TRAVELER 4all Ergo & 4you Ergo usage instructions
38
axle can be pulled out from under the caster
wheel bearing block.
Figure 96: Aluminium cap
Figure 97: Aluminium cap removed and M12 nut
visible
To
assemble the caster fork with screwed
axle,
this is inserted into the caster wheel
bearing block with the caster wheel for rotary
axle. Then the M12 nut (AF 19 mm) is tight-
ened again to 3 Nm and secured with thread-
locking fluid. Then the aluminium cap is
pressed back onto the caster wheel bearing
block.
For the rotary axle to run smoothly, the M12
nut must not be tightened to more than 3 Nm.
In case more sluggishness is desired, this can
be achieved using a higher tightening torque.
23.3.2 Caster forks with quick-release
axles
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 98: 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. 68).
23.4 Adjustment of the caster fork
rotary axles
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
To ensure that the product has good properties
when steering and driving straight ahead, the
caster wheel axle should be adjusted to be
vertical to the level ground.
Adjustments on the caster wheel axles can be
required for the following reasons:
M12 nut
Locking knob on
the inside of the
fork
Aluminium cap