TM 9-6920-430-14
3-15. OUTLET FLEXIBLE HOSE REPLACEMENT
High gas pressure (up to 6200 psig) exists when performing the procedure below.
Death or severe injury may result if you fail to observe safety precautions.
a. Open OUTLET BLEED valve to relieve any gas contained in outlet flexible hose; then
close OUTLET BLEED valve fully clockwise.
b. Carefully disconnect (turning counterclockwise) the hose fitting at the GPU outlet connec-
tor (l) using a 5/8-inch wrench to hold and a 9/16-inch wrench to loosen. Disconnect the safety
chain from the GPU eyebolt (3).
c. Seal the GPU outlet connector (l) with the GPU outlet protective cap (2).
d. Requisition a replacement outlet flexible hose. Remove the protective plug and its chain
and safety chain from each end of the original hose and install into the replacement hose. Install
the respective plug into each end of the outlet flexible hose to seal the hose.
e. Remove the protective cap from the GPU outlet fitting and the protective plug from the
end of the GPU outlet flexible hose with shorter safety chain. Connect that end of the hose to the
GPU fitting (1) using a 9/16-inch wrench to tighten. Attach the safety chain to the GPU eyebolt (3).
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