Warner Electric ATT Tension Brakes User Manual
ATT Tension Brakes
P-221
819-0338
Installation Instructions
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Wear Indication . . . . . . . . . . . . . . . . . . . . . . . . . .5
Brake Repair on the Shaft . . . . . . . . . . . . . . . . . .6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . .8
Dimensions and Specifications . . . . . . . . . . . . . .9
Exploded View and Parts Lists . . . . . . . . . . . . .10
Warranty . . . . . . . . . . . . . . . . . . . . . . . .back cover
Failure to follow these
instructions may result in product damage,
equipment damage, and serious or fatal injury
to personnel.
Introduction
The Warner Electric AT Tension (ATT) brake you
have purchased has been designed to provide
long and trouble free service. It is a rugged and
durable unit which is rebuildable with friction face
replacement kits discussed in this service manual.
The friction face replacement kit renews the friction
surfaces.
This service manual includes instructions required
for installation, repair on the shaft, and
troubleshooting information, specifications,
dimensions, an exploded view and parts lists.
Please refer to the Table of Contents for section
page numbers.
All installation and repair involving ATT brakes must
be carried out in accordance with the procedures
specified in the service manual. All stated or
implied manufacturer warranties are voided if this
product is not installed and serviced in accordance
with these instructions.
Warner Electric • 800-825-9050 P-221 • 819-0338
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Other Tensioning Products
Warner Electric offers many tension control
products in addition to the ATT line. Basic tension
brakes and high performance modular tension
brakes are available, as well as a complete line of
electronic tension controls. These include a basic
manual control, a load cell control, a closed loop
dancer control, and splicer controls. For more
information on these and other products, please
call or write:
Warner Electric
31 Industrial Park Road
New Hartford, CT 06057
Phone (815) 389-3771
Modular control systems for
tension brakes are either manual
adjust or closed loop types.
Simple tension control
requires only a tension
brake and this manual
control.
Splicer control offers dual functions for
two roll systems requiring simultaneous
tensioning and holding.
Load cell control system
automatically adjusts
tension from load cell
amplifier input.
Modular tension brakes are
available in 10", 13", 15", and
20" diameters with single or
dual friction discs and two to
twelve magnets.
Warner Electric • 800-825-9050 P-221 • 819-0338
3
Brake Installation
1. Remove your ATT brake from its shipping
carton and inspect it thoroughly to ensure
that is has arrived in good condition.
An accessory kit included with your brake
contains a coil wire retainer and mounting
hardware.
2. If used, install the Warner Electric conduit box
in accordance with its furnished instructions.
3. Mount the magnet to the machine frame
using the hardware in the accessory kit so
that the magnet face is square with the
armature shaft within .006 T.I.R. and the
magnet mounting pilot diameter is concentric
with the armature shaft within .010 T.I.R.
This is important to assure proper
function and unit life.
5. Slide the armature over the input hub.
6. Slide the hub onto the shaft and provide a
1/16" gap between the friction faces.
4. Tighten the mounting screws to the machine
frame to the appropriate torque for your size
brake.
Size Torque
25 12.5 ft.-lbs.
55 25 ft.-lbs.
115 25 ft.-lbs.
7. Tighten the set screws located in the hub to
the appropriate torque for your size unit:
Size Torque
25 80 in.-lbs.
55 160 in.-lbs.
115 275 in.-lbs.
Warner Electric • 800-825-9050 P-221 • 819-0338
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