APR 2017 Chapter 28 Fuel System Page 28.3
28-10 Bladder Assembly
CAUTION
G028-1 bladder assembly temperature should be above 65°F
before removing, installing, or flexing bladder.
A. Removal
1. Defuel helicopter per § 12-42.
2. Remove tailcone cowling assembly per § 53-23.
3. Remove fuel quantity sender per § 28-21.
4. Refer to Figure 28-1. Remove D277-8 clamps or cut and discard safety wire
securing A729 tube to left rollover valve and pull tube off of valve. Remove
screws securing F250-1 cover assembly to G028-1 bladder assembly and F028-1
support assembly and remove cover. Remove and discard o-ring.
5. Remove D277-8 clamp or cut and discard safety wire securing A729 tube to right
rollover valve and pull tube off of valve. Remove screws and washers securing
valve to bladder and support. Cut and discard ty-rap securing 35486 hanger tab
to G915-5 tab.
6. Remove low-fuel switch assembly per § 28-22. Tape bladder openings.
7. Disconnect D205-21 (fuel outlet) hose assembly from B254-3 strainer and cap
fittings. Remove screws and washers securing strainer to bladder and support.
Remove strainer and tape bladder opening.
8. Remove sump valve per § 28-12.
9. Remove hardware securing G004-4 (right side, aft fuselage) skin to cabin and
remove skin. Detach bladder hook tape from support loop tape, and remove bladder
through right side opening.
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