Specifications

TM 9-2330-384-14&P
4-80. PIPING ASSEMBLY, FRONT PORT, AND REAR INLET MAINTENANCE (Con't).
(10) Inspect coupling gasket (21) for damage. If damaged, replace.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
4-264
Grease coupling gasket (21). Ensure gasket mating surfaces on piping assembly (6) and
emergency valve (24) are clean. Slide gasket onto end of piping assembly.
CAUTION
Use caution not to damage precheck tubing when installing piping assembly
(6) from under semitrailer.
Position piping assembly (6) under semitrailer so that gap between piping assembly and
emergency valve (24) is no more than ¼ in. (6.4 mm).
Slide gasket (21) off of piping assembly (6) and bridge gap between piping assembly and
emergency valve (24).
Install coupling (22) halves and two bolts (23) over gasket (21). Ensure edges of coupling are
seated in grooves in piping assembly (6) and emergency valve (24).
Rotate coupling (22) halves to about a 45° angle toward roadside to allow sufficient clearance
to install two nuts (25). Fully tighten nuts.
Install piping assembly (6) to two support brackets (9) and to piping assembly support
bracket (8) with four U-bolts (13), eight washers (12), new lockwashers (11), and nuts (10).
Perform step 2 of subparagraph b and step 2 of subparagraph d to install brake interlock
angle brackets (14) to piping assembly (6) flanges.
Connect control cable and tubing at emergency valve (24) (see paragraph 4-76).
Install precheck fittings to piping assembly (6). Connect precheck tubing to fittings (see
paragraph 4-72).
f. INSTALLATION OF PIPING ASSEMBLY