Mach III Clutch DAF3K-STH & DAF3K-STL User Manual
Page 4
7/9/2013
BRAKES_FLANGE_SPRING_MANUAL
Page 4 of 5
VI.
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. COMPLETE DISASSEMBLY
(1)
Remove brake from shaft and place in vertical position with top plate end facing
upward.
(2)
Apply air to brake to relieve spring pressure from top plate.
(3)
Remove cap screws and top plate.
(4)
Remove retainer ring, race and springs.
(5)
Remove drive discs, friction discs and remaining springs.
(6)
Remove air supply from brake.
(7)
Invert brake and remove retainer ring from drive hub.
(8)
Remove air cylinder with bearing 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 to break the
Loctite
®
seal.
(9)
Next, remove the screws from pressure plate.
(10) Remove spacers and springs.
(11) Separate piston from cylinder.
B. FRICTION DISC REPLACEMENT ONLY
(1)
Remove brake from shaft and place in vertical position with top plate end facing
upward.
(2)
Apply air to brake to relieve spring pressure from top plate.
(3)
Remove cap screws and top plate.
(4)
Remove retainer ring, race and springs.
(5)
Remove drive discs, friction discs and remaining springs.
(6)
Drive discs should be clean, dry and free of burrs or nicks.
(7)
Reassemble drive disc, friction disc, springs and race section according to reference
drawing using new friction discs, steel drive discs and springs as necessary.
(8)
Assure that drive discs move freely on the drive hub and that the friction discs move
freely in the cylinder or ring gear.
C. O-RING REPLACEMENT
(1)
Follow COMPLETE DISASSEMBLY instructions above.
(2)
Separate cylinder and piston.
(3)
Inspect O-ring seals. If worn, replace using new 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.