Service Manual

GSM-204-523
Replacing an environmental seal on the housing
31st Oct 01
Maint. 4–12
Maintenance Information: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W04-A
Replacing an environmental seal on the housing
Introduction to
replacing a seal
A faulty environmental seal can allow moisture to enter the housing, which in
turn can lead to equipment failure. It is important that the seals are inspected for
signs of wear or damage whenever the housing door or lid are opened.
Replacing the
lid
environmental
seal
The environmental seal for the lid consists of a U-shaped rubberized seal that
fits over the metal lip on the top of the housing (see Figure 4-1).
To replace the the lid seal:
1. Open the housing door, release the lid catch and then lift the lid so that it
locks in position.
2. Pull the old seal off the metal lip.
3. Measure the length of the new seal against the old seal and trim to the
correct length, if necessary.
4. Press the new seal firmly onto the metal lip all the way around and ensure
that the free ends meet centrally on the front edge.
5. Close the lid and the housing door.
The procedure for replacing the environmental seal for the lid is now complete.
Replacing the
door
environmental
seal
The environmental seal for the door consists of four strips of self-adhesive
gasket, fixed to the inside door panel.
To replace the door seal:
1. Open the housing door.
2. Trace a line around the inside edge of each seal strip as a marker for
positioning the new seal strips.
3. Remove the old seal strips. Remove all traces of adhesive using a suitable
solvent.
4. Fit the new seal strips, ensuring that the inside edges align with the marks
made prior to removing the old seals.
5. Close the door.
The procedure for replacing the environmental seal for the door is now
complete.