Warner Electric Electric Wheel Brake 12-1_4 x 3-1_2 Installation Instructions - Manual (Page 4)

4 Warner Electric • 800-825-9050 A-216 • 819-0244
C. Installing the Brake
Note: Brakes are designed as either right hand
or left hand assemblies by the RH or LH
marked on the outside of each backing plate.
(See Figure 1). The arrow on Figure 1 indicates
the direction of forward travel.
Figure 1 - Brake Designation
1. Mount the brake to the axle flange with the
anchor pin at the top, the magnet at the
bottom, and the curve of the actuating lever
pointing toward the front of the trailer (see
Figure 2).
Figure 2 - Mounting Position
2. Check to be sure that the brake backing
plate mates properly to the axle flange pilot.
The brake must be square with the spindle
when bolted into place.
3. Tighten each of the six nuts with
lockwashers to 71-79 ft.-lbs. torque. Tighten
them alternately and evenly before applying
full torque (see Figure 3). Note that the pivot
pin also serves as a mounting stud.
Retorque the nuts after 50 miles of driving
and periodically thereafter.
4. After the brake has been mounted to the
flange, operate the lever arm to assure that it
moves freely.
Figure 3 - Tightening Nuts
D. Preparing the Brake Drum
Armature mounting holes are drilled in the brake
drum as indicated on the dimensional drawing
I-26117, page 2.
Warner Electric Armature P/N 110-0124
(.224/.205 thick)
a. Fasten this one-piece steel armature
inside the drum with (6) 1/4-inch
diameter flat head machine screws
with nuts and lockwashers (Step b)
or (6) 80° flat head rivets (Step c).
b. Fasten each machine screw with two
nuts tightened against one another to
prevent loosening. Peening the ends of
the screws is recommended as an
additional safeguard against loosening.
Front
of Trailer