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is mounted in a higher position in the cast-
er fork.
Top position
Middle position
Bottom position
Figure 2: Three positions in the caster fork for posi-
tioning the caster wheel and its effect on the front
seat height
The instructions for disassembly and assembly
of the caster wheels can be found in Chapter
22.1.
17.2 Adjusting the seat height at the
front by changing the caster fork
If the adjustment range of the existing caster
fork is insufficient, the next larger or smaller
one can be used.
In doing so, the bottom position of the fork size
1 is equivalent to the top position of fork size 2
and the bottom position of fork size 2 to the top
position of fork size 3.
13
Usage instructions SPEEDY F4 and F2
Size 3
185 mm
Angle of
seat/front
seat height
reduce
Angle of
seat/front
seat height
increase
Figure 3: Caster fork sizes with marking of the same
seat height settings with different caster fork sizes
The instructions for replacing the caster forks
can be found in Chapter 22.3.
17.3 General instructions
When changing the angle of seat or front seat
height each time:
Size 2
155 mm
the wheel track of the drive wheels must
be checked and readjusted if necessary
(see Chapter 21.2).
the caster wheel axles must be readjusted
(see Chapter22.4).
the backrest angle may have to be reposi-
tioned (see chapter 18.1).
make sure that there is sufficient ground
clearance under the footrest. Experience
shows that this should not be less than
4 cm (see Chapter 23).
if necessary, the height of the anti-tipping
support may have to be readjusted (see
Chapter 24.1.3).
Size 1
125 mm
125 mm
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