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7/9/2013 BRAKES_FLANGE_SPRING_MANUAL Page 1 of 5

Installation & Maintenance Manual

SPRING ENGAGED FRICTION BRAKES

Catalog Products:

D3F3R-STH & D3F3R-STL

D4F3R-STH & D4F3R-STL

D5F3R-STH & D5F3R-STL

D6F3G-STH & D6F3G-STL

D8F3K-STH & D8F3K-STL

DAF3K-STH & DAF3K-STL

And non-catalog variations

of this 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/Brakes/Spring-Set-Brakes/Spring-Set-Brakes.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 SPRING ENGAGED FRICTION BRAKES Catalog Products: D3F3R-STH & D3F3R-STL D4F3R-STH & D4F3R-STL D5F3R-STH & D5F3R-STL D6F3G-STH & D6F3G-STL D8F3K-STH & D8F3K-STL DAF3K-STH & DAF3K-STL And non-catalog variations of this 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.
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I. New Brake Torque New 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. Brake Installation A. SHAFT PREPARATION Mach III Clutch products are bored to fit a precision plug gauge for the specified bore size and should slide fit the mating shaft. Make certain that the shaft is free of burrs or nicks.
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IV. Routine Maintenance When installed and operated according to the preceding guidelines, Mach III Clutch products should require little or no routine maintenance. A repair kit is available which contains all parts subject to typical wear: friction discs, springs and O-rings. V.
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VI. 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. 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.
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D. REASSEMBLY (1) (2) Replace the piston in the cylinder. Make sure the tapped holes in the piston are aligned with corresponding holes in the cylinder. (3) Replace the spacers and springs. (4) Replace the pressure plate and screws making sure screws are tightened to uniform ® torque based on bolt size and use proper Loctite (or equivalent) compound to assure a permanent mount. ® (5) Inspect the inside diameter of the bearing in the air cylinder.