Harbor Freight Tools 93271 Air Compressor User Manual
Contents
1. cee es cee et ND cs es eae l ek 12B End Cover 30B Bolt 13B Crankshaft Retainer 31B Screw 14B Dip Stick 32B _ Radiating Cover 15B Connecting Rod 33B Seal Washer 16B Gasket 34B Motor Assembly 17B Bolt 35B Overload Switch 18B Front Cover k Not available individually Must be ordered as entire Motor Assembly See part 34B J Os wi AeA 1B EKO K gt a a 288 2 830B 3B 328 21B 228 238 248 258 268 338 NOTE Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts SKU 93271 For technical questions please call 1 800 444 3353 PAGE 102. so slowly and carefully unscrew no more than four threads the Water Drain Valve 10A until the compressed air and condensation begins to be released from the Air Tank Allow sufficient time for all of the air and condensation to escape from the Air Tank Then firmly retighten the Water Drain Valve See Assy Diagram A 5 EVERY 100 HOURS OF USE Clean the Air Filter 7A with a mild solvent Then dry and reattach the Air Filter NOTE Replace the Air Filter if it is too dirty to properly clean See Assy Diagram A 6 EVERY 500 HOURS OR 12 MONTHS Drain and replace the old oil with new premium quality 30 weight non detergent oil When the Oil Drain 16A is removed the old oil needs to be collected and disposed of in full accord with all applicable waste disposal ordinances TO CLEAN wipe with a damp cloth using a mild detergent or mild solvent 8 WHEN STORING Keep the Air Compressor in a clean dry location PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTA TION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TOTHE PRODUCT ORTHAT HE OR SHE IS QUALIFIEDTO REPLACE ANY PARTS OFTHE PRODUCT IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS RE PLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSE
3. equipment Note The oil reservoir has an optimal capacity of 30 ounces of oil MAKE SURE ALL TOOLS AND EQUIPMENT USED WITH THE AIR COMPRES SOR ARE RATED TO THE APPROPRIATE CAPACITY Do not use any tool or equipment that does not operate at or above the PSI that the compressor s regulator is set to DRAIN AIR COMPRESSOR EVERY DAY Do not allow moisture to build up inside the Air Compressor See INSPECTION MAINTENANCE AND CLEANING section of this manual MAINTAIN A SAFE WORKING ENVIRONMENT Keep the work area well lit Make sure there is adequate surrounding workspace Always keep the work area free of obstructions grease oil trash and other debris Do not use the Air Compressor in areas near flammable chemicals dusts and vapors AVOID INJURY Never direct the pressurized air stream at people or animals DO NOT ALTER OR REMOVE THE FACTORY SEALED PRESSURE RELEASE VALVE 5A See Assy Diagram A DO NOT OPEN THE WATER DRAIN VALVE 10A SO THAT MORE THAN FOUR THREADS ARE SHOWING See Assy Diagram A AN EXTENSION CORD MUST NEVER BE USED WITHTHIS ITEM Connecting this item to an outlet through an extension cord MAY CAUSE ELECTRICAL DAMAGETO THE MOTOR and could present a FIRE HAZARD Longer air hoses are typically safer and more effective than extension cords THIS UNIT REQUIRES A 230 VAC UL LISTED TWISTLOCK PLUG TO BE INSTALLED BY A LICENSED TECHNICIAN BEFORE SETUP OR USE THIS COMPRESSOR MAY REQUIRE A DEDIC
4. its ON position to allow air to the pneumatic tool With the Air Compressor turned on the operation is automatic and under the control of the automatic switches inside the box under the Power Switch 1A NEVER open the power switch box or adjust the controls within To Adjust The Air Output To The Pneumatic Tool 1 NOTE When adjusting the air pressure being forwarded to the pneumatic tool you will need to compare the pressure readings of both the Tank Pressure Gauge 3A and the Tool Pressure Gauge 4A The reading on the Tank Pressure Gauge dic tates the maximum minimum air pressure at which the Tool Pressure Gauge may also be set With the Air Compressor running and the air hose and pneumatic tool hooked up to the Air Compressor pull up on the Tool Pressure Adjuster 2A Turn the Tool Pres SKU 93271 For technical questions please call 1 800 444 3353 PAGE 6 sure Adjuster clockwise to increase the air output to the tool up to the working air pressure 115 PSI as indicated on the Tank Pressure Gauge 3A Never exceed the maximum PSI for the tool being used or any component of the air system 3 Turn the Tool Pressure Adjuster 2A counterclockwise to decrease the air output to the tool To Use The Tank Pressure Relief Valve 1 The Tank Pressure Relief Valve Ring 5A is used when decompression is needed quickly and efficiently It is also designed to release automatically if the compressor pressurizes up
5. to or beyond it s safe limit 2 To decompress the Air Tank 9A pressure press the ON OFF Power Switch 1A down to turn off the Air Compressor 3 Pull out on the Tank Pressure Relief Valve Ring 5A to immediately release air pressure in the Air Tank 9A To Empty Moisture From The Tank 1 The Water Drain Valve 10A is located underneath the Air Tank 9A and should be used daily to release all trapped moisture through this valve If this is not done condensation may cause Air Tank corrosion See Assy Diagram A 2 WARNING Do not open the Water Drain Valve 10A so that more than four threads are showing 3 Push down on the ON OFF Power Switch 1A to turn off the Air Compressor Then unplug the Air Compressor s Power Cord from the electrical outlet 4 You may wish to lay a pan under the drain to collect the dirty water trapped within Slowly and carefully unscrew no more than four threads the Water Drain Valve 10A until the compressed air and condensation begins to be released from the Air Tank 9A Allow sufficient time for all of the air and condensation to escape from the Air Tank Then firmly retighten the Water Drain Valve IMPORTANT IF THE MOTOR STOPS UNEXPECTEDLY the overload breaker may have sensed an over current condition and stopped the motor to protect it If this occurs shut off the pressure switch and wait at least 5 minutes Release the air pressure in the tank to ease res
6. ATED ELECTRICAL CIRCUIT AS THE AMPERAGE DRAW UNDER FULL LOAD COMBINED WITH USE OF ANY OTHER ITEM MAY OVERLOAD YOUR CIRCUIT WARNING This product contains or produces a chemical known to the State of California to cause cancer and birth defects or other reproductive harm California Health amp Safety Code 25249 5 et seq People with pacemakers should consult their physician s before using this prod uct Operation of electrical equipment in close proximity to a heart pacemaker could cause interference to or failure of the pacemaker SKU 93271 For technical questions please call 1 800 444 3353 PAGE 4 UNPACKING When unpacking check to make sure all the parts shown on the Parts Lists on pages 10 and 11 are included If any parts are missing or broken please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible OPERATING INSTRUCTIONS NOTE For additional references to the parts listed below refer to the Assembly Diagrams on pages 10 and 11 To Check The Oil Level 1 The Oil Window 20B is used to determine if oil is needed The oil level should always be at the maximum level red line on the Oil Window See Figure A and Assy Diagram B 2 WHEN OPENING THE DIP STICK Make sure to unscrew do not pull the Dip Stick 14B out See Figure A 3 If necessary add a premium quality 30 weight non detergent oil into the Oil Fill Hole until the level of oil reaches th
7. CENTRAL PNEUMATIC 21 GALLON 230 VAC CAST IRON VERTICAL AIR COMPRESSOR M93271 OPERATING INSTRUCTIONS Distributed Exclusively by f HARBOR FREIGHT 7 Ka 3491 Mission Oaks Blvd Camarillo CA 93011 Visit our Web site at http www harborfreight com Copyright 2005 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools For technical questions please call 1 800 444 3353 SPECIFICATIONS Item Description Maximum Air Pressure 115 PSI with Auto Shut Off Air Tank Capacity 21 Gallons 3 5 CFM at 90 PSI 8 8 CFM at 40 PSI 3 HP Rated Motor 230 Volt 60 Hz Single Phase 7 Amps Pump Stage Single Air Outlet Size 1 4 18 NPT 152 Pounds 20 Air Flow Capacity Electrical Requirements SAVE THIS MANUAL You will need this manual for the safety warnings and precautions assembly operating inspection maintenance and cleaning procedures parts list and assembly diagram Keep your invoice with this manual Write the invoice number on the inside of the front cover Keep this manual and invoice in a safe and dry place for future reference GENERAL SAFETY WARNINGS AND PRECAUTIONS KEEP WORK AREA CLEAN AND DRY Cluttered damp or wet work areas invite injuries KEEP CHILDREN AWAY FROM WORK AREA Do not allow children to handle thi
8. D TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLA TION OF REPLACEMENT PARTS THERETO SKU 93271 For technical questions please call 1 800 444 3353 PAGE 8 PARTS LIST A ASSEMBLY DIAGRAM Part Description Description Qty ON OFF Power Switch Quick Release Coupler Tool Pressure Adjuster Tank Pressure Gauge Rubber Wheel Washer Tool Pressure Gauge Nut MO M Pp Pressure Release Valve Fitting Air Flow Valve Oil Drain Plug with Gasket Air Filter Foot Air Flow Lid Unloader Valve Air Tank Polyurethane Unloader Tube SKU 93271 Water Drain Valve Copper Air Tube For technical questions please call 1 800 444 3353 PAGE 9 PARTS LIST B ASSEMBLY DIAGRAM B Part Description Qty Part Description Qty 1B Bolt 19B Gasket 2B Cylinder Case 20B Oil Window 3B Gasket 21B Crankshaft Bolt 4B Valve Seat 22B Crankshaft 5B Gasket 23B Crankshaft Case 6B Cylinder 24B Stator 7B Compression Ring 8B Oil Scraping Ring 9B Piston 10B Gasket 11B Piston Pin 25B Bearing 26B Armature 27B Capacitor 28B Radiating Fan Wheel 29B Retainer Ring OY i ai ai AS ai ek es es ek A at ek ek i ek l a a a a h IND
9. e maximum level as indicated on the Oil Window 20B The optimal capacity of the oil reservoir is 30 ounces Do not overfill Then thread the Dip Stick back into the Oil Fill Hole being careful not to strip the plastic threads Dip Stick 14B Front Cover 18B Oil Window 20B FIGURE A To Turn The Air Compressor On il Check to make sure the Water Drain Valve 10A is fully closed See Assy Diagram A SKU 93271 For technical questions please call 1 800 444 3353 PAGE 5 Pull on the Pressure Relief Valve 5A briefly to ensure that it does not stick Turn the Air Flow Valve 6A to its OFF position Connect the air hose not provided to the Air Flow Valve 6A of the Air Compres sor Then connect the other end of the air hose to the pneumatic tool not provided that is to be used To extend the life of your air tools and equipment it is recommended to install an oiler and water filter in series available from Harbor Freight Tools with the Air Output Line of the Air Compressor See Figure B AIR COMPRESSOR FIGURE B Note Always plug the Power Cord of the Air Compressor into a 230V electri cal source Pull up on the ON OFF Power Switch 1A to turn the Air Compressor on Push down on the ON OFF Power Switch to turn the Air Compressor off Allow sufficient time for the Tank Pressure Gauge 4A to indicate 80 PSI before using the Air Compressor Turn the Air Flow Valve 6A to
10. roduct Replace or repair damaged or worn parts immediately REPLACEMENT PARTS AND ACCESSORIES When servicing use only identi cal replacement parts Only use accessories intended for use with this product Approved accessories are available from Harbor Freight Tools MAINTAIN THIS PRODUCT WITH CARE Keep this product clean and dry for better and safer performance MAINTENANCE For your safety service and maintenance should be performed regularly by a qualified technician USE THE RIGHT TOOL FOR THE JOB Do not attempt to force a small tool or attachment to do the work of a larger industrial tool There are certain applications for which this tool was designed It will do the job better and more safely at the rate for which it was intended Do not modify this tool and do not use this tool for a purpose for which it was not intended WARNING The warnings precautions and instructions discussed in this manual cannot cover all possible conditions and situations that may occur The operator must understand that common sense and caution are factors which cannot be built into this product but must be supplied by the operator SKU 93271 For technical questions please call 1 800 444 3353 PAGE 3 10 11 SPECIFIC PRODUCT WARNINGS AND PRECAUTIONS CAUTION Make sure to fill the Air Compressor with a premium quality 30 weight non detergent oil before each use Running the Air Compressor with no oil or low oil will cause damage to the
11. s product STORE IDLE EQUIPMENT When notin use tools and equipment should be stored in a dry location to inhibit rust Always lock up tools and equipment and keep out of reach of children DO NOT USE THIS PRODUCT IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS Read warning labels on prescriptions to determine if your judgement or reflexes are impaired while taking drugs If there is any doubt do not attempt to use this product USE EYE HAND AND HEARING PROTECTION Wear ANSI approved safety impact goggles hearing protection and heavy duty work gloves when using this product REV 10 05 SKU 93271 For technical questions please call 1 800 444 3353 PAGE 2 DRESS SAFELY Do not wear loose clothing or jewelry as they can become caught in moving parts Wear a protective hair covering to prevent long hair from becoming caught in moving parts If wearing a long sleeve shirt roll sleeves up above el bows DO NOT OVERREACH Keep proper footing and balance at all times to prevent tripping falling back injury etcetera INDUSTRIAL APPLICATIONS MUST FOLLOW OSHA REQUIREMENTS STAY ALERT Watch what you are doing at all times Use common sense Do not use this product when you are tired or distracted from the job at hand CHECK FOR DAMAGED PARTS Before using this product carefully check that it will operate properly and perform its intended function Check for damaged parts and any other conditions that may affect the operation of this p
12. tarting Then press the breaker button to reset it and turn on the pressure switch To help prevent this ensure that this compressor is set up on a dedicated circuit one with no other equipment running on it and that the distance from the compressor to the circuit breaker panel is as short as possible Extension cords should not be used and the outlet should not be far from the panel SKU 93271 For technical questions please call 1 800 444 3353 PAGE 7 INSPECTION MAINTENANCE AND CLEANING ib WARNING Always disconnect the Air Compressor from its electrical supply source before performing any inspection maintenance or cleaning 2 BEFORE EACH USE inspect the general condition of the Air Compressor Check all air fittings for leaks Check for loose screws misalignment or binding of moving parts cracked or broken parts damaged power cord and plug and any other con dition that may affect the safe operation of this tool If abnormal noise or vibration occurs immediately disconnect the Air Compressor from its electrical supply source and have the problem corrected before further use Do not use damaged equipment 3 DAILY Check the Air Compressor oil level If necessary fill with a premium quality 30 weight non detergent oil NOTE When checking the oil level make sure to unscrew do not pull the Dip Stick 14B See Assy Diagram B 4 DAILY Purge the Air Tank 9A of all air and moisture to prevent corrosion To do
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