Figure 4-5. Thermal Relief
b. Cover Test Fixture manifold to prevent contami-
To keep dirt from Module assembly self-
seal coupling should be removed in a
c. Use clean, low-lint cloth (item 4, App D) to clean
coupling area. Flush with Clean All D (item 5, App
d. Remove self-seal coupling, rings, and packing
from module assembly, Figure 4-7.
e. Coat new seals and coupling threads with hy-
draulic fluid (item 3, App D), before installing.
Valve Removal and Replacement
f. Install large self-seal coupling and seal in module
assembly. Torque to 285-315 inch-pounds.
g. Install small self-seal coupling and seal in module
assembly. Torque to 142- 157 inch-pounds.
h. Install repaired Module assembly in Test Fixture
manifold (paragraph 4-17 ).
4-19. Female Quick-Disconnect Couplings
a. Remove Pilot Assist Hydraulic Module assembly
from Test Fixture manifold, paragraph 4-17, to get to
b. Cover Pilot Assist Hydraulic Module assembly
and Test Fixture manifold open ports to prevent
4 - 14