Warner Electric MTB II User Manual
MTB II Modular Tension Brakes
P-259-1
819-0342
Installation Instructions
Introduction
The instructions on this sheet cover installation
of all replacement components available for
modular tension brakes. These instructions are
divided into sections as designated by the
introductory headlines. Please check these
headings to locate the proper instruction for the
replacement components being installed.
Friction components, the most frequently
replaced items, are found near the end of these
instructions.
Failure to follow these
instructions may result in product damage,
equipment damage, and serious or fatal
injury to personnel.
Contents
Assembling Armature to Armature Carrier . . . . . . . .2
Installing the Armature Assembly . . . . . . . . . . . . . .3
Tapered Bushing Carrier . . . . . . . . . . . . . . . . . . . . .3
Straight Bore Carrier . . . . . . . . . . . . . . . . . . . . . . . .3
Mounting the Magnets . . . . . . . . . . . . . . . . . . . . . . .3
Adjusting the Armature Assembly . . . . . . . . . . . . . .4
Control Connection . . . . . . . . . . . . . . . . . . . . . . . . .5
Servicing Friction Surfaces . . . . . . . . . . . . . . . . . . .5
Rebuild Procedure . . . . . . . . . . . . . . . . . . . . . . . . . .5
Removal of the Armatures . . . . . . . . . . . . . . . . . . . .5
Replacement of Friction Pads . . . . . . . . . . . . . . . . .6
Assemble and Install the Armature Assembly . . . . .6
Wear-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Modification of Straight Bore Armature Carriers . . .6
Bulk Head Mounting Brackets . . . . . . . . . . . . . . . . .7
Direct Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Universal Mounting . . . . . . . . . . . . . . . . . . . . . . . . .9
Brake Assemblies and Part Numbers . . . . . . . . . .10
Assembling the Armature to the Armature
Carrier
The beveled edge on the inside diameter of the
armature is to be assembled facing the armature
carrier. Tighten all screws to 7-9 ft. lbs. torque.
(Figure 1)
Figure 1
Using the screws and lockwashers provided
with the armature(s), mount the armature(s) to
the armature carrier. If a single armature is used,
mount it on the appropriate side of the hub. Be
sure to allow easy access to the tapered
bushing. (Figure 3)
Figure 2
Warner Electric • 800-825-9050 819-0342
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Installing the Armature Assembly
Straight Bore Carrier
Insert the tapered bushing loosely into the
armature assembly and start the capscrews with
their lockwashers. (Figure 3)
Figure 3
Tapered Bushing Carrier
Install the key in the machine shaft keyway.
(Figure 4)
The armature carrier may be ordered with a
range of standard straight bores suitable for
various standard mounting products. Custom
bores are also available to adapt to special
devices. Consult the factory for information on
modifications.
Mounting the Magnets
If mounting brackets are used, mount the
brackets to the machine frame using the holes
prepared earlier. (Figure 6)
Figure 4
Slide the armature carrier assembly onto the
shaft to the approximate position required for
operation. Do not tighten the bushing yet
since final positioning will be required later.
(Figure 5)
Figure 6
If a Warner magnet carrier is used, place the
carrier on a horizontal surface with the pins
facing up. (Figure 7)
Figure 7
Figure 5
Warner Electric • 800-825-9050 819-0342
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If the magnets are to be free mounted, mount
the pins as required according to the free mount
layout. Place the magnets on the pins with the
lead wires outboard. (Figure 8)
Figure 8
Bolt the magnet carriers directly to the
mounting bracket with furnished capscrews
and lockwashers. (Figure 9)
Figure 9
Adjusting the Armature Assembly
For an armature assembly with a single
armature face, position the armature assembly
so the space between the back of the magnet
and the magnet carrier assembly is
approximately 1/4’’. (Figure 11)
Figure 11
For a dual armature assembly, position armature
assembly for approximately equal space behind
the magnets on each side. (Figure 12)
Note: If the universal mounting bracket is used
AND the armature assembly has 2 armatures,
the furnished spacers must be installed between
Figure 12
the magnet carriers and bracket. Tighten all magnet carrier mounting bolts securely. (Figure 10)
Tighten the armature assembly to the shaft. The
maximum axial runout on either face is to be
less than .015 T.I.R. (Figure 13)
Figure 10
Figure 13
Warner Electric • 800-825-9050 819-0342
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