SEARS 919.154320 Craftsman Permanently Lubricated Air Compressor Owner’s Manual

SEARS 919.154320 Craftsman Permanently Lubricated Air Compressor

FAQ

• Q: How do I reset the product to factory settings?
• A: To reset the product to factory settings, follow these steps:
  • [Reset Process Step 1]: [Description of Reset Process Step 1]
  • [Reset Process Step 2]: [Description of Reset Process Step 2]
• Q: Can I use the product outdoors?
• A: Yes, the product is suitable for outdoor use. However, please refer to the user manual for any specific guidelines or limitations regarding outdoor usage.
• Q: How often should I replace the [specific part]?
• A: The replacement frequency of [specific part] depends on several factors such as usage and environmental conditions. Please refer to the user manual or contact our customer support for detailed information.

WARRANTY

FULL ONE-YEAR WARRANTY 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. 698/731A, Chicago, IL 60684

SAFETY GUIDELINES
you recognize this information, we use the following symbols. Please read the manual and pay attention to these sections.

DANGER
URGENT SAFETY INFORMATION – A HAZARD THAT WILL CAUSE SERIOUS INJURY OR LOSS OF LIFE.
CAUTION
Information for preventing damage to equipment.

WARNING
IMPORTANT SAFETY INFORMATION – A HAZARD THAT MIGHT CAUSE SERIOUS INJURY OR LOSS OF LIFE.
NOTE
Information that you should pay special attention to.

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

SPECIFICATION

SPECIFICATION CHART

Model No.| 919.154020| 919.154320| 919.154120| 919.154420
---|---|---|---|---
Horsepower| 2| 2| 2| 2
DisplacementCFM| 10.0| 10.0| 10.0| 10.0
Bore| 23/s”| 23/s”| 23/s”| 23/s”
Stroke| 1.13″| 1.13″| 1.13″| 1.13″
Voltage-Single Phase| 120| 120| 120| 120
Minimum Branch Circuit Requirement| 15 amps| 15 amps| 15 amps| 15 amps

**Fuse Type “Fusetron” “Fusetron” “Fusetron” “Fusetron”

Air Tank Capacity Approximate Cut-in Pressure

| **Type T 12 gal.

80

| **Type T 20 gal.

80

| **Type T 12 gal. ASME

80

| **Type T 20 gal. ASME

80

---|---|---|---|---
Approximate Cut-out Pressure| 100| 100| 100| 100
SCFM @ 40 psig| 7.0| 7.0| 7.0| 7.0
SCFM @ 90 psig| 5.6| 5.6| 5.6| 5.6

CAUTION

These compressors can be operated on a 15 amp circuit if:

1. The voltage supply to the circuit is normal.
2. A circuit is not used to supply any other electrical needs (lights, appliances, etc.)
3. Extension cords comply with specifications in the owner’s manual.
4. The circuit is equipped with a 15 amp circuit breaker or 15 amp Fusetron Type “T” time delay fuse.

• 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.
• A circuit breaker is preferred. Use only a fuse or circuit breaker that has the same rating as the branch circuit where the air compressor is operated. If the air compressor is connected to a circuit protected by fuses, use dual element time delay fuses (Buss Fuestron Type “T” only).

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: Samples of compressor outfits, taken from production, were submitted to U.L. and found to comply with their requirements for design and performance.

Cut-in Pressure: While the motor is off, the air tank pressure drops as you continue to use your accessory. When the tank pressure drops to a certain low level the motor will re-start automatically. The low pressure at which the motor automatically re-starts is called “cut-in pressure”.
Cut-Out Pressures: 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

ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS

The following accessories are available through the current general sales catalogue or at full-line Sears stores.

• SPRAY GUNS
• BLOWGUNS
• AIR CAULKING GUNS
• AIR POWERED WASHER GUNS
• SANDBLASTERS
• AIRBRUSHES
• AIR LINE FILTERS
• TIRE AIR CHUCKS
• PAINT TANKS
• AIR TANKS
• INFLATER KITS
• QUICK CONNECTOR SETS (various sizes)
• VISCOSIMETER
• AIR PRESSURE REGULATORS
• OIL FOG LUBRICATORS
• AIR TOOLS: Sanders Drills Impact wrenches Hammers
• AIR HOSE: ¼/”, ⅝6″ Or ⅜” I.D. in various lengths

GENERAL INFORMATION

• You have purchased an air compressor unit consisting of a 1-cylinder, single-stage air compressor pump, an air tank, air hose, wheels, handle, and associated controls. You will also find an air chuck.
• This air compressor requires no oil. Now you can enjoy all the benefits of having an air compressor without ever having to purchase, add or change oil.
• Your air compressor can be used for operating paint spray guns, air tools, caulking guns, grease guns, airbrushes, sandblasters, inflating tires and plastic toys, spraying weed killers, insecticides, etc.
• Separate air transformers that combine the functions of air regulation and/or moisture and dirt removal should be used where applicable.

DESCRIPTION OF OPERATION

Air Compressor Pump: To compress air, the piston moves up and down in the cylinder. On the downstroke, air is drawn in through the air intake valves. The exhaust valve remains closed. On the upstroke of the piston, the air is compressed. The intake valves close and compressed air is forced out through the exhaust valve, through the outlet tube, 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 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 try to start but will be unable to. 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 heard 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.
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 pre-set pressure.
Regulator: The air pressure coming from the air tank is controlled by the regulator knob. Turn the 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.

ASSEMBLY INSTRUCTIONS

Tools Needed for Assembly

• pipe thread sealant (not included)
• an adjustable wrench for attaching the pressure regulator
• a %6″ socket or open-end wrench for attaching the wheels and hose adapter.
• a ¼6″ open-end wrench for attaching the air pressure gauges
• a ¾6″ hex key for installing the plug in the regulator
• a ⅜” open-end wrench to tighten handle screws
• a #2 phillips screwdriver for attaching the control cover.

Installing Wheels, Handle, Rubber Foot Strip
WARNING
THE WHEELS AND HANDLE DO NOT PROVIDE ADEQUATE CLEARANCE, STABILITY OR SUPPORT FOR PULLING THE UNIT UP AND DOWN STAIRS OR STEPS. THE UNIT MUST BE LIFTED OR PUSHED UP A RAMP.

1. Dip the handle grip in soapy water and slide into position as shown in the photo.
2. Attach the handle to the inside of the compressor sad- dle by pushing the handle in, until the slot in the handle engages with the tabs in the saddle. Pull the handle back and install the two screws, one on each side of the saddle. Tighten securely.

CAUTION
It may be necessary to brace or support one end of the outfit when attaching the wheels and the rubber foot strip because the air compressor will tend to tip.

• Remove the protective paper strip from the adhesive-backed rubber foot strip. Attach the rubber foot strip to the bottom of the air tank leg. Press firmly into place.
• Attach one wheel to each side of the air compressor. Use one shoulder bolt and one nut for each wheel. Tighten securely.

Installing Regulator
Use a small amount of pipe thread sealant on all pipe thread joints.
Install the regulator on the end of the manifold using the short pipe nipple. The arrow on the bottom of the regulator must point away from the manifold for the regulator to function properly.
Install the adapter and plug in the regulator. The plug is supplied with the regulator. Install the rear cover and the gauges at the same time. See the diagram below.

• Install the control cover. Fasten it to the manifold using the Philips screw. Install the plastic mounting ring to the regulator to fasten the top of the control cover.

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 obstruc- tions which could reduce air delivery of the 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 shroud are designed to allow for proper cooling. If humidity is high a Sears air filter can be installed to remove excessive moisture. Follow the instructions packaged with the air filter for proper installation.

Lubrication and Oil
This unit needs no additional 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.
If an extension cord must be used. be sure it is:

• 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.)

Grounding Instructions

WARNING
IMPROPER GROUNDING CAN RESULT IN ELECTRICAL SHOCK. IN THE EVENT OF A SHORT CIRCUIT, GROUNDING REDUCES THE RISK OF SHOCK BY PROVIDING AN ESCAPE WIRE FOR THE ELECTRIC CUR- RENT. THIS AIR COMPRESSOR MUST BE PROPERLY GROUNDED.

1. The 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 under all local codes and ordinances. The outlet must have the same configuration as the plug. DO NOT USE AN ADAPTER.
2. 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.
3. Inspect the plug and cord before each use. Do not use if there are signs of damage.

DANGER
RISK OF ELECTRICAL SHOCK. IF REPAIRING OR REPLACING THE CORD OR PLUG, THE GROUNDING WIRE MUST BE KEPT SEPARATE FROM THE CURRENT-CARRYING WIRES. NEVER CONNECT THE GROUND- ING WIRE TO A FLAT BLADE PLUG TER- MINAL. (THE GROUNDING WIRE HAS INSULATION WITH AN OUTER SURFACE THAT IS GREEN – WITH OR WITHOUT YEL- LOW 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.

Break-In Procedures
CAUTION
Sreous instructors are the following followed.
This procedure is only required the first time the air compressor is put into service.

1. Set the pressure switch OFF/AUTO lever to the “OFF” position.
2. Plug the power cord into the correct branch circuit receptacle.
3. Turn the air pressure clock in no tuning it fully, to pre-
4. Move the OFF/AUTO lever to “AUTO”. The compressor will start.
5. Run the compressor for 10 minutes. Make sure the regulator is open and there is no tank pressure build-
6. After 10 minutes, close the regulator by turning it counterclockwise. The air tank will fill to cut out pressure and then the motor will stop.

OPERATING PROCEDURES

1. Before attaching the air hose or accessories, make sure the OFF/AUTO lever is set to “OFF” and the air regulator is closed. (Close it by turning it counter-clockwise.)
2. Attach the hose and accessories.

WARNING
TOO MUCH AIR PRESSURE CREATES A HAZARDOUS RISK OF BURSTING. CARE- FULLY FOLLOW STEPS 3 AND 5 EACH TIME THE COMPRESSOR IS USED.

CAUTION
COMPRESSED AIR FROM THE OUTFIT MAY CONTAIN WATER CONDENSATION. DO NOT SPRAY UNFILTERED AIR AT AN ITEM THAT COULD BE DAMAGED. SOME AIR-OPERATED TOOLS OR DEVICES MAY REQUIRE FILTERED AIR. READ THE INSTRUCTIONS FOR THE AIR TOOL OR DEVICE.

• Check the manufacturer’s maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed the maximum pressure rating.
• Turn the OFF/AUTO lever to “AUTO” and allow tank pressure to build. The motor will stop when tank pressure reaches “cut-out” pressure.
• Open the regulator by turning it clockwise. Adjust the regulator to the correct pressure setting. Your com- pressor is ready for use.
• Always operate the air compressor in well-ventilated areas; free of gasoline or other solvent vapours. Do not operate the compressor near the spray area.
• When you are finished:
• Set the “OFF-AUTO” lever to “OFF”.
• Turn the regulator counter-clockwise and set the out-let pressure to zero.
• Remove the air tool or accessory.
• Open the regulator and allow the air to slowly bleed from the tank. Close the regulator when tank pres- sure is approximately 20 psi.
• Drain water from the air tank.

WARNING
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 and allow moisture to drain.
NOTE
If the drain cock valve is plugged, release all air pressure. The valve can then be removed, cleaned, then reinstalled.

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

MAINTENANCE

WARNING
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.

Air Filter – Inspection
NOTE
Keep the air filter clean at all times. Do not oper- ate 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. If it is dirty, simply pull it out. You may wash it with a mild detergent and warm water, or replace it.
Check Valve – Replacement

1. Release all air pressure from air tank and unplug outfit.
2. Remove shroud.
3. Loosen the top and bottom nuts and remove the outlet tube.
4. Remove the pressure release tube and fitting.
5. Unscrew the check valve (turn counterclockwise) using a socket wrench.
6. Check that the valve disc moves freely inside the check valve and that 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.
7. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).
8. Replace the pressure release tube and fitting.
9. Replace the outlet tube and tighten top and bottom nuts.
10. Replace the shroud.

Safety Valve – Inspection
WARNING
IF THE SAFETY VALVE DOES NOT WORK PROPERLY, OVER-PRESSURIZATION MAY OCCUR, CAUSING AIR TANK RUPTURE OR AN EXPLOSION. OCCASIONALLY 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.

Motor
The motor has an automatic reset thermal overload pro- tector. If the motor overheats for any reason, the over- load protector will shut off the motor. The motor must be allowed to cool down before restarting. The compressor will automatically re-start after the motor cools. If the overload 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 motor is started and is running.

STORAGE

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

1. Review the “Maintenance” section on the preceding pages 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. Store the air compressor in a clean and dry location.

TROUBLESHOOTING GUIDE

WARNING
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS, OR COM- PRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS UNPLUG THE AIR COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.

AIR COMPRESSOR DIAGRAM

COMPRESSOR PUMP DIAGRAM

PARTS LIST

KEY

Key 63 & 64 Can only be purchased as part of KK-4821 connecting rod kit.

CRAFTSMAN PERMANENTLY LUBRICATED 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 is 919.
This number can be found on the label which is located on the back of the shroud.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION:

• PART NUMBER
• MODEL NUMBER
• PART DESCRIPTION
• 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 elec- tronically transmitted to a Sears Repair Parts Distribution Center for handling.

CONTACT

• Sears, Roebuck and Co., Chicago, IL 60684 U.S.A.

References

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