TM 5-6350-280-23&P
4.6.1.1 Removal.
WARNING
Do not disconnect UPS with source power on. Source voltage is 100, 120, 230, or
240 Vac. Always work with another person nearby who is familiar with hazards of
electronic equipment and is competent in administering first aid. Failure to obey
this warning could result in death or injury.
a.
Set power input breaker from facility to OFF position and tag "DO NOT SET TO ON POSITION".
b.
Remove UPS Power Cable from input terminal of UPS. Unplug CMA and computer from UPS. Remove UPS
cable assembly from AC INPUT FAIL ALARM connector.
c.
Remove six screws (1) from front cover (2) and six screws (1) from rear cover (2).
d.
Remove front cover (2) and rear cover (2).
WARNING
Do not touch batteries or allow terminals to come in contact with metal surfaces.
Each battery has a high current potential that can be fatal. Always work with
another person nearby who is familiar with hazards of electronic equipment and is
competent in administering first aid. Failure to obey this warning could result in
death or injury and equipment damage.
e.
Tag and disconnect batteries as follows:
(1)
Disconnect battery input quick disconnect connector.
(2)
Tag and disconnect last negative lead from battery number 6 by removing nut (4), lock washer (5), two flat
washers (6 and 7), bolt (8), and lead (9).
(3)
Tag and disconnect positive lead from battery number 6 by removing nut (4), lock washer (5), two flat
washers (6 and 7), bolt (8), and lead (9).
WARNING
Each battery weighs 77 lbs and requires two personnel to lift batteries. Failure to
observe this warning may result in personal injury.
(3)
Remove battery.
(4)
Starting with battery number 5 working in descending order, disconnect remaining batteries as follows:
a.
Disconnect lead that was connected to previously disconnected battery.
b.
Disconnect remaining lead and remove battery (3).
c.
Repeat steps a. and b. for remaining batteries.
f.
Position front cover (2) and rear cover (2) on UPS.
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