Manual

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7/9/2013 CLUTCHBR_PILOT_BALLBRG_MANUAL Page 1 of 5

Installation & Maintenance Manual

COMBINATION AIR ENGAGED FRICTION CLUTCH-

SPRING ENGAGED FRICTION BRAKES

STOP & START THE BALL BEARING PILOT (SPROCKET)

Catalog Products:

W3A2H-STH

W4A2H-STH

W5A2H-STH

W6A2G-STH

And non-catalog variations

of this clutch-brake design.

Mach III Technical Support

Toll Free: 866-291-0849

International: 001-859-291-0849

Email: engineering@machiii.com

www.machiii.com

Detail sheets and 3D models are available on the Mach III website:

http://www.machiii.com/Products/Clutch-Brakes/Stop-Start-Pilot-Sprocket-Clutch-

Brakes-Ball-Bearing.asp

Please contact Mach III to obtain assembly and parts list drawings.

This product includes rotating equipment and should be guarded according to

OSHA requirements and other Federal, State and local regulations. It is the

responsibility of the user to provide necessary guarding.

CLICK on product numbers

above to obtain the product detail

sheet which includes dimensional

data helpful during installation.

Summary of content (5 pages)

PAGE 1
Installation & Maintenance Manual COMBINATION AIR ENGAGED FRICTION CLUTCHSPRING ENGAGED FRICTION BRAKES STOP & START THE BALL BEARING PILOT (SPROCKET) Catalog Products: W3A2H-STH W4A2H-STH W5A2H-STH W6A2G-STH And non-catalog variations of this clutch-brake design. CLICK on product numbers above to obtain the product detail sheet which includes dimensional data helpful during installation. Mach III Technical Support Toll Free: 866-291-0849 International: 001-859-291-0849 Email: engineering@machiii.com www.
PAGE 2
I. New Clutch-Brake Torque New clutch or brake torque is approximately 40% less than rated design torque until the friction and drive discs are worn in (lapped, burnished). The length of time for wear-in to occur depends upon the application. II. Installing a Sprocket or Pulley Mach III units are typically shipped from the factory with the required sprocket or pulley preinstalled. This section pertains only to those who need to install or replace a pulley or sprocket in the field.
PAGE 3
IV. Clutch-Brake Operation The maximum operating pressure should not exceed 80 PSI. Operation at pressures greater than that required for proper function will decrease the life of the bearings. Special Note Regarding Friction Disc Contamination: The friction material used in this product will absorb oil, water, chemicals and other contaminants. Depending on the type of contamination, clutch or brake may either seize up entirely or lose torque capacity.
PAGE 4
VII. Repair Kit Installation Procedure Tools Required Compounds Required Hex Wrench Set Rubber Mallet or similar soft face hammer Retainer (snap) Ring Pliers Scraper 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.
PAGE 5
D. REASSEMBLY (1) (2) (3) (4) (5) (6) (7) Replace the piston/bearing/cone/brake friction disc sub-assembly into cylinder. ® Inspect the inside diameter of the bearing in the air cylinder. If Loctite residue is present, gently scrape and assure that the surface is clean. ® Apply a thin coat of Loctite #609 retainer compound to the inside diameter of the air cylinder bearing, then slide the air cylinder/bearing sub-assembly over the drive hub.