Craftsman 919.166442 User manual

Owner's Manuam
I(:RRFTSMnN°I
PermanentJy Lubricated
Tank Mounted
AIR COMPRESSOR
ModeJ No.
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Safety Guidelines
Assembly
Operation
Maintenance
Service and Adjustments
Repair Parts
CAUT|ON: Read the Safety Guidelines
and All instructions CarefulIy Before
Operating.
Sears, Roebuck and Co., Hoffman Estates, IL (}0179 U.S.A.
Visit our Oraftsman website: www, sears,com/craftsman
A13640 R_v.0 11/16/0s

WARRANTY ................................................ 2
SPECiFiCATiON CHART ..................................... 3
SAFETY GUiDELiNES ...................................... 3-8
GLOSSARY ................................................ 9
ACCESSORIES ............................................. 9
DUTY CYCLE .............................................. 9
ASSEMBLY ............................................... 10
iNSTALLATiON ......................................... 10-11
OPERATION ........................................... 12-14
MAINTENANCE ............................................ 15
SERVICE AND ADJUSTMENTS ............................ 16-17
STORAGE ................................................ 18
TROUBLESHOOTING GUIDE ............................. 19-21
REPAIR PARTS ......................................... 22-25
ESPAt_OL .............................................. 26-47
NOTES/NOTAS ............................................ 46
REPAIR PROTECTION AGREEMENTS ......................... 47
HOW TO ORDER REPAIR PARTS ...................... back cover
FULL ONE YEAR WARRANTY AIR COMPRESSOR
If this CRAFTSMAN Air Compressor fails due to a defect in material or
workmanship within one year from the date of purchase, Sears will at
its option repair or replace it free of charge. Contact your nearest Sears
Service Center (1-800-4-MY-HOME <e)to arrange for repair, or return the Air
Compressor to the place of purchase for replacement.
If this Air Compressor is used for commercial or rental purposes, this warranty
applies for only 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
A13640 2= ENG

' " _ O m ± ( )(h,
Model No. 919,166442
Running HP 1.5
Sore 1.875"
Stroke 1.25"
Voltage-Single Phase 120V/60HZ/1 PH
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 15
Approx. Cut-In 120
Approx. Cut-out 150
SCFM @ 40 psig 4.9
SCFM @ 90 psig 3.5
Refer to Giossary for abbreviations.
)))(,
This manual contains information that ls important for you to know and
understand. This information relates to protecting YOUR 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 sections.
Indicates an
imminently hazardous
situation which, if not avoided, will
result in death or serious injur_o
Indicates a potentially
hazardous situation
which, if not avoided, ooumd result in
death or serious ini_
Indicates a potentially
hazardous situation
which, if not avoided, may result in
minor or moderate inu_.
Used without the
safety alert symbol
indicates a potentiaUy hazardous
situatioe which, if not avoided, may
result in _ge=
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 personal injury.
3= ENG A13640

iiii_,....
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.
iiiiii_, b
WARNING: Risk of explosion or fire ,._._
What Could Happen
It is normal for electricaR 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 risk
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
materiams, gasoline, or somvent 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 materials in a secure
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 wan 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.
Amways remain in attendance with the
3roduct when it is operating.
Always disconnect eBectrical power by
moving pressure switch lever to the off
;osition and drain tank daily or after
each use.
A13640 4= ENG

111¸¸ D 11!1
iiiiiiiii_, III!
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.
What Coumd Hal2pen
Failure to properly drain condensed
water from tank, causing rust and
thinning of the steer tank.
Modifications or attempted repairs to
the tank.
Unauthorized modifications to the
unRoader valve, safety valve, or any
other components which controm tank
. pressure.
Excessive vibration can weaken the
air tank and cause rupture or
expBosion
ATTACHMENTS & ACCESSORIESr
Exceeding the pressure rating of
air tooms, spray guns, air operated
accessories, tires, and other inflatables
can cause them to expmode or fly apart,
and could result in serious injury.
Now "re 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.
Never drill into, weld, or make any
modifications to the tank or its
attachments.
The tank is designed to withstand specific
operating pressures. Never make
adjustments or parts substitutions
to aBter the factory set operating
pressures.
For essential control of air pressure,
you must install a pressure regulator
and pressure gauge to the air outmet
{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,
basketbaHs, etc.
WARNING: R{sk from Fly{rig Objects
What Coumd Happen How To Prevent It
The compressed air stream can cause
soft tissue damage to exposed skin
and can propel dirt, chips, Boose
particBes, and small objects at high
speed, resulting in property damage or
personal injury.
Always wear ANSi Z87.1 approved safety
glasses with side shieMs 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 A13640

D m
WARNING: Risk of Electrical Shock I _.._ I
What Oeuld Happen
Your air compressor is powered by
eReetricity, 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 mt
Never operate the compressor outdoors
when it is raining or in wet conditions.
Never operate compressor with
protective covers removed or damaged.
Any emectrical wiring or repairs required
on this product should be performed by
authorized service center personneB
in accordance with national and local
electrical codes.
Make certain that the eBectrical circuit
to which the compressor is connected
provides proper eBectrical grounding,
correct voltage and adequate fuse
protection.
iiiiiiiii_,_
WARNING: R{sk to Breathing
What Could
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.
Now To Prevent It
Air obtained directly from the compressor
should never be used to supply air for
human consumption. In order to use air
%oduced by this compressor for breathing,
suitable filters and in-line safety
equipment must be property installed.
In-line filters and safety equipment
used in conjunction with the compressor
must be capable of treating air to aH
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 NIOSH/MSNA
approved respirator designed for use with
your specific application.
A13640 6- ENG

m k
WARNING: Risk of Burns
What Could Ha en
Touching exposed metal such as the
compressor head or outlet tubes, can
result in serious burns.
How To Prevent mt
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
i11!
WARNING: Risk from Moving Parts
What Could Happen
Moving parts such as the pulley, flywheel,
and belt can cause serious injury if
they come 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
iiiiiii_, _ !
WARNING: Risk of Falling
What CouBd Happen
A portable compressor can fall from
a table, workbench, or roof causing
damage to the compressor and eouBd
result in serious injury or death to the
operator.
How To Prevent mt
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 additionam air hose to
reach high locations.
7- ENG A13640

WARNING: Risk of Serious Injury or Property Damage When _]
Transporting Compressor
(Fire, Inhalation, Damage to Vehicle Surfaces)
What Could 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 piece 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.
_D
WARNING: Risk of Unsafe Operation
What Could Happen ........
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
How To Prevent mt
Review and understand all instructions
and warnings in this manual.
Become familiar with the operation and
controls of the air compressor.
Keep operating area dear of all persons,
pets, and obstacles.
Keep children away from the air
compressor at aH times.
Do not operate the product when
fatigued or under the influence of
alcohol or drugs. Stay alert at aH 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.
SAVE THESE mNSTRUCTmONS
A13640 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 Iaboratorles 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 iscalled "cut-in" pressure.
Cut-Out Pressure: When an air
compressor ls 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 ls called
"cut-out" pressure.
Branch Circuit: C+rcu[t 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
stores.
Accessories
® In Line Filter
+ Tire Air Chuck
+ Quick Connector Sets (various
sizes)
+ Air Pressure Regulators
® Oil Fog Lubncators
® Air Hose: 1/4", 3/8" or 1/2" LD. in
various lengths
Refer to the selection chart located
on the unit to select the tools this unit
is capable of powering.
This air compressor pump is
capable of running continuously.
However, to prolong the life of your
air compressor, it is recommended
that a 50%-75% average duty
cycle be maintained; that is, the air
compressor pump should not run
more than 30-45 minutes in any given
hour.
9+ ENG A13640

,N
1. Remove unit from carton and
discard a!l packaging.
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.
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.
GROUNDING iNSTRUCTIONS
SHOCK, in the event of a short
circuit, grounding reduces the risk
of shock by providing an escape
wire for the e_ectric 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 outleL
3.
4.
Inspect the plug and cord before
each use. Do not use if there are
signs of damage.
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.
SHOCK, IMPROPER GROUNDING
CAN RESULT IN ELECTRICAL
SHOCK,
Do not modify the plug provided, If
it does not fit the avaimable outlet,
a correct outlet should be installed
by a qualified electrician,
Repairs to the cord set or pJug
MUST be made by a qualified
emectrician,
A13640 10- ENG

Extension Cords
Using extension cords is not
recommended. The use of extension
cords wilI 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.
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.
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 electrica! 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.
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 A13640

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 !ocation of various controls and adjustments. Save this manual for future
reference.
Description of Operation
Become familiar with these controls
before operating the unit.
On/Auto/Off Switch: Turn this switch
"On/Auto" 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 Vamve: if the pressure switch
does not shut off the air compressor
at its "cut-out" pressure setting, the
safety valve wil! 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 avaiIable at the outlet side
of the reguIator. This pressure is
controlled by the regulator and is
always Iess than or equa! to the tank
pressure.
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
cIockwise 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 Iocated
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 norma! 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.
A13640 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 Starting
Break-in instructions
_Risk of Unsafe
Operation, Serious
damage may result if the following
break-in instructions are not
cmosemyfollowed.
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: If quick connect is installed,
pull coupler back until it clicks to
prevent air from escaping through the
quick connect.
2. Plug the power cord into the
correct branch circuit receptacle.
(Refer to "Voltage and Circuit
Protection" paragraph in the
Installation section of this
manua!.)
3. Open the drain vane fully
(counter-clockwise) 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.
Before Each Start-Up:
1. Place On/Auto/Off lever to "Off".
2. Pull regulator knob out, turn
counter-clockwise 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.
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,
13-ENG A13640

How to Start:
1. Turn the On/Auto/Off lever
to "On/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 Iock in place. The compressor
is ready for use.
NOTE: Always operate the air
compressor in wetI-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.
A13640 14-ENG

Customer Responsibilities
Before Daily
each or after
each
use use
_heck Safety Valve
:)rain Tank ®@
Risk of Unsafe
Operation, Unit
cycmes automatically when power
is on, When servicing, you may
be exposed to vomtage sources,
compressed air, or moving parts,
Before servicing unit unpmug or
disconnect e{ectricat supply to
the air compressor, bleed tank
of pressure, and allow the air
compressor to cool
NOTE: See Operation section for the
location of controls.
To Check Safety Valve
Risk of Bursting,
If the safety vamve
does not work properly, over-
pressurization may occur, causing
air tank rupture or an explosion.
1. Bdore 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. Turn the regulator knob counter-
clockwise 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.
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 alI air pressure. The valve
can then be removed, cleaned, the
reinstalled.
15- ENG A13640

AH maintenance and repair
operations not misted must be
performed by Trained Service
Technician,
cyc{es automatically when power
is on. When servicing, you may
be exposed to voltage sources,
compressed air, or moving parts.
Before servicing unit unpBug or
disconnect emectricamsuppBy to
the air compressor, bmeedtank
of pressure, and amlow the air
compressor to cool
To Replace or Clean Check
Valve
1. Release a!I air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Set the On/Auto/Off lever to "Off"
and unpiug unit.
3. Loosen the nut on the outlet tube
and move the outlet tube to the
side,
Check
5. Unscrew the check valve (turn
counterclockwise) using a 7/8"
open end wrench. Note the
orientation for reassembly.
6. Using a screwdriver, carefully
push the valve disc up and
down. NOTE: The valve disc
should move freely up and down
on a spring which holds the valve
disc in the closed position; if
not the check valve needs to be
cleaned or replaced.
Screwdriver
In open _,
position ........
nothing is '_
visible.
In closed position
disc is visible.
7. Clean or replace the check
valve. A solvent, such as paint or
varnish remover can be used to
clean the check valve.
8. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
9. Replace the pressure release
tube. Tighten nuts.
10. Replace the outlet tube and
tighten nuts.
11. Pedorm the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
4. Loosen the nut on the outlet tube
and move the outlet tube to the
side.
A13640 16-ENG

To Replace Regulator
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2.
3. Unplug unit.
Using an adjustable wrench or
specified wrench remove the
gauges (7/!6" wrench), quick
connect (13/16" wrench), and
safety valve (9/16" wrench) from
the regulator manifold.
5. Remove pump mounting screws
securing pump (one on each
side).
6. Carefully slide pump from
brackets and out of the way.
7. Using an adjustable wrench or
5/8" wrench remove the regulator
manifold.
4. Remove the hose by removing
the hose clamp. NOTE: The hose
ciamp is not reusable. You must
purchase a new hose clamp, see
the Parts List Manual or purchase
a standard hose clamp at a local
hardware store.
8. Apply pipe sealant to new
regulator manifold and assemble,
tighten with wrench.
9. Reapply pipe sealant to gauges,
quick connect, and safety valve.
10. Reassemble all components in
reverse order of removal. Make
sure to orient gauges to read
correctly and use wrenches to
tighten all components.
Hose Clamp
17-ENG A13640

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" and unplug unit.
3. Turn the regulator
counterclockwise and set the
outlet pressure to zero.
4. Remove the air tool or
accessory.
5. Pu!I ring on safety valve 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 valve on bottom of
tank.
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,
7. After the water has been
drained, close the drain or drain
valve.
NOTE: If drain valve is plugged,
retease all air pressure. The valve
can then be removed, cleaned, and
reinstalled.
8. Protect the electrica! cord and
air hose from damage (such as
being stepped on or run over).
Wind them loosely around
the compressor handle. (If so
equipped)
9. Store the air compressor in a
clean and dry location.
A13640 18-ENG

_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 suppmy to the air compressor, bleed tank of
pressure, and allow the air compressor to cool
CORRECTION
PROBLEM
Excessive tank
pressure - safety
valve pops off,
Air [eaks at
fittings=
Air leaks in air
tank or at air
tank welds=
Air leaks
between head
and valve plate,
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,
Defective air tank.
Leaking sea!=
Possible defect in safety
valve,
Possible defect in safety
valve.
Air leak from
safety valve.
Knocking Noise.
Move On/Auto/Off lever to
the "Off" position, if the
outfit 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
Overtighten,
Air tank must be replaced.
Do not repair the leak.
Do not drill into, weld or
otherwise modify air tank
or it wi[[ weaken, The tank
can rupture or explode,
Contact a Trained Service
Technician,
Operate safety valve
manually by pulling on ring.
if valve still leaks, it should
be replaced.
Operate safety valve
manually by pulling on ring.
if valve still leaks, it shouid
be replaced=
19= ENG A13640

PROBLEM
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.
CAUSE
it is normal for "some"
pressure drop to occur.
Prolonged excessive use of
air.
Compressor is
not supplying
enough air
to operate
accessories.
Regulator knob
has continuous
air leak.
Regulator will
not shut off air
outlet.
Compressor is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Damaged regulator.
Damaged regulator.
CORRECTION
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).
Decrease amount of air
usage.
Check the accessory
air requirement. Hfit is
higher than the SCFM or
pressure supplied by your
air compressor, you need a
larger compressor.
Check and replace if
required.
Remove and clean, or
replace.
Tighten fittings.
Replace.
Replace.
A13640 20-ENG