Installation manual
 4
Disassemble the Standard Radiation Shield
Note: We recommend using a workbench or table to perform the following procedures.
1.
Turn the ISS upside down with the rain collector cone 
on the bottom. 
2. Disconnect the RAIN cable and, if present, disconnect 
the SUN and UV cables from the SIM.
3. Wireless ISS Only: Disconnect the solar power 
cable.
4. Turn the ISS right-side up with the cone on top.
5. Remove the rain collector cone from the ISS base by 
rotating the cone counter-clockwise. When the cone’s 
latches line up with openings in the base, you can lift 
the cone off. The cone fits in the base tightly and may 
require extra pressure to remove the first few times. 
See Figure 4. 
Tip:  Steady the ISS base between your knees when removing the cone.
6.
Remove the three 8-32 x 4” 
screws holding the radiation 
shield plates together. Save 
these three screws for use in the 
next procedure, “Assembling 
the Lower Shield.” 
Twist to Open
Figure 4. Remove Rain 
Collector Cone
#8-32 x 4" Screw
Top Plate with
Insulating Disk
ISS Base
Temp/Hum
Sensor
#8 Lock Washer
#8 Flat Washer
Bottom Plate with
SIM Housing
Radiation Shield 
Open Plates
Temp/Hum
Cable
Figure 5. Standard Radiation 
Shield Assembly Diagram










