Warner Electric MTB-I - Manual

Servicing the Warner Electric MTB-I
Installation Instructions
P-1397
819-0307
The magnet friction pads and armature are the
wearing parts of the Modular Tension Brake
(MTB). While the wear life is normally many
months, the magnets and/or armature(s) may
eventually require replacement.
Failure to follow these
instructions may result in product damage,
equipment damage, and serious or fatal injury
to personnel.
Replacing the Magnet Friction Pad
The magnet consists of the basic coil housing
and a replaceable friction pad. To replace the
pad, proceed as follows:
1. Shut off power at the control system.
2. Remove the carrier assembly from its bracket
and slide the magnet off the pins.
3. Remove the flat head screw which secures
the pad to the housing, and remove the pad.
(See Figure 1)
Figure 1
4. Install new pad with the new screw provided.
5. Before reattaching the carrier, check the
armature for wear. If the armature is worn to
a thickness of 5/16" or less at the thinnest
section, it must be replaced. If it is more than
5/16" it may be used as is with the new
magnet. (See Figure 2) A used armature
should not be resurfaced even though it may
have a wear pattern from previous use.
Figure 3
Figure 4
Figure 2
To replace the armature first remove other
components as required to allow removal of
the armature from the hub and shaft. Install
the new armature and other components,
including the magnets and carrier, in reverse
order.
6. Adjust the armature(s) on the shaft for
proper magnet-to-carrier clearance of .200
inch. See Figures 3 and 4 for single or dual
armature units.
Warner Electric 800-825-9050