Ingersoll-Rand 8506-A, 8515-A, 8521-A, 8509-A manual Drive Section, Torqmatic Clutch, Assembly

DRIVE SECTION

TORQMATIC CLUTCH

CLUTCH ADJUSTMENT

Remove clutch assembly from tool. Place wrench on square end of spindle (38322) to adjust nut (38313). To adjust properly, re- lease nut to least tension. Tighten 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 (38322) from tool. Grasp clutch assembly and pull from gearing.

b.Remove nut (36313) releasing washer (33809) and clutch spring.

c.Remove snap ring (31124) releasing retaining ring (37241-l), retainer (38317) and spring (44888). Driver (36319) and cams (38320 and 38321) are now free to be re- moved, releasing steel balls (Y16-203) and pins (38325). Lockout cam (38324) and springs (38313 and 38314) are now free to be removed.

d.Remove retaining ring (38327) releasing spacer (38316) jaw (40771) and steel balls (Y16-204). ,

ASSEMBLY

NOTE: Lubricate balls, pins, jaw faces, lockout cam, cams, driver and bit holder shaft with ARO 40036-l grease when assembling

RETAINING RING 36327

clutch. Clutch assembly should contain approximately 1/8 oz. (3.5

g)of grease.

a. Place jaw (40771) on bench, cam face down, start spindle into jaw, assemble one row of steel balls (Y16-204) and slide to shoulder of spindle. Invert spindle and jaw, assemble balance of steel balls (Y16-204) and spacer (38318) and secure with retaining ring (38327).

b.Assemble lockout cam (38324) and springs (38313 and 36314) into end of spindle (38322) in proper sequence.

c.Assemble cam (38321) to spindle, tang end first. Assemble cam (36320) onto spindle until cam face is flush with groove in spindle, assemble first row of steel balls (Y16-203) into groove, slip cam ahead to second groove, assemble steel balls into second groove and slide cam ahead to secure.

d.Assemble driver (38319) over cam (38320) until face is flush with holes in spindle, assemble pins (38325) into holes and slide drive ahead to secure.

e.Assemble spring (44868) over shoulder of cam (38320) as- semble spring retainer (38317) to spindle and secure with re- tainers (37241-l) and snap ring (31124).

f.Assemble spring and washer (33609) to spindle and secure with nut (36313). Adjust to desired tension and assemble with bit holder assembly (36322) into housing.

SNAP RING 31124

RETAINING RING HALF (2)

RETAINER 38317

RETAINING RING 36326

PIN (3) 36325 .

PARTS SHOWN BELOW THIS LINE ARE NOT lNCLUDED IN 38311- CLUTCH ASS’Y

BIT 30320-2

HOUSING ASS'Y 38312-2

3831I- TORQMATIC CLUTCH ASS’Y

GUIDE ADAPTER IS PRESSED INTO HOUSING

SEE PAGE 14 FOR ADDITIONAL GUIDE ADAPTERS

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