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Operating instructions TRAVELER 4all Ergo & 4you Ergo
22.1 Removing and attaching the drive
wheels
Locking knob of the quick-release axle
Figure 70: Locking knob of the quick-release axle in
the middle of the wheel axle
To remove the drive wheels grip through the
spokes around the wheel hub with your fingers.
By pressing the locking knob in the middle of
the wheel axle with your thumb, the wheels
can then be removed.
When attaching the drive wheels, the locking
knobs must be pressed and the drive wheels
with quick-release axle must be inserted in the
drive wheel bushings. When doing this, special
attention should be paid to ensure that the
locking knob springs out again after attaching
the wheel, as otherwise the wheels are not
properly secured. You will know this if you can
see the index groove.
Figure 71: Quick-release axle with index groove
Before using the product, check if the
wheels are secured and that the quick-release
axles are locked.
Index groove
22.2 Checking and adjusting the wheel
tracking of the drive wheel
Well adjusted wheel tracking significantly im-
proves the easy running characteristics of the
product. To check the tracking, proceed as
follows:
Position the product on a level surface and
secure 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 dis-
tance 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.
Axle height
•
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