76

15B999 CLIP, retaining 2

77

15K052 PLATE, front, painted 1

78

106062 WHEEL, semi pneumatic 2

80

120685 GROMMET 1

84

115099 WASHER, garden hose 1

87

287253 TOOL BOX, includes 88 1

88

118852 SCREW, thd forming, hex

101

LTX517 Models 17C321, 17C417
PAA517 All other models

102

15E813 NUT, jam 1

103

104811 CAP, hub 2

105

17C990 HOOK, pail 1

107

111040 NUT, lock, insert, nylock,

110

17C850 LABEL, brand, front 1

111

17C851 LABEL, brand, side 1

114

15K468 LABEL, AA, regula-

116

15K465 LABEL (Models 17C417,

120

15B652 WASHER, suction 1

124

290228 LABEL, caution 1

132

16H137 PACKING, o-ring 1

145

111909 PLUG, button 1

17116D646 LABEL, warning 1

includes 39

14, 57, 84, 102, 120

GUN, assy, AA G40

17C320

LABEL, warning,
fire/explosion, skin

17C320

LABEL, warning

17C421

washer hd
TIP, spray, latex RAC X 1

5/16

tor/gauge

17C321)

1

1

1

1

3

2

1

1

40 334730A

Ref.

Part Description Qty.

200

24U981 5 pack
24U982 25 pack

238049 FLUID, TSL, 4 oz 1



Replacement Danger and Warning labels,

tags, and cards are available at no cost.

KIT, in-line desiccant

Sprayer

334730A 41

Control and Filter

48

47

47

15

24

47

36

27

17

3

51

18

2

58

20

11

19

24

4

6

6

7

30

81

12

107

38

5

26

35

49

37

16

109

106

ti25528a

37

1

2

5

6

7

1

Ref. Torque

140-160 in-lb (15.8 - 18.1 N•m)

30-35 in-lb (3.4 - 4.0 N•m)

20-25 in-lb (2.3 - 2.8 N•m)

37-43 ft-lb (50.2 - 58.3 N•m)

130-150 in-lb (14.7 - 16.9 N•m)

12567

Control and Filter

42 334730A

Control and Filter Parts List

Control and Filter

Ref. Part Description Qty.

2 117828 PACKING, o-ring
3 111457 PACKING, o-ring
4 111600 PIN, grooved
5 277364 GASKET, seat, valve
6 115494 SCREW, mach, phillips

7 115498 SCREW, slot, hex,

11 116167 KNOB, potentiometer
12 117501 SCREW, mach, hex

15 15G455 MANIFOLD, fluid
16 FILTER, fluid

246425 30 mesh
246384 60 mesh
246382 100 mesh, original
246383 200 mesh

17 287902 KIT, repair, filter cap

18 15B071 INSERT, filter
19 15B118 BUSHING, control box
20 15B120 GROMMET, transducer
24 162453 NIPPLE, (1/4 npsm x

26 15E022 SEAT, valve
27 187625 HANDLE, valve, drain
30 195428 BOOT, toggle
35 239914 VALVE, drain includes

36 224807 BASE, valve
37 256219 POTENTIOMETER, adj,

38 243222 TRANSDUCER, pres-

47 117493 SCREW, mach, hex

48 CONTROL BOX,

15J469 Model 17C417

pan hd

wash hd

washer hd

includes 18

1/4 npt)

5, 26

pressure with nut

sure control, includes

washer hd

machined

3

Ref. Part Description Qty.

1
1
1
1
9

1

1
4

1
1

1

1
1
1
2

1
1
1
1

1
1

1

4

15M176 Model 17C418,

49 CONTROL BOARD

288840 Model 17C417
288842 Model 17C418,

288843 Model 17C320

51 24B026 KIT, display, st includes

58 SWITCH, toggle

120544 Model 17C417

120844
81 15J988
106 15B461 LABEL, smart control

107 15K400 LABEL, digital tracking

109 CORD, power

15D029 Model 17C417

15B469 Model 17C320

15B470 Model 17C418

15B471 Models 17C421,

115 15K470 LABEL, switch, AA, 395
125 242001 CORD SET, adapter,

126 242005 CORD SET, adapter,

127 287121 CORD SET, Italy, Den-

KIT, ProGuard+, 230V models only
(not shown)

24W090 CEE 7/7

24W755

17C421, 17C320,
17C321

17C421, 17C321

106, 107

All other models
PLATE, switch

display

system

17C321

Europe (Models
17C421, 17C321)

Australia (Models
17C321, 17C421)

mark, Switzerland
(Model 17C421)

Multicord, IEC-320

1

1

1
1

1
1

1

1
1

1

1
1
1
1

1
1

1

1

1

334730A 43

Compressor

86

13

26

69 68

94

21

6

31

182

89

82
141

184

185

91

92

93

85

90

95

31

96

146

95

106

107

170

105

112

169

86a

131

186

136

188

140

147

135

138

165

168

166

167

183

108

108

108

108

133

113

148

ti25529a

2

1

Ref. Torque

60-85 in-lb (6.8 - 9.6 N•m)

95-100 in-lb (10.7 - 11.3N•m)

1

2

Compressor

44 334730A

Compressor Parts List

Compressor

Ref. Part Description Qty.

6 115494 SCREW, mach, Phillips
13 120643 GAUGE, pressure,

21 127330 REGULATOR, air, 1/4

26 CLAMP, wire

113491 Model 17C417
120143

31 117633 SCREW, slot hex wash

68 104641 FITTING, bulkhead
69 120963 COUPLE, quick,

82 122703 VALVE, pressure, relief
85 109575 SCREW, threadform-

86 AIR COMPRESSOR

288720 Models 17C417,

288722 Models 17C418,

86a 288724 KIT, compressor, filter
89 106228 FITTING, brass, elbow
90 16Y589 FITTING, tee
91 187357 ELBOW, street
92 16X397 TUBE, heat exchange,

93 SOLENOID, 2 way,

16X399 Model 17C417, 17C320
16X526 Model 17C418,

94 15K040 NUT, regulator, metal
95 120732 FITTING, compression,

96 100015 NUT, hex mscr
105 120653 FITTING, push to conn
106 120753 FITTING, push to con-

107 15K391 TUBE, air

panel mount, 1.5

in. npt

All other models

hd

disconnect

ing, hexhead

(includes 86a)

17C320

17C421, 17C321

395/595

norm open

17C421, 17C321

male connect

nect elbow

Ref. Part Description Qty.

108 15B822 TUBE, air

3

112 195551 RETAINER, plug,

1

113 16X530 CORD, pwr, comp.

1

131 16X915 TANK, painted

1

133 16X477 HOSE, air
135 127343 SWITCH, pressure
136 127339 VALVE, check, 1/8 in.

6

138 801012 GROMMET

1

140 115942 NUT, hex, flange head

1

141 127340 VALVE, check, 1/4 in.

1

146 597151 FITTING, elbow

2

147 113630 ELBOW, street 45

148 16X827 CORD, compress/con-

1

150 16X906 LABEL, brand, smart-

1

165 TIMER, solid state

1
1
1
1
1

1

1
1

1
2

1
1
1

16Y436 Models 17C417,

16Y437 Models 17C418,

166 125483 SCREW, mach, pnh,

167 C19862 NUT, lock, hex
168 16Y442 CORD, compressor to

169 113444 FITTING, elbow, street
170 127465 FILTER, in-line, desic-

182 17B227 FITTING, stand-off
183 114109 FITTING, elbow, male
184 113093 CONNECTOR, pipe
185 127716 CONNECTOR, Y, male
186 110287 RETAINING, ring
188 114320 FITTING, connector,

1

adapter

female end

mnpt x fnpt

mnpt x fnpt

degree 1/8 npt

trol board

comp

17C320

17C421, 17C321

sems, phillips

timer

cant

female

2
1

1

1
1
1
1

1
2
1

3
1

1

1

1

1

2

2
1

1
1

1
1
1
1
1
1

334730A 45

Wiring Diagrams

L1

LIB

L2B

L2B1

ORANGE

ORANGE

GROUND

CONNECTS

TO CASTING

ON/OFF
SWITCH

POTENTIOMETER

TRANSDUCER

AASB

AASA

Wiring Diagrams

120V, US/Japan

46 334730A

110V, UK / 230V

L1B

GROUND
CONNECTS
TO CASTING

BLUE

BLACK

BLUE

BROWN

GROUND

COMPRESSOR

POWER
PLUG

ECM FILTER

L2B

L2B1

GREEN/YELLOW

PRESSURE
SWITCH

BLUE

BROWN

BROWN

BROWN

DIGITAL DISPLAY

FROM

MOTOR

POTENTIOMETER

TRANSDUCER

TIMER

WHITE WHITE

SOLENOID

BLACK

BLACK

Wiring Diagrams

COMPRESSOR CORD

334730A 47

ON/OFF
SWITCH

Technical Specifications

Technical Specifications

FinishPro II 395 PC

US Metric

Sprayer
Power requirements 100/120V AC, 50/60 Hz,

15A, 1Ø
Generator Minimum 4000 W
Max tip size

US / UK 0.021 0.021
Europe / Asia/Australia 0.023 0.023

Max material output gpm (lpm)

US  / UK .47 gpm 1.8 lpm
Europe / Asia/Australia .54 gpm 2.0 lpm

Maximum material pressure - Airless

US  3300 psi 227 bar
UK 2800 psi 193 bar
Europe / Asia/Australia 3300 psi 227 bar

Maximum material pressure - AA

US  / UK 2800 psi 193 bar
Europe / Asia/Australia 3300 psi 227 bar

Atomizing air output

US / UK 3.2 cfm 3.2 cfm

Europe / Asia/Australia 2.9 cfm 2.9 cfm
Air pressure 35 psi 2.4 bar
Dimensions

Length 32.5 in. 82.5 cm

Width 21 in. 53.3 cm

Height 40.5 in. 102.8 cm

Weight (bare) 110 lb 49.9 kg
Noise** (dBa) @ 70 psi (0.48 MPa, 4.8 bar)

Sound pressure 79 dBA

Sound power 96 dBA
Materials of Construction
Pump motor TEFC 7/8 HP DC TEFC 7/8 HP DC
Compressor motor 1.0 HP AC Induction 1.0 HP AC Induction
Material hose 1/4 in. x 50-ft (blue) 1/4 in. x 15.2 m (blue)
Air hose 3/8 in. x 50-ft (clear) 3/8 in. x 15.2 m (clear)
Gun G40 w RAC X tip G40 w RAC X tip

 230V AC, 50/60 Hz, 10A,
1Ø

48 334730A

Technical Specifications

FinishPro II 395 PC

US Metric

Wetted materials on all models zinc- and nickel-plated carbon steel, nylon, stainless steel,

PTFE, Acetal, leather, UHMWPE, aluminum, tungsten
carbide, polyethylene, fluoroelastomer, urethane

Notes

* Startup pressures and displacement per cycle may vary based on suction condition,
discharge head, air pressure, and fluid type.

** Sound pressure measured 3 feet (1 meter) from equipment.

Sound power measured per ISO-3744.

334730A 49

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 Graco
equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper
design, manufacture, installation, operation or maintenance of structures, accessories, equipment or
materials not supplied by Graco.

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

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

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

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

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

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

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents,
notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or
indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du
présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés,
donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les procédures
concernées.

50 334730A

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.

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 334730

International Offices: Belgium, China, Japan, Korea

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

Copyright 2015, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

the time of publication.

Graco Headquarters: Minneapolis

www.graco.com

Revision A, January 2015