Warner Electric Electric Wheel Brake 12-1_4 x 3-1_2 Replacement - Manual (Page 21)

21 Warner Electric • 800-825-9050 819-0209
Allowing this much wire prevents strain on
the wires when the magnet is pulled out the
maximum distance.
11. Lubricate the following with “moly” impreg-
nated grease:
Lever arm pivot screw (5-2).
Lever arm (5-1)–flat area around pivot
screw bushing, both sides.
Lever arm “feet”, both sides (5-1).
Feet guide area of backing plate.
Six shoe pads on backing plate.
Refer to Figure 51, “Lubrication Points.”
12. Reassemble the magnet arm (5-1) over the
pivot screw (5-2) making sure the magnet
arm “feet” slide into the guide on the back-
ing plate.
13. Assemble the magnet lead wire terminals
onto the terminal posts (6-3) in the follow-
ing sequence:
a. Place one internal lockwasher over each
post.
b. Place one wire terminal over each post.
c. Place one internal nut (6-1) over each
post and tighten them to 30-40 in. lbs.
torque.
14. Reinstall the two shoes (2-1), the adjuster
(3-1, 3-2, and 3-3) and the adjuster spring
(3-5) as a complete assembly.
15. Reinstall the two shoe hold down spring
assembles. To facilitate the installation of
these assemblies, rotate either shoe (2-1)
away from the anchor pin so that the shoe
slides off the shoe pad and onto the curl of
the backing plate. This procedure will mini-
mize the hold down spring compression
required.
16. As noted in Step 3, there are two shoe hold
down assembly configurations. Follow the
instructions for Style A or Style B to install
the shoe hold down assemblies.
Style A (old style): Insert the pin (with the
rubber washer on its head) through the rear
of the backing plate and through the hole in
the shoe web.
Place a dished washer, the spring, and
another dished washer over the pin end.
Compress the spring assembly below the
swaged end of the pin. Rotate the top
washer 90° to lock the assembly into place.
Repeat these steps for the second shoe
hold down assembly.
Style B (new style): Insert a hold down pin
(2-3) through the hole in the rear of the
backing plate and through the hole in the
shoe web (2-1). Hold the pin in place.
Place a spring cup (2-4), convex upward,
over the pin. Next install the spring (2-2), a
spring cup (2-4) convex downward, and
then a spherical washer (2-5) over the pro-
truding pin (2-3). The spherical washer
nests in the spring cup.
Slide a new “X” washer retainer (2-6)
between the head of the pin (2-3) and the
spherical washer (2-5) while compressing
the assembly. Using pliers, close the “X”
retainer to lock on the pin.
Repeat these steps for second assembly.
Figure 51 - Lubrication Points