e. Install the six unions and packings in the replacement manifold. Coat them with hydraulic fluid
(item 2, table. 5-2). Tighten the unions.
f. Clean the panel area with a cloth (item 4, table 5-2).
g. Align the pins and position the manifold on the panel. Install and tighten the four screws and
h. Connect the six tubes to the unions.
i. Perform an operational check. (Ref para 5-18.)
j. Perform the proof pressure test. (Ref para 5-44.)
k. Install the panel in the case. (Ref para 5-45.)
5-38. Replacement of Gages.
(See fig. 6-5.) Remove the panel from the case (para 5-22).
At gage (85 or 101), disconnect the two tubes from the tee elbows.
Loosen the thumb screw on the gage coverplate. Remove the coverplate.
Be careful when removing the screws. If a tool slips, the pointer or dial
can be damaged.
d. Remove the three nuts and screws securing the gage to the panel. Remove the gage.
Record the location of the tee.
e. Remove the tee and attaching hardware.
f. Install the tee and attaching hardware on the gage. Use teflon tape (item 3, table 5-2) as required.
g. Position the gage on the panel. Install the three screws and nuts.
h. Install the coverplate and tighten the thumbscrew.
i. Connect the two tubes to the elbows.
j. Perform an operational check. (Ref para 5-18.)
k. Perform a proof pressure test (para 5-44).
l. Install the panel in the case (para 5-45.)
5-39. Replacement of Plumbing.
a. (See fig. 6-5.) Tag and remove the tube.
b. For replacement of tubes, cut. and bend new tubes per TM 55-1500-204-25/1. Use the defective
tube as a guide. Replace fittings as required.
c. Install the tube and remove the tag.
5-40. Replacement of Electrical Receptacle.
a. (See fig. 6-4.) Remove the panel from the case. (Ref para 5-22.)
b. Remove nut securing connector (64) to the panel.