Ingersoll-Rand 8521-A, 8515-A, 8506-A, 8509-A Adjustable Clutch, Clutch Adjustment, Disassembly

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DRIVE SECTION

M30

ADJUSTABLE CLUTCH

33

 

CLUTCH ADJUSTMENT

ASSEMBLY

Remove clutch assembly (36310) from tool. Place pin in hole of jaw (36318) or wrench on square end of spindle (36311) to adjust nut (36313). To adjust properly, release nut to least tension. Tight- en nut one or two positions -each click = one position. Assemble clutch to tool and test torque on fastener to be tightened. Repeat until desired torque is obtained.

DISASSEMBLY

a.Remove clutch housing (left hand threads) and bit holder as- sembly (36322) from tool. Grasp clutch assembly and pull from gearing.

b.Remove nut (36313) releasing washer (33609) clutch spring, pad (36316) pins (36317) and balls (Y16-205).

c.Remove retaining ring (37243) releasing jaw (36318) key (36319) jaw (40772) and balls (Y 16-203).

NOTE: Lubricate balls, jaw faces, bit holder shaft, pins and thrust pad with ARO 40036-1 grease when assembling clutch. Clutch assembly should contain approximately 1/8 oz. (3.5 g) of grease.

a.Assemble jaw (40772) to spindle (36311) aligning face of jaw with center of bearing groove in spindle. Assemble balls (Y16-203) into groove and slide jaw ahead to retain balls in groove.

b.Assemble key (36319) and jaw (36318) to spindle and secure with retaining ring (37243). NOTE: Assemble jaw (36318) to spindle with small hole in face of jaw facing jaw (40772).

c.Assemble balls (Y16-205), pins (36317) thrust pad (36316) clutch spring, washer (33609) and nut (36313). Adjust to de- sired tension (see “ClutchAdjustment”).

d.Assemble spring (31092) plug (31093) bit holder assembly (36322) and bit to spindle and assemble to tool. Assemble clutch housing to tool.

BALL

(16)

Y 16-203

“O” RING Y 325-8

@PIN

(6) 36317

NUT 36313

SPRING

31092,

7

q BALL (6)

Yl6-205 7 \

WASHER 336091

THRUST PLUG

310933

 

 

RETAINING

RING 37243

 

 

 

 

BIT 30320-2

JAW 8 BIT HOLDER

ASS’Y 36322

/GUIDEADAPTERIS PRESSEDINTO HOUSING SEE PAGE 14 FOR ADDlTlONAL GUIDE ADAPTERS

CLUTCH

TYPE

CLUTCH

SPRING IDENTIFICATION

ASS’Y. NO.

 

SPRING NO.

TYPE WIRE

WIRE THICKNESS

38310-l

HIGH TORQUE

37872

FLAT

.093”

x .188”

38310

MED. TORQUE

36315

FLAT

.062”

x .156”

3831 o-2

LOW TORQUE

38512

ROUND

.080” DIAMETER

PARTS MARKEDTHUS q ARE INCLUDED IN SERVICE KIT NO. 42114 AND/OR 42341, SEE PAGE 12.

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Contents Series QRT Screwdrivers OPERATOR’S ManualFailuretoobservethefollowingwarningscouldresultin Injury Recommended Lubricants Routine Lubrication RequirementsAIR Supply Requirements Typical Cross Section of Tool Disassembly and Assembly of ToolsModel Identification Disassembly Adjustable ClutchClutch Adjustment Torqmatic Clutch AssemblyDrive Section Page Drive Gearing Gearing AssemblyGearing Section Auxiliary Gearing Motor Section Motor AssemblyHead Section Reversible Housing and Valve Assembly Standard ModelsQTY Service KIT noTrouble Shooting Piped Exhaust System Assembly AccessoriesStandard Length for 1/4 HEX Bits Housing and Adapter AssembliesFinders Bell Mouth Extension Finder for 1/4 HEX Bits Bits and BIT HoldersPhillips Bits HEX Drive Bits Extension Bladed Bits For Slotted ScrewsReed & Prince Bits Bits Extended BIT with Integral Finder for Slotted ScrewsMagnetic BIT Holder Socket Head DriversSquare Drive Adapters HEX Ball Lock Adapter