progeo VARIO CARBON, Руководство по обслуживанию

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Service Manual VARIO CARBON 15
SERVICE MANUAL
CAMBER AND CONVERGENCY
A
DA
DP
L
Slightly move away the rear wheel to get access to
the receiver
B and get hold of it with the spanner.
Check the receiver B is correctly orientated as above
mentioned, otherwise, adjust it now.
Loosen the nut
A (that fixes the receiver B ) just
enough to be able to turn the receiver with the span-
ner, but without creating play.
To understand to what direction and to what extent the wheel moves sideward, try to observe its move-
ment while turning the receiver clock and anticlockwise. You can measure it with the difference of the
distance
L (always with the wheel fully inserted into the receiver) before and after turning the receiver.
If the distances L at right and at left are different, move one wheel closer or move the other away in
order to make them the same.
Now, measure the front distance
DA and the rear distance DP.
If the front distance DA is wider than the rear distance DP , you have to turn the receiver to draw the
wheel near the front frame.
If the front distance DA is narrower than the rear distance DP , you have to turn the receiver to move the
wheel away from the front frame.
Every time you turn the receiver, it is advisable to insert the wheel and measure the change of the dis-
tance
L and the distances DA DP .
Example 1 : DA 8 mm wider than DP (the wheelchair will not be very fluent), we have to decrease the
DA by 4 mm, in fact, by doing so, we will also increase the DP by 4 mm; one deduces that the adjust-
ment for each wheel is 2 mm.
At this stage,
DA and DP will be the same.
Example 2: DA 6 mm narrower than DP and distance L right 2 mm wider than L left.
We have to increase DA by 3 mm but we also have to equal the distances L .
We thus increase the distance L left by 2 mm.
By doing so, we have also increased DA by 4 mm, therefore, the difference DA - DP is now 6 – 4 = 2
mm. It can already be good, or we can make it better if we adjust each wheel by 0.5 mm: DA increases
by 1 mm and DP decreases by 1 mm, therefore a total of 2 mm; finally, DA = DP mm (6 - 4 – 2 = 0).
After adjustment, tighten the nut D hard while holding the receiver B . It is not necessary to remove the
wheel, but move it away just enough to make the receiver accessible.
Narrow side UP
Wider side DOWN
B