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disassembly [2025/12/09 18:51] – created renodisassembly [2025/12/18 12:21] (current) reno
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-====== Disassembly ====== +====== Disassembly  ======
- +
-===== Removing the Foroptics ===== +
- +
-  - Remove the top 2 4-40 socket head screws and loosen 4-40 socket head screw on the side of the viewing window plate. {{:brewer_main:20251208_101907.jpg?600|}}{{:brewer_main:20251208_101911.jpg?600|}} +
-  - Remove the viewing window plate +
-  - Remove the horseshoe clamp by removing 2 6-32 socket head screws.{{:brewer_main:20251208_102010.jpg?600|}} +
-  - Remove the 3 slide lock DB9 connectors and 2 slide lock DB9 connectors on the side **Note: Pay attention to where these are as it will need to be connected to the right motors when the foreoptics is being re-installed. {{:brewer_main:20251208_102014.jpg?600|}}{{:brewer_main:20251208_102017.jpg?600|}} +
-  - Carefully remove the foreoptics by lifting the foreoptics tube and sliding it to the left out of the mount.{{:brewer_main:20251209_121931.jpg?600|}} {{ :brewer_main:20251209_122038.mp4 |}} +
- +
-When reinstalling the foreoptics, note that there is an alignment pin on the bottom of the foreoptics and the mount.\\ {{:brewer_main:20251209_134556.jpg?600|}}\\ Once the foreoptics is installed, there should be little play (movement) on the foreoptics. Repeat the steps backwards for installation. +
-===== Removing  the PMT Core ===== +
-  - Remove the coax cable (1) +
-  - Remove the db9 connector (2) {{:brewer_main:20251208_102212.jpg?600|}} +
-  - Remove the db9 connectors (1 & 2)  +
-  - Carefully remove the thermister from the PMT (3) +
-  - Remove the 10-32 socket head screws (4,5,6,7) {{:brewer_main:media_6_.jpg?600|}} +
-  - Carefully slide the entire PMT tube out (Note the orientation when you put the PMT back in later) +
-  - With the PMT standing up, remove the top cap (Note: It is a very fine thread, carefully remove the lid as there are electronics right under it.){{:brewer_main:20251209_131536.jpg?600|}} +
-  - Remove the two 4-40 socket head screws {{:brewer_main:20251209_073639.jpg?600|}} +
-  - Move the PCB board (High Speed Amp) out of the way and Loosen (do not remove) the 3 (1,2,3) 4-40 socket head screws (about 3 turns){{:brewer_main:20251209_073559.jpg?600|}} +
-  - unscrew the threaded plate and carefully remove the PMT core {{::20251209_073438.jpg?600|}} +
-  - un-solder the resistor off the post  +
-    - Tip 1: Due to the old solder, it maybe a good idea to add a little bit of new solder then remove it. +
-    - Tip 2: You don't need to completely remove all the solder, once most the solder is gone, use a pair of plyers to move the coiled up resistor off the post +
-    - Tip 3: there may be a bit of silicone on it, make sure you remove the silicone first {{:brewer_main:20251209_072620.jpg?600|}} +
-  - Put on a pair of gloves! +
-  - Remove the PMT's shield to expose the PMT core{{::20251209_072719.jpg?600|}} +
-  - Slowly wiggle out the old PMT core {{:brewer_main:20251209_072743.jpg?600|}} +
- +
-Notes for reinstalling the PMT +
-  - When reinstalling the "new" PMT core note the keyed section of the PMT socket {{:brewer_main:20251209_072803.jpg?600|}} +
-  - Once the PMT core and PMT shield is reinstalled, ensure the resistor is soldered back onto the post. This is very important otherwise it will not measure/count well! Add some silicone to it to protect it from shorting it with anything else +
-  - All the threads on the PMT are fine threads, be very careful and not cross thread anything +
-  - Repeat the steps backwards to reinstall everything. +
-  - In step 10, you do not need to thread it until it is tight, the 3 screws will keep it tight from letting it spin. Spin the thread so that the coax cable and db9 is in the correct orientation  +
  
 +===== Removing The PMT Core =====
 +  - Remove the foreoptics ([[foreoptics#foreoptics_disassembly|Instructions here]])
 +  - Remove remove the PMT and the PMT core ([[pmt#disassembly|Instructions here]])
  
 +===== Removing the Spectrometer =====
 +[[spectrometer#disassembly|Removing the Spectrometer]]
  
disassembly.1765306305.txt.gz · Last modified: 2025/12/09 18:51 by reno