Service Manual

GSM-204-523
Replacing the lid on the auxiliary equipment housing
31st Oct 01
Maint. 4–6
Maintenance Information: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W04-A
Removing the
lid
The lid provides environmental protection for the equipment contained within.
For this reason, the following lid removal and replacement procedures should be
completed in one session and the cabinet then closed.
To remove the lid:
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, release the lid latch and raise the lid until the
mechanical stay locks in position.
2. Switch off the circuit breakers on the front of the power distribution box
and then undo the eight M4 nuts which secure the box to the lid. Place the
power distribution box safely in the top area of the auxiliary equipment
housing.
3. Unscrew and remove, the M6 nut, plain washer and star washer which
secure the lid earth cable to the cabinet.
4. Remove the circlips from the hinge pins.
5. Support the lid and unscrew the mechanical stay from the lid.
WARNING
The cabinet lid on its own weighs 8.5 kg. Handle with care
and observe proper lifting precautions.
6. Remove the two hinge pins by pulling their lugs in the required direction,
using long nose pliers.
7. Remove the lid and place safely to one side.
The procedure for removing the lid is now complete.