Westward 4YD76A Service manual

Westward Operating Instructions and Parts Manual Model 4YD76A
Portable Air Compressor
Please read and save these instructions. Read through this owner’s
manual carefully before using product. Protect yourself and others by
observing all safety information, warnings, and cautions. Failure to
comply with instructions could result in personal injury and/or damage to
product or property. Please retain instructions for future reference.
DEV003
D27552
Printed in U.S.A.
7/31/03 r1
Unpacking
Grasp handle and lift the air
compressor out of the carton.
Remove all packaging from air
compressor and discard. Save
all literature.
After unpacking unit, inspect
carefully for any damage that
may have occurred during
transit. Check for loose,
missing, or damaged parts.
Shipping damage claim must
be filed with carrier.
Description
Oil free air compressor for use in the home with a 50/50 duty cycle. The 4
gallon air compressor is designed for durability and low maintenance. Includes
check valve, pressure switch, safety valve, and gauges.
Specifications
Length
17.56”
Width
17.56'
Height
17.50”
Weight
34 lbs.
Dimensions
Model
4YD76A
Max.
Pressure
135
SCFM@40
PSIG
3.7
SCFM@90
PSIG
2.6
Current
Required
10 AMP
Volts/Hertz/
Phase
120/60/1
Tank Size
(gallons)
4

2- ENG
Westward Operating Instructions and Parts Manual Model 4YD76A
Portable Air Compressor
Safety Guidelines -
Definitions
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.
Indicates an
imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
NOTE: Indicates special instructions,
which are important but not related to
hazards.
IMPORTANT: Indicates factors
concerned with assembly, installation,
operation, or maintenance, which
could result in damage to the machine
or equipment if ignored.
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 sections.
Important Safety Instructions
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
when using such tools:
• work in a well ventilated area
• work with approved safety
equipment
• always wear MSHA/NIOSH
approved, properly fitting face
mask or respirator.
When using air tools, basic safety
precautions should always be
followed to reduce the risk of
personal injury.

Portable Air Compressor
3- ENG
Westward Operating Instructions and Parts Manual Model 4YD76A
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.
RISK OF EXPLOSION OR FIRE
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 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 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.
HOW TO PREVENT IT
IT 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 RISK OF FIRE, DO NOT ALLOW
THE COMPRESSOR TO OPERATE
UNATTENDED.
WHAT CAN HAPPEN
HAZARD

4- ENG
Westward Operating Instructions and Parts Manual Model 4YD76A
Portable Air Compressor
HAZARD
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.
HOW TO PREVENT IT
WHAT CAN HAPPEN
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 ALTER THE FACTORY
SET OPERATING PRESSURES.
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.
1. FAILURE TO PROPERLY DRAIN
CONDENSED WATER FROM THE
TANK, CAUSING RUST AND THINNING
OF THE STEEL TANK.
2. MODIFICATIONS OR ATTEMPTED
REPAIRS TO THE TANK.
3. UNAUTHORIZED MODIFICATIONS TO
THE UNLOADER VALVE, SAFETY
VALVE, OR ANY OTHER COMPONENTS
WHICH CONTROL TANK PRESSURE.
4. EXCESSIVE VIBRATION CAN WEAKEN
THE AIR TANK AND CAUSE RUPTURE
OR EXPLOSION.
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.

Portable Air Compressor
5- ENG
Westward Operating Instructions and Parts Manual Model 4YD76A
HAZARD
RISK OF ELECTRICAL SHOCK
HOW TO PREVENT IT
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.
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 ELECTRICAL
CODES.
MAKE CERTAIN THAT THE ELECTRICAL
CIRCUIT TO WHICH THE COMPRESSOR IS
CONNECTED PROVIDES PROPER
ELECTRICAL GROUNDING, CORRECT
VOLTAGE AND ADEQUATE FUSE
PROTECTION.
HAZARD
RISK FROM FLYING OBJECTS
HOW TO PREVENT IT
WHAT CAN HAPPEN
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.