Craftsman 919.184191 User Manual
Owner's Manual
I(RRFTSMRNq
Oil Lubricated
Single Stage
Vertical Stationary
AIR COMPRESSOR
Model No.
919.184191
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Repair Parts
• Espahol
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Sears, Roebuck and Co., Hoffman Estates, IL 60170 U.S.A.
Visit our Craftsman website: www.sears.com/craftsman
D30091 Rev. 0 9/26/03
WARRANTY ................................................ 2
SPECIFICATION CHART ..................................... 3
SAFETY GUIDELINES ...................................... 3-8
GLOSSARY ................................................ 9
ACCESSORIES ............................................. 9
DUTY CYCLE .............................................. 9
ASSEMBLY ............................................... 10
INSTALLATION .......................................... 11-13
OPERATION ............................................ 14-16
MAINTENANCE ......................................... 17-19
SERVICE AND ADJUSTMENTS ............................ 20-21
STORAGE ................................................ 22
TROUBLESHOOTING GUIDE .............................. 24-27
REPAIR PARTS ......................................... 28-31
ESPAI_IOL .............................................. 32-57
NOTES .................................................. 58
REPAIR PROTECTION AGREEMENTS ......................... 59
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 ®)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 warrant
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
D30091 2- ENG
-_".J=[a_I; [.'7,21d[1] _I i f'-1:II
Model No. 919.184191
Max. Developed HP 7.0
Running HP 3.2
Bore 2.875"
Stroke 2.0"
Voltage-Single Phase 240
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 60 gallons
Approximate Cut-in Pressure 120
Approximate Cut-out Pressure 150
SCFM @ 40 psig 12.4
SCFM @ 90 psig 10.2
Refer to Glossary for abbreviations.
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
information, we use the symbols below. Please read the manual and pay
attention to these symbols.
_"_F"4'_ Indicat es an
imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
_T_llndicates a
potentially hazardous
situation which, if not avoided,
result in minor or moderate injury.
_lndicates a
potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
_J Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contains chemicals
_'_lUsed without the
safety alert symbol
indicates a potentially hazardous
situation which, if not avoided, may
result in property damaee.
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
MSNA/NIOSR 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 D30091
II_ I_o] ;111P'.'q+IInl[,.'9'.,__1_ &'i __JL_[,._)III,_]LI_+']IIT[_o_+]L_,[,._
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,
,l;1"l'J "-In
WARNING: Risk of explosion or fire
What Could Happen How To Prevent It
It is normal for electrical contacts Always operate the compressor in a well
within the motor and pressure switch to ventilated area free of combustible
spark, materials, gasoline, or solvent vapors.
If electrical sparks from compressor If spraying flammable materials, locate
come into contact with flammable compressor at least 20 feet away from
vapors, they may ignite, causing fire or spray area. An additional length of hose
explosion, 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,
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.
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 wall
ventilated area. Do not operate unit
indoors or in any confined area.
Always remain in attendance with the
)roduct when it is operating.
Always disconnect electrical power by
moving pressure switch lever to the off
}osition and drain tank daily or after
each use.
D30091 4* ENG
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 Could Haopen How To Prevent It
Failure to properly drain condensed Drain tank daily or after each use. If
water from tank, causing rust and tank develops a leak, replace it
thinning of the steel tank. immediately with a new tank or replace
the entire compressor.
Modifications or attempted repairs to Never drill into, weld, or make any
the tank. modifications to the tank or its
Unauthorized modifications to the attachments.
unloader valve, safety valve, or any
other components which control tank
pressure.
Excessive vibration can weaken the The tank is designed to withstand specific
air tank and cause rupture or operating pressures. Never make
explosion 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.
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.
WARNING: Risk from Flying Objects
What Could Happen How To 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
to0_s Oi" accessories,
5* ENG D30091
WARNING: Risk of Electrical Shock
What Could Happen How To Prevent It
Your air compressor is powered by Never operate the compressor outdoors
electricity. Like any other electrically when it is raining or in wet conditions.
powered device, If it is not used Never operate compressor with
properly it may cause electric shock. }retactive covers removed or damaged.
Repairs attempted by unqualified Any electrical wiring or repairs required
personnel can result in serious injury on this product should be performed by
or death by electrocution, authorized service center personnel in
Electrical Grounding: Failure to provide Make certain that the electrical circuit to
adequate grounding to this product which the compressor is connected
could result in serious injury or death provides proper electrical grounding,
from electrocution, correct voltage and adequate fuse
See grounding instructions. _retection.
accordance with national and local
electrical codes.
WARNING: Risk of Breathing
What Could Happen How To 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 tank. Breathing these
contaminants can cause serious injury
or death.
Air obtained directly from the compressor
should never be used to supply air for
human consumption. In order to use air
)roduced 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.
Sprayed matadals such as paint, paint
solvents, paint remover, insecticides,
weed killers, may contain harmful
vapors and poisons.
D30091 6* ENG
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/MSHA
approved respirator designed for use with
your specific application.
:r:_rJ:_;!m
WARNING: Risk of Burns
What Could Happen
Touching exposed metal such as the
compressor head 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.
How To Prevent It
:r:_rJ:_;!=
WARNING: Risk from Moving Parts
What Could Happen How To Prevent It
Moving parts such as the pulley, flywheel, Never operate the compressor with
and belt can cause serious injury if they guards or covers which are damaged or
come into contact with you or your removed.
clothing.
Attempting to operate compressor with Any repairs required on this product
damaged or missing parts or attempting should be performed by authorized
to repair compressor with protective service center personnel.
shrouds removed can expose you to
moving parts and can result in serious
injury.
:r:_rJ:_;!=
WARNING: Risk of Falling
What Could Happen How To Prevent It
A portable compressor can fall from a Always operate compressor in a stable
table, workbench, or roof causing secure position to prevent accidental
damage to the compressor and could movement of the unit. Never operate
result in serious injury or death to the compressor on a roof or other elevated
operator, position. Use additional air hose to
reach high locations.
7÷ ENG D30091
WARNING: Risk of Serious Injury or Property Damage When
Transporting Compressor
(Fire, Inhalation, Damage to VehicleSurfaces)
What Could Happen How To Prevent It
Oil can leak or spill and could result in Always place COMPRESSOR on a
fire or breathing hazard; serious injury or protective mat when transporting to
death can result, oil leaks will damage protect against damage to vehicle from
carpet, paint or other surfaces in leaks. Remove COMPRESSOR from
vehicles or trailers, vehicle immediately upon arrival at your
WARNING: Risk of Unsafe Operation _1=
What Could Happen How To Prevent It
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
destination.
Review and 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.
SAVE THESE INSTRUCTIONS
D30091 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.
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 Lubricators
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.
• Air Hose: 1/4", 5/16", or 3/8" OR
1/2" inside diameter in various
lengths
ml_Tujj_[e,_ q=1
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 D30091
Tools Required for Assembly
1 - 9/16" socket or open end wrench
1 - electric drill
Unpacking
1. Remove allpackaging.
It may be
necessary to brace
or support one side of the air
compressor when removing the
pallet because the air compressor
will have a tendency to tip.
2. Remove and discard the (4)
screws and washers holding the
compressor to the pallet.
3.
With the help of another person
carefully remove air compressor
from pallet and place on a level
surface.
Adding Oil To Pump
Compressors are
shipped without oil.
A small amount of oil may be
present in the pump upon receipt
of the air compressor. This is due
to plant testing and does not mean
the pump contains oil. Do not
attempt to operate this air
compressor without first adding oil
to the crankcase. Serious damage
can result from even limited
operation unless filled with oil and
broken in correctly. Make sure to
closely follow initial start-up
procedures.
I_[_I_ Use air compressor
Viscosity motor oils, like lOW 30,
should not be used in an air
compressor. They leave carbon
deposits on critical components,
thus reducing performance and
compressor life.
oil only. Multi-
NOTE: Use an air compressor oil
such as Sears item number 9-16426
or SAE-20 (API CG/CD) heavy duty
motor oil. Under extreme winter
conditions use SAE-10 weight oil.
To Add Oil
Drain tank to
release air pressure
before removing the oil fill cap or
oil drain plug.
1. Place unit on a level surface.
2. Remove oil fill plug (A) and
slowly add compressor oil until it
is even with the top of the oil fill
hole. NOTE: Do not allow oil to
be lower than 3/8" (6 threads)
from the top at any time. When
filling the crankcase, the oil flows
very slowly into the pump. If the
oil is added too quickly, it will
overflow and appear to be full.
NOTE: Crankcase oil capacity is
approximately 16 fluid ounces.
3. Replace oil fill plug.
D30091 10_ ENG
HOW TO SET UP YOUR
UNIT
Air Compressor Location
• Locate the air compressor in a
clean, dry, and well ventilated
area.
• Locate the air compressor at
least 12" away from the wall or
other obstructions that will
interfere with the flow of air.
• Locate the air compressor as
close to the main power supply
as possible to avoid using long
lengths of electrical wiring.
NOTE: Long lengths of electrical
wiring could cause power loss to
the motor.
• The air filter must be kept clear
of obstructions which could
reduce air flow to the air
compressor.
Anchoring of the Air
Compressor
_ Excessive vibration
tank and cause an explosion. The
compressor must be properly
mounted,
The air compressor MUST be bolted
to a solid, level surface.
Hardware needed:
4 - Concrete anchors (not
supplied)
4 - 3/8" Lag screw to fit
concrete anchors (not
supplied)
4 - 5/8" Washer (found in parts
bag)
- shims (if needed)
1. Place the air compressor on a
solid, level surface.
2. Mark the surface using the holes
in the air compressor feet as a
template.
can weaken the air
3.
Drill holes in the surface for the
concrete anchors. Install
concrete anchors.
4.
Line up holes in surface with
holes in air compressor feet.
5.
Place the (4) washers (supplied)
between the floor and air
compressor feet. If needed, solid
shims may be placed between
the washers and floor to evenly
distribute weight on all four feet.
See next figure.
3/8" Lag
// I Screw
5/8" Washer ¢/ ,j supplied)
(supplied) [__
_ Surface Line
Shim Under
Washer Co_crete Anchor
(not supplied) (not supplied)
6.
Place the (4) 3/8" lag screws
_ _(not
through the air compressor feet,
washers, shims, and into the
anchors.
7.
Torque 3/8" lag screws to 7-10
ft.-Ibs.
Wiring Instructions
I_-J_-;_ Risk of Electrical
Shock. Improper
electrical grounding can result in
electrical shock. The wiring should
be done by a qualified electrician.
A qualified electrician needs to know
the following before wiring:
1. The amperage rating of the
electrical box should be
adequate. Refer to the
Specification Table, in this
manual, for this information.
11_ ENG D30091
2. The supply line should have the
same electrical characteristics
(voltage, cycle, phase) as the
motor. Refer to the motor
nameplate, on side of motor, for
this information.
NOTE: The supply voltage must be
the same as the motor nameplate
voltage plus or minus 10%. Refer to
local codes for correct wire size and
maximum wire run; undersize wire
causes high amp draw and
overheating of the motor.
Risk of Electrical
Shock. Electrical
wiring must be located away from
hot surfaces such as manifold
assembly, compressor outlet tubes,
heads, or cylinders.
GROUNDING INSTRUCTIONS
This product should be connected to
a metallic, permanent wiring system,
or an equipment-grounding terminal
or lead on the product.
Grounding location is clearly
indicated on compressor.
Voltage and Circuit Protection
Refer to the specification chart for the
voltage and minimum branch circuit
requirements.
Risk of Unsafe
Operation. 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.
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.
Air Distribution System
Risk of Bursting.
Plastic or PVC pipe
is not designed for use with
compressed air. Regardless of its
indicated pressure rating, plastic
pipe can burst from air pressure.
Usa only metal pipe for air
distribution lines.
The next figure represents a typical
air distribution system. The following
are tips to remember when setting up
the air compressor's air distribution
system.
Use pipe that is the same size as
the air tank outlet. Piping that is
too small will restrict the flow of
air.
• If piping is over 100 feet long,
use the next larger size.
Bury underground lines below
the frost line and avoid pockets
where condensation can gather
and freeze. Fill lines with air
pressure before covering to
make sure pipe joints are free
from leaks.
D30091 12- ENG
Install a flexible coupling
between the air discharge outlet
and main air distribution line to
allow for vibration.
A separate regulator is
recommended to control the air
pressure. Air pressure from the
air tank is usually too high for
individual air driven tools.
DRAIN
_'g__
LEG
TYPICAL COMPRESSED
AIR DISTRIBUTION SYSTEM
13_ ENG D30091
o%u%_
AIR D_SCHARGE J
VALVE
DRAIN COCK
VALVE
AiR
COMpReSSOR
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.
Tank Pressure Gauge: The air tank
pressure gauge indicates the reserve
air pressure in the air tank.
Globe Valve: Opens and closes air
discharge valve. Turn knob counter-
clockwise to open and clockwise to
close.
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.
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. The pressure switch 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).
D30091 14_ ENG
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 (net 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.
Pressure Release Valve: 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
restar_ 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 after unit
reaches "cut-out" pressure.
Air Intake Filter (not shown) 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".
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
Before First Start-up
Risk of Unsafe
Operation. 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 the
first time and when the check valve
or a complete compressor pump has
been replaced.
Break-in Instructions
1.
Make sure the On/Auto/Off lever
is in the "OFF" position.
2.
Recheck all wiring. Make sure
wires are secure at all terminals
connections. Make sure all
contacts move freely and are not
obstructed.
3. Open the globe valve fully 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 20
minutes. Make sure the globe
valve is open and check tank
pressure gauge for minimal air
pressure build-up in air tank.
6.
Check all air line fittings and
connections/piping for air leaks
by applying a soap solution to
them. Bubbles will indicate a
leak. Correct if necessary. NOTE:
Minor leaks can cause the air
compressor to overwork,
resulting in premature breakdown
or inadequate performance.
7. Check for excessive vibration.
Readjust or shim air compressor
feet, if necessary.
8. After 20 minutes, close the globe
valve.The air tank will fill to "cut-
out" pressure and the motor will
stop.
15_ ENG D30091
Before Each Start-Up:
f. Place On/Auto/Off lever to
"OFF".
2. Close the globe valve.
3. Attach hose and accessories.
NOTE: A regulator MUST be
installed when using accessories
rated at less than 120 PSI.
Risk of Bursting.
Too much air
pressure causes a hazardous risk
of the air tank 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 air tank
pressure to build. Motor will
stop when air tank pressure
reaches "cut-out" pressure.
2. When the air tank pressure
reaches "cut-out" pressure open
the globe valve.
IMPORTANT: When using regulator
and other accessories refer to the
manufacturer's instructions.
D30091 16_ ENG
Customer Responsibilities
Before Dally or Every Every Every Every
each after 8 40 100 160 Yearly
use each hours hours hours hours
use
Check Safety Valve •
Drain Air Tank •
Check 0il •
Change Oil •
Listen for Unusual
Noise and/or •
Vibration
Check Air Filter • (1)
Check Drive Belt •
Condition
Check Motor Pulley/ •
Flywheel alignment
Check Air
compressor pump •
intake and exhaust
valves
Inspect air lines and •
fittings for leaks
1- more frequent in dusty or humid conditions
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.
To ensure efficient operation and
longer life of the air compressor air
compressor, a routine maintenance
schedule should be prepared and
followed. The following routine
maintenance schedule is geared to
an air compressor in a normal
working environment operating on a
daily basis. If necessary, the schedule
should be modified to suit the
conditions under which your
compressor is used. The
modifications will depend upon the
hours of operation and the working
environment. Air compressors in an
extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
NOTE: See "Operation" section for
the location of controls.
17_ ENG D30091
To Check Safety Valve
Risk of Bursting.If
the safety valve
does not work properly, over-
pressurization may occur, causing
air tank rupture or explosion and
possible serious injury.
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 Air tank
1. Set the On/Auto/Off lever to
"OFF" and disconnect electrical
supply.
2. Close the globe valve.
3. Remove the air tool or
accessory.
4. Open the globe valve and allow
the air to slowly bleed from the
air tank until tank pressure is
approximately 20 psi.
5. Close the globe valve.
6. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of air tank.
Ip,,,,i._ ;t=,ii_[d
condense in the air tank. If not
drained, water will corrode and
weaken the air tank causing a risk
of air tank rupture and possible
serious injury.
7. After the water has been drained,
close the drain valve (clockwise).
The air compressor can now be
stored.
Risk of Bursting.
Water will
Oil
I_ Risk of Bursting.
Drain air tank to
release air pressure before removing
the oil fill cap or oil drain plug.
NOTE: Use air compressor oil such
as SAE-20 (API CG/CD) heavy duty
motor oil. Under extreme winter
conditions use SAE-10 weight oil. Oil
capacity is approximately 16 fluid
ounces.
Checking
1. Remove the oil fill plug (A). The
oil level should be even with the
top of the fill hole and no lower
than 6 threads from the top of fill
hole.
2. If needed, slowly add oil until it
reaches the top of fill hole.
Changing
1. Remove the oil fill plug (A).
2. Remove the oil drain plug (B) and
drain oil into a suitable container.
3. Replace the oil drain plug (B) and
tighten securely.
4. Slowly add compressor oil until it
is even with the top of the oil fill
hole. NOTE: When filling the
crankcase, the oil flows very
slowly into the pump. If the oil is
added too quickly, it will overflow
and appear to be full.
5. Replace oil fill plug (A) and
tighten securely.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, then
reinstalled.
D30091 18_ ENG
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