Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  RH-Beamlines  Not logged in ELOG logo
Message ID: 43     Entry time: Friday, February 22, 2013, 17:27
Author: Keith C Ng 
Category: M9 
Type: Repair 
Subject: M9 Q1 Q2 removal, Q2 joint dissassembly 

M9 Q2 15" pin drive was removed and disconnected.

- Pin drive retention screw had to be completely removed to be able to remove pin drive completely.

- Had to make tools to remove pin drive and retention screw, see photos.

- Retention screw removed with 3/4" hex socket with .010" shim inside to cause interference with 3/4 hex bar. Hex socket was then jammed on to screw to retain it. Part was then unscrewed and carried away with socket. 80 µSv on contact, 10 µSv @ 1/2 m, no removable contamination.

20130222_m9q1q2remove_P1020831.JPG20130222_m9q1q2remove_P1020832.JPG

- Pin drive removed with double hook tool, left on stand next to steel blocks at magnet elevation.

- 93 turns to fully retract pin drive, 4 turns to completely remove retention screw.

- Q2 joint was pried open with a screwdriver wedged between B1 flange and indium ring. See photo for final result.

20130222_m9q1q2remove_P1020840.JPG

ELOG V2.9.2-2455