6
EATON
Aerospace Group
TF100-67A March 2013
Rynglok Fitting System Installation Guide
4.0
Assembled Fitting Inspection
4.1
Ring Advancement Inspection
After fitting installation, ring advancement should be verified using
the inspection gauge P/N RTSG0-51-SIZE. The inspection gauge
should fit over the ring area as shown in Figure 6A. Figure 6B shows
an incomplete/incorrect swage.
Figure 6A
Complete ring advancement inspection.
Figure 6B
Complete ring advancement inspection.
4.1.1 Insertion Inspection Mark Position
The inspector should verify that the edge of the fitting is touching
or over the insertion inspection marks after assembly as shown
in Figure 6A. This is to ensure that the tube was inserted to the
required depth.
4.2
Shared Insertion - Unions
In the case of unions, the tube insertion allowance is shared by each
leg of the union. If one tube end is inserted to maximum depth, then
the opposite tube end can only be inserted to a minimum depth, as
shown in Figure 7. This shared insertion condition is only applicable
to unions, which have a through bore to allow placement onto cut
lines during repair. All other fittings have a positive stop in each leg,
and the entire positioning length is available for each leg.
Note:
Under maximum insertion condistions it will not be possible
to see the inspection mark until after swage.
Figure 7
Shared insertion conditions
4.2.1
Over Insertion Condition — Fittings Other Than Unions
All fittings other than unions, are designed with a positive tube stop
or bottoming feature which prevents over insertion of the tube end
during assembly, as shown in Figure 8. The exceptions are special
bulkhead fittings, configurations of fittings with deep bores to save
weight, special repair and penetration fittings, etc.. In these circum-
stances, the tube insertion guidelines and marking must be strictly
adhered to in accordance with Figure 6A to ensure proper inspection
procedures.
Note:
It is necessary that tube marking procedures be adhered to
for all Rynglok fittings.
Figure 8
Fittings with over insertion conditions
