BENDIX TCH-003-020 User Manual

Technical Bulletin

Bulletin No.: PRO-03-20 Effective Date: 11/1/79 Page: 1 of 2

Subject: Remanufactured TC-2 Brake Valves

IMPORTANT INFORMATION!

As announced at the September distributor meetings, all remanufactured TC-2 Brake
Valves will be shipped without a head/handle assembly.

Included with all Remanufactured TC-2 Valves will be the necessary detail parts to
accomplish head/handle changeover for all style valves. Unused parts may be
discarded. Included with the valves will be the following parts. (See Figure 1)

PLEASE READ AND CIRCULATE TO

APPROPRIATE PERSONNEL

1 head o-ring (large)
1 handle o-ring (small)
1 roll pin .098 diameter
1 roll pin .130 diameter
1 ¼” Allen head set screw

Installation instructions will also be included. These instructions appear below and it is
recommended that you review the instructions so you will become familiar with the
head/handle disassembly and assembly procedure.

Removal / Installation Instructions

TC-2 Head/Handle Assembly

Reference Figure 2, before proceeding, identify TC-2 Valve as one of the following
styles:

A. TC-2 Valve without set screw in head.
B. TC-2 Valve with set screw in head.

After identifying, proceed as follows:
A. TC-2 Valve without set screw in head.

1. Remove spiral pin and remove handle from head. Remove head from valve
body.

2. Remove and discard o-rings from handle and from head. Install new o-rings
provided.

3. Remove plastic cap from cam of new valve. Install head on body, making certain
to line up hole in head with hole in valve cam.

4. Install handle in head, making certain handle is inserted into valve cam. Select

correct size pin and install, securing handle to head. Remaining pin and set
screw can be discarded.

B. TC-2 Valve with set screw in head.

1. With a ¼” Allen head wrench, remove set screw. Head/handle assembly may be
removed from valve.

2. Remove and discard o-ring from head. Install new o-ring provided. Remove
plastic cap from cam of new valve.

3. Install head/handle assembly, making certain to line up set screw hole with hole
in valve cam.

4. Install new set screw and tighten firmly. Remaining pins and o-ring can be

discarded.