Craftsman 919.152142 User manual

Owner's Manual
JCRRFTSMRN1
Permanently Lubricated
Tank Mounted
AIR COMPRESSOR
Model No.
919.152142
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
•Repair Parts
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
Visit our Craftsman website: www.eears.com/craftsman
D274Z,5 Rev 1 2/6/03

hq;_:] !:1EoJ_,_[_o] _hi _h I_-_
WARRANTY ............................................. 2
SPECIFICATION CHART .................................... 3
SAFETY GUIDELINES .................................... 3-8
GLOSSARY .............................................. 9
ACCESSORIES .......................................... 9
DUTY CYCLE ............................................ 9
INSTALLATION ........................................ f0-11
OPERATION .......................................... f2-14
MAINTENANCE .......................................... 15
SERVICE AND ADJUSTMENTS ........................... f6-17
STORAGE .............................................. 18
TROUBLESHOOTING GUIDE ............................ 19-21
REPAIR PARTS ....................................... 22-25
ESPAI_IOL ............................................ 26-48
NOTES/NOTAS .......................................... 47
HOW TO ORDER REPAIR PARTS ..................... back cover
FULL ONE YEAR WARRANTY AIR COMPRESSOR
If this air compressor fails due to a defect in material or workmanship within
one year from the date of purchase, RETURN IT TO THE NEAREST SEARS
REPAIR CENTER THROUGHOUT THE UNITED STATES AND SEARS WILL
REPAIR IT, FREE OF CHARGE. If purchased from Orchard Supply Hardware,
return to the nearest Orchard Store and Orchard will repair it, free of charge.
If this air compressor is used for commercial or rental purposes, the warranty
will apply for ninety days from the date of purchase.
This warranty gives you specific legal rights and you may have other rights
which vary from state to state.
Sears, Roebuck and Co., Dept. 817WA, Hoffman Estates, IL 60179
D27445 2* ENG

Model NO. 919-152142
Max. Developed HP 2
Bore 47.625
Stroke 31.75
Voltage-Single Phase 120V
Minimum Branch Circuit Requirement 10 amps
Fuse Type Time Delay
Air Tank Capacity 4
Approx. Cut-In 120
Approx. Cut-out 150
SCFM @40 psig 3.7
SCFM @ 90 psig 2.6
[-.'Y.,I_1_ I_'d[€-lJ]Im]=1IqI_I::_'_.,Im]=1_11_1i II[e_]_._
This manual contains information that is important for you to know and understand. This information
relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you
recognize this inforrnation_ we use the symbols below. Please read the manual and pay attention to
these sections.
_lndicates an
imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
_t_lndicates a potentially
hazardous situation
which, if not avoided, could result in
death or serious injury.
_l_'_lndicates a potentially
hazardous situation
which, if not avoided, _ result in
minor or moderate injuw.
_Used without the
safety alert symbol
indicates a potentially hazardous
situation which, if not avoided, may
result in oroDertv damaoe.
IhSl_o]-'IL,1+hd b"Y.'_l_"_'d_[IP,[.._l_o]n/[o _]P,[..+
SAVE THESE INSTRUCTIONS
IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN
SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL
WARNINGS AND OPERATING INSTRUCTIONS BEFORE USING THIS EQUIPMENT.
Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known (to the State of California) to
cause cancer, birth defects or other reproductive harm. Some example of these chemicals are:
lead from lead-based paints
crystalline silica from bricks and cement and other masonry products
arsenic and chromium from chemically*treated lumber
Your risk from these exposures varies, 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, always wear MSHA/NIOSH approved, properly fitting face mask or respirator when using
such tools.
When using air tools, basic safety precautions should always be followed to reduce the risk of of
personal injury.
3* ENG D27445

I1_I_o];]lL"_ +Ill [,,'9'-'I_1_ i'dl I+F,,,_11_o _+]L_,[,,I
Save these instructions
improper operation or maintenance of this product could result in serious injury and
property damage. Read and understand all warnings and operation instructions before
using this equipment.
,I;1"1.,I;I n
WARNING: Risk of explosion or fire
What Could Happen
tt is normal for electrical contacts within
the motor and pressure switch to spark.
If electrical sparks from compressor
come into contact with flammable
vapors, they may ignite, causing fire or
explosion.
Restricting any of the compressor
ventilation openings will cause serious
overheating and could cause fire.
Unattended operation of this product
could result in personal injury or
property damage. To reduce the dsk of
fire, do not allow the compressor to
operate unattended.
How To Prevent It
Always operate the compressor in a well
ventilated area free of combustible
materials, gasoline, or solvent vapors.
If spraying flammable materials, locate
compressor at least 20 feet away from
spray area. An additional length of hose
may be required.
Store flammable matadals in asecure
location away from compressor.
Never place objects against or on top
of compressor. Operate compressor in
an open area at least 12 inches 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
indoors or in any confined area.
Always remain in attendance with the
product when it is operating
Always disconnect electrical power by
moving pressure switch lever to the off
position and drain tank daily or after
each use.
D27445 4* ENG

F_
WARNING: Risk of Bursting
Air Tank: The following conditions could lead to a weakening of the tank, and result
in a violent tank explosion and could cause property damage or serious injury.
2.
3.
What Could Happen
Failure to properly drain
condensed water from tank,
causing rust and thinning of the
steel tank.
How To Prevent It
Drain tank daily or after each use. If
tank develops a leak, replace it
immediately with a new tank or replace
the entire compressor.
Modifications or attempted repairs
to the tank,
Unauthorized modifications to the
unloader valve, safety valve, or any
other components which control
tank pressure.
Excessive vibration can weaken
the air tank and cause rupture or
explosion
Never drill into, weld, or make any
modifications to the tank or its
attachments.
4. The tank is designed to withstand specific
operating pressures. Never make
adjustments or parts substitutions to
alter the factory set operating
prossuros.
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.
For essential control of air pressure, you
must install a pressure regulator and
pressure gauge to the air outlet (if not
equipped) of your compressor. 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.
,l:_'!'J ll=
WARNING: 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 ANSI Z87.1 approved safety
glasses 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 tank
before attempting maintenance, attaching
tools or accessories.
5* ENG D27445

WARNING: Risk of Electrical Shock
WHAT CAN HAPPEN
Your air compressor is powered by
electricity. Like any other electrically
powered device, If it is not used properly
it may cause electric shock.
Repairs attempted by unqualified
personnel can result in serious injury or
death by electrocution,
Electrical Grounding: Failure to provide
adequate grounding to this product
could result in serious injury or death
from electrocution.
See grounding instructions.
HOW TO PREVENT IT
Never operate the compressor outdoors
when it is raining or in wet conditions.
Never operate compressor with
protective covers removed or damaged
Any electrical wiring or repairs required
on this product should be performed by
authorized service center personnel in
accordance with national and local
elect rical codes.
Make certain that the electrical circuit
to which the compressor is connected
provides proper electrical grounding,
correct voltage and adequate fuse
protection,
,I;1"1'.I;1=
WARNING: Risk to Breathing
WHAT CAN HAPPEN
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 tank. Breathing these
contaminants can cause serious injury
or death.
Sprayed materials such as paint, paint
solvents, paint remover, insecticides,
weed killers, may contain harmful vapors
and poisons.
HOW TO PREVENT IT
Air obtained directly from the compressor
should never be used to supply air for
human consumption, In order to use air
produced by this compressor for
breathing, suitable filters and in-line
safety equipment must be properly
installed. In-line filters and safety
equipment used in conjunction with the
compressor must be capable of treating
air to all applicable local and federal
codes prior to human consumption.
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, Use a NtOSH/MSHA
approved respirator designed for use
with your specific application.
D27445 6* ENG

,l:1,1'J "-II
WARNING: Risk of Burns
WHAT CAN HAPPEN
Touching exposed metal such as the
compressor head or outlet tubes, can
result in serious burns,
HOW TO PREVENT IT
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.
,I;1"1'.I;1=
WARNING: Risk from Moving Parts
WHAT CAN HAPPEN
Moving parts such as the pulley, flywheel,
and belt can cause serious injury if they
corn into contact with you or your
clothing.
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.
HOW TO PREVENT IT
Never operate the compressor with
guards or covers which are damaged or
removed.
Any repairs required on this product
should be performed by authorized
service center personnel.
WARNING: Risk or Serious Injury or Property Damage
When Transporting Compressor
(Fire, Inhalation, Damage to Vehicle Surfaces)
WHAT CAN HAPPEN
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.
HOW TO PREVENT IT
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.
7÷ ENG D27445

WARNING: Risk Unsafe Operation
WHAT CAN HAPPEN
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
HOW TO PREVENT IT
Review and understand all instructions
and warnings in this manuel
Become familiar with the operation and
controls of the air compresson
Keep operating area clear of all persons,
3ets, 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
_roduct.
Equip area of operation with a fire
extinguisher.
DO not operate machine with missing,
broken, or unauthorized parts.
D27445 8* ENG

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.
PSlG: 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, ETL, CETL, have
been evaluated by OSHA certified
independent safety laboratories and
meet the applicable Underwriters
Laboratories 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 low 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.
This unit is capable of powering the following accessories. The accessories are
available through the current Power and Hand Tool Catalog or full-line Sears
_O_S.
Accessories
=In Line Filter
= Tire Air Chuck
•Quick Connector Sets
(various sizes)
*Air Pressure Regulators
.Oil Fog Lubricators
*Air Hose:l/4", 3/8" OR 1/2" I.D. in
various lengths
Refer to the selection chart located
on the unit to select the tools this unit
is capable of powering.
ml_Tujnj_[e,_ q:4
Air compressors should be operated
on not more than a 50% duty cycle.
This means an air compressor that
pumps air more than 50% of one
hour is considered misuse, because
the air compressor is undersized for
the required air demand. Maximum
compressor pumping time per hour is
30 minutes.
9- ENG D27445

HOW TO SET UP YOUR
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" 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.
GROUNDING INSTRUCTIONS
_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 (see following
illustrations). The plug must be used
with an outlet that has been installed
and grounded in accordance with all
local codes and ordinances.
1. The cord set and plug with this
unit contains a grounding pin.
This plug MUST be used with a
grounded outlet.
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
illustration.
_ _luj _Grounded
_ _Outlets
Grou_g Pin
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.
I_=J_'_ IM PROPER
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.
D27445 10-ENG

Extension Cords
Using extension cords is not
recommended. The use of extension
cords will cause voltage to drop
resulting in power loss to the motor
and overheating.
Attach extra air hoses at the air outlet
instead of using 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 feet
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.)
Voltage and Circuit Protection
Refer to the Specification Chart for
the voltage and minimum branch
circuit requirements.
Certain air compressors can be
operated on a 15 amp circuit if the
following conditions are met.
1. Voltage supply through branch
circuit is 15 amps.
2. Circuit is not used to supply any
other electrical needs (lights,
appliances, etc.).
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.
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.
11_ ENG D27445

Know Your 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.
Pressure Quick
Switch Connect
Tank
Pressure Gauge
Description of Operation
Become familiar with these controls
before operating the unit.
On/Auto/Off Switch: Turn this switch
ON to provide automatic power to
the pressure switch and OFF to
remove power at the end of each
use.
Pressure Switch: 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: 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).
Outlet Pressure Gauge: 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.
D27445
Regulator
I
Safety Valve
Tank Pressure Gauge: The tank
pressure gauge indicates the reserve
air pressure in the tank.
Regulator: Controls the air pressure
shown on the outlet pressure gauge.
Pull the knob out and turn clockwise
to increase pressure and
counterclockwise to decrease
pressure. When the desired pressure
is reached push knob in to lock in
place.
Drain Valve: The drain valve is
located at the base of the air tank
and is used to drain condensation at
the end of each use.
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.
12-ENG

Air Compressor Pump (not shown):
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.
Check Valve: 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.
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
Before First Start-up
Break-in Procedure
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 On/Auto/Off lever
is in the "OFF" position.
NOTE: Pull coupler back until it clicks
to prevent air from escaping through
the quick connect.
On/Auto/
Off Lever
F_egulator
2. Plug the power cord into the
correct branch circuit receptacle.
(Refer to Voltage and Circuit
Protection paragraph in the
Installation section of this
manual.)
3. Open the drain valve fully
(counterclockwise) to permit air
to escape and prevent air
pressure build up in the air tank
during the break-in period.
4. Move the On/Auto/Off lever to
"ON/AUTO" position. The
compressor will start.
5. Run the compressor for 15
minutes. Make sure the drain
valve is open and there is
minimal air pressure build-up in
tank.
6. After 15 minutes, close the drain
valve (clockwise). The air receiver
will fill to "cut-out" pressure and
the motor will stop.
The compressor is now ready for use.
13_ ENG D27445

Before Each Start-Up:
1. Place On/Auto/Off lever to
"OFF" and close air regulator.
2. Pull regulator knob out, turn
counterclockwise until it stops.
Push knob in to lock in place.
3. Attach hose and accessories.
NOTE: The hose or accessory
will require a quick connect plug
if the air outlet is equipped with a
quick connect socket.
Too much air
_'f_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.
How to Start:
1. Turn the On/Auto/Off lever to
"AUTO" and allow tank pressure
to build. Motor will stop when
tank pressure reaches "cut-out"
pressure.
2. Pull the regulator knob out and
turn clockwise to increase
pressure. When the desired
pressure is reached push knob in
to lock in place. The compressor
is ready for use.
NOTE: Always operate the air
compressor in well-ventilated areas
free of gasoline or other combustible
vapors. If the compressor is being
used to operate a sprayer DO NOT
place near the spray area.
D27445 14_ENG

Customer Responsibilities
Before Dailyor
each after
each
use use
.3heck Safety Valve •
)rain Tank •
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.
To Check Safety Valve
If the safety valve
does not work
properly, over-pressurization may
occur, causing air tank rupture or
an explosion.
1. Before starting compressor, pull
the ring on the safety valve 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 Drain Tank
1. Set the On/Auto/Off lever to
"OFF".
2. Pull the regulator knob out and
turn counterclockwise to set the
outlet pressure to zero.
3. Remove the air tool or
accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
5. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
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.
6. After the water has been drained,
close the drain valve (clockwise).
The air compressor can now be
stored.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, the
reinstalled.
15_ENG D27445

Unit cycles
automatically when
power is on. When doing
Maintenance, you may be exposed
to voltage sources, compressed air
or moving parts. Personal injuries
can occur. Before performing any
Maintenance or repair, unplug the
compressor and bleed off all air
pressure.
ALL MAINTENANCE AND REPAIR
OPERATIONS NOT LISTED MUST
BE PERFORMED BY A TRAINED
SERVICE TECHNICIAN.
_Before servicing:
Unplug or disconnect electrical
supply to the air compressor.
Bleed tank of pressure
Allow the air compressor to
cool.
To Replace or Clean Check
Valve
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
3. Remove the hose by removing
the hose clamp.
NOTE: The hose clamp is not
reusable. You must purchase a new
hose clamp, see the ParLs List
Manual or purchase a standard hose
clamp at a local hardware store.
4. Unscrew the check valve (turn
counter-clockwise) using a
socket wrench.
5. Make sure the valve disc moves
freely inside the check valve and
the spring holds the disc in the
upper, closed position. The
check valve may be cleaned with
a solvent, such as paint and
varnish remover.
6. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
7. Replace hose and new hose
clamp.
8. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
2. Unplug unit.
D27445 16_ENG

To Replace Regulator
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug unit.
3. Using an adjustable wrench
remove the outlet pressure
gauge and quick connect from
the regulator.
4. Remove the regulator.
5. Apply pipe sealant tape to the
nipple on the standpipe.
6. Assemble the regulator and
orient as shown.
NOTE: Arrow indicates flow of air.
Make sure it is pointing in the
direction of air flow.
Regulator
7.
8.
Reapply pipe sealant to outlet
pressure gauge and quick
connect.
Reassemble outlet pressure
gauge and quick connect. Orient
outlet pressure gauge to read
correctly. Tighten connect with
wrench.
17_ ENG D27445

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. Set the On/Auto/Off lever to
"OFF".
3.
4.
5.
6.
Turn the regulator
counterclockwise and set the
outlet pressure to zero.
Remove the air tool or
accessory.
Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psL Release safety valve ring.
Drain water from air tank by
opening drain valve on bottom of
tank.
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.
7. After the water has been drained,
close the drain or drain valve.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, then
reinstalled.
8. Protect the electrical cord and air
hose from damage (such as
being stepped on or run over).
Wind them loosely around the
compressor handle. (If so
equipped)
Store the air compressor in a clean
and dry location.
D27445 18_ ENG

d,(ollJ :] l:_'_"[oIo]l | I_B
Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or
compressed air sources. Personal injury may occur. Prior to attempting
any repairs, unplug the air compressor and bleed off all air tank air
pressure.
PROBLEM
Excessive tank
pressure - safet
valve pops off.
Air leaks at
fittings.
Air leaks at or
inside check
valve
CAUSE
Pressure switch does not
shut off motor when
compressor reaches
"cut-out" pressure.
Pressure switch "cut-out"
too high.
Tube fittings are not tight
enough.
Check valve seat damaged.
Air leaks at Defective pressure switch
pressure switch release valve.
release valve.
Defective air tank.
Air leaks in air
tank or at air
tank welds.
CORRECTION
Move On/Auto/Off lever to
the "OFF" position, if the
unit does not shut off
contact a Trained Service
Technician.
Contact a Trained Service
Technician.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water
solution. Do Not
Overfi_hten.
A defective check valve
results in a constant air leak
at the pressure release valve
when there is pressure in the
tank and the compressor is
shut off. Replace check
valve. Refer to the "To
Replace or Clean Check
Valve" in the "Service and
Adjustment" section.
Contact a Trained Service
Technician.
Air tank must be replaced.
Do not repair the leak.
Do not drill into, weld or
otherwise modify air tank
or it will weaken. The tank
can rupture or explode.
Contact a Trained Service
Technician.
Air leaks Leaking seal.
between head
and valve plate.
19_ENG D27445

PROBLEM CORRECTION
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.
CAUSE
It is normal for "some"
)ressure drop to occur.
Knocking Noise.
Compressor is
not supplying
enough air to
operate
accessories.
Possible defect in safety
valve.
Defective check valve.
Prolonged excessive use of
air.
Compressor is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Restricted air intake filter. Clean or replace air intake
filter. Do not operate the air
compressor with the filter
removed. Refer to the "Air
Filter" paragraph in the
Maintenance" section.
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
)ressure under flow
conditions (while accessory
is being used).
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced.
Remove and clean, or
replace.
Decrease amount of air
usage.
Check the accessory air
requirement. If it is higher
than the SCFM or pressure
supplied by your air
compressor, you need a
larger compressor.
Check and replace if
required.
Removeand clean, or
replace.
Tighten fittings.
Regulator knob Damaged regulator. Replace.
has continuous
air leak.
D27445 20-ENG