Warner Electric Wheel-Brakes (Std) - Manual (Page 9)

Figure 2-11
Bolt Armature Inside of Drum
NOTE: Armatures are marked right and left hand,
and they must be installed accordingly.
Face in direction of forward vehicle travel to
establish right and left hand relationship.
Figure 2-12
Armature Depression Gauge
Check Armature Depression
Before closing up the brake assembly by mounting
the wheel on the axle, check the armature depression.
Since the armature and magnet must run in light
contact at all times (the armature is spring mounted to
compensate for armature and magnet wear), it is
absolutely necessary that the proper magnet and
armature relationship, termed armature depression, is
maintained at all times. Because this relationship
between armature and magnet constitutes a blind
assembly, an armature depression gauge (Figure 2-12)
is used.
Gauge #40252 for 12-1/4 x 5-1/2” brake
Gauge #40252 for 15 x 3” brake
Gauge #4812 for 16-1/2 x 5, 6, or 7” brake
Step 1 To determine the amount of depression,
place the outside legs of the gauge against
the magnet facing with both thumb screws
loose and with collar on middle leg on the
outside of gauge crossbar (Figure 2-13).
Push the middle, movable leg into contact
with the bearing shoulder. Make certain that
the gauge is held perpendicular to the
magnet and that the magnet is flush against
the brake spider.
Figure 2-13
Using Depression Gauge—Step 1
9 Warner Electric • 800-825-9050 819-0514
Outside Legs
Frame
Thumb
Screw
Middle
Movable
Leg
Collar
Thumb
Screw
Collar
Go-No-Go
Gauge
Magnet
Face
Bearing
Shoulder