Harbor Freight Tools 90234 Air Compressor User Manual
Contents
1. If not using a water filter and oiler squirt several drops of air tool oil into the air intake plug of the air tool Then connect the other end of the air hose directly from the Air Outlet Valve of the Air Compressor to the air tool See Figure E and Figure F next page CLOSED POSITION OPEN POSITION CONNECT AIR HOSE HERE FIGURE E SKU 90234 PAGE 10 REV 04 04 SA Make sure the Tank Drain Valve part 59 is closed See Figure F 4 Make sure the On Off Pressure Switch part 66 is DOWN in its OFF position Then plug the Power Cord part 64 into the nearest 120 volt grounded electrical outlet See Figure F 5 Pull UP on the On Off Pressure Switch part 66 to its ON position See Figure F d Af ON OFF PRESSURE SWITCH 66 T REGULATOR 70 e E AIR OUTLET VALVE 69 Jeng bay TA AIR HOSE l i PRESSURE GAUGE AIR OUTLET NOT INCLUDED 65 PRESSURE GAUGE 71 o ATTACH TO TANK DRAIN VALVE AIR TOOL FIGURE F 59 en 6 Allow the Air Compressor to build up from 85 PSI to 115 PSI as indicated on the Tank Pressure Gauge part 65 When the air pressure reaches 85 PSI open the Air Outlet Valve part 69 to allow the air hose and air tool to become pres surized See Figure F 7 As long as the On Off Pressure Switch part 66 Is in its ON position the opera tion of the Air Compressor is automatic controlled by an internal pressure swit2. 19 20 21 When checking the oil level make sure to unscrew do not pull the Oil Plug part 78 out Drain the Air Compressor s Tank part 50 every day Do not allow moisture to build up inside the Tank Do not open the Tank Drain Valve part 59 so that more than four threads are showing Avoid injury Never direct the Air Outlet Valve part 69 at people or animals Do not alter or remove the factory sealed Pressure Relief Valve part 67 Dress properly Do not wear loose clothing or jewelry as they can be caught in moving parts Wear restrictive hair covering to contain long hair Do not overreach Keep proper footing and balance at all times Do not reach over or across running machines Industrial applications must follow OSHA requirements Maintain this product with care Keep this product clean for better and safer performance Maintenance For your safety service and maintenance should be performed regularly by a qualified technician 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 product Replace or repair damaged or worn parts immediately Replacement parts and accessories When servicing use only identical re placement parts Only use accessories intended for use with this product Use the right tool or attachment for the job Do
3. all the air pressure and moisture is released from the Tank retighten the Tank Drain Valve See Figure F 5 Store the Air Compressor in a clean dry location PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTUER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED 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 INSTALLATION OF REPLACEMENT PARTS THERETO SKU 90234 PAGE 13 PARTS LIST el 99 9 ame men fan 29 4A Bolt 2 Bolt 4 UJ Co Exhaust Valve Plate Spacer Holder C Exhaust Valve Plate Overload Button D Co Valve Seat Shaft Oil Seal Co Column Pin C2 Bearing 1 36A Motor Stator 36B Motor Rotor 1 Inlet Valve Plate Cylinder Up Washer W Cylinder Bearing W Cylinder Down Washer Wave Washer 10A Piston Air Ring W Ele Motor Back Cover 10B Piston Oil Ring Bolt Retaining Ring In Hole 41A Centrifugal Sw
4. for the three wire grounded power cord and grounded power supply system Avoid body contact with grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of electric shock if your body is grounded Do not expose power tools to rain or wet conditions Water entering a power tool will increase the risk of electric shock Do not abuse the Power Cord Never use the Power Cord to carry the tools or pull the Plug from an outlet Keep the Power Cord away from heat oil sharp edges or moving parts Replace damaged Power Cords immedi ately Damaged Power Cords increase the risk of electric shock PERSONAL SAFETY Stay alert Watch what you are doing and use common sense when oper ating a power tool Do not use a power tool while tired or under the influ ence of drugs alcohol or medication A moment of inattention while operat ing power tools may result in serious personal injury SKU 90234 PAGE 3 10 11 12 13 14 19 16 17 18 19 20 Dress properly Do not wear loose clothing or jewelry Contain long hair Keep your hair clothing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in moving parts Avoid accidental starting Be sure the Power Switch is off before plugging in Carrying power tools with your finger on the Power Switch or plugging in power tools with the Power Switch on invites accidents Remove adjusting k
5. not attempt to force a small tool or attachment to do the work of a larger industrial tool or attachment There are certain applications for which this product was designed It will do the job better and more safely at the rate for which it was intended Do not modify this product and do not use this product for a purpose for which it was not in tended To extend the life of your air tools and equipment Itis recommended to install a water filter and oiler available from Harbor Freight Tools in series with the Air Outlet Valve part 69 of the Air Compressor See Figure C next page SKU 90234 PAGE 8 22 A WARNING People with pacemakers should consult their physician s before using this product Operation of electrical equipment in close proximity to a heart pacemaker could cause interference or failure of the pacemaker 23 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 AIR OUTLET VALVE 69 arn ECH TRI Org e e e OK TO e AIR TOOL WATER OILER FILTER FIGURE C UNPACKING When unpacking check to make sure all the parts shown on the Parts List on pages 14 and 15 are included If any parts are missing or broken please call Harbor Freight Tools at the number shown
6. on the cover of this manual as soon as possible OPERATING INSTRUCTIONS NOTE For additional information regarding the parts mentioned in the following pages refer to the Assembly Diagram on page 16 1 IMPORTANT Always fill the Air Compressor with a premium quality SKU 90234 PAGE 9 30 weight non detergent compressor oil before each use Running the Air Compressor with no oil or low oil will cause damage to the equipment and void the warranty To check the level of oil make sure the Air Compressor is OFF Then observe the Oil Level Window part 72 The level of oil should just reach the horizontal line as shown on the Oil Level Window If the level of oil is below the horizontal line remove the Oil Plug part 78 and add new oil through the Oil Plug hole Make sure not to overfill The Air Compressor is designed to hold approximately 25 fluid ounces of oil Then screw in the Oil Plug being careful not to strip the threads See Figure D OIL PLUG 78 OIL LEVEL WINDOW 72 PRESSURE RELIEF VALVE 67 FIGURE D 2 Turn the Air Outlet Valve part 69 to its CLOSED position Then connect a high pressure air hose not included equipped with a quick connector to the Air Outlet Valve If using a water filter and oiler in series with the Air Outlet Valve of the Air Compressor connect the other end of the air hose to the water filter and oiler and connect the water filter and oiler to the air tool being used
7. CENTRAL PNEUMATIC COMPRESSOR 4 HP 10 GALLON Model 90234 OPERATING INSTRUCTIONS 3491 Mission Oaks Blvd Camarillo CA 9301 1 Visit our Web site at http www harborfreight com Copyright 2003 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 PRODUCT SPECIFICATIONS tem Description n 4 HP Peak 3 HP Rated 120 V 60 Hz Electrical Requirements 3400 RPM Two Capacitor Motor Thermal Overload Protection Maximum PSI 115 PSI Air Delvenne 4 5 SCFM 115 PSI 5 6 SCFM 90 PSI 6 2 SCFM 70 PSI 7 2 SCFM 40 PSI Air Tank Capacity 10 Gallons Automatic Shut Off Automatic Shut Off 115 PSI Automatic Restart Automatic Restart 85 PSI Oil Capacity 25 35 Ounces Air Outlet Size 1 4 18 NPT Male Threads SAVE THIS MANUAL You will need this manual for the safety warnings and precautions assembly operating inspection maintenance and cleaning procedures parts list and as sembly 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 RULES Z WARNING READ AND UNDERSTAND ALL INSTRUCTIONS Failure to follow all instructions listed below may result in electr
8. and any other condition that may affect the tool s operation If damaged have SKU 90234 PAGE 4 the tool serviced before using Many accidents are caused by poorly maintained tools 21 Use only accessories that are recommended by the manufacturer for your model Accessories that may be suitable for one tool may become hazardous when used on another tool 22 Tool service must be performed only by qualified repair personnel Service or maintenance performed by unqualified personnel could result in a risk of injury 23 When servicing a tool use only identical replacement parts Follow instructions in the Inspection Maintenance And Cleaning section of this manual Use of unauthorized parts or failure to follow maintenance instructions may create a risk of electric shock or injury WARNING Improperly connecting the grounding wire can result in the risk of electric shock Check with a qualfified electrician if you are in doubt as to whether the outlet is properly grounded Do not modify the power cord plug provided with the tool Never remove the grounding prong from the plug Do not use the tool if the power cord or plug is damaged If damaged have it repaired by a service facility before use If the plug will not fit the outlet have a proper outlet installed by a qualified electrician GROUNDED TOOLS TOOLS WITH THREE PRONG PLUGS 1 Tools marked with Grounding Required have a three wire cord and three prong ground
9. ch The Air Compressor will turn on automatically when the air pressure drops to 85 PSI as indicated on the Tank Pressure Gauge part 65 and will turn off auto matically when the air pressure reaches 115 PSI as indicated IMPORTANT The internal pressure switch is adjustable but changes to the air pressure levels should not be done Any change to the automatic pressure levels will cause additional stress on the motor which may result in shortened motor life and will void the warranty See Figure F SKU 90234 PAGE 11 8 Turn the Pressure Regulator part 70 counterclockwise to increase the amount of compressed air to the air tool being used from 90 PSI to 115 PSI Turn the Pressure Regulator clockwise to decrease the amount of compressed air See Figure F 9 NOTE If it is necessary to quickly depressurize the Air Compressor turn off the Air Compressor by pushing DOWN on the On Off Pressure Switch part 66 Then pull OUT on the ring on the Pressure Relief Valve part 67 to quickly release stored air pressure See Figure D 10 When finished using the Air Compressor turn it off by pushing DOWN on the On Off Pressure Switch part 66 Unplug the Power Cord part 64 from its electrical outlet Squeeze the trigger on the air tool being used to release all stored air pressure from the system and disconnect the air hose and air tool from the Air Compressor Then open the Tank Drain Valve part 59 to release all
10. eys or wrenches before turning the power tool on A wrench or a key that is left attached to a rotating part of the power tool may result in personal injury Do not overreach Keep proper footing and balance at all times Proper footing and balance enables better control of the power tool in unexpected situations Use safety equipment Always wear eye protection Dust mask non skid Safety shoes hard hat or hearing protection must be used for appropriate conditions TOOL USE AND CARE Do not force the tool Use the correct tool for your application The correct tool will do the job better and safer at the rate for which it is designed Do not use the power tool if the Power Switch does not turn it on or off Any tool that cannot be controlled with the Power Switch is dangerous and must be replaced Disconnect the Power Cord Plug from the power source before making any adjustments changing accessories or storing the tool Such preventive safety measures reduce the risk of starting the tool accidentally Store idle tools out of reach of children and other untrained persons Tools are dangerous in the hands of untrained users Maintain tools with care Keep cutting tools sharp and clean Properly maintained tools with a sharp cutting edge are less likely to bind and are easier to control Do not use a damaged tool Tag damaged tools Do not use until repaired Check for misalignment or binding of moving parts breakage of parts
11. ic shock fire and or serious injury SAVE THESE INSTRUCTIONS WORK AREA Keep your work area clean and well lit Cluttered benches and dark areas invite accidents SKU 90234 PAGE 2 REV 04 04 Do not operate power tools in explosive atmospheres such as in the presence of flammable liquids gases or dust Power tools create sparks which may ignite the dust or fumes Keep bystanders children and visitors away while operating a power tool Distractions can cause you to lose control Protect others in the work area from debris such as chips and sparks Provide barriers or shields as needed ELECTRICAL SAFETY Grounded tools must be plugged into an outlet properly installed and grounded in accordance with all codes and ordinances Never remove the grounding prong or modify the plug in any way Do not use any adapter plugs Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded If the tools should electrically malfunction or break down grounding provides a low resistance path to carry electricity away from the user Double insulated tools are equipped with a polarized plug one blade is wider than the other This plug will fit in a polarized outlet only one way If the plug does not fit fully in the outlet reverse the plug If it still does not fit contact a qualified electrician to install a polarized outlet Do not change the plug in any way Double insulation O eliminates the need
12. ing plug The plug must be connected to a properly grounded outlet li the tool should electrically malfunction or break down grounding provides a low resistance path to carry electricity away from the user reducing the risk of elec tric shock See Figure A next page 2 The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the tool The green wire in the cord must be the only wire connected to the tool s grounding system and must never be attached to an electrically live terminal See Figure A SKU 90234 PAGE 5 di Your tool must be plugged into an appropriate outlet properly installed and grounded in accordance with all codes and ordinances The plug and outlet should look like those in the following illustration See Figure A FIGURE A DOUBLE INSULATED TOOLS TOOLS WITH TWO PRONG PLUGS 4 Tools marked Double Insulated do not require grounding They have a special double insulation system which satisfies OSHA requirements and complies with the applicable standards of Underwriters Laboratories Inc the Canadian Standard Association and the National Electrical Code See Figure B 5 Double insulated tools may be used in either of the 120 volt outlets shown in the following illustration See Figure B FIGURE B SKU 90234 PAGE 6 SYMBOLOGY Double Insulated Canadian Standards Association Underwriters Laboratories Inc V ms Volts Alter
13. itch Plate N A UJ Piston Centrifugal Switch 1 43 Centrifugal Seat Washer 1 W Piston Pin A Connect Rod Wu A A Crankcase Centrifugal Cover Crankshaft Bolt A N In Six Angle Bolt Fan co Rubber Washer A Retaining Ring In Shaft ech sch O O Ring Bolt 2 O Bolt A A A W co N O Wu A Bolt 2 Starting Capacitor 1 50 Air Tank 1 SKU 90234 PAGE 14 PARTS LIST CONTINUED m 999 9 De o9 9 e eem e RR SR m penne amano e m eR m eem med m E p p m CN e fem T hb be fp o fees CI fe hene p SKU 90234 PAGE 15 ASSEMBLY DIAGRAM Sued 1ueujeoe doi se Ajjenpialput ajgeyiene jou ale pue Ajuo sesodund uoneysnjji 10 UMOUS pue pelsi ale syed eulos 1310 SE ei dp N Vr PAGE 16 SKU 90234
14. nating Current No Load Revolutions Der Minute RPM SPECIFIC SAFETY RULES 1 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 this product in areas near flammable chemicals dusts and vapors 2 Maintain labels and nameplates on the Air Compressor These carry important information If unreadable or missing contact Harbor Freight Tools for a replacement 3 Use eye and hearing protection Always wear ANSI approved safety impact eye goggles and hearing protectors when using this product 4 Do not allow children to use or play with this product 5 Store idle equipment When not in 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 6 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 T Make sure to fill the Air Compressor with a premium quality 30 weight non detergent compressor oil before each use Running the Air Compressor with no oil or low oil will cause damage to the equipment and void the warranty SKU 90234 PAGE 7 10 11 12 13 15 16 17 18
15. remaining compressed air from the Air Tank part 50 See Figure F 11 NOTE The Air Compressor is equipped with an internal overload device Should the Air Compressor overheat while in use the machine will automatically shut down If this happens push DOWN on the On Off Pressure Switch part 66 Wait five to ten minutes Press the Overload Button part 31 Then pull UP on the On Off Pressure Switch to restart the Air Compressor See Figure G FIGURE G 1 OVERLOAD BUTTON 31 SKU 90234 PAGE 12 INSPECTION AND MAINTENANCE A WARNING Always unplug the Air Compressor from its electrical outlet before performing any inspection maintenance or cleaning 2 Before each use Inspect the general condition of the Air Compressor Check for misalignment or binding of moving parts cracked or broken parts damaged wiring damaged air hose and any other condition that may affect its safe opera tion If abnormal noise or vibration occurs have the problem corrected before further use Do not use damaged equipment 3 Daily Make sure the level of compressor oil is adequate For instructions on checking and if necessary filling the Air Compressor with oil see pages 9 and 10 of this manual 4 Daily Purge the Tank part 50 daily of all air and moisture to prevent corro sion To do so unscrew the Tank Drain Valve part 59 two to three turns Do not unscrew the Tank Drain Valve more than three turns When
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