25 gallon, 3.5 hp air compressor 99925 Set up and Operating Instructions Distributed exclusively by Harbor Freight Tools®. 3491 Mission Oaks Blvd., Camarillo, CA 93011 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. Copyright© 2008 by Harbor Freight Tools®. All rights reserved.
NOTICE is used to address practices not related to personal injury. Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference.
an increased risk of electric shock if your body is grounded. This enables better control of the tool in unexpected situations. c. Do not expose tools to rain or wet conditions. Water entering a tool will increase the risk of electric shock. e. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts. d. Do not abuse the cord.
e. Maintain tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the tool’s operation. If damaged, have the tool repaired before use. Many accidents are caused by poorly maintained tools. f. Use the tool in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the tool for operations different from those intended could result in a hazardous situation. 5. Service a.
Save these instructions. rupter (GFCI) should also be implemented – it prevents sustained electrical shock. 13. Some dust created by power sanding, sawing, grinding, drilling, and other construction activities, contains chemicals known [to the State of California] to cause cancer, birth defects or other reproductive harm.
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 3-Prong Plug and Outlet.) 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 3-Prong Plug and Outlet.) 3.
Specifications Electrical Requirements 120 V~ / 60 Hz / 15 A Air Outlet Size Two 1/4” 18 NPT Air Pressure Auto Shut-off at 125 PSI Restart at 90 PSI Air Tank Capacity 25 Gallons Air Flow Capacity 5.3 CFM @ 40 PSI 4.0 CFM @ 90 PSI Oil Tank Capacity 1 Quart Oil Type 30W Non-Detergent Compressor Oil Sound Level 98 dB @ 3’ Motor 3.5 HP Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual. Assembly 1.
Male Connector Male Connector Tool Quick Coupler Valve Oiler Close the in-line safety valve between the compressor and the tool. 4. Connect an air hose rated to the intended PSI that will be used with the tool to the Air Connection. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working. 5. Plug the Power Cord into a grounded 120 V electrical outlet. 6. Move the Power Switch up to the ON position.
ing the air output gauge to set the right pressure range. 9. The Air Compressor will cycle up to 125 PSI before shutting off. It will start to build pressure again when the PSI of the Compressor drops to 90 PSI. 10. If the Compressor becomes too hot the circuit breaker will trip and it will shut off. If this happens; a. move the Power Switch to the OFF position; b. unplug the Air Compressor; c. wait until the Compressor cools down; d. plugging the Air Compressor back in will reset the circuit breaker; e.
Maintenance And Servicing Procedures not specifically explained in this manual must be performed only by a qualified technician. To prevent serious injury from accidental operation: Turn the Power Switch of the tool to its “OFF” position and unplug the tool from its electrical outlet before performing any inspection, maintenance, or cleaning procedures. To prevent serious injury from tool failure: Do not use damaged equipment.
Troubleshooting Problem Possible Causes Overheating 1. Poor ventilation. Compressor operates, but with low air output 2. Dirty cooling surfaces. 3. Compressor undersized for application. 1. Valve or regulator loose or leaking. 2. Valve or regulator damaged. 3. Air tank not pressurized yet. Incorrect pressure 1. Pressure gauge worn or gauge reading damaged. Likely Solutions 1. Move the compressor to an area with better air circulation. 2. Clean compressor. 3. Check air requirements of tools. 1.
PARTS LIST Part 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Description Pad Air Tank Screw Spacer Washer Bolt Pump/Motor Assembly Oil Plug Elbow Shroud Transfer Tube Grip Washer Screw Screw PARTS LIST Qty 2 1 4 4 4 4 1 1 1 1 1 1 2 2 2 Part 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Description Qty Intake Filter Check Valve Bleeder Tube Pressure Gauge Pressure Regulator Plug Safety Valve Power Switch Connector Block Quick Coupler Power Cord Bolt Pin Drain Valve Wheel 1 1 1 2 1 1 1 1 1 2 1 1 2 2 2 Record P
ASSEMBLY DIAGRAM SKU 99925 For technical questions, please call 1-800-444-3353.
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).
