Service manual

Course # 1 Manual
Rev. 1/02 page # 13
Service & Parts Education
12
REMOTE PROGRAMMER BATTERY QUALITY MENU INSTRUCTIONS
(can be found in the calibration menu on all chairs)
BATTERY QUALITY
BATTERY IS NOW 25.6 V
LOAD TEST WAS GOOD
@00008HR, NOW = 00016HR
TOTAL AH =00024
The first line gives the current battery voltage. Fully charged batteries should indicate 25.0 Volts
or above. The battery voltage must be over 25 Volts, and the chair must be driven for more than
five minutes in order for the controller to perform a load test. Refer to the last paragraph for a
further explanation.
The second line gives the load test condition of the battery.
The possible results are:
GOOD = means the batteries are fine.
POOR = means the batteries may affect the performance of the
chair under heavy loads, but do not need to be replaced yet.
BAD = means the chair performance will be affected even
immediately after recharging and that they should be replaced.
UNKWN = means that the conditions for a load test have never been
met and the test has not been performed.
The third line shows the hour meter reading when the load test was performed and the current
value of the hour meter. A comparison of the two values will give an indication of how recent
(and therefore the validity) the load test was performed. The hourmeter indicates the number of
hours that the chair has been driven. Leaving the chair on, but not driving does not add time to
the hourmeter.
The forth line shows the number of Amp-hours (AH) that have been consumed by driving the
chair. This value can be useful when checked at the beginning of the day and again when the
batteries have discharged to indicate battery capacity. If the AH value is much lower than the
battery manufacturers specification, the batteries may be bad or the charger could be under-
charging. Independent checks should be made.
The following Conditions must be met in order for the controller to update the Load test
results.
a.) The chair must be in neutral for 2 minutes or more.
b.) The battery voltage is between 25.0 and 25.6 (or higher) volts when driving begins.
c.) Within the next five minutes of driving the battery current must be between 25 and 35
amperes for 100 msec.
The load test results and the current hour meter value is stored in EEPROM when the chair is
later put in neutral. The possible test results are: GOOD for 0-2 volt drop, POOR for 2-2.5 volt
drop, and BAD for greater than 2.5 volt drop.