Mach III Clutch EBD4K-STH User Manual

Page 4

7/9/2013

CLUTCH_ENDSHAFT_SPRING_HD_MANUAL

Page 4 of 4

A. DISASSEMBLY

(1)

Remove clutch from shaft and place in vertical position with cylinder end facing upward.

(2)

Apply a minimum of 80 psi and remove cap screws in cylinder.

(3)

Remove air cylinder with piston and spring retainer from unit.

(4)

The disc package (consisting of friction discs, drive discs & release springs) will now be
accessible.

B. FRICTION DISC & RELEASE SPRING REPLACEMENT

(1)

Remove the drive discs, release springs and friction discs.

(2)

Drive discs should be clean, dry and free of burrs or nicks.

(3)

Reassemble drive & friction disc section according to reference drawing using new
friction discs, release springs and iron drive discs as necessary.

(4)

Assure that drive discs move freely on the drive hub and that the gear teeth of the
friction disc discs move freely in the ring gear.

C. O-RING REPLACEMENT

(1)

Remove air supply from removed cylinder assembly. If needed compress piston in a
hydraulic press to compress the engagement springs and remove retainer ring.

(2)

Inspect O-ring seals (in piston and spring retainer). If worn, replace using new O-rings
that have been lubricated with an O-ring lubricant such as Dow Corning

4 Compound

or equivalent.

(3)

A very thin coat of O-ring lubricant should also be applied to the inner wall of the spring
retainer and boss of the cylinder.

(4)

Replace engagement springs if necessary.

D. REASSEMBLY

(1)

Replace the spring retainer and piston onto cylinder. If needed compress piston in a
hydraulic press to compress the engagement springs and replace retainer ring.

(2)

Apply a minimum of 80 psi to the removed cylinder assembly.

(3)

Place the air cylinder/piston sub-assembly onto spacer with holes aligned.

(4)

Make sure that all components are well seated and replace and tighten cap screws.

(5)

See “Clutch Installation” portion of these instructions for the proper procedure for
reinstalling the clutch.

Technical assistance is available by contacting Mach III Clutch, Inc.

Mach III Product Warranty

http://www.machiii.com/Resources/Warranty-Info.asp

Mach III Clutch, Inc.