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 TM 55-1925-204-12
e. Cam Operated Pilot Air Valve.
(2) (a) through (d) above and assemble the brake air
cylinder.
(1) Removal.
(5) Installation.
Install the brake air
(a) Close globe shutoff valve (fig. 4-18).
cylinder by reversing the procedure in step (1) (a) through
(b) Disconnect union (fig. 4-22), remove
(d) above.
mounting screws, then remove cam operated pilot air
valve.
.
Figure 4-22. Cam operated pilot air value
(2) Inspection. Inspect the cam operated pilot
f. Pressure Regulating Valve.
air valve for worn roller, loose arm, or other defect.
(1) Removal.
Replace a defective pilot air valve.
(a) Close the shutoff valve (fig. 4-18).
(3) Installation. Install the pilot air valve by
(b) Disconnect inlet and outlet air lines.
reversing the removal procedures in step (1) (a) and (b)
(c) Remove nuts (19, fig. 4-23) from
above.
studs on bracket (18), then remove body (20).
4-35
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