HVLP ELECTRIC PAINT SPRAYER
91772
ASSEMBLY AND OPERATING INSTRUCTIONS
®
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Copyright 2004 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions, please call 1-800-444-3353.
ELECTRICAL SAFETY
4.
Grounded tools must be plugged into an outlet properly installed and
grounded in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adapter
plugs. Check with a qualified electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should electrically malfunction or
break down, grounding provides a low resistance path to carry electricity away
from the user.
5.
6.
Double insulated tools are equipped with a polarized plug (one blade is
wider than the other). This plug will fit in a polarized outlet only one way. If
the plug does not fit fully in the outlet, reverse the plug. If it still does not
fit, contact a qualified electrician to install a polarized outlet. Do not
change the plug in any way. Double insulation
eliminates the need for the
three wire grounded power cord and grounded power supply system.
Avoid body contact with grounded surfaces such as pipes, radiators,
ranges, and refrigerators. There is an increased risk of electric shock if your
body is grounded.
7.
8.
Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
Do not abuse the Power Cord. Never use the Power Cord to carry the tools
or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,
sharp edges, or moving parts. Replace damaged Power Cords immedi-
ately. Damaged Power Cords increase the risk of electric shock.
9.
When operating a power tool outside, use an outdoor extension cord
marked “W-A” or “W”. These extension cords are rated for outdoor use, and
reduce the risk of electric shock.
PERSONAL SAFETY
10.
11.
Stay alert. Watch what you are doing, and use common sense when oper-
ating a power tool. Do not use a power tool while tired or under the influ-
ence of drugs, alcohol, or medication. A moment of inattention while operat-
ing power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
SKU 91772
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Page 3
12.
13.
14.
15.
Avoid accidental starting. Be sure the Power Switch is off before plugging
in. Carrying power tools with your finger on the Power Switch, or plugging in
power tools with the Power Switch on, invites accidents.
Remove adjusting keys or wrenches before turning the power tool on. A
wrench or a key that is left attached to a rotating part of the power tool may result
in personal injury.
Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the power tool in unexpected
situations.
Use safety equipment. Always wear ANSI-approved eye protection, face
mask/respirator and protective clothing while spraying.
TOOL USE AND CARE
16.
Use clamps (not included) or other practical ways to secure and support
the workpiece to a stable platform. Holding the work by hand or against your
body is unstable and may lead to loss of control.
17.
18.
Do not force the tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed.
Do not use the power tool if the Power Switch does not turn it on or off.
Any tool that cannot be controlled with the Power Switch is dangerous and must
be replaced.
19.
Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool accidentally.
20.
21.
22.
Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. Keep tools clean. Do not use a damaged tool. Tag
damaged tools “Do not use” until repaired.
Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect the tool’s operation. If damaged, have
the tool serviced before using. Many accidents are caused by poorly main-
tained tools.
SKU 91772
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Page 4
23.
Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
24.
25.
Tool service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow
instructions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
SPECIFIC SAFETY RULES
1.
2.
Maintain labels and nameplates on the Sprayer. These carry important infor-
mation. If unreadable or missing, contact Harbor Freight Tools for a replacement.
Maintain a safe working environment. Keep the work area well lit. Make sure
there is adequate surrounding workspace. Always keep the work area free of
obstructions, grease, oil, trash, and other debris. Do not use a power tool in areas
near flammable chemicals, dusts, and vapors. Do not use this product in a damp
or wet location.
3.
4.
5.
Always keep the extension cord away from moving parts on the tool.
Always spray in a well ventilated area to prevent health and fire hazards.
Never spray flammable materials near open flames or ignition sources.
Electrical arcs from motorized equipment can ignite flammable materials.
6.
7.
8.
Spray approved materials only. Never spray corrosive materials, acids, toxic
chemicals, fertilizers, pesticides, or highly flammable materials such as gasoline,
kerosene etc.
Never leave the Sprayer unattended when it is plugged into an electrical
outlet. Turn off the tool, and unplug it from its electrical outlet before
leaving.
Always unplug the Sprayer from its electrical outlet before performing and
inspection, maintenance, or cleaning procedures.
9.
Never spray towards people or animals.
10.
Always mask the area surrounding the paint site to protect surrounding
property and equipment from paint overspray.
SKU 91772
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Page 5
11.
12.
WARNING: The brass components of this product contain lead, a chemical
known to the State of California to cause birth defects (or other reproductive
harm). (California Health & Safety code § 25249.5, et seq.)
WARNING! People with pacemakers should consult their physician(s) before
using this product. Electromagnetic fields in close proximity to a heart pacemaker
could cause interference to or failure of the pacemaker.
REV 11/06
SKU 91772
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Page 6
GROUNDING
WARNING!
Improperly connecting the grounding wire can result in the risk of electric
shock. Check with a qualified electrician if you are in doubt as to whether the
outlet is properly grounded. Do not modify the power cord plug provided with
the tool. Never remove the grounding prong from the plug. Do not use the
tool if the power cord or plug is damaged. If damaged, have it repaired by
a service facility before use. If the plug will not fit the outlet, have a proper
outlet installed by a qualified electrician.
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
1.
Tools marked with “Grounding Required” have a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet. If
the tool should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user, reducing the risk of elec-
tric shock. (See Figure A.)
2.
3.
The grounding prong in the plug is connected through the green wire inside the
cord to the grounding system in the tool. The green wire in the cord must be the
only wire connected to the tool’s grounding system and must never be attached
to an electrically “live” terminal. (See Figure A.)
Your tool must be plugged into an appropriate outlet, properly installed and
grounded in accordance with all codes and ordinances. The plug and outlet
should look like those in the following illustration. (See Figure A.)
FIGURE A
SKU 91772
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Page 7
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
4.
5.
Tools marked “Double Insulated” do not require grounding. They have a special
double insulation system which satisfies OSHA requirements and complies with
the applicable standards of Underwriters Laboratories, Inc., the Canadian
Standard Association, and the National Electrical Code. (See Figure B.)
Double insulated tools may be used in either of the 120 volt outlets shown in the
following illustration. (See Figure B.)
FIGURE B
EXTENSION CORDS
1.
2.
Grounded tools require a three wire extension cord. Double Insulated tools
can use either a two or three wire extension cord.
As the distance from the supply outlet increases, you must use a heavier gauge
extension cord. Using extension cords with inadequately sized wire causes a
serious drop in voltage, resulting in loss of power and possible tool damage.
(See Figure C, next page.)
3.
4.
5.
The smaller the gauge number of the wire, the greater the capacity of the cord.
For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.
(See Figure C.)
When using more than one extension cord to make up the total length, make
sure each cord contains at least the minimum wire size required.
(See Figure C.)
If you are using one extension cord for more than one tool, add the nameplate
amperes and use the sum to determine the required minimum cord size.
(See Figure C.)
SKU 91772
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Page 8
6.
7.
If you are using an extension cord outdoors, make sure it is marked with the
suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.
Make sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualified
electrician before using it.
8.
Protect your extension cords from sharp objects, excessive heat, and damp or
wet areas.
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*
(120 VOLT)
NAMEPLATE
AMPERES
(At Full Load)
EXTENSION CORD LENGTH
25 FEET
50 FEET
75 FEET
100 FEET
150 FEET
0 - 2.0
18
18
18
18
16
14
12
18
18
18
16
14
12
10
16
16
16
14
12
10
-
16
14
14
12
10
-
16
14
12
12
-
-
-
2.1 - 3.4
3.5 - 5.0
5.1 - 7.0
7.1 - 12.0
12.1 - 16.0
16.1 - 20.0
-
*Based on limiting the line voltage drop
to five volts at 150% of the rated amperes.
FIGURE C
SYMBOLOGY
Double Insulated
Canadian Standards
Association
Underwriters
Laboratories, Inc.
Volts Alternating Current
V ~
Amperes
A
n
No Load Revolutions
per Minute (RPM)
o
xxxx/min.
SKU 91772
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Page 9
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List on page 14
are included. If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.
ASSEMBLY AND OPERATING INSTRUCTIONS
NOTE: For additional information regarding the parts listed in the following pages, refer
to the Assembly Diagram on page 15.
CAUTION: Always make sure the Power Cord of the Sprayer is unplugged from
its electrical outlet prior to making any adjustments to the tool.
FIGURE 1
Paint Cup (24)
Cup Cover (19)
Gun Body (27)
Strap (28)
Motor Unit
Spiral Air Hose (46)
Viscosity Cup (33)
Inflator (32)
SKU 91772
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Page 10
ASSEMBLY AND OPERATING INSTRUCTIONS (continued)
Refer to the Assembly Drawing on page 15 and FIGURE 1 on page 10.
Checking the Paint Viscosity
When using a HVLP (low pressure and high volume) spray gun the paint must be
thinned to the proper viscosity. Viscosity indicates whether the material is very liquid
(low viscosity) versus very thick (high viscosity). Viscosity is measured in the seconds it
takes for the paint to flow through the viscosity meter (DINs). Ask your paint sales repre-
sentative, check the paint container, or contact the manufacturer to find the paint’s
viscosity value.
Note: For use only with paints, never use textures or other materials. This Sprayer
can use paints with viscosity values between 10 to 14 DINs. Most commonly used
paints fall within this range and will not need to be thinned. Always check the viscosity
of the material before using it in this Spray Gun.
To measure the viscosity of your paint, you will need the Viscosity Cup (33), a
small container, and a timepiece with a second hand. Fill the Viscosity Cup (33) with
paint (holding it over the container), and immediately begin to time how long it takes the
Viscosity Cup (33) to empty. The time it takes to empty the Viscosity Cup (33) is the
viscosity of the paint. If the paint is outside of the range (10-14 DINs), take the appropri-
ate measures to thin it (see manufacturer’s instructions).
Preparing the Object to be Painted.
1.
Thoroughly clean the object or area that you are painting. Remove any old paint,
scaling, or rust from the surface.
2.
3.
If necessary, make the surface smooth (using sandpaper).
Read the instructions on the paint can to determine whether or not you need to
apply a fixative/adhesive to the surface to save paint.
Preparing the Spray Gun
1.
After making sure the paint is the proper viscosity, thoroughly mix the paint.
2.
Remove the Cup Cover (19) (twist counterclockwise) and fill the Paint Cup (24) to
just below the top.
3.
4.
Replace the Cup Cover (19). Twist clockwise.
Connect the Spray Gun to the Spiral Air Hose (46) by snapping it into place. All
connections snap into place as illustrated in FIGURE 2 below.
Motor Unit
FIGURE 2
FIGURE 3
Attaching Gun Tray
Gun Tray (41)
Spiral Air Hose (46)
Spray Gun or Inflator
REV 11/056
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Page 11
ASSEMBLY AND OPERATING INSTRUCTIONS (continued)
5.
6.
Secure the Spray Gun in the Gun Tray (41). If the Gun Tray (41) is not attached to the
Motor Unit, attach it as shown in FIGURE 3 on page 11.
To adjust the type of spray required, loosen the Lock Ring (17) and rotate the Fluid
Tip (16) for a horizontal, vertical, or round spray. Practice spraying on scrap mate-
rial to get the feel of the adjustments. When finished, tighten the Lock Ring (17).
Note: Horizontal and vertical sprays are recommended for larger surfaces, and
round sprays are used for small objects or difficult to reach areas.
7.
8.
9.
10.
Plug in the unit.
Switch (31)
FIGURE 4
Place the Strap (28) over you shoulder.
Turn on the Switch (31). See FIGURE 4.
Pointing the Spray Gun at scrap material for prac-
tice, gently squeeze the Trigger (25) to begin
spraying.
11.
To adjust the paint flow, turn the Fluid Needle
Screw (1) while pulling the Trigger (25), until the correct flow is obtained.
Note: Never cover the Vent (18), and never hold the Spray Gun upside down.Covering the
vent will halt paint flow, and holding the Spray Gun upside down will spill out paint.
12.
The Spray Gun should be moved with a regular motion, keeping a consistent dis-
tance from the object. The Spray Gun must always be parallel to the surface of the
object being painted. Let go of the Trigger (25) after each pass.
Note: Avoid circular motions as they may damage the finish of the surface.
13. When you are finished, release the Trigger (25) and turn off the Switch (31).
Warning! Air may still be in the Spiral Air Hose (46) after turning off the unit. Always point
the unit at scrap material or into a bucket and fire the unit after turning it off.
Troubleshooting
Cause
Solution
Problem
-product too diluted
- spray adjustment
-slow sprayer movement
- clogged gun
- add undiluted product
- reduce paint flow
- faster sprayer movement
- let go of Trigger when reversing
- increase distance between gun and
object
The Paint Drips on
object to be painted
- distance problem
-product too diluted
- spray adjustment
-fast movement
- gun clogged
- add undiluted product
- increase paint flow
- move slower
- clean gun
- increase distance between
gun and object
Weak or irregular spray
No Paint Coverage
- gun distance
-product not diluted enough
- paint too thick
- gun clogged
- add thinner
- check viscosity and adjust
- clean gun
- hose broken
- replace hose
- Filter (30) clogged
- Grainy paint
- Cup Cover (19) not closed
- replace filter
- filter paint through cheesecloth
- tightly close Cup Cover (19)
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Page 12
Note: A small Inflator (32) accessory comes with this unit. To fill a raft or air mattress,
attach the inflator as shown in FIGURE 2 on page 11. When the inflator is attached to
the object being inflated, start the unit using the Switch (31). Turn off the unit when the
object is inflated. Read the instruction manual of the object to be inflated to
determine the recommended and maximum PSI for filling the object. You will have
to check the air pressure of the object by using a separate air pressure gauge (not
included). Do not overinflate. Overinflating may cause the object to explode.
INSPECTION, MAINTENANCE, AND CLEANING
1.
2.
WARNING! Make sure the Power Switch (31) of the Motor Unit is in its
“OFF” position and that the tool is unplugged from its electrical outlet before
performing any inspection, maintenance, or cleaning procedures.
BEFORE EACH USE, inspect the general condition of the Sprayer. Check for
loose screws, misalignment or binding of moving parts, cracked or broken parts,
damaged electrical wiring, and any other condition that may affect its safe opera-
tion. If abnormal noise or vibration occurs, have the problem corrected before
further use. Do not use damaged equipment.
3.
4.
After each use, clean the gun immediately. Open the Cup Cover (19) and
remove the Paint Cup (24). Replace left over paint in its container and seal the
container. Pour small amounts of thinner into the Paint Cup (24) and replace the
Cup Cover (19). Fire the Spray Gun into a paint waste receptacle until the thin-
ner comes out completely clean. Repeat if necessary. Clean off any trace of
paint from the Spray Gun. Clean off the Gasket (20) that is under the Cup Cover
(19).
Clean the Fluid Nozzle (15) and the Fluid Needle (4). First, unlock and remove
the Lock Ring (17), and Fluid Tip (16). Completely loosen the Fluid Needle Screw
(1). Remove the Needle Spring (2) and push out the Fluid Needle (4). Do not
use tools as they will bend the part. Put the parts in a container with thinner and
clean them. Replace them in the proper order. Refer to the Assembly Drawing
on page 15.
5.
6.
Run water through the Spiral Air Hose (46) making sure it is clean inside. Discon-
nect the Spiral Air Hose from spray gun or inflator and the motor unit, then allow it
to dry before reassembly.
Make sure the Gasket (20) on the Paint Cup (24) is not torn or broken. If it is,
replace it immediately. Always make sure the Gasket (20) is on correctly.
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Page 13
PARTS LIST
Part
1
2
3
4
5
6
7
8
Description
Fluid Needle Screw
Needle Spring
Washer
Fluid Needle
Needle Cover
Needle SealingThread
Gasket
Bolt
Plug
Washer
Pin
Qty.
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Part
Description
Paint Cup
Trigger
Handle O-ring
Gun Body
Strap
Exhaust Cover
Filter
Switch
Inflator
Viscosity Cup
Cord
Qty.
1
1
2
1
1
1
1
2
1
1
1
1
1
1
8
1
7
1
1
1
1
1
1
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Washer
Pin Board
SealingThread Head
Sealing Ring Head
Fluid Nozzle
FluidTip
Lock Ring
Vent
Cup Cover
Gasket
Inner Cover
HexThread
MaterialTube
FrontTurbine Shell Pin
Back Turbine Shell Pin
FixedTurbine Pin
LeftTurbine Shell
Pad
GunTray
Turbine O-ring
Turbine
RightTurbine Shell
Combined Gun Body
Spiral Air Hose
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION ORWARRANTY OF ANY KINDTO THE BUYERTHAT
HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/
OR DISTRIBUTOR EXPRESSLY STATESTHAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE
BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.
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Page 14
ASSEMBLY DIAGRAM
NOTE: Some parts are listed and shown for illustration purposes only, and are not
available individually as replacement parts.
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Page 15
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