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Warner Electric Electric Wheel Brake 12-1_4 x 3-1_2 Replacement User Manual

Page 19

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19

Warner Electric • 800-825-9050

819-0209

On left-hand brakes allow 3-1/8-inches of
wire between magnet and the first clip.
(See Figure 46).

Allowing this much wire prevents strain on
the wires when the magnet is pulled out the
maximum distance.

12. 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 braking plate.

(See Figure 47) “Lubrication Points”

13. Reassemble magnet arm (5-1) over pivot

screw (5-2) making sure magnet arm “feet”
slide in guide on backing plate.

14. 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. lb. torque.

15. 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.

16. To facilitate the installation of the shoe hold

down 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.

17. 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 protruding
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

Figure 47 - Lubrication Points