SECTION IV
Maintenance
Page 4.8
BP+2.9X
11/95
4.6 Battery Maintenance (continued)
4.6.3
Inspection and Periodic Maintenance (continued)
7. If not removed and cleaned, torque all cable connector bolts to battery
manufacturer's retorquing specifications.
8. Repeat until all battery trays have been inspected, cleaned and greased.
Do one tray at a time and be sure to return tray to its original location. Bolt in place.
Trays are numbered in accordance with Figure 4-1 or 4-2 on Page 4.11.
9. Retighten power cable connections between the DC Disconnect switch
and the UPS. Refer to torque table in Paragraph 2.7, AC Power Connection.
10. Reconnect the battery trays to each other as described in Paragraph 2.8,
Activating the Battery Pack. Close the battery pack door.
4.6.4
Battery Test
Batteries should be tested whenever a battery-related problem is suspected
or at annual intervals. The procedure described is for individual batteries and
requires the use of a Balkamp 700-112 Battery Tester or equivalent. The Balkamp
unit is available at most NAPA auto parts stores or from IPM.
The tester is rated for 100 amps, 12 vdc. It checks voltage under load.
Batteries should be tested in their fully-charged state, but not within 24
hours of having been equalized (recharged). Batteries should be left in their trays
during testing.
1. Perform Maintenance Shutdown procedure (Paragraph 4.6.2).
2. Remove two bolts and slide out the desired battery tray onto a lift hand
truck.
CAUTION
The battery tray weighs as much as
200 lbs (91 kg). Use lift hand truck to remove it.
