Nortel DMS-100 Series Maintenance Manual page 579

Star Remote System routine maintenance procedures
17 Loosen and disconnect the strap that secures the batteries in the battery
compartment.
18 Disconnect the wires that connect the batteries together. Remove the
batteries.
19 Remove the battery tray. Lift up the left side of the battery tray and keep the
right side down. At this diagonal position, remove the battery tray.
20 Remove power from the heater element with faults by disconnecting the two
white in-line connectors in the wiring harness that exits the battery
compartment at the bottom right. The connectors are to the right of the
battery compartment. One wire is red and the other white. Also, use a 7mm
nut driver to remove the nut that secures the green and yellow ground wire for
the heater element.
21 Use a pair of small wire cutters to cut the two cable ties that fasten the heater
element wires in the cable harness outside the battery compartment.
22 Lift up on the heater element to free it from the three holding devices.
23 Get a new heater element and press it into the three holding devices.
24 Connect the two white in-line connectors in the wiring harness for the heater
element. One wire is red and the other white. Also, use the 7mm nut driver
to tighten the nut that secures the green and yellow ground wire for the heater
element.
25 Fasten the heater element wiring to the cable harness with new cable ties.
26 Install the battery tray.
27 Install the batteries. Connect the wiring between the batteries.
28 Tighten the strap that secures the batteries in the battery compartment.
29 Connect the battery fuse holder to the negative (-) battery terminal.
30 Set the main and rectifier circuit breakers on the ac panel to the ON position.
31 Close the SRMO cabinet door.
32 You have correctly completed this procedure. Return to the main procedure
that sent you to this procedure and continue as indicated.
Heater element replacement
DMS-100 Family NA100 Star Remote System XPM15 and up
13-21
SRMO
(end)