Mach III Clutch W6A2G-STH User Manual
Page 4
7/9/2013
CLUTCHBR_PILOT_BALLBRG_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.
(3)
Remove sleeve assembly from drive hub. The
sleeve’s bearings are a slide fit on the
drive hub and are 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 sleeve upwards to break the
Loctite
®
seal.
(4)
Two remaining retainer rings should now be accessible. Remove the first retainer ring.
(5)
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.
(6)
Remove the drive discs, springs and friction discs.
(7)
Drive discs should be clean, dry and free of burrs or nicks.
(8)
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.
(9)
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.
(10) Replace retainer rings, races and sleeve according to reference drawing.
(11) If cylinder is to be disassembled omit steps 9 & 10
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 & BRAKE FRICTION DISC REPLACEMENT
(1)
Separate cylinder and piston/bearing/cone/brake friction disc sub-assembly.
(2)
Remove & inspect O-ring seals.
(3)
Remove Brake friction disc.
(4)
Remove any grease from piston and replace brake friction disc.
(5)
Replace O-rings that have been lubricated with an O-ring lubricant such as Dow
Corning
®
#
4 Compound or equivalent. Be careful not to contaminate brake friction
disc with O-ring lubricant.
(6)
A very thin coat of O-ring lubricant should also be applied to the inner walls of the
cylinder.