Mach III Clutch X6B2G-STH - Manual (Page 4)

7/9/2013 CLUTCHBR_SHAFT_BRNZBUSH_MANUAL Page 4 of 5
VII. Repair Kit Installation Procedure
Tools Required
Hex Wrench Set
Rubber Mallet or similar soft face hammer
Retainer (snap) Ring Pliers
Scraper
Compounds Required
Grease
O-ring Lubricant
Loctite
®
#609 Retaining Compound
Anti-Seize Lubricant (for re-installation)
A. CLUTCH FRICTION DISC & SPRING REPLACEMENT
(1) Remove clutch-brake from shaft and place in vertical position with sleeve end facing
upward.
(2) Remove retainer ring, race, sleeve and secondary race.
(3) Two remaining retainer rings should now be accessible. Remove the first retainer ring.
(4) The last retainer ring is under pressure from the springs. It may be necessary to
use an arbor press to compress the springs to remove this last retainer ring.
(5) Remove the drive discs, springs and friction discs.
(6) Drive discs should be clean, dry and free of burrs or nicks.
(7) Assure that drive discs move freely on the drive hub and that the lugs of the friction
discs move freely in the drive slots of the sleeve.
(8) Reassemble drive & friction disc section according to reference drawing using new
friction discs, springs and steel drive discs as necessary. Note that the first drive disc
contains a milled hole. It is important that this disc is replaced first during
reassembly to line up with the screw in the cone. After installing remaining friction
discs, drive discs and springs it may be necessary to use an arbor press to compress
the springs to replace retainer ring.
(9) Replace retainer rings, races and sleeve according to reference drawing.
(10) If cylinder is to be disassembled omit steps 8 & 9.
B. CYLINDER DISASSEMBLY
(1) Place clutch-brake in vertical position with cylinder end facing upward.
(2) Remove retainer ring from drive hub.
(3) Remove air cylinder sub-assembly consisting of the piston, bearing & cone from drive
hub. The air cylinder bearing is a slide fit on the drive hub and is affixed to the drive
hub with a thin coating of Loctite
®.
You may need to strike the hub, or an object
inserted in the hub with a rubber mallet or similar soft face hammer, while pulling the
cylinder upwards to break the
Loctite
®
seal.
C. O-RING REPLACEMENT
(1) Separate cylinder and piston/bearing/cone sub-assembly.
(2) Remove & inspect O-ring seals.
(3) Replace O-rings that have been lubricated with an O-ring lubricant such as Dow
Corning
® #
4 Compound or equivalent.
(4) A very thin coat of O-ring lubricant should also be applied to the inner walls of the
cylinder. Be careful not to contaminate brake friction disc with O-ring lubricant.