Service Manual

GSM-204-523
Replacing the internal batteries
31st Oct 01
Maintenance Information: Horizon macro outdoor
68P02902W04-A
CONTROLLED INTRODUCTION
Maint. 3–25
Battery
arrangement
Figure 3-12 shows how the batteries are arranged in the battery tray.
BATTERY 1
BATTERY 2
BATTERY 3
BATTERY 4
Figure 3-12 Internal battery arrangement in the battery tray
Removing the
battery tray
Carry out the following procedure to remove the internal battery tray from the
Horizon
macro outdoor cabinet:
WARNING
The batteries are capable of supplying high short circuit
currents and thus provide a high energy hazard.
CAUTION The battery tray is heavy. Take care when removing it from
the cage. Each battery cable must be insulated as soon
as it is disconnected from the terminal.
1. Isolate the batteries by switching off the circuit breaker on the battery tray
front panel.
2. Undo the two battery tray retaining screws on the lower front panel (see
Figure 3-11), and PARTIALLY withdraw the battery tray from the cage.
3. Using insulated spanners, disconnect the cables from the front positive
terminal and then the bottom breaker terminal. Disconnect the 4-way
battery sense lead Molex connector.
4. Slowly withdraw the tray until the retractable handle is exposed. With one
hand on the handle on the front panel and the other on the top handle, lift
the rear of the tray to disengage it from the cage and then gently pull the
tray completely out of the cage.
The procedure for removing the battery tray is now complete.
Replacement is a reversal of the removal procedure.