Installation and Maintenance Manual AIR ENGAGED FLEXIBLE FRICTION CLUTCH COUPLINGS This document applies to the following catalog standard products, and to custom versions based upon these models: C2H2R-STH C3H2R-STH & C3H2R-STL, C4H2R-STH & C4H2R-STL C5H2R-STH & C5H2R-STL, C5H2K-STH & C5H2K-STL C6H2G-STH & C6H2G-STL, C6H2K-STH & C6H2K-STL PLEASE NOTE Mach III products are manufactured on a per order basis and may only be returned in cases of warranty defect. We strongly recommend review of all new applications with Mach III Engineering staff to ensure suitability of the chosen product for the intended use. © Mach III Clutch, Inc. All Rights Reserved

ADDITIONAL RESOURCES AND SERVICES PRODUCT DETAIL SHEETS Click on the product number shown on page 1 of this document for a link to download the product detail sheet which contains dimensional data, torque capacity and other specifications along with parts list and parts kits details. For custom products (part numbers ending in three numeric characters), contact Mach III Engineering. ANTI-ROTATION ARM MOUNTING INSTRUCTIONS Mach III through-shaft mounted clutches and clutch-brake combinations require installation of an anti-rotation arm (also known as a reaction arm) which is discussed later in...

INSTALLATION 1. CLUTCH INSTALLATION Great care must be exercised to ensure proper offset & angular alignment between shafts to prevent premature coupling failure. A. SHAFT PREPARATION & MOUNTING 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. It may be necessary to file or sand the shaft to ensure a slide fit. Never hammer the clutch onto the shaft. Hammering on the clutch may cause evident damage or subtle injury that will shorten the wear life of the unit,...

OPERATION A. AIR PRESSURE Torque output of this model is proportional to air pressure applied. Refer to the Product Detail Sheet for specifics regarding torque capacity. To achieve the longest possible bearing life, the air pressure supplied to the unit should be regulated to the minimum amount necessary to attain the required torque output. The maximum operating pressure should not exceed 80 PSI. B. CONTAMINATION The friction material (pads) contained within this product will absorb oil, water, chemicals, and other contaminants. Depending on the type of contamination, clutch may either seize...

FRICTION DISC BEARING RETAINER RING COUPLING HUB FLEXIBLE ELEMENT SLEEVE DRIVE DISC PARTS DIAGRAM FOR MODELS: C5H2K-STH & C5H2K-STL, C6H2K-STH & C6H2K-STL RING GEAR FRICTION DISC CONE SPRING BEARING RETAINER RING COUPLING HUB FLEXIBLE ELEMENT SLEEVE DRIVE DISC

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. DISASSEMBLY (1) Remove clutch from shaft and place in vertical position with cylinder end facing upward. (2) Remove retainer ring from drive hub. (3) 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...

Apply a thin coat of Loctite® #609 retainer compound to the inside diameter of the bearing (applying excessive Loctite® will make future disassembly more difficult), then slide the air cylinder/bearing sub-assembly over the drive hub making sure the pins of the cone are aligned with the holes in the cylinder. Make sure that all components are well seated and replace the outer retainer ring. See “Clutch Installation” portion of these instructions for the proper procedure for reinstalling the clutch. MACH III PRODUCT WARRANTY Mach III Clutch, Inc. warrants its products to be free from defects in...