CHAPTER 28
PAGE 29
MAINTENANCE MANUAL EXTRA 300/SC
PAGE DATE: 1. August 2014
MAINTENANCE PRACTICES
7 Install in reverse sequence of removal after applying 3M
Brand Fuel Resistant Coating 776 (3M, St. Paul, USA) for
sealing to both sides of the sealing ring.
For the Datcon system: Torque sealing screws to 9-12 in.lbs.
(1-1.4 Nm). Do not over-torque.
8 Allow sealing compound to thoroughly dry for approxi-
mately 24 hours at room temperature.
9 Check fuel tanks for leakage at the sender flange and mount-
ing bolts.
28-40-04 Lever-type Tank Unit (Wing Tank)
Removal/Installation
(refer to Figure 13 below)
1 Disconnect the electrical wiring.
2 Remove LH inspection door (refer to Chapter 28-10-03)
3 Remove tank unit bolts (1).
4 Remove the retainer ring (3) the tank unit (4) and the seal-
ing ring (2).
Figure 13 Lever-type Tank Unit (Wing Tank)
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