Aeros Discus 12, Owner'S Manual

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16
MAINTENANCE
This section contains a recommended schedule of periodic maintenance. None of the items in this section are a substitute
for the continual and consistent practice of proper pre-flight inspections and immediate maintenance of any items on the
glider, which require it. Safety requires that your glider be fully airworthy for every flight. Nuts and bolts must always be
secure, safeties must always be in place, and damage to any part, which could compromise the airworthiness of the glider,
cannot be tolerated. If you have a question about the need to repair or replace some part of your glider, feel free to contact
your dealer or Aeros directly. It is not always obvious which items require attention and which may not. Minor dents or dings
in a non-critical location on an airframe tube may not require any repair or maintenance. On the other hand, a wire that has
been kinked one time can fail very quickly after that, and should be replaced immediately.
We recommend that you have all maintenance work done by your Aeros dealer.
EVERY SIX MONTHS
1. Check the adjustment of your outboard sprogs, as described in the last section.
2. Check your battens on a flat level floor against the batten diagram provided, and correct any that deviate from the
pattern by more than 6 mm (1/4").
3. If you fly in a dusty or sandy environment, it will help to prolong the life of your batten pockets if you wipe each batten
with a rag before you install it in the sail.
4. Have a complete inspection performed on the glider and replace any suspension system component that shows any
wear, and any cable that shows any kinks, wear, damage, corrosion, etc.
5. Inspect all bolts for tightness, all safeties for proper installation and possible damage. Inspect plates and fittings for
damage, holes in tubes for elongation.
6. Inspect the sail for wear, tears, UV damage, loose stitching, etc.
7. Disassemble basebar pulley assembly, clean, lubricate with white grease, and re-assemble.
8. Lightly spray all zippers on the glider with silicone spray lubricant. Also spray your battens before you install them in the
glider to lubricate the insides of the batten pockets. Do not use any other type of lubricant. Wipe off any excess silicone so
that it does not attract dirt.
9. Inspect the sprogs, sprog hardware and sprog cables. If the sprogs have been loaded heavily, it is possible that the
sprog tubes may have been bent, and the cables may have been stretched.
EVERY YEAR
In addition to the normal six month service items, also perform the following:
1. Have the sail completely removed from the frame, and disassemble all frame components. Inspect every part of the glider
for any damage or wear. Inspect the tubes for straightness and for signs of corrosion. Note that the rear leading edge is
secured in the front leading edge by two eccentric reducers. As a result, the rear leading edge is at an angle to the front
leading edge and the leading edge as an assembly will appear to be slightly bent out and up at the junction. This is normal
and by design.
2. Anytime you have the sail off the frame, turn the sail inside out through the bottom surface center zipper and inspect all of
the batten pockets and batten pocket terminations.
3. Replace bottom side wires and hang loops.
4. Replace the VG ropes.
5. Remove the transverse battens and inspect for damage.