Service Manual

GSM-204-523
Replacing the front panel or fan
31st Oct 01
Maintenance Information: Horizon macro outdoor
68P02902W04-A
CONTROLLED INTRODUCTION
Maint. 4–9
Replacing the front panel or fan
Replacing the
front panel
To replace the front panel:
WARNING
Isolate the auxiliary equipment housing from the main
cabinet by switching off the EXT BATT circuit breaker on
the dc circuit breaker panel in the main cabinet before
commencing work.
1. Open the cabinet door. Open the cabinet lid and switch off the circuit
breakers on the power distribution box.
2. Unplug the cable which supplies dc power to the fan from its connector,
fixed to a bracket on the right side of the rear of the front panel.
3. Unscrew and remove, the M6 nut, plain washer and star washer which
secure the front panel earth cable to the cabinet.
4. Undo the six screws which secure the front panel to the cabinet and lift the
panel away.
WARNING
The front panel (excluding fan assembly) weighs 4.5 kg.
Handle with care and observe proper lifting precautions.
5. If the panel is to be replaced but the fan is to be retained, separate the fan
assembly from the front panel by following the instructions in the section
Removing the fan.
The procedure for removing the front panel is now complete.
Replacement is a reversal of the removal procedure. If the fan assembly has
been separated from the old front panel, refer to Installing the fan for
instructions about how to mount the fan assembly in the new front panel.