13.0 Maintenance and Cleaning
CAUTION!
It is important that you follow the following cleaning and
maintenance schedule in order to keep your wheelchair in
tip top condition.
13.1 Tyre maintenance and pressures
WARNING!
If pneumatic tyres are fitted to your wheelchair it is
important to regularly check the air pressure and for signs
of wear.
CAUTION!
The correct pressures are between the minimum of
137 kilo Pascals (20 psi, 1.37 bar) and the maximum
280 kilo Pascals (40 psi, 2.8 bar) for the drive wheels.
The pressure can be varied depending upon user
requirements.
NOTE: See side of tyre for max pressure and tyre size.
WARNING!
IT IS IMPORTANT that wheels on a common axle are
•
inflated to the same pressure as a pair.
The inflator pump, such as a foot pump, provides the
•
safest method of inflating your wheelchair tyres and
the pressure can be checked with a standard motor
vehicle pressure gauge.
Do not inflate beyond the maximum allowed tyre
•
pressure.
13.2 Tyre wear
WARNING!
Check the tyres weekly.
Bald or damaged tyres can cause punctures or reduce
traction, both of these problems can lead to loss of control
of the wheelchair .
When inspecting the tyres for signs of wear, look for
significant scuff marks, cuts and a diminished tyre tread.
Tyres will need to be changed when such damage is
evident or if the tread cannot be seen over the complete
surface of the tyre.
Rev.3.0
13.3 Drive wheel tyre repair
WARNING!
Wheel removal and tyre changing is a safety critical task.
If you do not feel confident in carrying out the following
instructions, please contact your Sunrise Medical
Approved Dealer.
• With the drive wheels on the ground, use a 5.0 mm
Allen key, (hex wrench), to loosen the FOUR studs,
(Fig.13.1).
• The button head studs protrude through to the back of
the wheel. Loosen the corresponding nylok nuts using
a 13.0mm spanner, (Fig.13.2).
• Lift the wheel off the ground & secure the wheelchair
with blocks or stands, (Fig.13.3).
• Remove the loosened studs and lift the drive wheel off
the hub, (Fig13.4).
• Ensure any air is expelled by pressing the valve with a
small screwdriver and squeezing the tyre, (Fig.13.5).
• Use a 6.0mm Allen key, (hex wrench), to undo the FIVE
rim studs in the order shown, (Fig13.6).
• Remove the inner rim, (Fig.13.7).
• Lift the tyre and tube off the outer rim, (Fig.13.8).
NOTE: Photos for the following steps are on Page 64.
• Gently get hold of the inner tube just behind the valve
and carefully feed the tube out of the tyre, (Fig.13.9).
To refit
Place the tube inside the tyre & rest it on the outer rim
•
With the valve stem aligned with the cut out in the rim.
•
Face the valve stem outward, (Fig.13.10).
Place the inner rim over the tyre, tube & outer rim.
•
Align the cut out to fit over the valve stem & match it
up to the cut out in the outer rim, (Fig.13.11).
Make sure the stud mounts are in line on both rims.
•
Tighten the studs in the sequence shown earlier
•
taking care not to pinch the tube, (Fig.13.6).
Slowly inflate to the pressure marked on the tyre.
•
Refit the wheel back onto the motor shaft and fix it
•
safely with the 4-bolts to a torque of 47Nm.
In case a solid tyre is used the wheel needs to be
replaced as a complete assembly.
The SALSA solid tyre drive wheel can be removed
and repaired/exchanged by following the procedure for
removing the drive wheel, as above.
63
Mini
SALSA M
2