GALLON OILLESS 29SIX GALLON BELT DRIVEN AIR COMPRESSOR 68066 Model 68127 67696 SET UP AND OPERATING INSTRUCTIONS Visit our website at: http://www.harborfreight.com Read this material before using this product. Failure to do so can result in serious injury. SAVE THIS MANUAL. For technical questions or replacement parts, please call 1-800-444-3353.
STOP IMPORTANT STOP DO NOT RETURN TO STORE This unit was fully tested and inspected prior to shipment and will operate properly when instructions are followed. Refer to your owner’s manual for basic troubleshooting. To avoid unnecessary return to the store, simply call Compressor Support toll free for additional assistance. Compressor Support: 1-800-444-3353 Please have your model number and serial number available. These can be found on the data label on your product.
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GENERAL SAFETY RULES Never point any tool toward yourself or others. Keep the exterior of the air compressor dry, clean, and free from oil and grease. Always use a clean cloth when cleaning. Never use brake fluids, gasoline, petroleum-based products, or any strong solvents to clean the unit. Following this rule will reduce the risk of deterioration of the enclosure plastic.
SPECIFIC SAFETY RULES Always follow all safety rules recommended by the manufacturer of your air tool, in addition to all safety rules for the air compressor. Following this rule will reduce the risk of serious personal injury. Know your power tool. Read operator’s manual carefully. Learn its applications and limitations, as well as the specific potential hazards related to this tool. Following this rule will reduce the risk of electric shock, fire, or serious injury.
Do not adjust regulator to result in output pressure greater than marked maximum pressure of attachment. Do not use at pressure greater than the rated maximum pressure of this compressor.
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SPEED AND WIRING The no-load speed of the electric motor varies by model and specification. The motor speed is not constant and decreases under a load or with lower voltage. For voltage, the wiring in a shop is as important as the motor’s horsepower rating. A line intended only for lights cannot properly carry a power tool motor. Wire that is heavy enough for a short distance will be too light for a greater distance. A line that can support one power tool may not be able to support two or three tools.
',/33!29 /& 4%2-3 0RESSURE 3WITCH !UTOMATICALLY CONTROLS THE ON OFF CYCLING OF THE COMPRES SOR )T STOPS THE COMPRESSOR WHEN THE CUT OFF PRESSURE IN THE TANK IS REACHED AND STARTS THE COMPRESSOR WHEN THE AIR PRESSURE DROPS BELOW THE CUT IN PRESSURE 03) 0OUNDS 0ER 3QUARE )NCH -EASUREMENT OF THE PRESSURE EXERTED BY THE FORCE OF THE AIR 4HE ACTUAL PSI IS MEASURED BY A PRESSURE GAUGE ON THE COMPRESSOR 0UMP 0RODUCES THE COMPRESSED AIR WITH A RECIPROCATING PISTON CONTAINED WITHIN THE CYLINDER 2EGULATOR 0RESS
FEATURES PRODUCT SPECIFICATIONS Running Horsepower ................................................... 2 HP Air Tank Capacity...................................................... 29 gal. Air Pressure ....................................................150 PSI max. Air Delivery ......................................... 7.3 SCFM @ 40 PSI ............................................................ 5.9 SCFM @ 90 PSI Lubrication .......................................................................
FEATURES KNOW YOUR AIR COMPRESSOR PRESSURE REGULATOR KNOB See Figure 2. Before attempting to use this product, familiarize yourself with all operating features and safety rules. Use the pressure regulator knob to adjust the amount of air being delivered through the hose. REGULATOR PRESSURE GAUGE DESCRIPTION The current line pressure is displayed on the regulator pressure gauge. This pressure can be adjusted by rotating the pressure regulator knob.
ASSEMBLY ASSEMBLING THE RUBBER FOOT AND WHEELS WASHER NUT See Figure 3. Mount the rubber feet as shown in figure. Tighten firmly with an open-end wrench (not included) to secure it in position. NUT WASHER(s) RUBBER FOOT WASHER SCREW Mount the wheels as shown in figure. Tighten firmly with an open-end wrench (not included) to secure the wheels in position. WHEEL SCREW Fig. 3 ASSEMBLING THE HANDLE HANDLE See Figures 4 - 5. Lower the handle onto the compressor body, as shown in Figure 4.
ASSEMBLY PRESSURE SWITCH (ON/OFF) BREAKING IN THE PUMP See Figures 6 - 9. Check and tighten all bolts, fittings, etc. Turn the pressure regulator knob fully clockwise to open the air flow. Place the lever of the pressure switch in ‘OFF’ position and plug in the power cord. Open the drain valve completely. Place the lever of the pressure switch in ‘AUTO’ position and run the air compressor for 10 minutes to break in pump parts. Place the lever of the pressure switch in ‘OFF’ position. Close the drain valve.
OPERATION WARNING: WARNING: Do not allow familiarity with tools to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury. Your tool may require more air consumption than this air compressor is capable of providing. Check the tool manual to avoid damage to the tool or risk of personal injury.
OPERATION DRAINING THE TANK See Figures 10 - 11. To help prevent tank corrosion and keep moisture out of the air used, the tank of the compressor should be drained daily. A correct use of the drain valve: Verify that the compressor is turned off. Holding the handle, tilt the compressor toward the drain valve so that it’s set in a lower position. Open the drain valve completely. Keep the compressor tilted (figure 11) until all moisture has been removed. Drain moisture from tank into a suitable container.
MAINTENANCE CHECK THE OIL LEVEL AT REGULAR INTERVALS WARNING: See Figure 13. Place the compressor on a level and straight surface. The oil level must be between the two marks MAX and MIN on the oil sight glass (fig. 13). Changing the oil: use SAE 40 oil (for cold climates, SAE 20 is recommended). Do not mix different grade oils. If the oil changes color (whitish = presence of water; dark = overheated), it is good practice to replace the oil immediately.
MAINTENANCE When the oil has drained out, re-fit the oil drain plug (fig. 13). Fill new oil through the oil filler opening until it comes up to the required level. Do not overfill. After topping up, tighten the oil fill plug (fig. 14), making sure that there are no leaks during use. Once a week, check the oil level to assure proper lubrication. SAFETY GUARD FOR THE V-BELT Fig. 15 RETENSIONING THE V-BELT See Figures 15 - 17.
MAINTENANCE CLEANING THE INTAKE FILTER AIR FILTER See Figure 19. The intake filter prevents dust and dirt being drawn in. It is essential to clean this filter after at least every 100 hours in service. A clogged intake filter will decrease the compressor’s performance dramatically. Undo the two allen screws. You can then remove the filter from the two halves of the plastic housing, tap it to remove the dirt, blast it down with low-pressure compressed air (approx. 3 bar) and re-insert it.
TROUBLESHOOTING Problem Compressor will not run Possible Cause Loss of power or overheating No electrical power Blown shop/house fuse Shop/house breaker open Thermal overload open Pressure switch bad Tank is full of air Solution Check for proper use of extension cord Check to be sure unit is plugged in Check fuse/breaker or motor overload Replace shop/house blown fuse Reset shop/house breaker, determining why problem happened Motor will restart when cool Replace pressure switch Compressor will turn on wh
TROUBLESHOOTING Problem Air leak from the valve of the pressure switch Reduction of efficiency, frequent startup. Low pressure values The motor and/or the compressor overheat irregularly After an attempt to start the compressor, it stops due to tripping of the thermal cutout caused by forcing of the motor During operation, the compressor stops for no apparent reason When operating, the compressor vibrates and the motor emits an irregular buzzing sound.
NOTES 21
LIMITED 1 YEAR / 90 DAY WARRANTY Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that for a period of one year from date of purchase that the tank is free of defects in materials and workmanship (90 days if used by a professional contractor or if used as rental equipment).
Portable Air Compressor Model No. 68127 Replacement Parts List Ver. 2010.
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PORTABLE AIR COMPRESSOR PARTS LIST− MODEL NO. 68127 The model number will be found on a plate attached to air tank. Always mention the model number in all correspondence regarding your PORTABLE AIR COMPRESSOR or when ordering replacement parts. KEY NO.
CODE DESCRIPTION Q.TY 001 002 003 004 005 006 008 012 014 015 016 017 018 023 024 026 027 029 030 2860101 2830001 3860400 2860200 2660500 2840050 2810100 1421100 3021200 9140040 9020011 9020041 9020071 2881000 2870100 2060690 2060500 2600100 9170030 CRANKCASE....................................1 CYLINDER ........................................1 HEAD ................................................1 CRANKSHAFT..................................1 CRANKCASE BOTTOM ...................1 ASS.VALVE PLATE.....
