SENS
®
DC PowerCab
™
120
8/24/2017
16
755-00129 R04
8.
S
YSTEM
M
AINTENANCE
8.1
B
ATTERY
R
EPLACEMENT
1.
Prepare the new battery for installation. Verify that the battery is the same type and amp-hour
rating as the batteries that are in the system.
2.
Using a digital voltmeter, measure the battery voltage to verify that it is 12.4 VDC or above.
3.
Use a brass wire brush or abrasive pad to polish the battery terminals.
4.
Apply no-ox type terminal grease to the battery terminals to avoid corrosion.
5.
Disconnect the loads from the battery string by turning off/opening the Battery Main circuit
breaker on the panelboard.
6.
Remove the center jumper on the battery string to reduce the voltage. If replacing all batteries,
continue reducing the voltage by removing the inter-shelf jumper.
7.
Disconnect the cables from the battery to be replaced.
8.
Remove the bad battery.
Before proceeding with system maintenance, be sure to review and understand all of
the SAFETY PRECAUTIONS in this manual!
Verify that the Battery Main breaker on the panelboard and Charger AC Main
breaker (on the charger unit) are in the off/open position before servicing the system.
When batteries are replaced they must be properly installed paying special attention
to terminal polarity orientation! If wired incorrectly it will cause a short in the system
and can result in electrical shock, severe burns, fire and possible death! Be sure to
review the system schematics before terminating any battery cables.
Caution: Risk of explosion if batteries are replaced by an incorrect type.
Do not dispose of batteries in a fire. The batteries may explode. Contact your local
hazardous waste or recycling center for battery disposal requirements.
Do not discard batteries in the trash. This product contains sealed lead acid
batteries. Contact your local hazardous waste or recycling center for battery
disposal requirements.