Central Pneumatic 97855 Installation manual

HEAVY DUTY AIR PAINT
SPRAY GUN
97855
SET UP AND OPERATING INSTRUCTIONS
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2008 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. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements,
actual product may differ slightly from the product described herein.
For technical questions or replacement parts, please call 1-800-444-3353.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 2
CONTENTS
SAFETY ALERT SYMBOL AND
SIGNAL WORDS .............................3
IMPORTANT SAFETY
INSTRUCTIONS .......................... 3
GENERAL...........................................3
WORK AREA......................................3
PERSONAL SAFETY ......................... 4
TOOL USE AND CARE ......................4
SERVICE ............................................5
AIR SOURCE......................................5
SYMBOLS AND SPECIFIC
SAFETY INSTRUCTIONS ........... 5
SYMBOL DEFINITIONS ..................... 5
SPECIFIC SAFETY INSTRUCTIONS 6
FUNCTIONAL DESCRIPTION....... 7
SPECIFICATIONS ..............................7
COMPONENTS AND CONTROLS ....7
INITIAL TOOL SET UP/
ASSEMBLY.................................. 7
UNPACKING.......................................7
AIR SUPPLY.......................................7
OPERATING INSTRUCTIONS ...... 9
TOOL SET UP ....................................9
WORK PIECE AND WORK AREA
SET UP ............................................9
GENERAL OPERATING
INSTRUCTIONS ............................10
A COMPARISON:
CONVENTIONAL VERSUS
HVLP SPRAY GUNS ................. 11
PREPARATION............................ 11
USER-MAINTENANCE
INSTRUCTIONS ........................ 13
CLEANING, MAINTENANCE, AND
SERVICING....................................13
SOLVENT SELECTION ..............13
AFTER EACH USE:....................13
TROUBLESHOOTING................. 14
TROUBLESHOOTING..........................
PARTS LIST................................. 17
ASSEMBLY DIAGRAM................ 18
LIMITED 1 YEAR / 90 DAY
WARRANTY .............................. 19

SKU 97855 For technical questions, please call 1-800-444-3353. Page 3
SAVE THIS MANUAL
Keep this manual for the safety warn-
ings and precautions, assembly, operat-
ing, inspection, maintenance and cleaning
procedures. Write the product’s serial
number in the back of the manual near the
assembly diagram (or month and year of
purchase if product has no number). Keep
this manual and the receipt in a safe and
dry place for future reference.
Safety Alert Symbol and Signal
Words
In this manual, on the labeling,
and all other information provid-
ed with this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
IMPORTANT SAFETY
INSTRUCTIONS
INSTRUCTIONS PERTAINING
TO A RISK OF FIRE,
ELECTRIC SHOCK, OR
INJURY TO PERSONS
WARNING – When using tools, basic pre-
cautions should always be followed,
including the following:
General
a. To reduce the risks of re and inju-
ry to persons, read all the instruc-
tions before using this tool.
b. Before using the spray gun for the
rst time, be sure to clean it out
with a solvent based thinner. The
manufacturer often uses a red oil to
test the units. This oil may contami-
nate the paint.
c. It is important to clean the spray
gun thoroughly after every use.
Work area
a. Keep the work area clean and well
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, re, and injury to persons.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 4
b. Do not operate the tool in explo-
sive atmospheres, such as in the
presence of ammable liquids,
gases, or dust. The tool is able to
create sparks resulting in the ignition
of the dust or fumes.
c. Keep bystanders, children, and
visitors away while operating the
tool. Distractions are able to result in
the loss of control of the tool.
Personal safety
a. Stay alert. Watch what you are do-
ing and use common sense when
operating the tool. Do not use the
tool while tired or under the inu-
ence of drugs, alcohol, or medica-
tion. A moment of inattention while
operating the tool increases the risk
of injury to persons.
b. Avoid unintentional starting. Be
sure the switch is off before con-
necting to the air supply. Do not
carry the tool with your nger on the
switch or connect the tool to the air
supply with the switch on.
c. Do not overreach. Keep proper
footing and balance at all times.
Proper footing and balance enables
better control of the tool in unexpect-
ed situations.
d. Use safety equipment. A
dust mask, non-skid safety
shoes and a hard hat must
be used for the applicable
conditions. Wear heavy-duty work
gloves during use.
e. Always wear eye protec-
tion. Wear ANSI-ap-
proved safety goggles.
Tool use and care
a. Use clamps or another practical
way to secure and support the
workpiece to a stable platform.
Holding the work by hand or against
the body is unstable and is able to
lead to loss of control.
b. Do not force the tool. Use the
correct tool for the application. The
correct tool will do the job better and
safer at the rate for which the tool is
designed.
c. Do not use the tool if the switch
does not turn the tool on or off.
Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.
d. Disconnect the tool from the air
source before making any adjust-
ments, changing accessories, or
storing the tool. Such preventive
safety measures reduce the risk of
starting the tool unintentionally. Turn
off and detach the air supply, safely
discharge any residual air pressure,
and release the throttle and/or turn
the switch to its off position before
leaving the work area.
e. Store the tool when it is idle out of
reach of children and other un-
trained persons. A tool is dangerous
in the hands of untrained users.
f. Check for misalignment or bind-
ing of moving parts, breakage of
parts, and any other condition that
affects the tool’s operation. If dam-
aged, have the tool serviced before
using. Many accidents are caused
by poorly maintained tools. There is a
risk of bursting if the tool is damaged.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 5
g. Use only accessories that are
identied by the manufacturer for
the specic tool model. Use of an
accessory not intended for use with
the specic tool model, increases the
risk of injury to persons.
Service
a. Tool service must be performed
only by qualied repair personnel.
b. When servicing a tool, use only
identical replacement parts. Use
only authorized parts.
c. Use only the lubricants supplied
with the tool or specied by the
manufacturer.
Air source
a. Never connect to an air
source that is capable of
exceeding 115 psi. Over
pressurizing the tool may
cause bursting, abnormal operation,
breakage of the tool or serious injury
to persons. Use only clean, dry,
regulated compressed air at the rated
pressure or within the rated pressure
range as marked on the tool. Always
verify prior to using the tool that the
air source has been adjusted to the
rated air pressure or within the rated
air-pressure range.
b. Never use oxygen, carbon dioxide,
combustible gases or any bottled
gas as an air source for the tool.
Such gases are capable of explosion
and serious injury to persons.
SAVE THESE
INSTRUCTIONS.
SYMBOLS AND
SPECIFIC SAFETY
INSTRUCTIONS
Symbol Denitions
Symbol Property or statement
noNo-load speed
.../min Revolutions or reciprocation per
minute
PSI Pounds per square inch of pressure
ft-lb Foot-pounds of torque
BPM Blows per minute
CFM Cubic Feet per Minute ow
SCFM Cubic Feet per Minute ow at
standard conditions
NPT National pipe thread, tapered
NPS National pipe thread, straight
WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
eye protection.
WARNING marking concerning Risk
of Hearing Loss. Wear hearing
protection.
WARNING marking concerning Risk
of Respiratory Injury. Wear NIOSH-
approved dust mask/respirator.
WARNING marking concerning Risk
of Explosion.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 6
Specic Safety Instructions
1. The warnings and precautions dis-
cussed in this manual cannot cover
all possible conditions and situations
that may occur. It must be under-
stood by the operator that common
sense and caution are factors which
cannot be built into this product, but
must be supplied by the operator.
2. WARNING: Some airborne dust
created by a spray gun may contain
chemicals known [to the State of
California] to cause cancer, birth de-
fects or other reproductive harm. An
example of this is:
• Lead from lead-based paints
Your risk from these exposures var-
ies, depending on how often you do
this type of work. To reduce your
exposure to these chemicals: work in
a well ventilated area, and work with
approved safety equipment, such
as those dust masks or respirators
that are specially designed to lter
out microscopic particles. (California
Health & Safety Code § 25249.5, et
seq.)
WARNING: The brass components of
this product contain lead, a chemical
known to the State of California to
cause birth defects (or other repro-
ductive harm). (California Health &
Safety code § 25249.5, et seq.)
3. Only use with accessories rated to
handle the forces exerted by this tool
during operation. Other accessories
not designed for the forces gener-
ated may break and forcefully launch
pieces.
4. Attach all accessories properly to the
tool before connecting the air sup-
ply. A loose accessory may detach or
break during operation.
5. Obey the manual for the air compres-
sor used to power this tool.
6. Install an in-line shutoff valve to allow
immediate control over the air supply
in an emergency, even if a hose is
ruptured.
SAVE THESE
INSTRUCTIONS.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 7
FUNCTIONAL DESCRIPTION
Specications
Cup Capacity 1 Quart
Operating Air Pressure 60 PSI
Maximum Air Pressure 115 PSI
Air Consumption 10 SCFM @ 60 PSI
Air Inlet 1/4" -18 NPS
Nozzle Size 0.07"
Needle Size 1/8" dia.
Draw Type Siphon Feed
Spray Pattern Horizontal, vertical,
round, diagonal
Components and Controls
Fig. 1
Fluid Control
Knob (16)
Trigger (7)
Cup
Locking
Lever (32)
Air Inlet (20)
Cup Mounting
Yoke (33)
Cup (31)
Pattern Control Knob (10) Air Cap (1)
INITIAL TOOL SET UP/
ASSEMBLY
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Unpacking
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown throughout the manual as soon as
possible.
• This air tool may be shipped with a
protective plug covering the air inlet.
Remove this plug before set up.
Air Supply
TO PREVENT
EXPLOSION:
Use only clean, dry, regulated,
compressed air to power this
tool. Do not use oxygen,
carbon dioxide, combustible
gases, or any other bottled
gas as a power source for this
tool.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 8
1.
Fig. 2
Incorporate a shut-off valve, regula-
tor with pressure gauge, and lter
for best service, as shown in the
diagram above. An in-line shutoff
valve is an important safety device
because it controls the air supply
even if the air hose is ruptured.
2. Attach an air hose to the compres-
sor’s air outlet. Connect the air hose
to the air inlet of the tool. Other com-
ponents, such as a connector and
quick coupler, will make operation
more efcient, but are not required.
WARNING! TO PREVENT SERIOUS
INJURY FROM ACCIDENTAL
OPERATION:
Do not install a female quick
coupler on the tool. Such a coupler
contains an air valve that will allow
the air tool to retain pressure and
operate accidentally after the air
supply is disconnected.
Note: Air ow, and therefore tool perfor-
mance, can be hindered by under-
sized air supply components.
3. The air hose must be long enough
to reach the work area with enough
extra length to allow free movement
while working.
4. Make sure the tool’s throttle or trigger
switch is in the off position; refer to
Operation section for description of
controls.
5. Close the in-line safety valve be-
tween the compressor and the tool.
6. Turn on the air compressor according
to the manufacturer’s directions and
allow it to build up pressure until it
cycles off.
7. Adjust the air compressor’s output
regulator so that the air output is
enough to properly power the tool,
but the output will not exceed the
tool’s maximum air pressure at any
time. Adjust the pressure gradually,
while checking the air output gauge
to set the correct pressure range.
8. Attach the air supply hose to the tool.
Inspect the air connections for leaks.
Repair any leaks found.
9. If the tool will not be used at this
time, turn off and detach the air sup-
ply, safely discharge any residual air
pressure, and release the throttle
and/or turn the switch to its off posi-
tion to prevent accidental operation.
Note: Residual air pressure should not be
present after the tool is disconnected
from the air supply. However, it is a
good safety measure to attempt to
discharge the tool in a safe fashion
after disconnecting to ensure that the
tool is disconnected and not under
pressure.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 9
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Inspect tool before use, looking
for damaged, loose, and
missing parts. If any problems
are found, do not use tool until
repaired.
Tool Set Up
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off the tool, detach the
air supply, safely discharge
any residual air pressure in
the tool, and release the
throttle and/or turn the switch
to its off position before
performing any inspection,
maintenance, or cleaning
procedures.
TO PREVENT SERIOUS
INJURY:
Do not adjust or tamper with
any control or component in a
way not specically explained
within this manual. Improper
adjustment can result in
tool failure or other serious
hazards.
1. The spray gun must be cleaned with
a solvent based thinner before being
used for the rst time. If not done, the
red oil used by the manufacturer for
testing and corrosion protection may
contaminate the paint.
2. This spray gun must be thoroughly
cleaned after every use. If a solvent
based paint was used, clean with
a solvent based thinner. If a water
based latex type paint was used then
clean with water. If this is not done,
it is likely that the spray gun will stop
working properly.
3. Run the water or solvent through the
Spray Gun under pressure for sev-
eral minutes to clean out any residual
paint material.
Work Piece and Work Area Set Up
1. Designate a work area that is clean
and well-lit if possible. The work area
must not allow access by children or
pets to prevent injury and distraction.
2. Route the air hose along a safe route
to reach the work area without creat-
ing a tripping hazard or exposing the
air hose to possible damage. The air
hose must be long enough to reach
the work area with enough extra
length to allow free movement while
working.
3. Secure loose workpieces when nec-
essary using a vise or clamps (not
included) to prevent movement while
working.
4. Spraying should be done away from
objects and structures which are not
intended to be painted.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 10
General Operating Instructions
1. Start the compressor, allowing it to
come up to the proper pressure for
the tool.
2. Wipe off any lubricant that may have
been applied from prior use. The
Spray Gun can now be tested.
3. Fill the Cup (31) with the appropriate
amount of paint (up to 3/4 full) of
properly prepared material (see
section on “Preparation”.
4. After the compressor cycles off at the
proper pressure level, connect the air
hose to the Air Inlet Coupling (20).
5. Attach the Cup (31) to the tool using
the Cup Mounting Yoke (33) and
secure with the Cup Locking Lever
(32).
6. If the tool requires more force to
accomplish the task, verify that the
tool receives sufcient, unobstructed
airow (CFM) and increase the
pressure (PSI) output of the regulator
up to but not beyond, the maximum
air pressure rating of this tool.
CAUTION! TO PREVENT TOOL
AND ACCESSORY FAILURE,
RESULTING IN INJURY:
Do not exceed the tool’s maximum
air pressure rating.
If the tool still does not have sufcient
force at maximum pressure but the
material being sprayed has proper
viscosity, then a larger tool may be
required.
7. To prevent accidents, turn off the
tool, detach the air supply, safely
discharge any residual air pressure in
the tool, and/or turn the switch to its
off position after use. Clean external
surfaces of the tool with clean, dry
cloth. Then store the tool indoors out
of children’s reach.
8. Change Fan Direction.
a. Loosen the Air Ring (2) and turn the
Air Cap (1) to change spray pattern
between horizontal and vertical.
9. Pattern Adjustment. (Never exceed
maximum inlet pressure of 115 PSI.)
a. To reduce air pressure when neces-
sary, adjust the air compressor’s
pressure regulator.
b. To change between patterns, adjust
the Pattern Control Knob (10). Turn
counterclockwise (all the way open),
to atten the pattern. Turn clockwise
for a round pattern.
10. For best service you should incorpo-
rate a regulator and in-line lter, as
shown in the diagram above. Hoses,
couplers, regulators, and lters are all
available at Harbor Freight Tools.
Note: Compressor pumps discharge
condensed water, oil, or other con-
taminants along with the compressed
air. Condensation causes “sh eyes”
to appear in paint patterns. To avoid
this problem, install water/oil removal
lters and controls (not included) as
close to the Spray Gun as possible.
If run through the Spray Gun, water
or oil will cause damage.
11. You will need to prepare a 1/4" air
connector (sold separately) to con-
nect to the air inlet on the Spray Gun.
First, wrap the 1/4" air connector (not
included) with pipe thread seal tape
before threading it into the Air Inlet
(20). Connect the 3/8" ID air source
hose to the Spray Gun.
12. Set the air pressure on your com-
pressor to 60 PSI. Do not exceed the
maximum operating air pressure of
115 PSI.
13. Check the air connections for leaks.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 11
PREPARATION
Note: Proper paint/material mixture helps
to ensure less problems. Be sure to
follow the manufacturer’s directions.
General tips for Preparation:
1. Mix and thin the paint/materials
thoroughly according to the manufac-
turer’s directions.
2. Carefully strain the paint/material
through a paint strainer or piece of
cheese cloth.
3. Swing the Cup Locking Lever (32) out
of the locked position to remove the
Cup (31) from the Unit. Fill the Cup
to approximately 3/4 full. Place the
Cup back in the Cup Mounting Yoke
(33), rotate the Cup to lock it onto
the yoke, and swing the Cup Locking
Lever (32) to the locked position.
4. Start the air compressor.
5. To adjust the spray pattern, set up a
piece of scrap material to practice on.
While practicing on the scrap mate-
rial, check to see that the liquid you
are spraying has the appropriate con-
sistency. If it appears too thick, add a
very small amount of thinner or water
(not included). BE CAREFUL when
thinning. Proceed slowly, adding very
minimal amounts. NEVER exceed
the paint manufacturer’s thinning rec-
ommendations.
Fan Direction
To change the direction of the fan,
loosen the Lock Ring (2) and turn the Air
Cap (1) 90°. After the adjustment, tighten
the Lock Ring (2) by hand. (See FIG. 3
below.)
FIGURE 3
Horizontal Fan
Vertical Fan
Air Cap
Lock Ring (2)
Fig. 3

SKU 97855 For technical questions, please call 1-800-444-3353. Page 12
Pattern Adjustment
Warning!! Never exceed the Maxi-
mum Inlet PSI of 115 PSI.
1. If you need to reduce the air pressure
for specic areas, adjust the pressure
regulator of the air compressor.
2. To set the pattern size specic to the
job, use the Pattern Control Knob
(10) (see FIG. 1). By turning it coun-
terclockwise (all the way open), the
pattern will atten. Turn the Pattern
Control Knob (10) clockwise for a
round pattern. (See FIG. 4 below.)
1. Turn the Needle Adjusting Screw (16)
clockwise until it is fully closed. (See
FIG. 1.)
2. After setting up a piece of scrap ma-
terial, squeeze the Trigger (7) in short
bursts while turning the Needle Ad-
justing Screw (16) counterclockwise
and observe the spray patterns until
you see the pattern you want. Also,
look at the pattern for consistency.
Too much air may cause the spray
to come out too ne. Reduce the
air pressure or allow more material
to come out by opening the Needle
Adjusting Screw (16). If the spray
appears too thick (you see globs of
paint), close down the Needle Adjust-
ing Screw (16) slowly, checking the
mixture after each adjustment. (See
FIG. 5 below.)
FIG. 5
Too Fine
(Loosen)
Too Coarse
(Tighten)
Correct
Flat/Open Round/Closed
FIG. 4

SKU 97855 For technical questions, please call 1-800-444-3353. Page 13
USER-MAINTENANCE
INSTRUCTIONS
Procedures not specically
explained in this manual
must be performed only by a
qualied technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off the tool, detach the
air supply, safely discharge
any residual air pressure in
the tool, and release the
throttle and/or turn the switch
to its off position before
performing any inspection,
maintenance, or cleaning
procedures.
TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE:
Do not use damaged
equipment. If abnormal
noise, vibration, or leaking
air occurs, have the problem
corrected before further use.
Cleaning, Maintenance, and
Servicing
Solvent Selection
Always follow the paint manufactur-
er’s recommendations for cleaning, sol-
vent type, and disposing of used solvent.
Run the water or solvent, depending on
the type of paint used, under pressure for
several minutes at least to clean out the
inner channels and the spray orice.
Latex Paints: Use warm, soapy water.
IMPORTANT: Do not use mineral
spirits on latex paints or the mixture
will congeal making it very difcult
to remove.
Oil Based Paints: Use mineral spirits.
After each use:
1. Empty the paint Cup (31) and clean it
with solvent, or water for latex paint.
2. Fill the paint Cup (31) with solvent
and spray it through the Gun into
a container, while shaking the gun.
Once the paint Cup (31) is empty,
repeat the process until the solvent
comes out clean.
3. Disconnect from the air source.
After disconnecting, be aware that air
pressure may still remain in the Spray
Gun. Point the Gun into the spent
solvent container and squeeze the
Trigger (7) again to make sure no air
remains.
4. Remove the Air Cap (1) and soak
it in solvent until it is clean. Use an
old toothbrush and/or toothpicks to
remove any material. Do not use
metal objects to clean the Air Cap
(1) or you may damage the drilled
passages. Inspect the needle and
make sure it is not bent. If it is bent,
have it replaced by a certied service
technician.
Warning!! Do not immerse the Spray Gun
Body in solvent!
5. Use the appropriate solvent (depend-
ing on the material sprayed) to wipe
down the Gun body.
6. Always lubricate the Spray Gun after
cleaning. You may use a non-silicon
oil or a light lubricant on all threaded
connections prior to storing the unit.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 14
7. Disposal: After cleaning your Spray
Gun, properly dispose of your clean-
ing solutions according to the solution
manufacturer’s direction and local
hazardous waste standards.
Note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular op-
eration of the air-operated tool.
8. Daily - Air Supply Maintenance:
Every day, perform maintenance on
the air supply according to the manu-
facturers’ instructions. Performing
routine maintenance on the air sup-
ply will allow the tool to operate more
safely and will also reduce wear on
the tool.
9. Quarterly (every 3 months) - Tool
Disassembly, Cleaning, and In-
spection:
Have the internal mechanism cleaned
and inspected by a qualied techni-
cian.
TROUBLESHOOTING
Spray Pattern Diagnosis
The Patterns below resemble
symptoms of spray pattern problems.
Please refer to the accompanying
possible problems if you are
experiencing similar difculties. The
solution to each problem follows the
problem in parentheses.
Problem 1:
1. The Pattern Control Knob (10) is par-
tially closed. (Open Pattern Control
Knob (10).)
2. The material is too thick. (Thin mate-
rial according to the manufacturer’s
instructions.)
3. The air pressure is too low. (Increase
air pressure within the Maximum PSI
(115).
Problem 2:
1. High air pressure. (Reduce air pres-
sure.)
2. Not enough uid. (Increase uid.)
3. Pattern Control Knob (10) open too
much. (Partially close Pattern Control
Knob (10).)
Problem 3:
1. Air Cap (1) plugged. (Clean the Air
Cap (1).)
2. Air cap (1) loose or dirty seat. (Clean
Air Cap and threads with a stiff bristle
brush such as an old toothbrush,
wipe, reinstall and tighten.)
3. Dried material on Fluid Nozzle (4).
(Use a nonmetallic point to clean the
Fluid Nozzle (1).
Problem 4:
1. Dirt on one side of the uid nozzle.
(Clean the uid nozzle.)
2. Holes on one side of the Air Cap (1)
are plugged. (Clean the Air Cap (1)
with a nonmetallic point.) Some of
the holes in the Air Cap (1) are very
small. You may want to consider an
ultrasonic cleaner for this job.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 15
Troubleshooting (continued)
Problem Cause Solution
Sputtering Spray
1. Low material level
2. Cup tipped too far
3. Clogged Air Vent
4. Loose uid inlet connections
5. Dry or loose uid needle Packing
Nut
6. Loose/damaged uid tip/seat
1. Rell
2. Hold upright
3. Clean vent hole
4. Tighten
5. Lubricate and/or tighten
6. Adjust or replace
Will Not Spray
1. No pressure at gun
2. Fluid control not open enough
3. Fluid too thick
1. Check air hoses
2. Open uid control
3. Thin uid or increase pressure
(within Maximum range)
Overspray
1. Improper application speed
2. Improper distance from workpiece
3. Too much pressure
1. Move moderately and parallel
2. Adjust distance
3. Reduce air pressure
Fluid Tip Leakage
1. Dirty tip
2. Tight Packing Nut
3. Broken uid needle spring
4. Worn or damaged tip
1. Clean
2. Loosen Packing Nut
3. Replace
4. Replace tip and/or needle
Air Leaking from Air
Cap
1. Dirty air valve/seat
2. Sticking air valve
3. Damaged air valve spring
4. Worn/damaged air valve/seat
5. Bent valve stem
1. Clean
2. Lubricate
3. Replace
4. Replace
5. Replace
Fluid Leaking from
Packing Nut
1. Packing Nut loose
2. Packing worn or dry
1. Tighten without restricting
2. Replace or lubricate (non-silicone)

SKU 97855 For technical questions, please call 1-800-444-3353. Page 16
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 OR WARRANTY OF ANY KIND TO THE BUYER THAT
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 STATES THAT 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.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 17
PARTS LIST
Part Description Qty
1 Air Cap 1
2 Lock Ring 1
3 Brass Ring 1
4 Fluid Nozzle 1
5 Trigger Bolt 1
6 Gasket 1
7 Trigger 1
8 Gun Body 1
9 Pattern Valve Seat 1
10 Pattern Control Knob 1
11 Pattern Needle 1
12 Gasket 1
13 O-Ring 1
14 Needle Spring 1
15 Needle Holder 1
16 Fluid Control Knob 1
17 Needle 1
18 Needle Screw 1
19 Needle Seat 1
20 Air Inlet Coupling 1
21 Air Valve Spacer 1
22 O-Ring 1
23 Air Valve 1
24 Air Spring 1
25 Air Valve Seat 1
26 Air Valve Cap 1
27 Air Valve Screw 1
28 Fluid Inlet Coupling 1
29 Needle Guide 1
30 Needle Packing Screw 1
31 Cup (See Fig.1) 1
32 Cup Locking Lever (See Fig.1) 1
33 Cup Mounting Yoke (See Fig.1)

SKU 97855 For technical questions, please call 1-800-444-3353. Page 18
ASSEMBLY DIAGRAM
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.

SKU 97855 For technical questions, please call 1-800-444-3353. Page 19
90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
and durability standards, and warrants to the original purchaser that this product is free
from defects in materials and workmanship for the period of 90 days from the date of
purchase. This warranty does not apply to damage due directly or indirectly, to misuse,
abuse, negligence or accidents, repairs or alterations outside our facilities, criminal
activity, improper installation, normal wear and tear, or to lack of maintenance. We
shall in no event be liable for death, injuries to persons or property, or for incidental,
contingent, special or consequential damages arising from the use of our product.
Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY
IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the
complaint must accompany the merchandise. If our inspection veries the defect, we
will either repair or replace the product at our election or we may elect to refund the
purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that
the defect resulted from causes not within the scope of our warranty, then you must
bear the cost of returning the product.
This warranty gives you specic legal rights and you may also have other rights which
vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]