Invacare Wheelchair Pronto M61, User Manual

Page: 52 / 68

Invacare® Pronto™ M61 Series with SureStep®
8.4.2 Repairing flat tires
CAUTION!
Risk of explosion
The wheel explodes if the air pressure has not been
released from the wheel before the wheel rim is
removed.
– Always let all the air out of the tire before removing
the rim.
Tools:
•
1/2” socket wrench
•
repair kit for tire repair or new inner tube
•
talcum powder
1. Remove the drive wheel. Refer to 8.4.1 Removing/Installing the
drive wheel, page 50.
2. Let the air escape completely out of the tire by pressing the pin
in the centre of the valve firmly in.
3. Remove the four mounting screws A , locknuts G and washers
F .
4. Remove the wheel rim halves
B
and
D
from the wheel
C
.
5. Remove the inner tube from the wheel.
6. Repair the inner tube and re-fit it, or replace it with a new one.
If the old inner tube has been repaired and is to be
used again, and became wet during repair, it is easier
to replace it if it is lightly dusted with talcum powder
beforehand.
Installation takes place in reverse order. Always ensure
that the wheel is replaced on the same side and in the same
direction as it was removed.
7. Apply the wheel rim halves to the wheel again.
When installing the outer rim into a pneumatic tire
ensure the valve stem of the inner tube protrudes
through the stem opening in the outer rim.
8. Insert the hub
E
into the inner rim
D
and align the four
mounting holes of the hub and the wheel rim halves.
Ensure that the inner tube is not clamped between the wheel
rim halves.
9. Ensure that the tire is contacting the wheel rim directly.
10. Secure the outer rim to the inner rim and hub with the mounting
screws, washers and locknuts.
Tighten the locknuts with 20 Nm (± 10 %).
11. Inflate the tire to the recommended pressure. Refer to the
Technical specifications in the User Manual.
12. Ensure that the tire is still closely contacting the wheel rim.
13. Install the drive wheel. Refer to 8.4.1 Removing/Installing the
drive wheel, page 50.
8.5 Short term storage
In case a serious fault is detected, a number of safety mechanisms are
built into your mobility device and will protect it.
The controller prevents your mobility device from driving.
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