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Proper Occupant Restraint
The wheelchair provides for anchoring a pelvic-belt restraint that conforms with the
requirements of RESNA WC-4 Section 19, Wheelchairs used as seats in motor vehicles
and can be used in conjunction with a vehicle-anchored shoulder belt with standard lower-
anchorage connector as a crashworthy three-point-belt restraint in motor vehicles.
The angle of the pelvic-belt restraint should be between 30 and 75 degrees relative to the
horizontal and, ideally, between 45 and 75 degrees relative to the horizontal (Figure 31).
Figure 31. Preferred angles for pelvic belt restraint
Steeper side-view pelvic belt angles are especially important if the pelvic belt is intended to
be used for postural support in addition to occupant restraint in a frontal crash. Steeper
angles will reduce the tendency for a vertical gap to develop between the user and the belt
due to compliance of seat cushions and belt movement, thereby reducing the tendency for
the user to slip under the belt and for the belt to ride up on the soft abdomen during normal
use.
Steeper belt angles also reduce the tendency for upper-torso belts to pull the pelvic belt
onto the abdomen during frontal impact loading.
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•
Battery charging should only be performed indoors. Exposing the battery charger to
any moisture, water, or other elements may result in fire or electric shock.
•
To reduce the risk of fire or electric shock, do not use extension cords with the
battery charger. Use of extension cords may result in damage and/or injury.
•
To reduce the risk of fire or electrical shock, do not leave the Model M plugged in
and continuously charging for more than one week. Extended charging of the Model
M may result in damage and/or injury.
•
Keep the wheelchair and battery charger away from sources of ignition, such as
flames and sparks, because the battery can generate explosive gasses while
charging.
•
Carry out charging with the wheelchair in a space at least twice its volume, with
sufficient ventilation that there is no hazard due to build-up of flammable gas.
•
Do not use the battery charger to charge other batteries.
•
Do not carry the battery charger on the wheelchair.
Electromagnetic Interference
•
Electromagnetic Interference (EMI) from external sources can impact braking and
control of the Model M. Unintended brake release or Model M movement could
result in serious injury. To prevent this:
o
DO NOT operate hand-held transceivers (transmitters/receivers), such as
citizens band (CB) radios, or turn ON personal communication devices, such
as cellular phones, while the powered Model M is turned ON;
o
Be aware of nearby transmitters, such as radio or TV stations, and try to
avoid coming close to them;
o
If unintended movement or brake release occurs, turn the Model M OFF as
soon as it is safe;
o
Be aware that adding accessories or components, or modifying the powered
Model M, may make it more susceptible to EMI;
o
Report all incidents of unintended movement or brake release to the powered
Model M manufacturer, and note whether there is a source of EMI nearby.
Section 6 of this user manual contains more information on EMI and how it can
affect the Model M. To properly understand EMI, please read Section 6.
N026935.01F
320-00630-DHF.DO-01 User Manual Model M US rev 12internal print-paginated-side.pdf
Aug 15 2017 16:01:21
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