TMM Series Stretcher-Chairs
Trouble-Shooting Guide
TMM-SCTG
Page 3 of 12
Rev C - 072816
BATTERY TESTING
For “B” battery powered chairs, determine if the battery on the device is charged and in good working
condition.
-
Using a voltage meter, check the voltage of the battery. A fully charged battery should have a
reading of over 26 volts.
-
The green light on the pendant will turn to amber if the battery is near or below 24.6 volts.
-
If the battery is showing a charge of above 24.6 volts but the chair is not functioning, the battery
testing protocol can be used to determine if the battery is in need of replacement. The battery
testing protocol can be found by following this link:
"B" Battery Testing Protocol
For “A” (AC Powered) chairs, ensure the device is plugged into a working 120V outlet.
-
AC powered chairs require working batteries even when plugged into an AC outlet
-
For testing AC Powered chairs built during or after February of 2012 email
and request the installation and maintenance manual (IM TMS-1066-
03). This manual describes how to change the battery pack but can also be used to remove the
pack to test the batteries.
-
For testing AC powered chairs built
prior to February of 2012
follow this link:
"AC" Battery Testing
Protocol
Once you have determined that the battery is charged and in good working condition, use the
following instructions to continue troubleshooting the device or return to the
“
General Issues
”
page.
