COBHAM SEA TEL 9711IMA-70, Installation Manual

Page: 171 / 178

Dometic AC Transformer Upgrade
Page 7 of 7
Document No
134069 Rev-B
7.9.4
Lift the transformer until the 9/16 inch hole is aligned with the hole in the
base frame. Insert a ½ - 13 UNC x 1.25 cap screw with flat washer
through the holes. Apply Loctite 271 threadlocker.
7.9.5
Thread a ½ - 13 UNC nut with flat washer and lock washer onto the ½ - 13
cap screw.
7.9.6
Tighten all fasteners in accordance with Sea Tel Procedure 122305.
7.10
Connect the female socket plug from the A/C circuit breaker pigtail cable into the
male pin receptacle on the transformer. Thread the retaining nut of the plug
tightly onto the receptacle thread.
7.11
Connect the male pin plug from the Dometic Air Conditioner pigtail cable into the
female socket receptacle on the transformer. Thread the retaining nut of the plug
tightly onto the receptacle thread.
7.12
Close up all opened panels, replacing with identical fasteners as required.
8.0 Records:
8.1
All training records to be held by HR.
8.2
Sea Tel service personnel shall report this upgrade as provided in the service
department procedures.
9.0 Training:
9.1
All personnel involved in execution of this procedure/process shall be retrained and
certified as deemed necessary by the appropriate cell or management supervisor.
10.0 References:
The following documents are included in the upgrade kit and shall be available during
installation:
 Sea Tel drawing 134069,
Dometic AC Transformer Upgrade Procedure
(this document)
 Sea Tel drawing 134391,
Assembly, AC Buck Transformer Installation (Spider)
 Sea Tel drawing 134392,
Assembly, AC Buck Transformer Installation (81” Base
Frame)
 Sea Tel document 121730,
Loctite Application Procedure
 Sea Tel document 122305,
Sea Tel Fastener Torque Values
EAR Controlled - ECCN EAR99