Usage instructions SPEEDY F4 & F2
36
22.3.2 Caster fork with screw-on axle with
welded caster wheel bearing blocks
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
To
remove the caster fork
with screw-on
axle, a wrench is used which is included in the
scope of delivery. This wrench is inserted into
the two holes on the nut of the caster wheel
bearing block and turned anti-clockwise, e.g.
using an AF 24 mm fork wrench. The caster
fork needs to be held still. When the nut has
been completely removed, the caster fork can
be pulled out.
Figure 93: Loosen the nut of the caster wheel axle
using the wrench
Figure 94: Caster wheel axle nut completely re-
moved
When
mounting the caster wheel fork
with
screw-on axle, insert the caster wheel axle
back into the caster wheel bearing block, use
the supplied wrench to tighten up the nut of the
caster wheel axle again (hold the caster wheel
axle firmly) and secure it with thread lock.
The nut of the caster wheel axle may not be
tightened by more than 3 Nm to ensure it runs
smoothly. In case more sluggishness is de-
sired, this can be achieved using a higher
tightening torque.
22.3.3 Caster forks with quick-release ax-
les
The
caster fork with quick-release axle is
removed
using the locking knob on the inner
side of the caster fork. Grasp around the caster
fork and press the locking knob with your
thumb. The caster fork can now be pulled out.
Figure 95: Caster fork with quick-release axle and
locking knob
When
assembling the caster fork with
quick-release axle
, press the locking knob
again and insert the caster fork rotary axle into
the caster wheel bearing block. When doing
this, particular attention must be paid to ensur-
ing that the locking knob springs all the way
out again after attaching the fork, as the forks
are otherwise not secured correctly. You will
know that if you can see the index groove (Fig.
55).
Wrench
Caster wheel
bearing block
Nut on the
caster wheel
axle
Locking knob on
inside of fork
