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Maintaining the Radiation Shield
The outer plating of the radiation shield should be cleaned when there is excessive
dirt and build-up on the plating. Wipe the outer edge of each ring with a damp cloth.
Note:
Spraying down or using water excessively to clean the radiation shield can damage the
sensitive sensors or alter the data and readings the ISS is transmitting.
Check the radiation shield for debris or insect nests several times a year and clean
when necessary. A buildup of material inside the shield reduces its effectiveness and
may cause inaccurate temperature and humidity readings.
At least once a year, thoroughly clean your radiation shield. Follow the instructions
below for the correct version of your ISS's radiation shield.
Tip:
This also a good time to inspect and clean any debris or dust from the temp-hum
sensor assembly which is located inside the radiation shield.
Maintaining a Standard (Passive) Radiation Shield
1. Remove the rain collector cone.
2. Open the transmitter shelter and
unplug the temp-humidity cable
from the sensor interface.
3. Using a Phillips head screwdriver,
loosen the three 4'' (~100mm)
screws holding the radiation shield
plates together.
4. Taking care to maintain the order in
which the five plates are assembled,
separate the plates as shown and
remove all debris from inside the
shield.
5. Reassemble the plates in the same
order in which they were
disassembled, and fasten them
together using a Phillips head
screwdriver to tighten the 4" screws.
Note:
For some models of the ISS, the order in which the five radiation shield plates are
assembled may be slightly different than the order shown in the figure. For this reason,
ensure that you always reassemble the plates in the same order in which they were
disassembled.
4" Screw
(3)
Lock
Washer
Flat
Washer
Plates
Rain Collector Base
Temp/Humidity
Sensor Plate
35
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