3” Composite Air Cut-off Tool Item 68832 Visit our website at: http://www.harborfreight.com Email our technical support at: tech@harborfreight.com Read this manual before using this product. Failure to do so can result in serious injury. Save this manual. When unpacking, make sure that the product is intact and undamaged. If any parts are missing or broken, please call 1‑800‑444‑3353 as soon as possible. Copyright© 2011 by Harbor Freight Tools®. All rights reserved.
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.
high intensity noise is able to cause hearing loss. Personal Safety a. Stay alert. Watch what you are doing and use common sense when operating the tool. Do not use the tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating the tool increases the risk of injury to persons. b. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep hair, clothing, and gloves away from moving parts.
e. Store the tool when it is idle out of reach of children and other untrained persons. A tool is dangerous in the hands of untrained users. f. Maintain the tool with care. Keep a cutting tool sharp and clean. A properly maintained tool, with sharp cutting edges reduces the risk of binding and is easier to control. g. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that affects the tool’s operation. If damaged, have the tool serviced before using.
Symbol Property or statement BPM Blows per minute CFM Cubic Feet per Minute flow SCFM Cubic Feet per Minute flow at standard conditions NPT National pipe thread, tapered NPS National pipe thread, straight WARNING marking concerning Risk of Eye Injury. Wear ANSI‑approved eye protection. WARNING marking concerning Risk of Hearing Loss. Wear hearing protection. WARNING marking concerning Risk of Respiratory Injury. Wear NIOSH‑approved dust mask/respirator.
Vibration Precautions This tool vibrates during use. Repeated or long-term exposure to vibration may cause temporary or permanent physical injury, particularly to the hands, arms and shoulders. To reduce the risk of vibration-related injury: 1. Anyone using vibrating tools regularly or for an extended period should first be examined by a doctor and then have regular medical check-ups to ensure medical problems are not being caused or worsened from use.
Functional Description Specifications Cutting Wheel Size Maximum Air Pressure Air Inlet Fitting Size Maximum Rated Speed* Air Consumption Recommended Hose Size Tool Accessories 3 IN. Diameter (not included) 90 PSI 1/4 IN. - 18 NPT Female 18,000 RPM 5 CFM @ 90 PSI 3/8 IN. Hex Key, Wrench *Maximum speed at stated maximum air pressure. Excess air pressure is hazardous and may cause the tool to exceed stated maximum speed.
Initial Tool Set Up/Assembly Read the entire Important Safety Information section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual. Air Supply To prevent serious injury from explosion: Use only clean, dry, regulated, compressed air to power this tool.
SKU 68832 A B C D E F G H For technical questions, please call 1-800-444-3353.
Page 10 For technical questions, please call 1-800-444-3353.
Operating Instructions Read the entire Important Safety Information section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Inspect tool before use, looking for damaged, loose, and missing parts. If any problems are found, do not use tool until repaired.
2. Route the air hose along a safe route to reach the work area without creating a tripping hazard or exposing the air hose to possible damage. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working. 3. Secure loose workpieces using a vise or clamps (not included) to prevent movement while working. 4. There must not be hazardous objects (such as utility lines or foreign objects) nearby that will present a hazard while working.
User‑Maintenance Instructions Procedures not specifically explained in this manual must be performed only by a qualified technician. To prevent serious injury from accidental operation: Turn off the tool, detach the air supply, safely discharge any residual air pressure in the tool, and release the throttle before performing any inspection, maintenance, or cleaning procedures. To prevent serious injury from tool failure: Do not use damaged equipment.
Troubleshooting Problem Decreased output. Possible Causes 1. Check for loose connections and make sure that air supply is providing enough air flow (CFM) at required pressure (PSI) to the tool’s air inlet. Do not exceed maximum air pressure. 2. Obstructed trigger. 2. Clean around trigger to ensure free movement. 3. Incorrect lubrication or not enough lubrication. 3. Lubricate using air tool oil according to directions. 4. Blocked air inlet screen (if equipped). 4.
Parts List and Diagram Part Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Qty Housing O-Ring, Φ36.1x32.5x1.8 Throttle Safety Lock Torsion Spring Pin, Φ2x18 Pin, Φ3x22 Air Inlet Spring Sleeve O-Ring, Φ17x14x1.5 Regulator Button O-Ring, Φ13x9x2 Muffle O-Ring, Φ8x4.8x1.6 O-Ring, Φ10.3x6.7x1.8 Valve Valve Spring O-Ring, Φ16x11x2.
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 this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase.
