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Central Pneumatic 99792 manual

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Table of contents for the manual

  • Page 1

    HEA VY -DUTY AIR CHIPPING HAMMER 99792 SET UP AND OPERA TING INSTRUCTIONS Distributed exclusively by Harbor Freight T ools ® . 3491 Mission Oaks Blvd., Camarillo, CA 9301 1 Visit our website at: http://www .harborfreight.com Read this material before using this product. Failure to do so can result in serious injury . SA VE THIS MANUAL. Copyright ?[...]

  • Page 2

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 2 CONTENTS SAFETY ALERT SYMBOL AND SIGNAL WORDS ............................. 3 IMPORT ANT SAFETY INSTRUCTIONS .......................... 3 GENERAL ........................................... 3 WORK AREA ...................................... 3 PERSONAL SAFETY .....................[...]

  • Page 3

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 3 SA VE THIS MANUAL Keep this manual for the safety warn- ings and precautions, assembly , operat- ing, 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 produc[...]

  • Page 4

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 4 tool. Distractions are able to result in the loss of control of the tool. Personal safety a. Stay alert. Watch what you are do- ing and use common sense when operating the tool. Do not use the tool while tired or under the inu - ence of drugs, alcohol, or medica- tion. A momen[...]

  • Page 5

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 5 d. Disconnect the tool from the air source before making any adjust- ments, changing accessories, or storing the tool. Such preventive safety measures reduce the risk of starting the tool unintentionally . T urn off and detach the air supply , safely discharge any residual air pr[...]

  • Page 6

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 6 Symbol Denitions Symbol Property or statement ft-lb Foot-pounds of torque BPM Blows per minute CFM Cubic Feet per Minute ow SCFM Cubic Feet per Minute ow at standard conditions NPT National pipe thread, tapered NPS National pipe thread, straight W ARNING marking concerni[...]

  • Page 7

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 7 a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to lter out microscopic particles. (California Health & Safety Code § 25249.5, et seq. ) W ARNING: The brass components of this product contain lead, a ch[...]

  • Page 8

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 8 FUNCTIONAL DESCRIPTION Specications Chipping Rate 1800 Blows per Minute Chisel Shank Diameter 1 1/16" Operating Pressure 90 PSI Air Inlet 3/8" - 18 NPT Air Consumption 20 CFM (Continuous) 10 CFM (Intermittent) Overall Length 17" Net Weight 17.5Lbs * Maximum spee[...]

  • Page 9

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 9 quick coupler , will make operation more efcient, but are not required. W ARNING! TO PREVENT SERIOUS INJUR Y FROM ACCIDENT AL OPERA TION: Do not install a female quick coupler on the tool. Such a coupler contains an air valve that will allow the air tool to retain pressure and[...]

  • Page 10

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 10 pull out the Lockcoil Spring (17) from the Retaining Sleeve (16). This spring is designed as a locking device. Then remove the Retaining Sleeve (16) from the hammer . 3. Fig. 2 Put the spring aside. Lubricate the top edge of the chisel shank chamfer with oil or light grease and [...]

  • Page 11

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 1 1 8. Fig. 5 Re-insert the Lockcoil Spring (17) all the way into the slot on the sleeve with only the triangular wire ring left outside (see Fig. 5). Pull on the chisel vigorously to make sure the chisel is securely locked into the Retain- ing Sleeve (16) before attaching the Chip[...]

  • Page 12

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 12 Chipping in a Straight line: 1. Use chalk or some other suitable writing material, mark your work surface to delineate the area you intend to chip. 2. Once the Hammer is attached to the Air Compressor as described in the instructions, place the Chisel along one of the marked lin[...]

  • Page 13

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 13 USER-MAINTENANCE INSTRUCTIONS Procedures not specically explained in this manual must be performed only by a qualied technician. TO PREVENT SERIOUS INJUR Y FROM ACCIDENT AL OPERA TION: T urn off the tool, detach the air supply , safely discharge any residual air pressure i[...]

  • Page 14

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 14 T roubleshooting Problem Possible Causes Likely Solutions Decreased output. 1. Not enough air pressure and/ or air ow . 2. Obstructed trigger . 3. Incorrect lubrication or not enough lubrication. 4. Blocked air inlet screen (if equipped). 5. Air leaking from loose housing. 6.[...]

  • Page 15

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 15 PLEASE READ THE FOLLOWING CAREFULL Y THE MANUF ACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE P ARTS LIST AND ASSEMBL Y DIAGRAM IN THIS MANUAL AS A REFERENCE T OOL ONL Y . NEITHER THE MANUF ACTURER OR DISTRIBUTOR MAKES ANY REPRESENT A TION OR WARRANTY OF ANY KIND TO THE BUYER THA T[...]

  • Page 16

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 16 ASSEMBL Y DIAGRAM[...]

  • Page 17

    SKU 99792 For technical questions, please call 1-800-444-3353. Page 17 Record Product’ s Serial Number Here: Note: If product has no serial number , record month and year of purchase instead. Note: Some parts are listed and shown for illustration purposes only , and are not avail- able individually as replacement parts. 90 Day W arranty Harbor Fr[...]