AIR COMPRESSOR 2.5 HP - 8 GALLON 90385 ASSEMBLY AND OPERATING INSTRUCTIONS 3491 MISSION OAKS BLVD., CAMARILLO, CA 93011 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.
SPECIFICATIONS Item Power Consumption Motor Pump Tank Air Outlet Size Pressure Gauge SCFM Features Weight Description 120 VAC, 60 Hz 2.5 HP (rated), 3400 RPM; 2 capacitor motor Single stage, oil lubrication 8 gallon capacity; Cut-in pressure: 90 PSI, Cutout pressure: 120 PSI 1/4 Inch - 18 NPT 0 ~ 200 PSI (CSA approved) 4.5 SCFM @ 115 PSI, 5.6 SCFM @ 90 PSI, 6.2 SCFM @70 PSI, and 7.25 SCFM @ 40 PSI Overload protection Clear view oil window 65 lbs.
Electrical Safety 4. 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. 5. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. 6. 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.
14. Use safety equipment. Always wear eye protection. Dust mask, nonskid safety shoes, hard hat, or hearing protection must be used for appropriate conditions. Tool Use and Care 15. Use clamps (not included) or other practical ways to secure and support the workpiece to a stable platform. Holding the work by hand or against your body is unstable and may lead to loss of control. 16. Do not force the tool. Use the correct tool for your application.
SPECIFIC SAFETY RULES FOR THIS PRODUCT 1. Maintain labels and nameplates on the Air Compressor. These carry important information. If unreadable or missing, contact Harbor Freight Tools for a replacement. 2. 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 a power tool in areas near flammable chemicals, dusts, and vapors.
GROUNDING 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.
SYMBOLOGY Table B UNPACKING When unpacking, check to make sure that all the parts are included. Refer to the Assembly section, and the Assembly Drawing and Parts List at the end of this manual. If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual as soon as possible. In addition, this unit is packed with a rubber block to help prevent damage to the Motor Cover (82) during shipment, shown below.
ASSEMBLY INSTRUCTIONS Warning: Fill compressor with oil before using; running without oil, or with low oil voids warranty. Do not plug in the Air Compressor until you are ready to use it, as set forth below. Adding Oil 1. Unscrew (do not pull) the Oil Plug (79). (See Figure C.) 2. Check the level of the oil by viewing the Oil Leveler (72) window (below the Oil Plug). Note: Fill the oil tank with approximately 25 ounces of oil. 3.
OPERATING INSTRUCTIONS Turning Compressor On 1. Plug the power cord into an electrical outlet with a grounding prong. 2. Pull up on the Auto/Off Pressure Switch (66) to turn on. Push down on the Switch to shut off. 3. Allow the Tank to fill to 80 PSI before using. With the Air Compressor turned on, operation is automatic and under the control of the internal pressure switch.
Empty Air and Condensation The water Spill Valve (59) is located underneath the Air Tank. It must be used daily to release all trapped moisture through this valve. It will also get rid of any condensation that may cause tank corrosion. Warning: Do not open the water Spill Valve (59) so that more than four threads are showing. 1. Push down on the Auto/Off Pressure Switch (66) to turn the compressor off. 2. Unscrew the water Spill Valve (59) two to three turns. INSPECTION, MAINTENANCE, AND CLEANING 1.
PARTS LIST Part # 1 2 3 4A 4B 4C 4D 5 6 7 8 9 10A 10B 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 34 35 36A 36B 37 38 39 40 40A 41A 41B 41C Description BOLT CYLINDER HEAD CYLINDER HEAD WASHER BOLT EXHAUSE VALVE PLATE SPACING EXHAUSE VALVE PLATE VALVE SEAT COLUMN PIN INLET VALVE PLATE CYLINDER UP WASHER CYLINDER CYLINDER DOWN WASHER PISTON AIR RING PISTON OIL RING RETAINING RING IN HOLE PISTON PISTON PIN CONNECT ROD CRANKCASE CRANKSHAFT IN-SIX ANGLE BOLT RUBBER WASHER O RING BOLT STARTING C
ASSEMBLY DRAWING SKU 90385 For technical questions, please call 1-800-444-3353.
