Air Pressure; Other; Caster Wheels - PRO ACTIV LITTY 4you Operating Instructions Service Booklet

Operating instructions LITTY 4you Operating instructions LITTY 4you
may not be more than 5 mm larger that at may not be more than 5 mm larger that at
the front.
Distance
Markings
Figure 20: Distance between the markers on the : Distance between the markers on the
tyres (at axle height), back
5. If all the distances are correct, then use an If all the distances are correct, then use an
open-ended spanner (AF 22 mm) to hold ended spanner (AF 22 mm) to hold
the drive wheel bushing in position and the drive wheel bushing in position and
tighten the aluminium locking nut (AF 41
mm) with a tightening torque of 70 Nm. mm) with a tightening torque of 70 Nm.

17.3 Air pressure

Check the tyre pressure at regular intervals Check the tyre pressure at regular intervals
and after being subjected to extreme temper and after being subjected to extreme tempera-
tures. The maximum and if applicable, min tures. The maximum and if applicable, mini-
mum tyre pressure is printed on the side of the mum tyre pressure is printed on the side of the
tyre.
If the tyre pressure is too low, then optimal If the tyre pressure is too low, then optimal
functionality of the knee lever brake is not e functionality of the knee lever brake is not en-
sured. Apart from that, there is an increased sured. Apart from that, there is an increased
risk of a flat tyre.
The tyre pressure increase with the te The tyre pressure increase with the tem-
perature. If the pressure is too high, the tyre perature. If the pressure is too high, the tyre
may burst. For this reason, wheelchair tyres burst. For this reason, wheelchair tyres
may not be exposed to unusually high te may not be exposed to unusually high tem-
peratures such as in a sauna or under glass in peratures such as in a sauna or under glass in
the summer.

17.4 Other

If tyres, inner tubes or hand rims need to be If tyres, inner tubes or hand rims need to be
replaced, please contact your specialist r replaced, please contact your specialist re-
tailer.
locking nut (AF 41

18 Caster wheels

18.1 Replacing the caster wheels Replacing the caster wheels
To remove a caster wheel, unscrew the M6 a caster wheel, unscrew the M6
axle fixing screw (AF 4 mm) out on one side. axle fixing screw (AF 4 mm) out on one side.
M6 axle fixing screw M6 axle fixing screw
Figure 21: Axle fixing screw on caster wheel axle : Axle fixing screw on caster wheel axle
Aluminium axle with
hexagon socket
Figure 22: Caster wheel with aluminium axle : Caster wheel with aluminium axle
Now you can see the aluminium axle with a Now you can see the aluminium axle with a
hexagon socket (AF 4 mm). This hexagon hexagon socket (AF 4 mm). This hexagon
socket is used to fix the axle in place, while the socket is used to fix the axle in place, while the
second axle fitting screw (AF 4 mm) (Fig. 21) is second axle fitting screw (AF 4 mm) (
unscrewed. To do this, insert the Allen key (AF unscrewed. To do this, insert the Allen key (AF
4 mm) into the hexagon socket on the alumi 4 mm) into the hexagon socket on the alumin-
ium axle and hold it still. At the same time, ium axle and hold it still. At the same time,
unscrew the remaining M6 axle fixing screw unscrew the remaining M6 axle fixing screw
(AF 4 mm) on the other side. (AF 4 mm) on the other side.
When attaching the caster wheel, procee the caster wheel, proceed as
described above in reverse order. The tighte described above in reverse order. The tighten-
ing torque for the axle fitting screw (AF 4 mm) ing torque for the axle fitting screw (AF 4 mm)
is 7 Nm. The axle fitting screws need to be is 7 Nm. The axle fitting screws need to be
secured with thread lock fluid. secured with thread lock fluid.
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