Figure 4-31. Upper manifold relief valve (used on
Army models
SPE 41, SPE 44, SPE 45 and York-Shipley, YS49279)
4-35. Pressure Relief Valve Overflow Tube and Clip
(2) Remove the nut, lockwasher, and screw
that hold the clip (2, fig. 4-32B) to the heater, and
a. Inspection. Inspect for broken and twisted tube,
remove the clip from the heater.
and for broken and loose clip.
(3) Remove the tube from the heater.
b. Removal.
c. Installation. Replace defective tube and clip
(1) Unscrew and remove the nut (4, fig. 4-
with serviceable ones. Fabricate a serviceable tube
31) from the elbow (1), and remove the overflow tube
from the bulk tubing the same length as the defective
(5) from the elbow.
one. Install serviceable tube and clip by reversing the
procedure in b above.