Shock Absorber; Adjusting The Hydraulic Compression Damper (High And Low Speeds); Adjusting The Spring Preload - Beta RR 390 Manual

C
d

ShOCk aBSORBER

adjuSTiNG ThE hydRauliC
COmpRESSiON dampER (hiGh
aNd lOw SpEEdS)
The shock absorber can be adjusted for
both high and low speeds. The terms 'high'
and 'low' refer to the compression speed of
the shock absorber, not to the speed of the
vehicle. The low-speed adjustment affects
the behaviour of the shock absorber during
low-speed compression; conversely the
high-speed adjustment affects its behaviour
during high-speed compression.
Low-speed adjustment
• Using a screwdriver, loosen screw C
by turning it clockwise to increase the
hydraulic compression damper.
Standard adjustment RR 4t:
22 clicks from fully closed
High-speed adjustment:
• Turn knob d anticlockwise to decrease
the hydraulic compression damper.
Standard adjustment RR 4t:
22 clicks from fully closed
WARNING
Starting from the standard position, turn
the knob anticlockwise (with a closing ac-
tion), the center screw will have an integral
movement, then will rotate with the knob.

adjuSTiNG ThE SpRiNG pRElOad

To adjust the spring preload, use the proce-
dure described below. Loosen counter-ring
E, Rotate ring f clockwise to increase
E the spring preload (and consequently the
shock absorber preload) or anticlockwise
to decrease it. After obtaining the desired
f
preload, turn counter-ring E until it stops
against adjusting ring f.
63
4
GB