TM 55-1520-240-23-3
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REPLACE NO. 1 DIGITAL ELECTRONIC CONTROL UNIT
(Continued)
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REMOVE
1.
Tag and disconnect two electrical connectors (1)
and hose (2) from digital electronic control unit
(3). Use tags (E264). Cap hose (2).
2.
Remove nut (4), washer (5), and bonding jumper
(6) from fuselage (9).
3.
With helper supporting the digital control unit,
remove four bolts (7) and washers (8).
4.
Remove digital electronic control unit (3).
INSTALL
5.
Clean bonding and mating surfaces (19) of digital
control unit (10), fuselage (11), and bonding
jumper (12) with aliphatic naphtha (E245) and
cloths (E120). Wear gloves (E184.1).
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