Graco 3A2589D User Manual

Operation - Repair - Parts

ti18875a

WARNINGWARNINGWARNING

WARNING

Cordless Hand-Held Paint Sprayers

- For portable spray applications of architectural paints and coatings only -

- Not approved for use in explosive atmosphere locations -

IMPORTANT SAFETY INSTRUCTIONS

Read all warnings and instructions in this
manual. Save these instructions.

All Models:

Maximum Working Pressure 2000 psi (14 MPa, 138 bar)

Model

16N657 120V 
16M886 120V 
16N660 120V 
24R747 120V 

Charger

Voltage

3A2589D

EN

Use only water-based or oil-based (mineral spirit-type) materials with flash point greater than 100° F
(38° C). Do not use materials which state “FLAMMABLE” on the packaging. For more information about

your material, request MSDS from distributor or retailer.

Use oil-based material outdoors or in a well-ventilated indoor area with a flow of fresh air.

Spraying certain materials may cause static build-up in the sprayer that can result in static shock to
the user. If this occurs, first ensure the material has a flash point greater than 100° F (38° C) and does not

state that it is FLAMMABLE anywhere on the package. If still feeling a static shock, the material likely con­tains a non-mineral spirits fluid such as, but not limited to, xylene, toluene, or naphtha, which can build up
static. Switch to an alternative material.

Table of Contents

Table of Contents

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . 5

Charging the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Charger Status Indicator Lights . . . . . . . . . . . . . . . . . . 6

Sprayer Status Indicator Light . . . . . . . . . . . . . . . . . . . 6

Common Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Prime/Spray Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . 7

Reversible Spray Tip . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Pressure Control Knob . . . . . . . . . . . . . . . . . . . . . . . . . 8

Flexible Suction Tube . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Sprayer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Starting a New Job

(or Refilling the Material Cup) . . . . . . . . . . . . . . . . . 11

Choosing the Correct Tip . . . . . . . . . . . . . . . . . . . . . . . . 12

Understanding Tip Number . . . . . . . . . . . . . . . . . . . . 12

Selecting Tip Hole Size . . . . . . . . . . . . . . . . . . . . . . . 12

Choosing Pressure Control Knob Setting . . . . . . . . . . 12

Install Spray Tip/Guard

Assembly (if not installed) . . . . . . . . . . . . . . . . . . . . 13

Getting Started with Basic Techniques . . . . . . . . . . . . . 13

Triggering Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Aiming Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Spray Pattern Quality . . . . . . . . . . . . . . . . . . . . . . . . . 14

Unclogging Spray Tip/Guard Assembly . . . . . . . . . . . 14

Shutdown and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 15

Flushing Sprayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Cleaning Sprayer Exterior . . . . . . . . . . . . . . . . . . . . . 17

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

General Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Pressure Control Knob . . . . . . . . . . . . . . . . . . . . . . . . 18

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Models 16M886, 16N657, 24R747 . . . . . . . . . . . . . . 19

Parts List - Models 16N657, 16M886, 24R747 . . . . . 20

Parts List - Models 16N657, 16M886, 24R747(Continued)

21

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Model 16N660 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Parts List - Model 16N660 . . . . . . . . . . . . . . . . . . . . . 23

Parts List - Models 16N660 (Continued) . . . . . . . . . . 24

Inlet Valve Fitting Removal/Service . . . . . . . . . . . . . . . . 25

Outlet Valve Fitting Repair . . . . . . . . . . . . . . . . . . . . . . . 26

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Troubleshooting Leaks . . . . . . . . . . . . . . . . . . . . . . . . 31

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Preferred Material Settings Log . . . . . . . . . . . . . . . . . . . 33

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . 36

Important User Information

Before using your sprayer read this Operation manual for complete instructions on proper use and safety warnings.

DO NOT RETURN THIS SPRAYER TO THE STORE!

If you experience problems, contact Graco Product Support at 1-888-541-9788 or visit www.graco.com.

Congratulations! You have purchased a high-quality sprayer made by Graco Inc. This sprayer is designed to provide superior spray
performance with architectural paints and coatings. This user information is intended to help you understand the types of materials
that can be used with your sprayer.

Before using this equipment, be sure to read and follow the information on your container label and ask for a Material Safety Data
Sheet (MSDS) from your supplier. The container label and MSDS will explain the contents of the material and the specific
precautions related to it.

Paints, coatings and clean-up materials generally fit into one of the following 3 basic categories:

WATER-BASED: The container label should indicate that the material can be cleaned up with soap and water. Your
sprayer is compatible with this type of material. Your sprayer is NOT compatible with harsh cleaners such as chlorine
bleach.

OIL-BASED: The container label should indicate that the material is combustible and can be cleaned up with mineral
spirits or paint thinner. The MSDS must indicate that the flash point of the material is above 100° F. Your sprayer is
compatible with this type of material. Use oil-based material outdoors or in a well-ventilated indoor area with a flow of
fresh air. See the safety warnings in this manual.

FLAMMABLE: This type of material contains flammable solvents such as xylene, toluene, naphtha, MEK, lacquer thin­ner, acetone, denatured alcohol, and turpentine. The container label should indicate that this material is FLAMMABLE.
This type of material is NOT compatible with your sprayer and CANNOT be used.

2 3A2589D

Warnings

WARNINGWARNINGWARNING

WARNING

Warnings

The following warnings are for the setup, use, 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.

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:

• Sprayer generates sparks. Do not spray or flush with flammable liquids.

• Use only water-based or oil-based (mineral spirit-type) materials with a flash point greater than
100° F (38° C).

• Keep spray area well-ventilated. Keep a good supply of fresh air moving through the area.

• Use oil-based material outdoors or in a well-ventilated indoor area with a flow of fresh air.

• Do not spray or flush with combustible materials near an open flame or sources of ignition.

• 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. Keep sprayer at least 10 in. (25 cm) away from
objects while spraying or flushing.

• 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.

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

• Always use the nozzle tip guard. Do not spray without nozzle tip guard in place.

• 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.

• Check parts for signs of damage. Replace any damaged parts.

• This system is capable of producing 2000 psi. Use replacement parts or accessories that are rated a minimum
of 2000 psi.

• Do not carry the tool with a finger on the trigger.

• 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.

• Use only in dry locations. Do not expose to water or rain.

• Use in well-lit areas.

3A2589D 3

Warnings

WARNINGWARNINGWARNING

WARNING

BATTERY HAZARD

The battery may leak, explode, cause burns, or cause an explosion if mishandled. Contents of an open battery can
cause severe irritation and/or chemical burns. If on skin, wash with soap and water. If in eyes, flush with water for at
least 15 minutes and seek immediate medical attention.

• Replace battery only in a well-ventilated area and away from flammable or combustible materials; including
paints and solvents.

• When battery is not in use, keep it away from metal objects like keys, nails, screws or other metal objects that
can short circuit the battery terminals.

• Do not throw into fire.

• Charge only with Graco-approved charger as listed in this manual.

• Do not store at temperatures below 32° or above 113° F (0° to 45° C).

• Do not use at temperatures below 40° or above 90° F (4° to 32° C).

• Do not expose battery to water or rain.

• Do not disassemble, crush, or penetrate the battery.

• Do not charge a battery that is cracked or damaged.

• Follow local ordinances and/or regulations for disposal.

CHARGER ELECTRIC SHOCK, FIRE AND EXPLOSION HAZARD

Improper setup or usage can cause electric shock, fire, and explosion.

• Charge only in a well-ventilated area and away from flammable or combustible materials, including paints and
solvents.

• Do not charge on a combustible or flammable surface.

• Do not leave battery unattended while charging.

• Immediately unplug charger and remove battery when charger is complete.

• Charge only Graco batteries listed in this manual; other batteries may burst.

• Use only in dry locations. Do not expose to water or rain.

• Do not use a charger that is cracked or damaged.

• If the supply cord is damaged, replace the charger or cord, depending on model.

• Never force the battery into the charger.

• When operating a charger outdoors, always provide a dry location and use an extension cord suitable for out­door use.

• Disconnect the charger from the outlet before cleaning.

• Ensure that the outside surface of the battery is clean and dry before plugging into the charger.

• Do not attempt to charge non-rechargeable batteries.

• Do not disassemble the charger. Take charger to authorized service center when service or repair is required.

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.

MOVING PARTS HAZARD

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

• Keep clear of moving parts.

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

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the

Pressure Relief Procedure in this manual. Disconnect power.

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.

• Read MSDS’s to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

PERSONAL PROTECTIVE EQUIPMENT

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.

4 3A2589D

Component Identification

J

D

*B

G

A

N

P

S

T

R

W

H

ti18877a

F

E

K

M

C

L

Y

Component Identification

A Spray Tip/Guard Assembly

*B Spray Tip Filter (Reverse Threaded)

C Air Vent Valve

D Flexible Suction Tube

E Pump Armor Storage/Startup Tool

F Battery Charger

G Pressure Control Knob

H Material Cup Liners (5 included)

J Prime/Spray Valve

K Material Cup Cover and Seal

*NOTE: Spray Tip filter is reverse-threaded. Turn left (or counter-clockwise) to tighten, turn right (or clockwise) to

loosen.

L Part Number = Model Number

M Sprayer Case

NBattery

P Battery Release Button

R Sprayer Status Indicator Light

S Trigger

T Trigger Lock

W Outlet Valve Fitting Access Plug

Y Sprayer Hook (Not available on all models)

3A2589D 5

Charging the Battery

ti14990a

ti14990a

ti18884a

Replace and charge battery only in a well-ventilated area and
away from flammable or combustible materials, including
paints and solvents.

Batteries are initially 50% charged to provide optimum battery
life and require charging before first use. It takes approxi­mately 45 minutes to charge a dead battery to 80%, at which
point it can be used. It will take approximately 75 minutes to
fully charge a dead battery.

1. Place charger in a dry, well-ventilated area and away from
flammable or combustible materials, including paints and
solvents.

Charging the Battery

2. Plug charger into an electrical outlet and slide battery into
charger as shown (light will turn on in 5 seconds).

3. When battery becomes fully charged, immediately unplug
the charger from the power supply and remove the battery
from the charger.

NOTE: The amount sprayed with each battery varies depend­ing on material, spray tip size, battery charge, and battery tem­perature. One battery fully charged will spray up to one gallon.
Amount sprayed will be less depending on spray tip size,
material sprayed, life of battery, temperature, and other envi­ronmental factors.

Charger Status Indicator Lights

NOTE: When the charger is plugged in, the charger status indicator lights will alternate between green and red several times

before they turn off, indicating that the charger is ready to charge a battery.

Label Appearance Description

Solid green light Indicates a full charge. Battery can be used.

Flashing green light

Flashing red light

Solid red light

Battery is charging, indicates 80% charge.
Battery can be used.

Battery is charging, indicates less than 80% charge.
Do NOT use battery.

Battery is too hot or too cold to charge. Remove battery and allow to cool or
warm up before charging.

Sprayer Status Indicator Light

Light* Appearance Description

No light Normal operation.

Solid red Battery is low on power and needs to be charged, or battery is too cold and

must warm up before spraying.

Flashing red Battery temperature is too high, or spray tip is clogged.

See Troubleshooting, page 27.

*NOTE: The sprayer status indicator light is only visible when sprayer trigger is engaged. You must squeeze and hold the trigger
to see the sprayer status indicator.

6 3A2589D

Common Procedures

Trigger Locked

Trigger Unlocked

ti14995a

(red ring is visible)

ti18874a

ti18866a

UP position

(For priming and releasing

DOWN position

(Ready to spray)

ti14999a

pump pressure)

ti16700a

ti16701a

ti14994a

ti18866a

ti14999a

ti16700a

Common Procedures

Trigger Lock

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

Follow the Pressure Relief Procedure
whenever you see this symbol.

Pressure Relief Procedure

Do not operate or spray near children. Do not aim the
sprayer at, or spray any person or animal. Keep hands
and other body parts away from the discharge. For
example, do not try to stop the paint flow with any part
of the body.

This sprayer builds up an internal pressure of 2000 psi
(14 MPa, 138 bar) during use. Follow this Pressure
Relief Procedure whenever you stop spraying and
before cleaning, checking, servicing, or transporting
equipment to prevent serious injury.

1. Engage trigger lock.

Prime/Spray Valve

3A2589D 7

2. Put prime/spray valve UP to release pressure.

Common Procedures

Spray Tip Forward

(SPRAY position)

Spray Tip Reversed

(UNCLOG position)

ti14991a

ti14985a

ti15510a

ti16992a

ti14991a

ti15510a

Minimum Pressure Setting

Maximum Pressure Setting

ti16705a

ti16704a

Reversible Spray Tip

Always perform Pressure Relief Procedure before
adjusting spray tip position.

In the event that particles or debris clog the spray tip,
this sprayer is designed with a reversible spray tip that
can be used to quickly and easily clear the particles and
resume spraying as quickly as possible.

• Always point the reversible spray tip
forward when spraying.

• When particles or debris get caught in the tip, it can
be reversed to quickly clean the tip.

•See Unclogging Spray/Tip Guard Assembly
(page 14) for detailed instructions.

Pressure Control Knob

• To reduce overspray, always spray at lowest pres­sure that results in an acceptable spray pattern.

• Spray test pattern and adjust pressure to get
desired coverage.

• With some materials, if pressure is set too low, no
material may spray out. Turn pressure control knob
up.

• Thin materials sprayed at high pressure settings
may cause the sprayer to enter an operational mode
designed to protect it from overheating. This mode
is noticeable by the sprayer sounding like it is slow­ing down and will result in a poor spray pattern.

To exit this mode, turn pressure control knob
down to lowest pressure setting that results in
an acceptable spray pattern.

• If spraying in low pressure range, there may not be
enough pressure to clear the plug. Turn pressure
control knob up to clear the plug.

NOTICE

See Choosing Pressure Control Knob Setting on
page 12 for recommendations on the setting for your
job.

8 3A2589D

Common Procedures

ti18881a

Tab

ti19463a

ti18878a

Flexible Suction Tube

This sprayer comes with a flexible suction tube for
multi-directional spraying without adjustment.

To ensure proper function of flexible suction tube, orient
as shown. Make sure tab from sprayer is aligned with
groove from flexible suction tube and firmly push into
place.

Model 16N660 only: The flexible suction tube on these
models does not have an alignment groove. Orient flexi­ble suction tube screen end forward (away from trigger)
as shown below and firmly push into place.

NOTE: If the sprayer is angled or tilted too far, the flexi­ble suction tube will lose contact with the material and
the sprayer will stop spraying.

3A2589D 9

Sprayer Setup

ti18871a

ti14999a

ti16700a

ti15425a

ti16701a

ti16713a

ti14991a

ti14999a

ti14994a

ti18866a

ti16700a

ti18861a

Use only water-based or oil-based (mineral
spirit-type) materials with flash point greater than
100° F (38° C). Do not use materials which state

“FLAMMABLE” on the packaging. For more information
about your material, request MSDS from distributor or
retailer.

Spraying certain materials may cause static
build-up in the sprayer that can result in static
shock to the user. If this occurs, first ensure the mate-

rial has a flash point greater than 100° F (38° C) and
does not state that it is FLAMMABLE anywhere on the
package. If still feeling a static shock, the material likely
contains a non-mineral spirits fluid such as, but not lim­ited to, xylene, toluene, or naphtha, which can build up
static. Switch to an alternative material.

Use oil-based material outdoors or in a well-ventilated
indoor area with a flow of fresh air.

Keep spray area well-ventilated. Keep a good supply
of fresh air moving through the area.

Sprayer Setup

2. Put prime/spray valve to UP position, then hold trig­ger in for 10 seconds.

3. Put prime/spray valve DOWN to spray position.

4. Reverse Spray Tip to UNCLOG position and trigger
sprayer into a waste area for 10 seconds.

5. Engage trigger lock and put prime/spray valve UP to
release pressure.

NOTICE

Your sprayer is NOT compatible with harsh cleaners
such as chlorine bleach. Using these cleaners will
cause damage to the sprayer.

This sprayer arrives from the factory with a small
amount of test material in the system. It is important

that you flush this material from the sprayer before
using it for the first time:

1. Fill material cup with water or compatible solvent,
thread onto sprayer and hand tighten.

6. Unscrew and remove material cup.

7. Disengage trigger lock, hold sprayer slightly above
material cup, and pull trigger to discharge fluid from
pump.

8. Discard material in cup.

10 3A2589D

Starting a New Job (or Refilling the Material Cup)

ti14999a

ti14994a

ti16700a

ti18866a

ti15474a

ti18868a

ti15418a

ti15425a

ti14995a

ti16701a

ti16716a

ti18874a

ti14991a

ti14985a

ti14991a

ti16713a

ti16700a

ti16992a

ti17323a

ti17326a

ti18876a

Starting a New Job
(or Refilling the Material Cup)

1. Engage trigger lock and put prime/spray valve UP to

release pressure.

2. Install material cup liner, fill with material, and
thread onto sprayer.

3. To fill sprayer with fluid, disengage trigger lock and
trigger sprayer for 10 seconds. Then release trigger
and put prime/spray valve DOWN to spray position.

If sprayer fails to prime, try one of the steps
below:

1. Use the Pump Armor storage/startup tool to clean
the inlet valve fitting. See Storage, page 17.

2. Clean air vent holes or the air vent valve,
depending on model. See Shutdown and Clean-

ing, page 15.

Model 16N660: Use a soft brush to clean the black

rubber inlet seal. If air vent holes become clogged,
use a paper clip to clean the holes.

4. Reverse spray tip to UNCLOG position, pull trigger
and release.

5. Put prime/spray valve UP to release pressure. Then
rotate spray tip back to spray position.
NOTE: Failure to perform this operation could result
in poor spray pattern.

For all other units: Remove air vent valve, clean,
and reinstall.

3A2589D 11