Tyre Maintenance And Pressures - Sunrise Medical QUICKIE Q700 R Instructions For Use Manual

8.2 Tyre maintenance and pressures

8.2.1 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 maximum tyre pressures are listed in Section 8.3, if in
doubt check the markings on the side of the wheelchair tyre
for guidance.
NOTE: It is important that drive 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.
8.2.2 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.8.1).
Fig. 8.1
36
8.2.3 Drive wheel tyre repair
To remove the wheel/tyre:
Please see below and next page for photographs.
• Remove the colour ring.
• Use a 16 mm AF lug nut to loosen the 3-Socket studs, (Fig.
8.2).
• Jack the base/battery box up and support it using blocks,
(Fig. 8.3).
• 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.
8.4).
• There are 6 rim studs that must be loosened/tightened in
the number order shown, (Fig.8.5). Use a 5.0 mm Allen key
to release/tighten the studs.
• Use a 5.0 mm Allen key to release/tighten the studs. (Fig.
8.5) .
• Lift the inner rim off the tyre wall (Fig. 8.6).
• Lift the tyre and tube off the outer rim, (Fig.8.7).
• Gently get a hold of the inner tube just behind the valve.
• Carefully feed the tube out of the tyre, (Fig.8.8).
• Ensure all parts are clean before reassembling, (Fig.8.9).
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.8.10).
• Make sure the stud mounts are in line on both rims.
• Tighten the studs in the sequence shown in Fig.8.5, taking
care not to pinch the tube.
• Slowly inflate to the pressures quoted in section 8.1.1 .
• Refit the wheel back onto the motor shaft and fix it safely
with the 3 studs to a torque of 34Nm.
For solid tyres the sequence is the same, just discount the
references to the inner tube and valve.
Q700 M/M HD/F/R Rev.F