The first step is to determine the necessary hose
length from table 10-2 and figure 10-10. Wrap the
circumference of the hose with masking or plastic
electrical tape at the cutoff to prevent flare-out of braid
if the hose outer cover is wire braid. Hose with rubber
or fabric outer cover does not require wrapping with
tape. Measure the hose to the required length and cutoff
the square, using the cutoff machine (fig. 10-7). Blow
the hose clean with filtered shop air after cutting.
Remove the tape and the clamp socket in a vise (fig.
10-11). Do not overtighten vise on thin-walled
Figure 10-11.--Hose insertion.
lightweight fittings. Screw the hose counterclockwise
into the socket using a twisting, pushing motion until
the hose bottoms on the socket shoulder. Back the hose
out 1/4 turn. Assemble the nipple and nut with a
standard adapter of the same size and thread (fig.
10-12). Lubricate the inside bore of the hose and the
outside surface of the nipple with hydraulic fluid,
MIL-H-5606, MIL-H-83282, or MIL-H-6083 (fig.
10-13). Clamp the socket with the hose into a vise.
Insert the nipple assembly into the hose and socket by
using a wrench on the hex of the insertion tool. Turn the
nipple assembly clockwise until the nut-to-socket gap
is between 0.005 and 0.031 inch. The gap allows the nut
Figure 10-12.--Nipple and nut assembly.
to turn freely about its axis (fig. 10-14). Remove the
insertion tool from the assembly. Repeat the procedure
for hose assemblies with straight fittings on both ends.
Figure 10-13.--Assembly lubrication.
Figure 10-14.--Nipple assembly adjustment.
Figure 10-10.--Determining hose assembly length.
10-11
