Rain Test; Field Load Test - Invacare Pronto M41 Series Service Manual

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Invacare - PRONTO M41
7.3

Rain test

Check to ensure that the RED and GREY battery terminal caps are secured in place, joystick
●
boot is not torn or cracked where water can enter and that all electrical connections are secure
at all times.
● Do not use the wheelchair if the joystick boot is torn or cracked. If the joystick boot becomes
torn or cracked, replace IMMEDIATELY.
7.4

Field load test

Old batteries lose their ability to store and release power due to increased internal resistance. In
this procedure, batteries are tested under load using a digital voltmeter to check battery charge
level at the charger connector. The charger connector is located on the joystick. When voltage at
the output drops 1.0 volts under load (2.0 for a pair), replace the batteries.
Note
Read these instructions carefully and the manufacturer's instructions on the digital voltmeter
before proceeding.
● Switch the electronics OFF on the remote.
● Make sure battery is fully charged. An extremely discharged battery will exhibit the same
symptoms as a bad battery.
● Remove the footboard from the wheelchair. Refer to chapter 8.13.
● Connect the voltmeter leads to the charger connector (1) on the wheelchair. Most digital
voltmeters (2) are not affected by polarity; however, analog meters (meters with swinging
needles) can be and should be used carefully. A good meter reading should be 25.0 to 25.8
VDC with the chair in neutral.
WARNING!
When performing the remaining steps, ensure your feet are clear from casters and wall,
otherwise injury may result.
SERVICE MANUAL
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