BENDIX TCH-003-025 Fascicule

Subject: 

It has come to our attention that the remote mounted E-10 Brake Valve assembly
101270 as installed on M.C.I. and T.M.C. coaches is more susceptible to contamination
and internal corrosion due to one or more of the following;

1.  Plunger boot deterioration and wear caused by over lubrication of the

actuator mechanism.

2.  Insufficient sealing between the plunger, boot and mounting plate as well as

between the mounting plate and valve body.

3.  Contamination entering the brake valve (primarily water and road salt) due to

the pumping action of the plunger and boot during application and release.

A number of changes have been made to assembly 101270 to improve its resistance to
contamination and internal corrosion on the M.C.I. and T.M.C. installation. (Reference
Figure 1)