Craftsman 919152811 Air Compressor User Manual

Craftsman 919152811 Air Compressor User Manual

NOTE
For identification of Re-air Parts, see the separate Parts List Manual.

IMPORTANT
Read the Safety Guidelines and All Instructions Carefully Before Operating Record in the spaces provided,

1. The mode_ number which can be found on the maintenance label on the top of the motor cover or the tank
2. The code number can be found on the foil label on the rear of the air tank.
3. The Manufacturers Number is located on the metal data plate which is welded onto the backside of the air tank. (This data plate is painted the same color as the tank.)
4. Retain these numbers for future reference.

FULL ONE-YEAR WARRANTY ON AIR COMPRESSORS
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 SERVICE CENTER/DEPARTMENT THROUGHOUT THE UNITED STATES AND SEARS 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., Sears Tower, Dept. 731CR-W, Chicago, IL 60684

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 following symbols. Please read the manual and pay attention to these sections. URGENT SAFETY INFORMATION – A HAZARD THAT WILL CAUSE SERIOUS INJURY OR LOSS OF LIFE.

IMPORTANT SAFETY INFORMATION
A HAZARD THAT MIGHT SERIOUS INJURY OR LOSS OF LIFE. Information for preventing damage to equipment.

NOTE
information that you should pay special attention to.

WARNING
HAZARDS CAN OCCUR IF EQUIPMENT IS NOT USED PROPERLY. PLEASE READ THE FOLLOWING CHART.

GLOSSARY

CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of measure of air delivery.
PSIG: Pounds per square inch gauge; a unit of measure of pressure.
ASME: American Society of Mechanical Engineers; made, tested, inspected, and registered to meet the standards of the ASME.
U.L. Listed: This product is Listed by UndenNriters Laboratories, Inc. (UL).

Samples of this product have been evaluated by UL and meet the applicable UL 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 re-starts is called =cut-in pressure.” Cut-Out Pressure: When you turn on your air compressor and it 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.”

ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS
The following accessories are available through the current general sale catalog or at full-line Sears stores.

• SPRAY GUNS
• BLOWGUNS
• AIR CAULKING GUNS
• POWERWASHER
• SANDBLASTERS
• AIRBRUSHES
• AIR LINE FILTERS
• TIRE AIR CHUCKS
• PAINT TANKS
• AIRTANKS
• INFLATORKITS
• QUICK CONNECTOR SETS (various sizes)
• VISCOSIMETER
• AIR PRESSURE REGULATORS
• OIL FOG LUBRICATORS
• AIR TOOLS: Sanders
• DdUs Impact Wrenches
• Hammers
• AIR HOSE: 114″, 5/16″ or 3t8″ I.D in various lengths
• NAILER/STAPLERS Decking
• Farming Roofing Siding
• Finishing Carpeting Upholstery Picture Framing

GENERAL INFORMATION

You have purchased an air compressor unit consisting of guns, air tools, caulking guns, grease guns, airbrushes, a 2-cylinder, single-stage air compressor pump, an air sandblaster, or inflating tires, and plastic toys, a spraying tank. Included with portable compressors only are air weed killers, insecticides, etc. An air pressure regulator is a hose, tire air chuck, wheels, regulator, and gauges, and required for most applications. handle. Stationary units are not supplied with regulators. An air filter that removes moisture and dirt from the air compressor requires no oil. Now you can enjoy compressed air should be used where applicable. all the benefits of having an air compressor without ever having to purchase, add, or change oil. These accessories can be purchased from most Sears stores. Your air compressor can be used for operating paint spray

DESCRIPTION OF OPERATION

Air Compressor Pump: To compress air, the pistons move up and down in the cylinders. On the downstroke, air is drawn in through the air intake valves. The exhaust valves remain dosed. On the upstroke of the piston, the air is compressed. The intake valves close and compressed air is forced out through the exhaust valves, through the outlet tubes, through the check valve, and into the air tank. Working air is not available until the compressor has raised the air tank pressure above what is 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. If the air is not released, the motor will not be able to start. The pressure release valve allows the motor to restart freely.

When the motor stops running, air will be heard escaping from the valve for a few seconds. No air should be leaking when the motor is running. 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, Globe Valve: Turn the knob counter-clockwise to open the valve and clockwise to close. Safety Valve: If the pressure switch does not shut off the air compressor at its cut-out pressure setting, the safety valve will protect the tank against high pressure by popping out = at its factory-set pressure (slightly higher than the pressure switch cut-out setting).

Regulator:. The air pressure coming from the air tank is controlled by the regulator. Turn the regulator knob clockwise to increase pressure and counter- clockwise to decrease pressure. To avoid minor readjustment after making a change in the pressure setting, always approach the desired pressure from a lower pressure. When reducing from a higher to a lower setting, first reduce to some pressure less than that desired, then bring up to the desired pressure. Depending on the air requirements of each particular accessory, the outlet-regulated air pressure may have to be adjusted while operating the accessory.

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 or equal to the tank pressure. See “Operating Procedures’.

Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank. Cooling System: 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.

Tools Needed for Assembly

•  a 9/16″ socket or open-end wrench for attaching the wheels or removing shipping beards
• a 3/8″ open-end wrench or socket to tighten handle screws

ASSEMBLY FOR PORTABLE COMPRESSORS

Installing Wheels, Handles, Rubber Foot
Strip
THE WI-IEELS AND HANDLE DO NOT PROVIDE ADEQUATE CLEARANCE, STABILITY, OR SUPPORT FOR PULLING UNIT 2. UP AND DOWN STAIRS OR STEPS. THE UNIT MUST BE LIFTED OR PUSHED UP A RAMP. Attach the handle to the compressor saddle by inserting the handle inside the compressor saddle and lining up the two bolt holes on each side. Install the four screws, two on each side.

Tighten securely. H may be necessary to brace or support one end of the outfit when attaching the wheels and the rubber foot strip because the air a compressor will tend to tip. Install one shoulder bolt and one nut for each wheel using the upper bolt hole for 30 and 33-gallon units. Tighten securely. The outfit will sit level if the wheels are properly installed. Clean and dry air tank leg opposite wheels. Remove the protective paper strip from the adhesive-backed rubber foot strip. Attach the rubber foot strip to the bottom of the leg. Press firmly into place.

REMOVAL OF SHIPPING BOARDS AND INSTALLATION OF STATIONARY (PERMANENTLY MOUNTED) UNITS
It may be necessary to brace or support one side of the outfit when removing the shipping boanJs because the air compressor will tend to tip. Remove all packaging such that only the compressor on the pallet remains. Remove and discard the (4) screws and washers that hold the compressor to the pallet. This compressor is designed to be bolted directly to a level floor. Before installing, place the new washers which are supplied with the compressor, between the feet and floor such that the dog base at the bottom of the tank does not contact the floor. Tighten bolts 15- 20 tt. tbs.

INSTALLATION AND BREAK-IN PROCEDURES

Location of the Air Compressor
Locate the air compressor in a clean, dry, and well-ventilated area. The air filter must be kept clear of obstructions which could reduce air delivery air compressor, 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 head and Shrouds are designed to allow for proper cooling.

Break-In Procedures
The procedure is required only once before the compressor is put into service. Operate the compressor with the regulator or shut-off valve fully open for 15 minutes. Make sure that no pressure is building in the tank. After 15 minutes, close the regulator or shut-off valve and allow the tank to fill with cut-out pressure, and then the motor will stop. Your compressor is now ready for use.

Lubrication and Oil
This unit needs no lubrication or oiling.

Extension Cords
Use an extra air hose instead of an extension cord to avoid voltage drop and power loss to the motor, and to prevent overheating. If an extension cord must be used, be sure it is: a 3-wira 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 your Parts List Manual for the voltage and circuit protection requirements of your compressor, Use only a fuse or circuit breaker that is the same rating as the branch circuit the air compressor is operated on. If the compressor is connected to a circuit protected by fuses, use only dual element time delay fuses, as noted in that Service Bulletin. Refer to the Parts List Manual for your compressor. Certain air compressor models can be operated on a 15 amp circuit if:

1. The voltage supply to the circuit is normal.
2. The circuit is not used to supply any other electrical needs (lights, appliances, etc.).
3. Extension cords comply with specifications.
4. The circuit is equipped with a 15 amp circuit breaker or 15 amp time delay fuse. Use a Fusetron Type T time delay fuse.
5. If any of the above conditions cannot be met, or if the 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

GROUNDING INSTRUCTION

Portable Compressors
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. The plug must be used with an outlet that has been installed and grounded by all local codes and ordinances. The outlet must have the same configuration as the plug. See illustration. DO NOT USE AN ADAPTER. Inspect the plug and cord before each use. Do not use it if there are signs of damage.

IMPROPER GROUNDING CAN RESULT IN ELECTRICAL SHOCK.
Do not modify the plug that has been provided. If it does not fit the available outlet, the correct outlet should be installed by a qualified electrician. If repairing or replacing a cord or plug, the grounding wire must be kept separate from the current-carrying wires. Never connect the grounding wire to a fiat blade plug terminal. The grounding wire has insulation with an outer surface that is green – with or without yellow stripes. 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.

Wiring Instructions – Stationary (Permanently
Mounted) Compressors
If your compressor is not equipped with a plug-in type power cord, perform electrical wiring according to the following instructions:

RISK OF ELECTRICAL SHOCK. IMPROPER ELECTRICAL GROUNDING CAN RESULT IN ELECTRICAL SHOCK. WIRING FOR THE PRESSURE SWITCH SHOULD BE DONE BY A LICENSED ELECTRICIAN BY NATIONAL AND LOCAL CODES AND ORDINANCES. Install the compressor as close to the main power supply as possible. This practice will avoid using long lengths of electrical wiring for the power supply which can cause power loss to the motor. When connecting wires, make sure that :

1. The amperage rating of the electrical box is adequate. Refer to the Specification Chart in the Outfit Parts Bulletin for your compressor.
2. The supply line has the same electrical characteristics (voltage, cycle, phase) as the motor. Widng must be such that full motor nameplate voltage plus or minus 10% is available at the motor terminals during starting. Refer to local codes for recommended wire sizes for correct wire size and maximum wire run; undersize wire causes high amp draw and overheating to the motor.
3. Electrical wiring must be located away from hot surfaces such as manifold assembly, compressor outlet tubes, beads, or cylinders

OPERATING PROCEDURES

1. Before attaching the air hose or accessories, make sure the pressor is ready for use. the OFF/AUTO lever is set to “OFF” and the air regulator or globe valve is closed.

2. Attach the hose and accessories.

3. Always operate the air compressor in well-ventilated areas; free of gasoline or other solvent vapors. Do not operate the compressor near the spray area.

4. TOO MUCH AIR PRESSURE CREATES A HAZARDOUS RISK OF BURSTING. CAREFULLY FOU. OW STEPS 3 AND 5 EACH TIME THE COMPRESSOR IS USED.

5. Compressed air from the outfit may contain water condensation. Do not spray unfiltered air at an item that could be damaged.

6. Some air-operated tools or devices may require filtered air. Read the instructions for the air tool or device.

7. Check the manufacturer’s maximum pressure rating for air tools and accessories.

8. The regulator outlet pressure must never exceed the maximum pressure rating. If your compressor is not supplied with a regulator with a gauge, install one before using accessories.

9. Turn the OFF/AUTO lever to “AUTO” and allow tank pressure to build. The motor will stop when tank pressure reaches =cut-out” pressure.

10. Open the regulatorbytuming it clockwise. Adjust the regulator to the correct pressure setting. Your comWhen you are finished:

11. Setthe”OFFIAUTO”leverto=OFF “.

12. Turn the regulator counterclockwise and set the outlet pressure to zero.

13. Remove the tool or accessory.

14. Open the regulator and allow the air to slowly bleed from the tank. Close the regulator when tank pressure is approximately 20 psi.

15. Drain waterfrem airtank.

16. 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. With tank pressure at approximately 20 psi, open the drain cock or drain valve.
    NOTE : If the drain cock valve is plugged, release all air pressure. The valve can then be removed, cleaned, then reinstalled.

17. After the water has been drained, close the drain cock or drain valve. The air compressor can now be stored.

MAINTENANCE

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 BE QUALIFIED SERVICEPERSON

Hot surfaces. Risk of burn. Compressor heads are exposed when the filter cover is removed. Allow the compressor to cool before servicing. _ Keep the air filter clean at all times. Do not operate the compressor with the air filter removed. A dirty air filter will not allow the compressor to operate at full capacity. Before you use the compressor, check the air filter to be sure it is clean.

Replacement – Stationary (Permanently Mounted) Compressors

1. Release all air pressure from the air tank and disconnect the outfit from the supply circuit.
2. Remove the rear shroud.
3. Remove tubes and compression fittings at the tee and remove the tee from the check valve.
4. Remove the pressure release tube and fitting from the check valve.
5. Unscrew from the check valve (turn counterclockwise) using a socket wrench.
6. The check valve may be cleaned with a solvent, such as paint and varnish remover.
7. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise). DO NOT OVERTIGHTEN.
8. Replace the pressure release tube, fitting, and tee.
9. Replace the outlet tubes and tighten the fittings.
10. Replace the shroud.
11. Connect the compressor to the supply circuit

Check Valve Replacement – Portable Compressors
Risk of personal injury. Manifold assembly contains compressed air which can be hazardous. The manifold gets hot during operation.

Before servicing

1. Unplug or disconnect the electrical supply to the compressor.
2. Bleed tank of pressure.
3. Allow the compressor to cool.
4. Release all air pressure from the air tank and unplug the outfit.
5. Remove the console cover.
6. Loosen lower ouUet tube nuts that secure outlet tubes To the upper manifold section.
7. Remove the six screws securing the upper manifold section to the lower section.
8. Lift the upper manifold assembly and invert it so that the flapper valve and o-dog are exposed.
9. Remove the two small screws securing the flapper valve and restrictor.
10. Replace the flapper valve and re-assemble the restdctorand two screws.
11. Assemble the upper manifold assembly to the lower section. Make sure the o-dating is retained in the upper section as it is inverted and the outlet tube slides into the upper section.
12. Tighten six screws.
13. tighten lower outfit tube nuts.

Safety Valve – Inspection
If the safety valve does not work properly, over-pressurization may occur, causing air tank rupture or an explosion. Before starting the 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.

MAINTENANCE (contd)

The motor has an automatic meat thermal overload protector. If the motor overheats for any reason, the overload protector will shut off the motor. The motor must be allowed to cool down before restarting. The compressor will automatically restart after the motor cools. If the overdose protector shuts the motor off frequently, check for a possible voltage problem. Low-voltage can also be suspected when:

1. The motor does not get up to full power or speed.
2. Fuses blow out when starting the motor; lights dim and remain dim when the motor is started and is running.

Storage
Before you store the air compressor, make sure you do the following:

1. Review the =Maintenance” and “Operating Procedures” sections and perform maintenance as necessary. Be sure to drain water from the air tank.
2. Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them loosely around the compressor handle.
3. Store the air compressor in a clean and dry location.

TROUBLESHOOTING GUIDE

PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS, OR COMPRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. BEFORE ATTEMPTING ANY
REPAIRS, UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.

TROUBLESHOOTING GUIDE (Continued)

CRAFTSMAN SERVICE
MODEL NO.
HOW TO ORDER
REPAIR PARTS

ENTERAL MANUAL FOR PERMANENTLY LUBRICATED TANK-MOUNTED AIR COMPRESSOR
Now that you have purchased your Sears Air Compressor, should a need ever exist for repair parts or service, simply contact any Sears Service Center and most Sears, Roebuck, and Co. stores, Be sure to provide all pertinent facts when you call or visit. The model number of your Sears Air Compressor can be found on the label which is located on the top of the motor cover or the tank.’

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION
PART NUMBER  PART DESCRIPTION MODEL NUMBER NAME OF ITEM
All parts listed may be ordered from any Sears Service Center and most Sears stores. If the parts you need are not stocked locally, your order will be electronically transmitted to a Sears Repair Parts Distribution Center for handling.

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