DG Flugzeugbau LS8 - Adjustment of Water Ballast System LS8-A, LS8-B, LS8-18, Instructions for All Versions; Adjustment of Water Ballast System LS8-A and LS8-18 with Slide in Tail Fin Tank

Maintenance Manual LS8
Issued: December 2009
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
4-13
4.4.2 Adjustment of water ballast system LS8-a, LS8-b, LS8-18
4.4.2.1 Adjustment of water ballast system LS8-a, LS8-b, LS8-18,
instructions for all versions
Note: To determine which version water ballast system is installed in your LS8
please refer to the sketches in sections 1.9 up to 1.13.
Sketch 1
Root rib drain valve
(1) - Opening for inner tank
(2) - Tube from outer tank:
LS8-a: may be closed in single cases after malfunction
LS8-b: with free passage
LS8-18: may be closed in some cases after malfunction
4.4.2.2 Adjustment of water ballast system LS8-a and LS8-18 with slide in
tail fin tank
(1) Before adjusting wing system, check ventilation tubes No. 2 and 4 (see
sketch section1) and draining tube No. 5 free from clogging.
a) Only LS8-a with winglet ventilation: Cleaning of ventilation tubes 2
and 4 possible from the tip. check vent holes 9 according to sketches
in section 1.13.
b) All variants with ventilation at the root rib: Cleaning of ventilation
tubes 2 and 4 possible from root rib after removing two plugs at root
rib.
c) Cleaning of tube 5 after removing drain valve at root rib (See sketch 1
in section 4.4.2.1).
d) Reinstall the 2 plugs and the drain valve.
(2) For adjustment of wing system (see sketch 2), after disassembly of
baggage compartment cover, remove tail fin tank drive >1< from right
wing drive lever, (Lift ball joint from ball against preload of securing
ring) and extend cable with nylon cord to avoid disappearing into
fuselage.
(3) Check cockpit operating toggle lever for overcenter in open position.
(4) Adjusters at >2< and >3< see sketch 2 are used for adjustment of
bowden cable synchronisation and simultaneous opening.