Section IX
Removal of Hose Assemblies from Installation
14
EATON
Aerospace Group
TF100-63 October 2011
1. Inspection
Inspection and replacement of PTFE hose assemblies
should be accomplished at specified maintenance or
overhaul periods for the aircraft or engine as prescribed
by applicable aircraft inspection requirements, or
whenever leakage, abrasion of the cover, kinks or other
mutilation is evident.
2.
AN-MS Flared And Flareless Connections
Apply one wrench to the swivel nut (also called “B” nut)
and second wrench to hex on nipple portion of hose
fitting. Turn nut to loosen and remove hose line. (See
Figure 20.)
Caution:
Do not place wrench on socket of hose fitting
when removing hose line (See Figure 21).
3.
Handling General
PTFE hose assemblies will tend to preform themselves
(assume their installed shape) to the installed position
on hot fluid lines. For this reason, care should be
exercised in handling and removing these lines from
installation. Sharp or excessive bending will tend to kink
PTFE hoses.
Caution:
Do not bend or attempt to straighten pre-
formed PTFE hose lines.
Warning:
Do not stand on hose lines or use lines for a
handle.
Figure 20. Loosening Swivel Nut
Figure 21. Wrong Method To Loosen Swivel Nut
