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TRAVELER usage instructions
Red marking = drive wheel
can be removed
Figure 70: Tetra Clip with opened quick release
axle, drive wheel can be removed
22.2 Checking and adjusting the wheel
tracking of the drive wheel
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
Well adjusted wheel tracking significantly im-
proves the easy running characteristics of the
product. The wheel tracking is already adjusted
precisely via track spacers before delivery.
When changing the wheel plate position, the
track spacers must always be reinstalled ex-
actly as they were ex-factory upon delivery.
Figure 71: Two track spacers with different material
thicknesses
To check the wheel track or the correct posi-
tioning of the track spacers, e.g., after chang-
ing the position of the wheel plate, proceed as
follows:
Position the product on a level surface and se-
cure the product against rolling away.
Measure the axle heights (from the ground to
the drive wheel axle) and write this dimension
onto both tyres at front and back.
Drawing the axle height onto tyres
Figure 72: Drawing the axle height on the front and
back of both tyres
Afterwards measure the distance between the
drive wheels front and back at the height of the
axles along the markers. Ideally, the distance
between the two drive wheels should be the
same size at the front and back. In general it
can be said that the distance between the drive
wheels at the front may not be larger than at
the back. Apart from that, the distance at the
back may not be more than 5 mm larger that at
the front. If this is not the case, the wheel
tracking needs to be corrected. In this case,
check the correct positioning of the track dis-
tances.
Axle height
•
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