Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
14.0 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.
14.1 Tyre maintenance and pressures
14.1.1 Tyre pressure
CAUTION!
If pneumatic tyres are fitted to your wheelchair it is important to
regularly check the air pressure and for signs of wear.
The correct pressures are between the minimum of 137
kiloPascals (20 psi, 1.37 bar) and the maximum 241 kiloPascals
(35 psi, 2.41 bar) for rear and front wheels (see side of tyre).
The pressure will need to vary, depending on the weight of the
user.
NOTE: It is important that front wheels are inflated to equal
pressures as a pair, and likewise the rear. The inflator pump
provides the safest method of inflating your wheelchair tyres
and the pressure can be checked with a standard motor vehicle
pressure gauge.
DANGER!
•
Do not inflate beyond the maximum allowed tyre pressure.
•
Always use the pump that is supplied with the chair,
•
Never use a forecourt pump
14.1.2 Tyre wear
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 the tread cannot be seen over the complete
surface of the tyre, (Fig.14.1).
Fig. 14.1
46
Puma 40 Sedeo Ergo
14.2 Drive wheel tyre repair
To remove the wheel/tyre:
Please see below and next page for photographs.
• Use a 8.0 mm hex key to loosen the 3-Socket studs, (Fig.
14.2).
• Jack the wheel up and support it using blocks,
• (Fig. 14.3).
• Remove the 3 studs and pull the wheel away from the hub.
• Remove the valve cap and let the air out of the tyre by gently
pressing the valve stem with a small screw driver, (Fig. 14.4).
• There are 6 rim studs that must be loosened/tightened in the
number order shown, (Fig.14.5).
• Use a 5.0 mm Allen key to release/tighten the studs. (Fig.
14.5) .
• Lift the inner rim off the tyre wall (Fig. 14.6).
• Lift the tyre and tube off the outer rim, (Fig.14.7).
• Gently get a hold of the inner tube just behind the valve.
• Carefully feed the tube out of the tyre, (fig.14.8).
• Ensure all parts are clean before reassembling, (Fig.14.9).
To refit
• Place the tube inside the tyre and rest the tyre on the outer
rim.
• Align the valve stem with the cut out in the rim.
• Face the valve stem outward.
• Place the inner rim over the tyre, tube and outer rim.
• Align the cut out to fit over the valve stem and match it up to
the cut out in the outer rim, (Fig.14.10).
• Make sure the stud mounts are in line on both rims.
• Tighten the studs in the sequence shown in Fig.14.5, taking
care not to pinch the tube.
• Slowly inflate to the pressures quoted in section 14.1.1 .
• Refit the wheel back onto the motor shaft and fix it safely
with the 3 studs to a torque of 47Nm.
For solid tyres the sequence is the same, just discount the
references to the inner tube and valve.
Fig. 14.2
Rev.C
Advertenties
Hoofdstukken
Inhoudsopgave
