16
f) Stability of the rail
Check all the xing screws of the connections to the
mounts and any expansion plugs present.
g) General checks
Check all moving parts, the guards, labels and signs.
Check the batteries and the warning lights of the power
supply unit.
h) Rail cleaning
Clean the rail thoroughly.
Annual checks:
a) Controls
Check their operation by trying out the stairlift in all
functions from on board and from the control boards at
the oors in the working modes envisaged.
Make sure that the system has not been tampered with
or modied.
b) Floor control panels
Check that these devices are operating correctly.
c) Electrical system
Check that all electrical components, contactors and
microswitches are operating correctly.
Check the continuity of the earth conductors.
Check that the earth conductors are properly connected
to earth.
d) Testing for stairlifts with sections of rail having
gradient of less than 20°
Move the stairlift to the area with gradient of more than
25° and check that the cam drive roller is 0.5÷1.5 mm
from the cam (see Fig. 64 page 41).
Then move the stairlift to the area with gradient of less
than 20°, and place a weight of 250 kg on it with its
centre of gravity 150 mm from the edge (see Fig. 63
page 41).
Check that the stairlift does not tilt by more than 2°.
e) Check the tension of the drive chain and stretch it as
described at point 19 on page 40 if necessary.
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