Harbor Freight Tools 94355 Air Compressor User Manual
Contents
1. and after each use Always wear ANSI approved eye protection Do not operate with supplied guards removed or damaged 6 RISK OF ELECTRIC SHOCK Do not expose to rain store this item indoors in a dry location WORK AREA 1 Keep your work area clean and well lit Cluttered benches and dark areas invite accidents presence of flammable liquids gases or dust Power tools create 2 Do not operate power tools in explosive atmospheres such as in the sparks which may ignite the dust or fumes 3 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 SKU 94355 For technical questions please call 1 800 444 3353 PAGE 3 PERSONAL SAFETY 1 Stay alert Watch what you are doing and use common sense when operating a power tool Do not use a power tool while tired or under the influence of drugs alcohol or medication A moment of inattention while operating power tools may result in serious personal injury 2 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 3 Avoid accidental starting Be sure the Pressure Switch 57 is in its OFF position before moving the Compressor and before performing any service m2. 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 RULES AND PRECAUTIONS J N WARNING READ AND UNDERSTAND ALL INSTRUCTIONS Failure to follow all instructions listed below may result in electric shock fire and or serious injury SAVE THESE INSTRUCTIONS SAFE OPERATION 1 RISK OF FIRE OR EXPLOSION Do not spray flammable liquid in a confined area or towards a hot surface Spray area must be well ventilated Do not smoke while spraying or spray where spark or flame is present REV 11 06 SKU 94355 For technical questions please call 1 800 444 3353 PAGE 2 2 ARCING PARTS Keep compressor at least 20 feet away from explosive vapors such as when spraying with a spray gun 3 IF CONNECTED TO A CIRCUIT PROTECTED BY FUSES Use time delay Marked D fuses with this item Connect to a dedicated power sources see serial plate for proper voltage Check oil level in the compressor before each use and fill accordingly 4 RISK OF BURSTING Do not adjust the regulator to result in output pressure greater than marked maximum pressure of attachment air tools etc 5 RISK OF INJURY Do not direct air stream at anyone s body Do not use compressed air for breathing Unplug the power cord and drain all air pressure from the tank before servicing
3. to release any remaining compressed air in the Air Tank 3 of the Compressor See Figure D 8 Squeeze the trigger of the pneumatic tool being used to release any remaining compressed air in the air hose and tool Then disconnect the air hose from the tool and from the Air Compressor 9 Slightly unscrew no more than 4 turns the water Drain Valve 4 to release any water condensation from the Air Tank 3 Then retighten the Drain Valve See Figure E 10 Allow the Air Compressor to completely cool down Then make sure to store the unit in a clean dry safe location out of reach of children and other unauthorized people ATTENTION This air compressor is designed for intermittent use To help prolong the life of your air compressor it is recommended to allow a 30 minute cooling time between every half an hour of use This product is not under warranty for Commerical purposes INSPECTION MAINTENANCE AND CLEANING 1 A CAUTION Always make sure the Pressure Switch 57 of the Air Compres sor is in its OFF position and the unit is unplugged from its electrical outlet prior to performing any service maintenance or cleaning of the Compressor 2 Before each use inspect the general condition of the Air Compressor Check for loose screws misalignment or binding of moving parts cracked or broken parts damaged electrical wiring loose air fittings and any other condition that may affect the safe operation of the Compre
4. unit is under pressure Do not force the Compressor This tool will do the work better and safer at the speed and capacity for which it was designed This Compressor will automatically shut off on overload or under excessive heat Should this occur turn the Pressure Switch 57 to its OFF position Wait until the Compressor cools Then turn the Pressure Switch to its ON position to resume work A WARNING This product contains brass which is a chemical known to the State of California to cause cancer and birth defects and other reproductive harm California Health amp Safety Code 25249 5 et seq 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 to or failure of the pacemaker A WARNING The warnings and precautions discussed in this manual cannot cover all possible conditions and situations that may occur It must be under stood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator SAVE THESE INSTRUCTIONS SKU 94355 For technical questions please call 1 800 444 3353 PAGE 6 WARNING Improperly connecting the grounding wire can result in the risk of electric shock Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded Do not modify the power c
5. CENTRAL PNEUMATIC ee WY OILLESS AIR COMPRESSOR 8 GALLON CAPACITY Model 94355 ASSEMBLY AND OPERATING INSTRUCTIONS Due to continuing improvements actual product may differ slightly from the product described herein Distributed Exclusively by TO PREVENT SERIOUS INJURY READ AND UNDERSTAND ALL WARNINGS AND INSTRUCTIONS BEFORE USE 3491 Mission Oaks Blvd Camarillo CA 93011 Visit our Web site at http Awww harborfreight com Copyright 2006 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 Electrical Requirements 120 V 60 Hz 13 Amp 2 HP Rated 3 HP Peak Power Cord Type 16 Gauge x 3 C x 6 Long Power Plug Type 3 Prong Grounded Fuse Size 15 AMP Buss Fuse Switch Type Rotary On Off Switch Pressure On 85 PSI Pressure Off 125 PSI 6 0 CEM 40 PSI 4 CFM 90 PSI C US Outlet Thread 235309 Pressure Gauge Measures 0 230 PSI in 20 PSI Increments 0 16 KG CM in 2 BAR Increments Additional Features Thermal Overload Protection Steel Tube Handle Rubber Wheels Brass Valve Tank Drain Single Cylinder Pump Unit Weight 51 Pounds SAVE THIS MANUAL You will need this manual for the safety warnings and precautions assembly operating inspection maintenance and
6. Regulator Knob enables the operator to adjust output pressure to the pneumatic tool being used To increase the amount of air pressure to the tool turn the Pressure Regulator Knob clock wise To decrease the amount of air pressure to the tool turn the Pressure Regulator Knob counterclockwise See Figure D 5 Tool Pressure Gauge 13 The Tool Pressure Gauge measures the pressure level of air flowing to the pneumatic tool being used and is adjustable using the Pressure Regulator Knob 14 See Figure D 6 Quick Coupler 11 The Quick Coupler connects to the air output hose which in turn connects to the pneumatic tool being used To connect an air hose push in on the Quick Coupler To disconnect the air hose pull back on the Quick Coupler collar See Figure D PRESSURE REGULATOR KNOB 14 TOOL PRESSURE __TANK PRESSURE PRESSURE SWITCH QUICK mal SAFETY VALVE FIGURE D OPERATING INSTRUCTIONS i A CAUTION Always make sure the Pressure Switch 57 of the Air Compressor is in its OFF position and the unit is unplugged from its electrical outlet prior to performing any service maintenance or changing accessories on the Compressor SKU 94355 For technical questions please call 1 800 444 3353 PAGE 10 2 Before operating make sure the Air Compressor is set up in a well ventilated area on a flat level solid surface well away from any flammable objects To Start The Compressor 1 Check to make s
7. age to drop too much Restricted air passages Back pressure in pump head Poor ventilation Dirty cooling surfaces Leaking valve Low voltage Defective pressure switch bleeder valve Air tank pressure has exceeded normal operating pressure Pressure switch is stuck Air tank pressure exceeds preset pressure switch limit Motor overload protection has been Tripped Air compressor attached to an extension cord For technical questions please call 1 800 444 3353 Do not use an extension cord Link additional air hoses together to acquire additional length Check all air passages for clogs Have a qualified service technician replace check valve and or pressure switch bleeder valve Relocate air compressor to an area with cool dry well circulated air Clean all cooling surfaces of pump and motor thoroughly Have a qualified service technician replace worn parts and re assemble with new seals Do not use an extension cord Link additional air hoses together to acquire additional length Have a qualified service technician replace defective pressure switch bleeder valve Have a qualified service technician replace pressure switch Have a qualified service technician replace pressure switch Motor will automatically start when air tank pressure drops below 85 PSI pressure of air tank Replace blown fuse or reset c
8. aintenance or cleaning procedures on the unit 4 Remove adjusting keys or wrenches before turning the Compressor on A wrench or a key that is left attached to a rotating part of the machine may result in personal injury 5 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 6 M Use safety equipment Always wear eye protection Always wear d J ANSI approved safety impact goggles when using this product ANSI approved hearing protection must also be used TOOL USE AND CARE 1 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 2 Do not use the Compressor if the Pressure Switch 57 does not turn it on or off Any tool that cannot be controlled with its pressure switch is dangerous and must be replaced 3 Store idle tools out of reach of children and other untrained persons Tools are dangerous in the hands of untrained users 4 Maintain tools with care 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 SKU 94355 For technical questions please call 1 800 444 3353 PAGE 4 5 Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect th
9. e tool s operation If damaged have the tool serviced before using Many accidents are caused by poorly maintained tools 6 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 le Tool service must be performed only by qualified repair personnel Service or maintenance performed by unqualified personnel could result in a risk of injury 2 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 SPECIFIC SAFETY RULES AND PRECAUTIONS ie Maintain labels and nameplates on the Air Compressor These carry important information If unreadable or missing contact Harbor Freight Tools for a replacement 2 A DANGER This Air Compressor is NOT equipped with and should not be used as is to supply breathing quality air For any application of air for human consumption you must fit the Air Compressor with suitable inline safety and alarm equipment not included This additional equipment is necessary to properly filter and purify the air to meet minimal specifications for Grade D breathing as described in Compressed Gas Association Commodity Specification G 7 1 1966 OSHA 29 CFR 1910 134 and or Canadian Standa
10. incidental or consequential damages so the above limitation of exclusion may not apply to you THIS EA A W WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING Ney A THE WARRANTIES OF MERCHANTABILITY AND FITNESS OY gt lt lt GA To take advantage of this warranty the product or part must be returned to us with transportation charges VIS KA prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our WA or inspection verifies the defect we will either repair or replace the product at our election or we may elect to lt gt Lh V refund the purchase price if we cannot readily and quickly provide you with a replacement We will return fund th hi ice if t readily and quickl id ith l t We will ret SY repaired products at our expense but if we determine there is no defect or that the defect resulted from Fj causes not within the scope of our warranty then you must bear the cost of returning the product I KZ J AXI KA This warranty gives you specific legal rights and you may also have other rights which vary from state to state LA f 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353 O 0 ee ee ee N ee ee ee N ee ee ee 7 ONG SG Gis SG SA SA SAS IMSS SSIS SKU 94355 For technical questions please call 1 800 444 3353 PAGE 16
11. ircuit breaker Do not use a fuse or circuit breaker with higher rating than specific for your circuit branch Check for proper fuse 15 AMP Buss fuse is acceptable Do not use an extension cord Link additional air hoses together to acquire additional length Disconnect other applications from circuit Operate air compressor on a dedi cated circuit Bleed line by moving pressure switch lever to OFF position before restarting If bleeder valve does not open replace bleeder valve Have a qualified service technician clean or replace motor PAGE 14 PARTS LIST Part Description Qty Part Description Qty 37 38 Wheel 2 40 Nut M8x40 e 7 Screw M6x35 J4 3 Hande U a 4 ALARA ALR Ne a pera per a S A S NJO rf o il Po 1 4 x 1 4 Fix Ring 1 CopperNut 2 Copper Tube _ _ _ _ M Screw M10x 25 J1 Bearing 6203 _ _ _ J3 ConnectingRod tt PistonRing i Back Plate _ _ _ OMI Hex Screw M6x 15 i Fuse O O i Upper Cover _ _ M 6 Hex Bolt M6 x 105 4 Cylinder Head __ I Exhaust i O i Washer O Oi Laaa 1 1 1 1 1 1 ol ee o 1 4 x 1 4 Tien a 1 5 8 0 6 62 63 5 0 4 5 6 7 8 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 NIN O O LLI KSLE KSI KSILOL KU o N A O OIN O ays NOTE Some parts are listed and shown for illust
12. lated 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 Di Double insulated tools may be used in either of the 120 volt outlets shown in the following illustration See Figure B THIS PRODUCT p DOES NOT USEA 2 PRONG PLUG ha j I y P N Weep yt Web 5 i a i 2 teenie renee a 120 VOLT GROUNDED ELECTRICAL OUTLETS A E EE wa y E SYMBOLOGY fey Double Insulated Canadian Standards Association Underwriters Laboratories Inc olts Alternating Current No No Load Revolutions xxxx min per Minute RPM FIGURE C SKU 94355 For technical questions please call 1 800 444 3353 PAGE 8 UNPACKING When unpacking check to make sure all the parts shown on the Parts List on page 14 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 ASSEMBLY INSTRUCTIONS 1 A CAUTION Always make sure the Pressure Switch 57 of the Air Compressor is in its OFF position and the unit is unplugged from its electrical outlet prior to performing any assembly on this unit 2 To attach the Handle 9 to the Air Compressor align the four mounting holes in the Handle
13. ord 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 i Tools marked with Grounding Required have a three wire cord and three prong grounding plug The plug must be connected to a properly grounded outlet If 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 electric shock See Figure A 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 3 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 THIS PRODUCT USES A 3 PRONG PLUG 120 VOLT GROUNDED ELECTRICAL OUTLET FIGURE A SKU 94355 For technical questions please call 1 800 444 3353 PAGE 7 DOUBLE INSULATED TOOLS TOOLS WITH TWO PRONG PLUGS 4 Tools marked Double Insu
14. ration purposes only and are not available individually as replacement parts SKU 94355 For technical questions please call 1 800 444 3353 PAGE 15 ASSEMBLY DIAGRAM i 1 28 Fuse Not Shown Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts LYRA VEY VEY VEY VPx VE KY VY VV KYD LNI CENTRAL DY gt PNEUMATIC LIMITED 1 YEAR 90 DAY WARRANTY O gt Harbor Freight Tools Co makes every effort to assure that its products meet high quality and durability standards Po Af and warrants to the original purchaser that for a period of ninety days from date of purchase that the motor is os KA free of defects in materials and workmanship Harbor Freight Tools also warrants to the original purchaser for YZ A ary a period of one year from date of purchase that all other parts and components of the product are free from RS defects in materials and workmanship This warranty does not apply to damage due directly or indirectly to N gi 7 W A R A N TY SY misuse abuse negligence or accidents repairs or alterations outside our facilities or to lack of maintenance AX CA We shall in no event be liable for death injuries to persons or property or for incidental contingent special or VIS Hi consequential damages arising from the use of our product Some states do not allow the exclusion or limitation f YAY of
15. rds Associations CSA In the event the Air Compressor is used for the purpose of breathing air application and proper inline safety and alarm equipment is not simultaneously used existing warranties are void and Harbor Freight Tools disclaims any liability whatsoever for any loss personal injury or damage 3 Make sure all tools and equipment used with the Air Compressor are rated to the appropriate capacity Do not use any tool or equipment that does not operate from 85 PSI to 125 PSI 4 Drain the Air Compressor every day Do not allow excessive moisture to build up inside the Air Compressor Do not open the water Drain Valve 4 with more than 10 PSI of air pressure in the Compressor SKU 94355 For technical questions please call 1 800 444 3353 PAGE 5 10 11 12 13 14 Avoid injury Never direct compressed air at people or animals Make sure the Air Compressor is located on a flat level sturdy surface capable of supporting the weight of the Compressor and any additional tools and equipment Industrial applications must follow OSHA guidelines Never stand on the Air Compressor Serious injury could result if the Compressor is tipped Never leave the Air Compressor unattended when it is plugged in and running Turn off the Compressor and unplug the unit before leaving Do not allow children and other unauthorized people to handle or play with the Air Compressor Do not move or transport the Compressor if the
16. ssor If abnormal noise or vibration occurs have the problem corrected before further use Do not use damaged equipment 3 After each use open the water Drain Valve 4 under the Air Tank 3 to drain out the moisture See Figure E SKU 94355 For technical questions please call 1 800 444 3353 PAGE 12 4 To clean wipe with a damp cloth using a mild detergent Never use solvents such as thinner alcohol trichloroethylene etc to clean the Air Compressor 5 To replace the Motor Carbon Brushes It may become necessary at sometime to replace or clean the two Carbon Brushes 68 when the Motor performance decreases or stops working completely The Carbon Brushes are located on each side of the Motor Cover 46 To replace the Carbon Brushes remove the two Brush Holder Covers Remove the Brush Caps Then remove the two the two Carbon Brushes from the two Brush Holders If the Carbon Brushes are worn down more than 1 2 replace both Carbon Brushes If however the Carbon Brushes are just dirty they may be cleaned by rubbing them with a pencil eraser When installing the Carbon Brushes make sure the carbon portion of the Carbon Brushes contact the Motor s Rotor and that the springs face away from the Motor Also make sure the springs operate freely After replacement or cleaning replace the two Brush Holder Covers NOTE New Carbon Brushes tend to arc or spark when first used until they wear and conform to the Motor s Rotor See A
17. ssy Diagram 6 To replace the Fuse An indicator of a blown Fuse 28 is if its wire strand within is burnt in half When replacing the Fuse make sure to install a new 15 AMP Buss Fuse 7 Always store the Air Compressor in a clean dry safe location out of reach of children and other unauthorized people 8 A CAUTION All maintenance service or repairs not mentioned in this manual must only be performed by a qualified service technician 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 REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTURER 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 RISKS 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 94355 For technical questions please call 1 800 444 3353 PAGE 13 TROUBLESHOOTING Possible Cause Possible Solution Circuit breaker fuse trip often Overheating Motor stalls Pressure relief valve opens Motor will not run SKU 94355 1 Excessive wire length causes volt
18. ure the Air Compressor s water Drain Valve 4 is fully closed See Figure E FIGURE E DRAIN VALVE 4 2 Connect one end of the air supply hose not included to the pneumatic tool being used Then connect the other end of the hose to the Quick Coupler 11 on the Air Compressor See Figure D 3 Make sure the Pressure Switch 57 is in its OFF position Then insert the Power Cord Plug 66 into the nearest 120 volt grounded electrical outlet See Figure D 3 Turn the Pressure Switch 57 to its ON position See Figure D 4 NOTE The Compressor will automatically begin to run when the air pressure reaches 85 PSI as indicated on the Tank Pressure Gauge 13 When the maximum air pressure 125 PSI is reached the Compressor will automatically switch to idle and the Compressor will stop operating The Compressor will automatically restart when the air pressure falls below 85 PSI See Figure D 5 Allow about 15 minutes for the running Air Compressor to build up sufficient air capacity in its Air Tank 3 Then use the Pressure Regulator Knob 14 to increase or decrease the air flow to the pneumatic tool being used See Figure D SKU 94355 For technical questions please call 1 800 444 3353 PAGE 11 6 When finished using the Air Compressor turn its Pressure Switch 57 to its OFF position Then unplug the unit from its electrical outlet See Figure D T Pull the ring on the Safety Valve 10
19. with the four threaded mounting holes located at the rear of the unit Then secure the Handle in place with four Screws 7 See Page 16 3 Slide the Quick Coupler 11 towards the compressor body and insert the Air Hose 71 to the Quick Coupler 11 See Page 16 AIR COMPRESSOR CONTROLS Pressure Switch 57 The Pressure Switch turns the Air Compressor on and off When in the ON position the Pressure Switch allows the Compressor to automatically adjust to its run stage when the air pressure inside the Air Tank 3 falls below 85 PSI The Pressure Switch also automatically turns the Com pressor to its idle stage when the air pressure inside the Air Tank reaches 125 PSI Always keep the Pressure Switch in its OFF position when the unit is not in use See Figure D next page _ N Safety Valve 10 If the Pressure Switch 57 does not shut down the Motor of the Air Compressor when the pressure reaches 125 PSI the Safety Valve will automatically pop open to prevent over pressurization To operate manually pull the ring on the Safety Valve to relieve air pressure in the Air Tank 3 See Figure D next page oo Tank Pressure Gauge 13 The Tank Pressure Gauge measures the pressure level of the air stored in the Air Tank 3 and is not adjustable by the operator See Figure D SKU 94355 For technical questions please call 1 800 444 3353 PAGE 9 4 Pressure Regulator Knob 14 The Pressure
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