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Ingersoll-Rand 7870-F-( ) manual

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Table of contents for the manual

  • Page 1

    Tool Products OPERATOR’S MANUAL INCLUDING: OPERATION, INSTALLATION & MAINTENANCE SECTION M10 MANUAL 58 Released: 5/79 Revised: 3-10-95 “2200” SERIES SHORT GRINDERS Models: 7870-F-( ), 7871-F-( ), 7872-F and 7873-F. Form: 1558-2 READ THIS MANUAL CAREFULLY BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT. FAILURE TO OBSERVE THE FOLL[...]

  • Page 2

    FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY. Turn off air supply and disconnect air supply hose before installing, removing or adjusting any accessory on this tool, or before performing any maintenance on this tool. Do not carry the tool by the hose. Do not overreach when operating this tool. Keep body stance balanced and firm.[...]

  • Page 3

    ROUTINE LUBRICATION REQUIREMENTS M10 58 Lack of or an excessive amount of lubrication will affect the perfor- mance and life of this tool. Use only recommended lubricants at below time intervals: EVERY 8 HOURS OF TOOL OPERATION - Fill lubricator reser- voir of recommended F.R.L. with spindle oil (29665). if an in line or air line lubricator is not [...]

  • Page 4

    MODEL IDENTIFICATION The grinder models listed in the model identification table above are furnished with collet assembly 41753-o as standard equipment and are intended for use with mounted Wheels and shall not be used with other type grinding wheels unless a proper wheel guard, recommended by the grinder manufacturer is attached to the grinder. Se[...]

  • Page 5

    GRINDING WHEEL MOUNTING INSTRUCTIONS M10 Disconnect air supply from grinder or shut off air supply and exhaust (drain) air line of compressed air before mounting or removing any abrasive wheel or wire brush, or otherwise performing maintenance or service to the tool. Check abrasive wheels prior to mounting for chips or cracks. Cracked or wheels sha[...]

  • Page 6

    DISASSEMBLY AND ASSEMBLY OF TOOLS Disconnect air supply from tool or shut off air supply and exhaust (drain) line of compressed air BEFORE performing maintenance or service to tool. Before starting to disassemble or assemble this tool (any part or completely), be sure to read “Inspection, Maintenance and Instal- lation” section, To minimize the[...]

  • Page 7

    TYPICAL CROSS SECTION OF TOOL Ml0 58 7[...]

  • Page 8

    MOTOR SECTION DISASSEMBLY Remove motor assembly from housing as outlined on page 6. Remove retaining nut (33694). Grasp cylinder in one hand and tap threaded end of rotor with a soft face hammer; motor will come apart. ASSEMBLY NOTE: Pack bearings with ARO 33153 grease and coat i.d. of cyl- inder with ARO 29665 spindle oil upon assembly. Assemble t[...]

  • Page 9

    HEAD SECTION Ml0 DISASSEMBLY ASSEMBLY 58 Remove nut (36776) and valve components can be removed from head. Lubricate “0” ring (Y325-7) with ARO 38460 lubricant and as- semble to valve stem. Assemble valve stem, spring (32656), reg- ulator and seal (36781) to head and secure with nut (36776). NOTE: Align notch (or hole) in side of regulator with[...]

  • Page 10

    HEAD SECTION DISASSEMBLY Remove nut (36778) and valve components can be removed from head. To remove throttle button (36745), remove roll pin (Y178-212). ASSEMBLY Lubricate “0” ring (Y326-7) with ARO 36460 lubricant and as- semble to valve stem. Assemble valve stem, spring (32858), reg- ulator and seal (36781) to head and secure with nut (36776[...]

  • Page 11

    ACCESSORIES 41753-( ) 3-PIECE COLLET ASSEMBLY COLLETNUT-41751 COLLET BODY - 41752 COLLET NUT DIA. - 3/4” COLLET BODY DIA. - 21/32” 3/8” - 24 THREAD 0VER ALL LENGTH - 2 1/4” 44127-( ) ERICKSON 3-PIECE COLLET ASSEMBLY M10 58 33226-( ) 3-PIECE COLLET ASSEMBLY COLLET NUT - 33220 COLLET BODY - 32218 COLLET NUT DIA. - 15/16” CUP RING - 33221 CO[...]

  • Page 12

    TROUBLE SHOOTING LISTED BELOW ARE SOME OF THE MOST COMMON CAUSES FOR THE GRINDER TO MALFUNCTION. MALFUNCTIONS BEYOND THE SCOPE OF THIS MANUAL SHOULD BE BROUGHT TO THE ATTENTION OF YOUR ARO REPRESENTATIVE OR RETURN THE TOOL TO THE FACTORY FOR REPAIR. CONDlTlON LOW SPEED AND POWER OR GRIND- ER WILL NOT RUN. THROTTLE VALVE HARD TO OPERATE. TOOL WILL N[...]