Central Pneumatic 99659 Installation manual

AIR COMPRESSOR
12 VOLT / 150 PSI
99659
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. Tools required for
assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.

SKU 99659 For technical questions, please call 1-800-444-3353. Page 2
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
To reduce the risks of electrica.
shock, re, and injury to persons,
read all the instructions before us-
ing the tool.
Work area
Keep the work area clean and wella.
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, re, and injury to persons.
Do not operate the tool in explo-b.
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.
Keep bystanders, children, andc.
visitors away while operating the

SKU 99659 For technical questions, please call 1-800-444-3353. Page 3
tool. Distractions are able to result in
the loss of control of the tool.
Personal safety
Stay alert. Watch what you are do-a.
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.
Dress properly. Do not wear looseb.
clothing or jewelry. Contain long
hair. Keep hair, clothing, and
gloves away from moving parts.
Loose clothes, jewelry, or long hair
increases the risk of injury to persons
as a result of being caught in moving
parts.
Avoid unintentional starting.c.
Be sure the Switch (16) is in the
“OFF” position before connecting
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. Doing so will increas-
es the risk of personal injury.
Do not overreach. Keep properd.
footing and balance at all times.
Proper footing and balance enables
better control of the tool in unexpect-
ed situations.
e. 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.
f. Always wear eye protec-
tion. Wear ANSI-ap-
proved safety goggles.
g. Always wear hearing
protection when using
the tool. Prolonged expo-
sure to high intensity noise
is able to cause hearing loss.
Risk of Electric Shock. This toolh.
is not provided with an insulated
gripping surface. Contact with a
″live″ wire will also make exposed
metal parts of the tool ″live″ and
shock the operator.
Tool use and care
Do not use the tool if the Switcha.
does not turn the tool on or off.
Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.
Disconnect the tool from the airb.
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.
Store the tool when it is idle out ofc.
reach of children and other un-
trained persons. A tool is dangerous
in the hands of untrained users.
Maintain the tool with care.d. Keep a
cutting tool sharp and clean. A prop-
erly maintained tool, with sharp cut-

SKU 99659 For technical questions, please call 1-800-444-3353. Page 4
ting edges reduces the risk of binding
and is easier to control.
Check for misalignment or bind-e.
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.
Use only accessories that aref.
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
Tool service must be performeda.
only by qualied repair personnel.
When servicing a tool, use onlyb.
identical replacement parts. Use
only authorized parts.
SAVE THESE
INSTRUCTIONS.
SYMBOLS AND
SPECIFIC SAFETY
INSTRUCTIONS
Symbol Denitions
Symbol Property or statement
noNo-load speed
.../min Revolutions or reciprocation per
minute
Chart continued in next column.
Symbol Denitions
Symbol Property or statement
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.
Specic Safety Instructions
The warnings and precautions dis-1.
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.
CAUTION! Warranty is voided if2.
you drop Air Compressor. Always
lift Compressor using Handle (17).
WARNING!3. This Air Compressor
is NOT equipped and should not
be used “as-is” to supply breath-

SKU 99659 For technical questions, please call 1-800-444-3353. Page 5
ing air. For any application of air for
human consumption, you must t the
Air Compressor with suitable in-line
safety and alarm equipment (not in-
cluded). This additional equipment is
necessary to properly lter and purify
the air to meet minimal specications
for Grade D breathing as described in
Compressed Gas Association Com-
modity Specication G 7.1-1966,
OSHA 29 CFR 1910. 134, and/or
Canadian Standards Associations
(CSA). In the event the Air Compres-
sor is used for the purpose of breath-
ing air application and proper in-line
safety and alarm equipment is not
simultaneously used, existing war-
ranties are void, and Harbor Freight
Tools disclaims any liability whatso-
ever for any loss, personal injury, or
damage.
Do not use Compressor continu-4.
ously for over 15 minutes. Allow
the Compressor to cool approximate-
ly 12 to 15 minutes after inating an
item.
Do not overinate objects.5. Check
pressure continually while inating.
Use tire pressure gauge to check the
actual pressure in the item inated.
Do not inate any item over or under
its manufacturer’s recommended PSI
rating.
Make sure all inatable items used 6.
with Air Compressor are inated to
the appropriate capacity. Inatable
items constructed of soft materials
(balls, beach toys, air mattresses,
rubber rafts, etc.) usually will not
show the manufacturer’s recom-
mended air pressure. Take care not
to over-inate the object.
Replace fuse only with another 207.
amp glass tube fuse. Connect only
to 12V negative ground circuit.
Avoid burns. After several minutes of8.
use, Compressor will become hot to
the touch. Always wear heavy duty
safety gloves when during use.
Do not point the Nozzle (28) at9.
skin, other people or animals.
Make sure the Air Compressor is10.
located on a at, level, sturdy surface
capable of supporting the weight of
the Compressor.
Industrial applications must follow11.
OSHA guidelines.
Never leave the Air Compressor unat-12.
tended when it is plugged in and run-
ning. Turn off the Compressor, and
unplug the unit before leaving.
Do not allow children and other unau-13.
thorized people to handle or play with
the Air Compressor.
Do not modify the factory set pres-14.
sure shutoff or startup switches.
This tool will do the work better and
safer at the speed and capacity for
which it was designed.
WARNING!15. The brass components
of this product contain lead, a chemi-
cal known to the State of California
to cause birth defects (or other repro-
ductive harm). (California Health &
Safety code § 25249.5, et seq.)
Only use with accessories rated to16.
handle forces exerted by tool during
operation. Other accessories not de-
signed for the forces generated may
break and forcefully launch pieces.

SKU 99659 For technical questions, please call 1-800-444-3353. Page 6
Attach all accessories properly to the17.
tool before connecting the air sup-
ply. A loose accessory may detach or
break during operation.
Use this tool with both hands only.18.
Using tools with only one hand can
result in loss of control.
Do not lay the tool down until it has19.
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.
Vibration Precautions
This tool vibrates during use. Re-
peated or long-term exposure to vibra-
tion may cause temporary or permanent
physical injury, particularly to the hands,
arms and shoulders. To reduce the risk of
vibration-related injury:
Anyone using vibrating tools regu-1.
larly or for an extended period should
rst be examined by a doctor and
then have regular medical check-
ups to ensure medical problems are
not being caused or worsened from
use. Pregnant women or people
who have impaired blood circulation
to the hand, past hand injuries, ner-
vous system disorders, diabetes, or
Raynaud’s Disease should not use
this tool. If you feel any medical or
physical symptoms related to vibra-
tion (such as tingling, numbness, and
white or blue ngers), seek medical
advice as soon as possible.
Do not smoke during use. Nico-2.
tine reduces the blood supply to the
hands and ngers, increasing the risk
of vibration-related injury.
Wear suitable gloves to reduce the3.
vibration effects on the user.
SAVE THESE
INSTRUCTIONS.
FUNCTIONAL DESCRIPTION
Specications
Electrical Rating 12 VDC / 20 A
Maximum Air Pressure 150 PSI
Output Capacity 1.23 CFM
Maximum Run-time 12-15 Minutes
ON/OFF Cycle Time 12 Min. Off / 15 Min. ON
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, 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 pos-
sible.
This air tool may be shipped with a•
protective plug covering the air inlet.
Remove this plug before set up.

SKU 99659 For technical questions, please call 1-800-444-3353. Page 7
Air Supply
Incorporate an in-line oiler, shut-off1.
valve, regulator with pressure gauge,
and lter for best service, as shown in
the diagram above. An in-line shut-
off valve is an important safety
device because it controls the air
supply even if the air hose is rup-
tured.
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.
The air hose must be long enough2.
to reach the work area with enough
extra length to allow free movement
while working.
Inspect the air connections for leaks.3.
Repair any leaks found.
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:
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.
Work Piece and Work Area Set Up
Designate a work area that is clean1.
and well-lit. The work area must not
allow access by children or pets to
prevent injury and distraction.
Route the air hose along a safe route2.
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.
If an automatic oiler is not used,3. add
a few drops of Pneumatic Tool Oil
to the airline connection before use.
Add a few drops more after each
hour of continual use.
To Inate Automotive Tires:
Place the Air Compressor on a at, 4.
level, dry surface.

SKU 99659 For technical questions, please call 1-800-444-3353. Page 8
Remove the valve cap from the5.
valve stem of a tire. Thread on the
Air Nozzle (28) to the tire stem. (See
Figure A, below.)
Plug the Adapter (14) into the ve-6.
hicle’s cigarette lighter socket.
(See Figure B.) Caution: Always
start the vehicle’s engine prior to op-
erating the Air Compressor so as to
not deplete the vehicle’s battery.
Turn the Air Compressor’s Power7.
Switch (16) to its “ON” position.
The meter is located on top of the8.
Cylinder Cover (24). The maximum
air pressure this unit will produce
is 150 PSI. Do not inate the air
pressure beyond the tire manufac-
turer’s ination rating. To obtain an
accurate air pressure reading, turn off
the Air Compressor when the desired
pressure is indicated on the gauge.
(See Figure A.)
When nished, turn the Power Switch 9.
to its “OFF” position. Remover the
Air Nozzle from the vehicle’s tire
valve stem. Replace the valve cap.
Then, disconnect the Cigarette Light-
er Adapter from the vehicle’s cigarette
lighter socket.
To Inate Balls, Toys, Air Mattress-
es, Rubber Rafts, Etc.:
The compressor comes with three10.
nozzles for inating a variety of items.
Thread on the desired nozzle onto
the Air Nozzle. Insert the nozzle into
the item you want to inate then turn
on the Air Compressor, and inate the
object. Do not over-inate.
When nished, turn the Power Switch 11.
to its “OFF” position. Remove the
nozzle from the inated object. Then,
disconnect the Adapter (14) from the
vehicle’s cigarette lighter socket.
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: Disconnect the
Adapter and allow the
Compressor to cool 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.
Figure A
Nozzle (28)
Adapter
(14)
Switch (16)
Handle (17)

SKU 99659 For technical questions, please call 1-800-444-3353. Page 9
CLEANING, MAINTENANCE,
AND LUBRICATION
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.
WARNING!1. Make sure Power Switch
(16) of Air Compressor is in its “OFF”
position and unit is unplugged from
the vehicle’s cigarette lighter socket
before performing any inspection,
maintenance, or cleaning procedures.
Before each use,2. inspect general
condition of the Air Compressor.
Check for loose screws, misalign-
ment or binding of moving parts,
cracked or broken parts, damaged
electrical wiring, loose air ttings, and
any other condition that may affect
the safe operation of the Compressor.
If abnormal noise or vibration occurs,
have the problem corrected before
further use. Do not use damaged
equipment.
To clean,3. wipe with a clean, damp
cloth and a mild detergent. Then dry.
Do not use solvents. Do not immerse
the unit in liquids.
To replace Adapter (14) fuse,4. un-
screw and remove the cap on the
Cigarette Lighter Adapter. Remove
the old Fuse, and replace with a new
Fuse (type: 20 Amp). Then, screw
the cap back onto the Cigarette
Lighter Adapter.
Troubleshooting
Problem Possible Causes Likely Solutions
Compressor will
not start.
Adapter (14) not securely1.
inserted in vehicle’s cigarette
lighter socket.
Power Switch (16) not on.2.
Vehicle Battery not fully3.
charged.
Blown Adapter fuse.4.
Dirty or damaged brushes5.
Insert Adapter securely.1.
Turn on Power Switch.2.
Charge vehicle Battery.3.
Replace fuse (20 Amp) in Adapter.4.
Inspect, repair or replace brushes.5.
Low pressure. Loose connection(s).1. Make sure all connections are tight.1.
Overload
Protector trips.
Continuous use too long.1. Do not use unit continuously for over 121.
minutes. Allow 30 minutes for unit to cool
down after each use.
Severe air
leakage.
(Slight air leakage
is normal,
especially on older
tools.)
Cross-threaded housing1.
components.
Loose housing.2.
Damaged valve or housing.3.
Dirty, worn or damaged valve.4.
Check for incorrect alignment and uneven1.
gaps. If cross-threaded, disassemble and
replace damaged parts before use.
Tighten housing assembly. If housing cannot2.
tighten properly, internal parts may be
misaligned.
Replace damaged components.3.
Clean or replace valve assembly.4.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.

SKU 99659 For technical questions, please call 1-800-444-3353. Page 10
Part Description Q’ty
1 Rear Base 1
2 Piston Rod 1
3 Bearing 1
4 Gear 1
5 Front Bracket 1
6 Bearing 1
7 Engine Cover 1
8 Magnet 1
9 Rotor 1
10 Carbon Brusher 1
11 Brusher Rest 1
12 Engine Bearing Base 1
13 Rubber Feet 4
14 Adapter 1
15 Back Cover 1
16 Switch 1
17 Handle 1
18 Piston Ring 1
19 Impact Ring 1
20 Steel Cover 1
Part Description Q’ty
21 O-Ring 1
22 Exhaust Value Plate 1
23 Radiator 1
24 Cylinder Cover 1
25 Air Outlet Adaptor 1
26 Spring 1
27 Rubber Hose 1
28 Nozzle 1
29 Screw (M3 x 6) 4
30 Screw (M4 x 8) 1
31 Overload Protector 1
32 Washer 2
33 Connection Wire 2
34 Screw (M3 x 10) 2
35 Screw Rod 2
36 Switch Washer 2
37 Outer Washer 4
38 Screws (M4 x 8) 4
39 Screws (M4 x 38) 4
PARTS LIST AND ASSEMBLY DIAGRAM
1
29
2
3
39
24
23
22
21
20
19
18
25 26
27
28
30
45 6 789
10
8
31
11
12
13
14
32
34
33
35 36 15
16
17
37
38
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 99659 For technical questions, please call 1-800-444-3353. Page 11
LIMITED 1 YEAR 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 one year from the
date of purchase (90 days if used by a professional contractor or if used as rental equip-
ment). This warranty does not apply to damage due directly or indirectly, to misuse,
abuse, negligence or accidents, repairs or alterations outside our facilities, 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 ap-
ply 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 com-
plaint must accompany the merchandise. If our inspection veries the defect, we will ei-
ther 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 re-
paired 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]
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.