86 10... Adjusting spring force accumulator

The spring force accumulator requires no maintenance and generally does not need to be readjusted. 

Adjustment dimension, spring force accumulator: distance between end of support tube - internal washer (1) is 90 mm.

Fig 1: Identifying Distance Between End Of Support Tube And Internal Washer

Courtesy of BMW OF NORTH AMERICA, INC.

To tension spring force accumulator: turn nut (2) located in support tube (1) clockwise.

To relieve tension on spring force accumulator: turn nut (2) located in support tube (1) counterclockwise.

Fig 2: Identifying Support Tube With Nut

Courtesy of BMW OF NORTH AMERICA, INC.