R-12 RELAY VALVES -706880559

TM 5-4210-233-14&P-1

4-154. R-12 RELAY VALVES

THIS TASK COVERS:

Removal

Follow-on Maintenance

Installation

TOOLS REQUIRED

EQUIPMENT CONDITION

Too[ Kit, General Mechanics, Automotive

Main Engine Shutdown (see para 2-12 .)

(Appendix B, Section IIl, Item 1)

Batteries Disconnected (see para 4-114 .)

All Air Tanks Drained (see para 4-157 .)

a. Removal.

NOTE

There are two R-12 relay valves. They are located

on the inside of each frame rail between the tan-

dem axles.

Refer to the locator view in para 4-147 and the air

schematics in Appendix G for additional informa-

tion.

(1) Tag and disconnect air lines from relay valve.

(2) Remove two mounting bolts and remove valve.

b. Installation.

(1) Install valve and install two bolts.

(2) Connect air lines to valve.

Follow-on Maintenance.

(1) Connect batteries (see para 4-114).

(2) Check for leaks as described in para 4-147 .

4-430