4-88. HYDRAULIC PRESSURE GAGES (CONT)
Dry cleaning solvent (P-D-680, Type III) is used to clean parts and is potentially
dangerous to personnel and property. Extinguish all smoking materials and do not
allow sparks or open flames near the work area. Use skin and eye protection and
work in a well-ventilated area. Flash point of dry cleaning solvent is 200F (93C).
Clean pressure gages with wiping rags. Clean all other components with dry cleaning solvent.
Inspect pressure gages for cracked or broken glass, bent needles, stripped threads, or evidence of leakage.
Replace any defective gages.
Prepare threads of pressure gage (7) in accordance with step a or step b:
a. Apply pipe sealant to threads, except for last two threads at open end.
b. Apply two turns of Teflon tape to threads leaving last two threads at open end uncovered.
Install straight pipe-to-tube adapter (6) onto pressure gage (7). Aline and install pressure gage (10) and secure
with three screws (9) and self-locking nuts (8).
Remove caps/plug and connect hydraulic tube (5) onto straight pipe-to-tube adapter (6) on pressure gage (7).
Repeat steps 2 and 3 to install and connect all pressure gages removed, as required.
Using two people, aline and install lower panel (3), with door panel attached, onto hydraulic control module (4).
Secure lower panel in place by installing six lockwashers (2) and capscrews (1).
4-434 Change 2