General

The LIGHTNESS 4 is delivered with a built-in main protector, SAS-TEC, comfort foam, mounted speedbag incl. acceleration system, footboard and step-in-aid. All individual parts can be easily removed, e.g. to carry out any repairs or to replace them.

1. SAS-TEC

The SAS-TEC is stored in a separate compartment. To remove it, open a horizontal zip on the left-hand side of the harness at about the height of the air inlet and pull the SAS-TEC out of its compartment. To reinstall, proceed in reverse order.

2. Comfort foam

The comfort foam is stored in a separate compartment. To remove it, open the side compartment in the same way as the SAS-TEC and pull out the SAS-TEC first, then open the horizontal zip in the middle to pull the comfort foam out of its compartment. To reinstall, proceed in reverse order.

3. Main protector

The main protector compartment is located under the seat area. Open the zipper at the bottom of the harness. Then pull out the foam protector. When reinstalling, make sure that the protector is installed correctly. The areas are marked in green. Then close all zippers correctly.

Footboard

To replace the carbon footboard, remove it from its compartment in the nose pocket of the leg bag (open twice a zip) and insert the new one. Make sure to insert the footboard in the center.

Speed system

Unloop the Brummel hooks and pull the speed bar lines out of the Ronstan pulleys on either side of the harness. To reinstall, reverse the procedure.

{INFO.}The elastic tensioner in the foot area can be replaced separately.

WarningCheck the routing of the speed bar lines and the speedbag lines. These must not cross each other, danger of chafing!

WarningUse only the original accelerator lines. A different line or even an accelerator bar could damage the leg bag and the harness considerably due to friction.

4. Speedbag

The LIGHTNESS 4 is delivered with a mounted speedbag as standard. To mount a new speedbag you have to remove the old one first. Proceed as follows:

WarningWhen replacing a speedbag, always use the speedbag lines belonging to the respective speedbag.

Remove speedbag

Detach the foot accelerator.
Detach the suspension loops from the main carabiners.
Open the zippers on both sides.
Open the Velcro on the bottom of the harness.
Loosen the two lower gray speedbag lines that connect the speedbag to the harness.
To do this, loosen the anchor stitch knot under the adjustment tube and release the gray line completely from the black tab on the edge of the seat shell.

Installing the speedbag

Pull the upper end of the gray speedbag line through the black loop at the edge of the seat shell.
Form an anchor stitch with the upper loop of the leash and pull the lower, red sewn part of the leash through it.
Tighten the anchor stitch behind the adjustment tube.
Close the zippers that attach the speedbag to the harness.
Attach the speedbag cover to the bottom of the harness.
Fix the suspension loops in the main carabiners.

WarningIt is mandatory to fix the suspension loops in the main carabiners otherwise the speedbag zippers will be damaged. Attach the foot accelerator as described in the manual.

5. Windshield

See instructions in the "Flight preparation" chapter.

Product manual

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