Bostitch CAP2041ST-OL User manual

CAP2041ST-OL
ELECTRIC 4 GALLON HAND CARRY
AIR COMPRESSOR
COMPRESSEURS D’AIR PORTATIFS
ÉLECTRIQUES DE 4 GALLONS
COMPRESOR DE AIRE PORTÁTIL ELÈCTRICO
DE 4 GALONES
N463983 01/16
OPERATION and MAINTENANCE MANUAL
MANUAL DE OPERACIÓN Y DE MANTENIMIENTO
MANUEL D’INSTRUCTIONS ET D’ENTRETIEN
BEFORE OPERATING THIS TOOL, ALL OPERATORS SHOULD STUDY THIS MANUAL TO
UNDERSTAND AND FOLLOW THE SAFETY WARNINGS AND INSTRUCTIONS. KEEP THESE
INSTRUCTIONS WITH THE TOOL FOR FUTURE REFERENCE. IF YOU HAVE ANY QUESTIONS,
CONTACT YOUR BOSTITCH REPRESENTATIVE OR DISTRIBUTOR.
ANTES DE OPERAR ESTA HERRAMIENTA, TODOS LOS OPERADORES DEBERÁN ESTUDIAR
ESTE MANUAL PARA PODER COMPRENDER Y SEGUIR LAS ADVERTENCIAS SOBRE
SEGURIDAD Y LAS INSTRUCCIONES. MANTENGA ESTAS INSTRUCCIONES CON LA
HERRAMIENTA PARA FUTURA REFERENCIA, SI TIENE ALGUNA DUDA, COMUNÍQUESE CON
SU REPRESENTANTE DE BOSTITCH O CON SU DISTRIBUIDOR.
LIRE ATTENTIVEMENT LE PRÉSENT MANUEL AVANT D’UTILISER L’APPAREIL. PRÉTER
UNE ATTENTION TOUTE PARTICULIÈRE AUX CONSIGNES DE SÉCURITÉ ET AUX
AVERTISSEMENTS. GARDER CE MANUEL AVEC L’OUTIL POUR FUTUR RÉFÉRENCE. SI VOUS
AVEZ DES QUESTIONS, CONTACTEZ VOTRE REPRÉSENTANT OU VOTRE CONCESSIONNAIRE
BOSTITCH.

2 - ENG
SAFETY GUIDELINES - DEFINITIONS
This manual contains information that is important for you to know and
understand.This information relates to protectingYOUR SAFETY and PREVENTING
EQUIPMENT PROBLEMS. To help you recognize this information, we use the
symbols below. Please read the manual and pay attention to these symbols.
DANGER: Indicates an imminently
hazardous situation which, if not avoided,
will result in death or serious injury.
CAUTION: Indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
Indicates a potentially
hazardous situation which, if not avoided,
could result in death or serious injury.
NOTICE: Indicates a practice not
related to personal injury which, if
not avoided, may result in property
damage.
IMPORTANT SAFETY INSTRUCTIONS
This product contains chemicals known to the State of California
to cause cancer, and birth defects or other reproductive harm. Wash hands after
handling.
Some dust contains chemicals known to the State of California to
cause cancer, birth defects or other reproductive harm such as asbestos and lead
in lead based paint.
To reduce the risk of injury, read the instruction manual.
SAVETHESE INSTRUCTIONS
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOWTO PREVENT IT
• It is normal for electrical contacts
within the motor and pressure switch
to spark.
• Always operate the compressor
in a well ventilated area free of
combustible materials, gasoline, or
solvent vapors.
• If electrical sparks from compressor
come into contact with flammable
vapors, they may ignite, causing fire
or explosion.
• If spraying flammable materials,
locate compressor at least 20' (6.1m)
away from spray area. An additional
length of air hose may be required.
• Store flammable materials in a secure
location away from compressor.
• Restricting any of the compressor
ventilation openings will cause
serious overheating and could cause
fire.
• Never place objects against or on top
of compressor.
• Operate compressor in an open area
at least 12" (30.5 cm) away from any
wall or obstruction that would restrict
the flow of fresh air to the ventilation
openings.
• Operate compressor in a clean, dry
well ventilated area. Do not operate
unit in any confined area. Store
indoors.

3 - ENG
• Unattended operation of this product
could result in personal injury or
property damage. To reduce the risk
of fire, do not allow the compressor
to operate unattended.
• Always remain in attendance with the
product when it is operating.
• Always turn off and unplug unit when
not in use.
RISK TO BREATHING (ASPHYXIATION)
WHAT CAN HAPPEN HOWTO PREVENT IT
• The compressed air directly from
your compressor is not safe for
breathing. The air stream may contain
carbon monoxide, toxic vapors, or
solid particles from the air tank.
Breathing these contaminants can
cause serious injury or death.
• Never use air obtained directly from
the compressor to supply air for
human consumption.The compressor
is not equipped with suitable filters
and in-line safety equipment for
human consumption.
• Exposure to chemicals in dust created
by power sanding, sawing, grinding,
drilling, and other construction
activities may be harmful.
• Sprayed materials such as paint, paint
solvents, paint remover, insecticides,
weed killers, may contain harmful
vapors and poisons.
• Work in an area with good cross
ventilation. Read and follow the
safety instructions provided on the
label or safety data sheets for the
materials you are spraying. Always
use certified safety equipment:
NIOSH/OSHA respiratory protection
or properly fitting face mask designed
for use with your specific application.
RISK OF BURSTING
Air Tank: On February 26, 2002, the U.S. Consumer Product Safety Commission
published Release # 02-108 concerning air compressor tank safety:
Air compressor receiver tanks do not have an infinite life. Tank life is dependent
upon several factors, some of which include operating conditions, ambient
conditions, proper installations, field modifications, and the level of maintenance.
The exact effect of these factors on air receiver life is difficult to predict.
If proper maintenance procedures are not followed, internal corrosion to the
inner wall of the air receiver tank can cause the air tank to unexpectedly rupture
allowing pressurized air to suddenly and forcefully escape, posing risk of injury to
consumers.
Your compressor air tank must be removed from service by the end of the year
shown on your tank warning label.
The following conditions could lead to a weakening of the air tank, and result in a
violent air tank explosion:
WHAT CAN HAPPEN HOWTO PREVENT IT
• Failure to properly drain condensed
water from air tank, causing rust and
thinning of the steel air tank.
• Drain air tank daily or after each use.
If air tank develops a leak, replace it
immediately with a new air tank or
replace the entire compressor.
• Modifications or attempted repairs to
the air tank. • Never drill into, weld, or make any modifications to the air tank or its
attachments. Never attempt to
repair a damaged or leaking air tank.
Replace with a new air tank.

4 - ENG
• Unauthorized modifications to the
safety valve or any other components
which control air tank pressure.
• The air tank is designed to withstand
specific operating pressures.
Never make adjustments or parts
substitutions to alter the factory set
operating pressures.
ATTACHMENTS & ACCESSORIES:
• Exceeding the pressure rating of
air tools, spray guns, air operated
accessories, tires, and other
inflatables can cause them to explode
or fly apart, and could result in serious
injury.
• Follow the equipment manufacturers
recommendation and never exceed
the maximum allowable pressure
rating of attachments. Never use
compressor to inflate small low
pressure objects such as children’s
toys, footballs, basketballs, etc.
TIRES:
• Over inflation of tires could result
in serious injury and property
damage.
• Use a tire pressure gauge to check
the tires pressure before each use
and while inflating tires; see the tire
sidewall for the correct tire pressure.
NOTE: Air tanks, compressors and
similar equipment used to inflate tires
can fill small tires very rapidly. Adjust
pressure regulator on air supply to
no more than the rating of the tire
pressure. Add air in small increments
and frequently use the tire gauge to
prevent over inflation.
RISK OF ELECTRICAL SHOCK
WHAT CAN HAPPEN HOWTO PREVENT IT
• Your compressor is powered by
electricity. Like any other electrically
powered device, if it is not used
properly it may cause electric shock.
• Never operate the compressor
outdoors when it is raining or in wet
conditions.
• Never operate compressor with
protective covers removed or
damaged.
• Repairs attempted by unqualified
personnel can result in serious injury
or death by electrocution.
• Any electrical wiring or repairs
required on this product should be
performed by authorized service
center personnel in accordance with
national and local electrical codes.
• Electrical Grounding: Failure to
provide adequate grounding to this
product could result in serious injury
or death from electrocution. Refer to
Grounding Instructions paragraph
in the Installation section.
• Make certain that the electrical circuit
to which the compressor is connected
provides proper electrical grounding,
correct voltage and adequate fuse
protection.

5 - ENG
RISK FROM FLYING OBJECTS
WHAT CAN HAPPEN HOWTO PREVENT IT
• The compressed air stream can
cause soft tissue damage to exposed
skin and can propel dirt, chips, loose
particles, and small objects at high
speed, resulting in property damage
or personal injury.
• Always wear certified safety
equipment: ANSI Z87.1 eye protection
(CAN/CSA Z94.3) with side shields
when using the compressor.
• Never point any nozzle or sprayer
toward any part of the body or at
other people or animals.
• Always turn the compressor off and
bleed pressure from the air hose
and air tank before attempting
maintenance, attaching tools or
accessories.
RISK OF HOT SURFACES
WHAT CAN HAPPEN HOWTO PREVENT IT
• Touching exposed metal such as
the compressor head, engine head,
engine exhaust or outlet tubes, can
result in serious burns.
• Never touch any exposed metal parts
on compressor during or immediately
after operation. Compressor will
remain hot for several minutes after
operation.
• Do not reach around protective
shrouds or attempt maintenance until
unit has been allowed to cool.
RISK FROM MOVING PARTS
WHAT CAN HAPPEN HOWTO PREVENT IT
• Moving parts such as the pulley,
flywheel, and belt can cause serious
injury if they come into contact with
you or your clothing.
• Never operate the compressor with
guards or covers which are damaged
or removed.
• Keep your hair, clothing, and gloves
away from moving parts. Loose
clothes, jewelry, or long hair can be
caught in moving parts.
• Air vents may cover moving parts and
should be avoided as well.
• Attempting to operate compressor
with damaged or missing parts or
attempting to repair compressor with
protective shrouds removed can
expose you to moving parts and can
result in serious injury.
• Any repairs required on this product
should be performed by authorized
service center personnel.

6 - ENG
RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN HOWTO PREVENT IT
• Unsafe operation of your compressor
could lead to serious injury or death
to you or others.
• Reviewand understand all instructions
and warnings in this manual.
• Become familiar with the operation
and controls of the air compressor.
• Keep operating area clear of all
persons, pets, and obstacles.
• Keep children away from the air
compressor at all times.
• Do not operate the product when
fatigued or under the influence of
alcohol or drugs. Stay alert at all
times.
• Never defeat the safety features of
this product.
• Equip area of operation with a fire
extinguisher.
• Do not operate machine with missing,
broken, or unauthorized parts.
• Never stand on the compressor.
RISK OF FALLING
WHAT CAN HAPPEN HOWTO PREVENT IT
• A portable compressor can fall from
a table, workbench, or roof causing
damage to the compressor and could
result in serious injury or death to the
operator.
• Always operate compressor in a
stable secure position to prevent
accidental movement of the unit.
Never operate compressor on a
roof or other elevated position. Use
additional air hose to reach high
locations.
RISK FROM NOISE
WHAT CAN HAPPEN HOWTO PREVENT IT
• Under some conditions and duration
of use, noise from this product may
contribute to hearing loss.
• Always wear proper hearing
protection during use.
RISK OF INJURY FROM LIFTING
WHAT CAN HAPPEN HOWTO PREVENT IT
• Serious injury can result from
attempting to lift too heavy an object. • The compressor is too heavy to be lifted by one person. Obtain
assistance from others before lifting.

7 - ENG
RISK OF SERIOUS INJURY OR PROPERTY DAMAGE
WHEN TRANSPORTING COMPRESSOR
WHAT CAN HAPPEN HOWTO PREVENT IT
• Oil can leak or spill and could result
in fire or breathing hazard; serious
injury or death can result. Oil leaks
will damage carpet, paint or other
surfaces in vehicles or trailers.
• Always place compressor on a
protective mat when transporting to
protect against damage to vehicle
from leaks. Remove compressor
from vehicle immediately upon arrival
at your destination.
HOT SURFACES
CHECK
VALVE
SAFETY VALVE
PUMP CYLNDER
AND HEAD
OUTLET TUBE
SAVETHESE INSTRUCTIONS
FOR FUTURE USE
SPECIFICATIONS
Model No. CAP2041ST-OL
Voltage/Amps/Hz-Single Phase 120/14A/60
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 4 Gallon (15.1 liters)
Pump Oil Capacity 10.6 oz. (313.5 mL)
Approximate Cut-in Pressure 105 psig
Approximate Cut-out Pressure 135 psig
SCFM @ 40 psig 4.9 *
SCFM @ 90 psig 3.8 *
Weight 58.4 lbs (26.5 kg)
*Tested per ISO 1217
Refer to Glossary for abbreviations.

8 - ENG
GLOSSARY
Become familiar with these terms before operating the unit.
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of measure of air delivery.
PSIG: Pounds per square inch gauge; a unit of measure of pressure.
Code Certification: Products that bear one or more of the following marks: UL®,
CUL, CULUS, ETL®, CETL, CETLUS, have been evaluated by OSHA certified
independent safety labor0atories and meet the applicable Standards for Safety.
Cut-In Pressure: While the motor is off, air tank pressure drops as you continue
to use your accessory. When the tank pressure drops to a certain lower level the
motor will restart automatically. The low pressure at which the motor automatically
restarts is called "cut-in" pressure.
Cut-Out Pressure: When an air compressor is turned on and begins to run, air
pressure in the air tank begins to build. It builds to a certain high pressure before the
motor automatically shuts off, protecting your air tank from pressure higher than its
capacity.The high pressure at which the motor shuts off is called "cut-out" pressure.
Branch Circuit: Circuit carrying electricity from electrical panel to outlet.
DUTY CYCLE
Duty Cycle: For proper operation of your air compressor, it is recommended that a
50% duty cycle be maintained; that is, the air compressor should not run more than
5 minutes in any 10 minute period.
ASSEMBLY
UNPACKING
Remove unit from carton and discard all packaging.
CHECK PUMP OIL (FIG 1)
The compressor was shipped with oil in the crankcase. A shipping
plug is used to prevent oil from leaking during shipment. Do not attempt to operate
this air compressor without first checking the oil level. Serious damage can result
from even limited operation unless filled with oil and broken in correctly. Closely
follow Initial Set-up under Operation.
Risk of property
Q
FIG. 1
T
damage. Use SAE 40, non-detergent
air compressor oil only. Multi-weight
automotive engine oils like 10W30
should not be used in air
compressors. They leave carbon
deposits on critical components,
thus reducing performance and
compressor life.
1. Place unit on a level surface.
2. Remove the shipping plug (T)
and insert the dipstick (Q).
3. Check oil level. See Pump Oil-
Checking paragraph under Maintenance section for instructions.

9 - ENG
ASSEMBLE AIR INTAKE FILTER (FIG. 2)
CAUTION: Risk of unsafe operation. Do not operate without air intake filter.
Remove shipping plug (U) from air intake inlet and assemble air intake filter(P).
Tighten until snug.
FIG. 2
P
U
INSTALLATION
HOWTO SET UPYOUR UNIT
LOCATION OF THE AIR COMPRESSOR
• Locate the air compressor in a clean, dry and well ventilated area.
• The air compressor should be located at least 12" (30.5 cm) away from the wall
or other obstructions that will interfere with the flow of air.
• The air compressor pump and shroud are designed to allow for proper cooling.
The ventilation openings on the compressor are necessary to maintain proper
operating temperature. Do not place rags or other containers on or near these
openings.
• Keep the compressor away from the areas that have dirt and/or volatile fumes
in the atmosphere. These impurities may clog the air intake filter and valves,
causing inefficient operation.
• Place the air compressor on a flat surface resting on the rubber feet.
NOISE CONSIDERATIONS
Consult local officials for information regarding acceptable noise levels in your area.
To reduce excessive noise, use vibration mounts or silencers, relocate the unit or
construct total enclosures or baffle walls. Contact a Trained Service Technician for
assistance.
ELECTRICAL (FIG. 4)
Refer to all safety instructions before using unit. Observe extension cord safety
instructions if necessary. Always move the Auto/Off switch (D) to the "Off" position
before removing the plug from the outlet.
TRANSPORTING
When transporting the compressor in a vehicle, trailer, etc., ensure that the tank
is drained and the unit is secured. Use care when driving to avoid tipping the unit
over in the vehicle. Damage can occur to the compressor or surrounding items if
the compressor is tipped.
MOVING
When moving the compressor, grasp the handle and carry the compressor as close
to the body as possible.
Risk of unsafe operation. Ensure proper footing and use caution
when carrying compressor to avoid a loss of balance.

10 - ENG
GROUNDING INSTRUCTIONS (FIG. 3)
RISK OF ELECTRICAL SHOCK. In the event of a short circuit,
grounding reduces the risk of shock by providing an escape wire for the
electric current.This air compressor must be properly grounded.
The portable air compressor is equipped with a cord having a grounding wire with
an appropriate grounding plug (A).
1. The cord set and plug (A) with this unit contains
C
A
FIG. 3
B
a grounding pin (B). This plug MUST be used
with a grounded outlet (C).
IMPORTANT: The outlet being used must be
installed and grounded in accordance with all local
codes and ordinances.
2. Make sure the outlet being used has the
same configuration as the grounded plug. DO
NOT USE AN ADAPTER. See figure 3.
3. Inspect the plug and cord before each use.
Do not use if there are signs of damage.
4. If these grounding instructions are not completely understood, or if in doubt as
to whether the compressor is properly grounded, have the installation checked
by a qualified electrician.
RISK OF ELECTRICAL SHOCK. IMPROPER GROUNDING CAN
RESULT IN ELECTRICAL SHOCK.
Do not modify the plug provided. If it does not fit the available outlet, a correct
outlet should be installed by a qualified electrician.
Repairs to the cord set or plug MUST be made by a qualified electrician.
EXTENSION CORDS
If an extension cord must be used, be sure it is:
• a 3-wire extension cord that has a 3-blade grounding plug, and a 3-slot
receptacle that will accept the plug on the product
• in good condition
• no longer than 50' (15.2 m)
• 12 gauge (AWG) or larger. (Wire size increases as gauge number, decreases.
10AWG and 8 AWG may also be used. DO NOT USE 14 OR 16 AWG.)
Risk of Property Damage. The use of an undersized extension cord
will cause voltage to drop resulting in power loss to the motor and overheating.
Instead of using an extension cord, increase the working reach of the air hose by
attaching another length of hose to its end. Attach additional lengths of hose as
needed.
VOLTAGE AND CIRCUIT PROTECTION
Refer to the Specifications for the voltage and minimum branch circuit requirements.
CAUTION: Risk of Overheating. Certain air compressors can be operated on a 15
amp circuit if the following conditions are met.
1. Voltage supply to circuit must comply with the National Electrical Code.
2. Circuit is not used to supply any other electrical needs.
3. Extension cords comply with specifications.
4. Circuit is equipped with a 15 amp circuit breaker or 15 amp time delay fuse.
NOTE: If compressor is connected to a circuit protected by fuses, use only
time delay fuses. Time delay fuses should be marked "D" in Canada and "T" in
the US.

11 - ENG
If any of the above conditions cannot be met, or if operation of the compressor
repeatedly causes interruption of the power, it may be necessary to operate it from
a 20 amp circuit. It is not necessary to change the cord set.
COMPATIBILITY
Air tools and accessories that are run off the compressor must be compatible
with petroleum-based products. If you suspect that a material is not compatible
with petroleum products, an air line filter for removal of moisture and oil vapor in
compressed air is required.
NOTE: Always use an air line filter to remove moisture and oil vapor when spraying
paint.
OPERATION
KNOWYOUR AIR COMPRESSOR
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING
YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with the
location of various controls and adjustments. Save this manual for future reference.
DESCRIPTION OF OPERATION (FIG. 4)
FIG. 4
P
N
G
H
D
E
K
Q
R
F
J
L
M
Become familiar with these controls before operating the unit.
Auto (I)/Off (O) Switch (D): Place this switch in the Auto (I) position to provide
automatic power to the pressure switch and Off (O) to remove power at the end
of each use.
Pressure Switch (E):The pressure switch automatically starts the motor when the
air tank pressure drops below the factory set "cut-in" pressure. It stops the motor
when the air tank pressure reaches the factory set "cut-out" pressure.
Safety Valve (F): If the pressure switch does not shut off the air compressor at
its "cut-out" pressure setting, the safety valve will protect against high pressure by
"popping out" at its factory set pressure (slightly higher than the pressure switch
"cut-out" setting).
Tank Pressure Gauge (G): The tank pressure gauge indicates the reserve air
pressure in the tank.

12 - ENG
Regulated Pressure Gauge (H): The outlet pressure gauge indicates the air
pressure available at the outlet side of the regulator. This pressure is controlled by
the regulator and is always less than or equal to the tank pressure.
Cooling System (not shown): This compressor contains an advanced design
cooling system. At the heart of this cooling system is an engineered fan. It is
perfectly normal for this fan to blow air through the vent holes in large amounts.You
know that the cooling system is working when air is being expelled.
Air Compressor Pump (J): Compresses air into the air tank. Working air is not
available until the compressor has raised the air tank pressure above that required
at the air outlet.
DrainValves (K): A drain valve is located at the base of the each air tank and is used
to drain condensation at the end of each use.
Check Valve (L): When the air compressor is operating, the check valve is "open",
allowing compressed air to enter the air tank. When the air compressor reaches
"cut-out" pressure, the check valve "closes", allowing air pressure to remain inside
the air tank.
Motor Overload Protector (not shown): The motor has a thermal overload
protector. If the motor overheats for any reason, the overload protector will shut off
the motor. The motor must be allowed to cool down before restarting. To restart:
1. Set the Auto/Off lever to "Off" and unplug unit.
2. Allow the motor to cool.
3. Plug the power cord into the correct branch circuit receptacle.
4. Set the Auto/Off lever to "Auto" position.
Universal Quick Connect Body (M):The universal quick connect body accepts the
three most popular styles of quick connect plugs: Industrial, automotive, and ARO.
One hand push-to-connect operation makes connections simple and easy.
Regulator (N): Controls the air pressure shown on the outlet pressure gauge. Pull
the regulator knob out to unlock and turn the knob clockwise to increase pressure
and counterclockwise to decrease pressure. When the desired pressure is reached
push the knob in to lock the regulator in place.
Air Intake Filter (P): This filter is designed to clean air coming into the pump. This
filter must always be clean and ventilation openings free from obstructions. See
Maintenance.
Dipstick (Q) (not shown): Indicates the amount of oil in the pump, MAX indicates
full and MIN indicates oil needs to be added. See Pump Oil paragraphs in the
Maintenance section for instructions.
Oil Drain Plug (R) (not shown): See Pump Oil paragraphs in the Maintenance
section for instructions on how to change the pump oil.
Pressure Release Valve (not shown): The pressure release valve located on the
side of the pressure switch, is designed to automatically release compressed air
from the compressor head and the outlet tube when the air compressor reaches
"cut-out" pressure or is shut off. The pressure release valve allows the motor to
restart freely. When the motor stops running, air will be heard escaping from this
valve for a few seconds. No air should be heard leaking when the motor is running,
or continuous leaking after unit reaches "cut-out" pressure.
HOWTO USEYOUR UNIT (FIG. 4)
HOW TO STOP
1. Set the Auto/Off switch (D) to "Off".
2. Unplug unit when not in use.
BEFORE STARTING
Do not operate this unit until you read this instruction manual
for safety, operation and maintenance instructions.

13 - ENG
INITIAL SET-UP (BREAK-IN PROCEDURE)
Risk of property damage. Serious damage may result if the
following break-in instructions are not closely followed.
This procedure is required before the air compressor is put into service and when
the check valve or a complete compressor pump has been replaced.
1. Make sure the Auto/Off switch (D) is in the "Off" position.
2. Check oil level in pump. See Pump Oil-Checking paragraph in the Maintenance
section for instructions.
3. Plug the power cord into the correct branch circuit receptacle. (Refer to Voltage
and Circuit Protection paragraph in the Installation section of this manual.)
4. Open the drain valves (K) (counterclockwise) fully to permit air to escape and
prevent air pressure build up in the air tank during the break-in period.
5. Move the Auto/Off switch to "Auto" position. The compressor will start.
6. Run the compressor for 20 minutes. Make sure the drain valve is open and
there is minimal air pressure build-up in tank.
7. After 20 minutes, close the drain valves by turning clockwise. The air receiver
will fill to "cut-out" pressure and the motor will stop.
The compressor is now ready for use.
BEFORE EACH START-UP
1. Set the Auto/Off switch (D) to "Off".
2. Ensure air tank is drained, see To Drain Tank under Maintenance section for
instructions.
3. Ensure the drain valve (K) is closed.
4. Ensure safety valve (F) is functioning properly, see To Check Safety Valve
under Maintenance section for instructions.
5. Check pump oil level, see Pump Oil-Checking under Maintenance section for
instructions.
Risk of property damage. Do not operate without oil or with
inadequate oil. BOSTITCH is not responsible for compressor failure caused by
inadequate oil.
6. Plug the power cord into the correct branch circuit receptacle. (Refer to Voltage
and Circuit Protection paragraph in the Installation section of this manual.)
7. Pull the regulator knob (N) out and turn counterclockwise to decrease the outlet
pressure to zero. When the desired pressure is reached push the knob in to
lock the regulator in place.
8. Attach hose and accessories.
Risk of unsafe operation. Firmly grasp air hose in hand when
installing or disconnecting to prevent hose whip.
Risk of unsafe operation. Do not use damaged or worn
accessories.
NOTE: The hose or accessory will require a quick connect plug if the air outlet is
equipped with a quick connect body (M).
9. Ensure all covers and labels are in place, legible (for labels) and securely
mounted. Do not use compressor until all items have been verified.
Risk of Bursting. Too much air pressure causes a hazardous
risk of bursting. Check the manufacturer’s maximum pressure rating for air
tools and accessories. The regulator outlet pressure must never exceed the
maximum pressure rating.

14 - ENG
Risk of property damage. Compressed air from the unit may contain
water condensation and oil mist. Do not spray unfiltered air at an item that could be
damaged by moisture. Some air tools and accessories may require filtered air. Read
the instructions for the air tools and accessories.
HOW TO START
1. Set the Auto/Off switch (D) to "Auto" and allow tank pressure to build. Motor
will stop when tank pressure reaches "cut-out" pressure.
2. Pull the regulator knob (N) out to unlock and turn the knob clockwise to
increase pressure and stop when desired pressure is reached. When the
desired pressure is reached push the knob in to lock the regulator in place.
Risk of unsafe operation. If any unusual noise or vibration is
noticed, stop the compressor immediately and have it checked by a trained
service technician.
The compressor is ready for use.
MAINTENANCE
CUSTOMER RESPONSIBILITIES
Procedure Daily Weekly 1 year or
200 Hours See tank warning
label
Check safety valve X
Drain air tank X
Check pump oil level X
Change pump oil X (2, 3)
Oil leak inspection X
Check for unusual noise/vibration X
Check for air leaks X (1)
Clean compressor exterior X
Remove tank from service X (4)
(1) To check for air leaks apply a solution of soapy water around joints. While
compressor is pumping to pressure and after pressure cuts out, look for air
bubbles to form.
(2) The pump oil must be changed after the first 20 hours of operation. Thereafter,
change oil every 200 hours of operation or once a year, whichever comes first.
(3) Perform more frequent in dusty or humid conditions
(4) For more information, call our Customer Care Center at 1-800-556-6696
Risk of unsafe operation. Unit cycles automatically when
power is on. When performing maintenance, you may be exposed to voltage
sources, compressed air, or moving parts. Personal injuries can occur. Before
performing any maintenance or repair, disconnect power source from the
compressor and bleed off all air pressure.
NOTE: See Operation section for the location of controls.

15 - ENG
TO CHECK SAFETYVALVE (FIG. 5)
Risk of Bursting. If the safety valve does not
F
FIG. 5
work properly, over-pressurization may occur, causing air
tank rupture or an explosion.
Risk from Flying Objects.Always wear certified
safety equipment: ANSI Z87.1 eye protection (CAN/CSA
Z94.3) with side shields.
Hot surfaces. Risk of burn. Outlet tube, pump
head, and surrounding parts are very hot, do not touch (see the
Hot Surfaces identified in Important Safety Instructions). Allow compressor to
cool prior to servicing.
Before starting compressor, pull the ring on the safety valve (F) to make sure that
the safety valve operates freely. If the valve is stuck or does not operate smoothly,
it must be replaced with the same type of valve.
TO DRAINTANK (FIG. 5, 6)
Risk of Unsafe Operation. Air tanks contain high pressure air.
Keep face and other body parts away from outlet of drain. Use ANSI Z87.1 eye
protection (CAN/CSA Z94.3) when draining as debris can be kicked up into
face.
Risk from noise. Always wear proper hearing protection during
use. Under some conditions and duration of use, noise from this product may
contribute to hearing loss.
NOTE: All compressed air systems generate condensate that accumulates in any drain
point (e.g., tanks, filter, outlet tubes, dryers). This condensate contains lubricating oil
and/or substances which may be regulated and must be disposed of in accordance
with local, state, and federal laws and regulations.
Risk of Bursting. Water will condense in the air tank. If not
drained, water will corrode and weaken the air tank causing a risk of air tank
rupture.
Risk of Property Damage. Drain water from air tank may contain oil
and rust which can cause stains.
1. Set the Auto/Off switch (D) to "Off".
2. Pull the regulator knob (N) out and turn counterclockwise to decrease the outlet
pressure to zero. When the desired pressure is reached push the knob in to
lock the regulator in place.
3. Remove the air tool or accessory.
4. Place a suitable container under the drain valves (K) to catch discharge.
5. Pull ring on safety valve (F, Fig. 5) allowing air to bleed from the tank until tank
pressure is approximately 20 psi. Release safety valve ring.
6. Drain water from air tank by opening drain valves (K) on bottom of tanks.
7. After the water has been drained, close the drain valves. The air compressor
can now be stored.
NOTE: If drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, then reinstalled.

16 - ENG
FIG. 6
K
DFIG. 7
Q
R
N
PUMP OIL (FIG. 7, 8)
Drain tank to release air pressure before removing the dipstick
or oil drain plug.
Hot surfaces. Risk of burn. Outlet tube, pump head, and surrounding
parts are very hot, do not touch (see the Hot Surfaces identified in Important
Safety Instructions). Allow compressor to cool prior to servicing.
Risk of property damage. Use SAE 40, non-detergent air compressor
oil only. Multi-weight automotive engine oils like 10W30 should not be used in air
compressors. They leave carbon deposits on critical components, thus reducing
performance and compressor life.
NOTE: Crankcase oil capacity is approximately 10.6 fluid ounces (313.5 mL).
CHECKING
1. Set the Auto/Off lever to "Off".
2. Place unit on a flat level surface.
3. Remove dipstick (Q) and check oil on dipstick for visual signs of contaminants
(water, dirt, etc).
Make sure air vent (V) in dipstick is free from debris. If air vent
is blocked pressure can build in crankcase causing damage to air compressor
and possible personal injury.
4. Wipe oil from dipstick.
5. Replace dipstick and allow oil to collect on dipstick.
6. Remove dipstick and check oil level on dipstick. The
MAX mark on the dipstick indicates full and MIN mark
indicates oil is needed. If oil level is below the MIN
mark, slowly add oil until it reaches the MAX (full) mark
on the dipstick.
7. Replace dipstick (Q).
CHANGING
1. Set the Auto/Off lever to "Off".
2. Allow the unit to cool.
3. Remove air compressor plug from outlet.
4. Remove the dipstick (Q).
5. Remove the oil drain plug (R) and drain oil into a
suitable container. (Tilting the compressor towards the
drain plug will assist in draining.)
FIG. 8
Q
VV

17 - ENG
6. Replace oil drain plug (R).
7. Slowly fill crankcase with SAE 40, non-detergent air compressor oil. Crankcase
capacity is 10.6 fluid ounces (313.5mL). Oil level should be to the MAX mark
on the dipstick.
NOTE: If the oil is added too quickly, it will overflow and appear to be full.
8. Replace dipstick.
STORAGE
Before you store the air compressor, make sure you do the following:
1. Review the Maintenance section on the preceding pages and perform
scheduled maintenance as necessary.
2. Drain water from air tank. See To Drain Tank under Maintenance section for
instructions.
Water will condense in the air tank. If not drained, water will
corrode and weaken the air tank causing a risk of air tank rupture.
3. Protect the electrical cord and air hose from damage (such as being stepped
on or run over). Wind air hose loosely around the compressor handle.
4. Store the air compressor in a clean and dry location.
ACCESSORIES
The use of any other accessory not recommended for use with
this tool could be hazardous. Use only accessories rated equal to or higher
than the rating of the air compressor.
Recommended accessories for use with your tool are available for purchase from
your local dealer or authorized service center. If you need assistance in locating
any accessory for your tool, please contact BOSTITCH Fastening Systems 701 E.
Joppa Road Towson, Maryland 21286, call 1-800-556-6696.
SERVICE INFORMATION
Please have the following information available for all service calls:
ModelNumber_____________________SerialNumber_______________________________
Date and Place of Purchase ____________________________________________________
REPAIRS
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment
should be performed by a BOSTITCH factory service center, a BOSTITCH
authorized service center or other qualified service personnel. Always use identical
replacement parts.
TROUBLESHOOTING
Risk of Unsafe Operation. Unit cycles automatically when power
is on. When servicing, you may be exposed to voltage sources, compressed
air, or moving parts. Before servicing unit unplug or disconnect electrical
supply to the air compressor, bleed tank of pressure, and allow the air
compressor to cool.

18 - ENG
PROBLEM CAUSE CORRECTION
Excessive tank
pressure - safety
valve pops off.
Pressure switch
does not shut
off motor when
compressor reaches
"cut-out" pressure.
Move Auto/Off lever to the
"Off" position, if the outfit does
not shut off have checked by a
Trained Service Technician.
Pressure switch
"cut-out" too high. Have checked by a Trained Service Technician.
Air leaks at fittings. Tube fittings are
not tight enough. Tighten fittings where air can be heard escaping. Check
fittings with soapy water
solution. Do Not Overtighten.
Air leaks in air tank
or at air tank welds. Defective air tank. Air tank must be replaced.
Do not repair the leak.
Risk bursting.
Do not drill into, weld or
otherwise modify air tank
or it will weaken.The tank
can rupture or explode.
Air leaks between
head and valve plate. Leaking seal. Have checked by a Trained Service Technician.
Air leak from
safety valve. Possible defect in safety valve. Operate safety valve manually by pulling on ring. If valve still
leaks, it should be replaced.
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is used.
It is normal for "some"
pressure drop to occur. If there is an excessive amount of pressure drop when the
accessory is used, adjust
the regulator following the
instructions in the Description
of Operation paragraph in
the Operation Section.
NOTE: Adjust the regulated
pressure under flow conditions
(while accessory is being used).
Compressor is not
supplying enough
air to operate
accessories.
Prolonged excessive
use of air. Decrease amount of air usage.
Compressor is not
large enough for
air requirement.
Check the accessory air
requirement. If it is higher than
the SCFM or pressure supplied
by your air compressor, you
need a larger compressor.
Hole in hose. Check and replace if required.
Check valve restricted. Have checked by a Trained
Service Technician.
Air leaks. Tighten fittings.
Restricted air
intake filter. Replace air intake filter.
CAUTION: Risk of unsafe
operation. Do not operate
without air intake filter.
Regulator knob has
continuous air leak. Damaged regulator. Have checked by a Trained Service Technician.
Regulator will not
shut off air outlet. Damaged regulator. Have checked by a Trained Service Technician.

19 - ENG
PROBLEM CAUSE CORRECTION
Motor will not run. Fuse blown, circuit
breaker tripped. Check fuse box for blown fuse and replace as necessary. Reset
circuit breaker. Do not use a fuse
or circuit breaker with higher
rating than that specified for
your particular branch circuit.
Check for proper fuse. You
should use a time delay fuse.
Check for low voltage problem.
Check the extension cord.
Disconnect the other electrical
appliances from circuit or
operate the compressor on
its own branch circuit.
Extension cord is
wrong length or gauge. Check the extension cord.
Loose electrical
connections. Check wiring connection under pressure switch cover.
Possible defective motor
or starting capacitor. Have checked by a Trained Service Technician.
Motor overload
protection switch
has tripped.
Refer to Motor Overload
Protection under Operation. If
motor overload protection trips
frequently, have checked by a
Trained Service Technician.
Tank pressure exceeds
pressure switch
"cut-in" pressure.
Motor will start automatically
when tank pressure drops
below "cut-in" pressure
of pressure switch.
Check valve stuck open. Have checked by aTrained
Service Technician.
Motor will not run. Paint spray on internal
motor parts. Have checked by aTrained Service Technician. Do not operate the
compressor in the paint spray area.
See flammable vapor warning.
Pressure release valve
on pressure switch
has not unloaded
head pressure.
Bleed the line by pushing the Auto/
Off switch on the pressure switch
to the "Off" position; if the valve
does not open, replace switch.
Knocking Noise. Possible defect in
safety valve. Operate safety valve manually by pulling on ring. If valve still
leaks, it should be replaced.
Defective check valve. Have checked by aTrained
Service Technician.
Carbon build-
up in pump. Have checked by aTrained Service Technician.
Squealing sound. Compressor pump
has no oil. See Pump Oil-Checking paragraph in the
Maintenance section.
Air vent on dipstick
is blocked. Air vent clogged with debris. Clean air vent or replace dipstick.

20 - ENG
FULL ONE YEAR WARRANTY
BOSTITCH heavy duty industrial tools are warranted for one year from date of
purchase. We will repair, without charge, any defects due to faulty materials or
workmanship. For warranty repair information, call 1-800-556-6696. This warranty
does not apply to accessories or damage caused where repairs have been made or
attempted by others. This warranty gives you specific legal rights and you may have
other rights which vary in certain states or provinces.
LATIN AMERICA: This warranty does not apply to products sold in Latin America.
For products sold in Latin America, see country specific warranty information
contained either in the packaging, call the local company or see website for
warranty information.
FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible
or are missing, call 1-800-556-6696 for a free replacement.