Seat Height In Back, Seat Slant; Steering Head Slant - SORG Jump alpha Service Record

3.1 Assembly group wheels

3.1.3 Seat height in back, seat slant

After each change made on the rear wheels the functionality of the wheel lock must be
checked and the casters must be newly adjusted.
Generally, the seat height in back is about 2-3 cm lower as in front, for a safe and comfortable seat
position with a good distribution of the seat pressure and to avoid a "sliding out". However, other
settings in individual cases can also be useful.
• (1) Remove the rear wheels,
• remove the side guards/skirt guards with
the screws (A) (easily remove the desk
side guard)
• (2) remove the quick-release axle fitting
including all washers in the alternative
holes (C)
• and retighten all screws. (tightening
torque nuts M18 fitting 35Nm).
• Mount the side guards and place the rear
wheels back in the quick-release axle.
The fittings must stick out of the perforated plate at the same length on both sides. The fittings
can only stick out so that the side distance of the tires to the side guard is as low as possible,
however a min. of 10mm.

3.1.4 Steering head slant

After every change on the rear wheel, the steer-
ing head slant must be newly adjusted.
To adjust the caster adapter:
• (3) remove all screws (A) on both (!)
sides,
• remove both screws (B).
• By tuning the adjust washer (C) (with a
flat head screw driver) place the adapter
in a vertical position (using an angle).
• Retighten all screws; screws (A) with 9
Nm, screw (B) with 7 Nm.
A falsely set steering head slant can lead to the casters shaking back and forth and can lead to
hindering curve rides (from casters).
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(1)
) A (
(3)
Service Record Jump alpha
(2)
(C)
(A)
(B)
(C)
(B)
2019-07-16