Table 4-38. Troubleshooting Guide for Inspection Checking
Fitting does not swage
Swaging with less than 5,500 (+250) psi
Check hydraulic power supply and
fittings to tool.
Improper size die blocks (too large).
Install proper die block assemblies
Gauge will not fit over
Swaging with less than 5,500 psi.
swaged fitting outside
Attempting to read over flash marks.
Rotate gauge off flash marks
Die segments and walls of die blocks
Carefully remove die segments from
must be clean.
die blocks and
1) Clean between die sectors.
2) Clean and lubricate die block
side surfaces and those
surfaces in contact with die
segments with a light film of TFE
Gauge shoulder does
End of fitting must be In contact with
not contact end of
fitting locator shoulder stops on
Locator shoulder stops may be
damaged, It so, they should be
Gauge finger does not
Tube insertion mark did not coincide
Cut out the fitting.
fall within tube Inser-
with face of tool (outside edge of
tion mark on tubing
safety latch) during swaging of both
· Length of tube-to-fitting engagement.
· Outside diameter of swaged fitting
· Length of swaged portion of the fitting.
(1) Inspection with gauge. Proceed as follows:'
(a) Visually Inspect for cracks in fitting or tube.
(b) Place D9892 Inspection Gauge of correct size on swaged fitting as shown In figure 4-85
The use of die segments produces longitudinal ridges (flash marks) on the swaged fitting