Ingersoll-Rand 8274-A, 8276-A User Manual

SECTION M40

Tool & Hoist Products

OPERATOR’S MANUAL

INCLUDING: OPERATION, INSTALLATION & MAINTENANCE

2200 SERIES POWER MOTORS

(44 SERIES GEARING)

MANUAL 46 Released: 4/73

Revised: 8-2-93 Form: 286-2

Models 8274-( )A and 8276-( )A

IMPORTANT: READ THIS MANUAL CAREFULLY BEFORE INSTALLING,

OPERATING OR SERVICING THIS EQUIPMENT.

INDEX MODEL IDENTIFICATION GENERAL DESCRIPTION AND OPERATION AIR AND LUBE REQUIREMENTS MAINTENANCE DISASSEMBLY AND ASSEMBLY DIMENSIONAL DATA

For parts and service information, contact your local ARO distributor, or the Customer Service Dept. of the Ingersoll-Rand Distribution Center, White House, TN at PH: (615) 672-0321, FAX: (615) 672-0601.

ARO Tool & Hoist Products Ingersoll-Rand Company

1725 U.S. No. 1 North l P.O. Box 8000 0 Southern Pines, NC 28388-8000

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PROFESSIONALTOOLS

PAGE

1 2

3 thru 8

MODEL lDENTlFlCATlON

MODEL

NO.

8274-A 41523 I 800 8274-l A 41523 475 8274-2A 41523 250 8274-3A 41523 200 8274-4A 41523 120 8274-5A 41523 65

MOTOR

ASS’Y:

fORWARD(REVERSF

R.P.M. GEARING

(FREE SPEED) “2200”

“44” SERIES

DRIVE AUXILIARY

SERIES

41305 36162 34497 41305 36163 34497 41002 36163 34497 41305 36162 36165 34497 41305 36163 36165 34497 112:1 41305 36163 36164 34497 196:1

HEAD TOTAL

ASS’Y.

REDUCTION

16:1 28:1 52: 1 64:1

8276-4A 41522 160 8276-5A 41522 100 8276-6A

41522 50

41305 36163 36165 34498 112:1 41305 36163 36164 34498 196:1

41002 36163 36164 34498 364: 1

OPERATORS MANUAL

This Parts List and Service Instruction Manual is composed of four sections:

GENERAL DESCRIPTION AND OPERATION AIR AND LUBE REQUIREMENTS MAINTENANCE DISASSEMBLY AND REASSEMBLY OF TOOL

GENERAL DESCRIPTION AND OPERATION

The ARO Models 8274-(

)A and 8276-(

feature “2200” series motors with “44” series gearing.

Models 8274-(

)A are reversible rotation models with a

balanced cylinder which produces the same power in either forward or reverse rotation. Models 8276-( direction models.

)A Power Motors

)A are single

AIR AND LUBE REQUIREMENTS

AIR PRESSURE of 90 pounds per square inch at the air inlet of the tool is required for maximum motor efficiency. If necessary, an air regulator should be installed to maintain this pressure when tool is in operation.

FILTERED AND OILED AIR will allow the tool to operate more efficiently and yield a longer life to operating parts and mechanisms. A line filter capable of filtering particles larger than 50 microns should be used with a line oiler.

FILTER-REGULATOR-LUBRICATOR (F-R-L) assembly Model 128231-300 is recommended for use with this Air

Tool. The capacity of the individual Filter-Lubricator is adequate to provide clean (40 micron) oiled and regulated air for the tool. The Filter-Regulator-Lubricator must be installed on the stationary air line, in that order, with the Lubricator nearest to the tool. NEVER mount the unit on

the detachable flexible hose to the tool. FLUSH TOOL with a solution of three parts cleaning solvent and one part light oil after each 40 hours of operation. After flushing, apply a small amount of Spindle Oil in air inlet and run free for one minute to insure proper

lubrication. GEARING should be grease lubricated to a minimum of

once a month.

MAINTENANCE

DISCONNECT AIR SUPPLY from tool or shut off air supply and exhaust (drain) line of compressed air BEFORE performing maintenance or service to tool.

AIR TOOLS are made of precision parts and should be handled with reasonable care when servicing. Excessive pressure exerted by a holding device may cause distortion of a part. Apply pressure evenly when disassembling (or assembling) parts which have a press fit. When removing or installing bearings, apply pressure to the bearing race that will be the press fit to the mating part; if this is not practiced, Brinelling of the bearing races may occur making replacement necessary. It is important that the correct tools and fixtures are used when servicing this Air Tool.

DISASSEMBLY should be done on a clean work bench with a clean cloth spread to prevent the loss of small parts. After disassembly is completed; all parts should be thoroughly washed in a clean solvent, blown dry with air and inspected for wear levels, abuse and contamination. Double sealed or shielded bearings should never be placed

A complete Parts List will be found on the various drawings

contained in this Manual. This Manual is provided to serve as an aid in obtaining the maximum service from this tool. After carefully reading this manual, file for future reference.

All models have an adjustable exhaust manifold with muffler, flush fittings for lubrication, l/4” female n.p.t.f. air inlet and optional air inlets at end of side of head housing with necessary hex socket screw plugs for closure of unused inlets.

CAUTION: An excessive amount of lubricant in a tool will affect the speed and power, “2200” gearing should contain approx. l/4 ounce of grease

contain approx. l/2 ounce of grease (per set of plane-

tary gearing). RECOMMENDED HOSE SIZE - 3/8” nominal inside diameter.

RECOMMENDED LUBRICANTS: Spindle Oil (29665), 1 qt. (.9 liter) container for oiler and air inlet; Grease 33153, 5 lb. (2.3 kg) can for gears and bearings; “O” Ring Lubricant 36460, 4 oz. (113 g) tube for lubrication and installation of “0” Rings: Grease 40036-1, 1 lb. (.45 kg) can for Clutch Mechanism and Hammer parts.

in solvent unless a good method of re-lubricating the bearing is available. Open bearings may be washed but should not be allowed to spin while being blown dry. When

REPLACEMENT PARTS are necessary, consult drawing

containing the part for identification. BEFORE REASSEMBLING, lubricate parts where

required. Use 33 153 Grease, or equivalent, in bearings. Use 36460 Lubricant for “0” Ring Assembly. When assembling “0” rings or parts adjacent “0” rings, care must be exercised to prevent damage to the rubber sealing surfaces. A small amount of grease will usually hold steel balls and other small parts in place while assembling.

WHEN ORDERING PARTS, be sure to list PART

NUMBER, PART NAME, MODEL NUMBER AND

SERIAL NUMBER OF TOOL. USE ONLY GENUINE

ARO REPLACEMENT PARTS.

and “44” gearing

MODEL 128231-300

FILTER-REGULATOR-

GAUGE-LUBRICATOR.

should

FORM 286-2

-2-

DISASSEMBLY AND REASSEMBLY OF TOOLS

Before starting to disassemble or reassemble this tool (any part or completely) be sure to read Maintenance Section.

To minimize the possibility of parts damage and for convenience, the steps for disassembly or reassembly listed on the following pages are recommended.

The basic sections and instructions for removing them from tool are as follows:

With tool disconnected from air service-

GEARING SECTION

To remove drive gearing, remove Nuts (Y109-428) and Cap Screws (Y157-42-C). To remove auxiliary gearing, remove Nuts (Y109-428) and Cap Screws (Y157-43-C). Pull gearing from tool.

TYPICAL CROSS-SECTION OF TOOL

To remove (Y154-55) with Washers (Y14-10) and separate Motor Housing and Adapter (41001). Pull gearing from tool.

To remove Motor assembly, remove Cap Screws (Y154-55) with Washers (Y 14-10) and pull Motor Housing from gearing. Grasp Rotor and pull motor assembly from housing.

To remove head from motor section; place head of tool in a suitable holding device and, using a strap wrench, unscrew motor housing from head.

“2200” series gearing, remove Cap Screws

MOTOR SECTION

HEAD SECTION

-3-

FIGURE 1

+ 8 hidden pages