Using SHC electrical test cables routed to to TH,  We tested TM4 steerer  4 polarities. At 100v megga test, left, right , up and down to ground are all OL. TM4 steerer has no short.

New steerer cables are installed in TM4. Cables are properly routed in containment box and service cap top. After job, TP2 is installed back onto module top.

Remotely removed Tm2 from silo to SHC. The moving is smooth.

Both electrical check and leak check (HS and Window lines)results are good.   See attachments

Correction: It should be UCx#32 P2N instead of UCx33# in check list attached . UCx#33 is on TM2 in ITW

Chad installed containment box back to TM2 yesterday. We leak checked VCR joints on window line.    No leak.

At SHC: HS line no leak . electrical check result is fine. At TCS: helium pressurized HS line to 70psi, 3 minutes. LD  leak rate 0.0xE-9atm.cc/sec , no response.

The West Entrance Module has been moved to the South Hot Cell for repair.

TM#4 with SiC#40 has been moved from the east target station to the south hot cell.

TM#2 was moved from ITW to SHC, then moved back to ITW.

 An electrical check of TM2 with target UC#36 and no external connections was finished at SHC. 

It was noted on Nov. 9 that a squeaking noise was present when the turntable was rotated CCW with a module present.

Upon inspection, it appears the issue could be due to drive chain misalignment and improper tension. Furthermore, it was noted that a shaft collar on one of the existing chain tensioners was broken (a replacement was ordered).

Repairs will be performed on Nov. 19 to resolve these issues by re-aligning the chain, and resetting the tensioners. The turntable will be tested. This e-log will be updated once the work is complete and the system is returned to a functioning state. See Work Permit I2021-11-09--3

Edit, Nov. 19: the aforementioned repairs were completed and the turntable has been tested and is operating correctly. No squeaking noise is present. It is suggested to increase the diameter of the two chain tensioner shafts (and thus modify related bearing and shaft collar components) in order to prevent bending of the shaft which was observed. This will be done in the near future.

A rotary limit switch was installed, attached to the shaft adjacent to the drive motor for the vertical drive system. This limit switch is not yet wired to the control system and operational - this will be done at a future date and the e-log will be updated.

Relevant electrical drawings: IRH2083 to IRH2085

Edit (2022-03-02): see e-log https://elog.triumf.ca/TIS/RH-ISAC/2309

TM4 was moved from ITE to SHC. Shield plug installed in ITE.

the TM4 with new target Ta #63 installed in SHC and an electric check was made by David. 

 An electric check was done right after module moving from SMP to SHC. 

Two changes have been made to the control system to the South Hot Cell:

1. Addition of two emergency stop buttons: one located in the Target Hall on the wall adjacent to the hot cell, and one located on the control panel adjacent the operator station.
2. Addition of limit switches to the turntable's vertical drive system to prevent over-travel at both the upper and lower limits.

The emergency stops will both stop all turntable motion: vertical and rotational.

An update to operating procedures: in order for the vertical motion system to function, the limit switch cable must be plugged in. When plugging in the vertical drive motor to the wall outlet as per normal operating procedure, it is now required to also connect the limit switch (which is mounted near the motor on the driveshaft) to the cable coming from the appropriately labelled junction box on the South wall (M12 connector).

These changes are based on electrical drawings IRH2083 - IRH2085 and mechanical assembly drawing ITA6739. The changes have been commissioned according to commissioning plan Document-218490. The commissioning report will be uploaded to DocuShare. The work permit for this upgrade was I2022-02-15--3.

 Last week we repaired the South Hot Cell turntable chain/sprocket. Chain was loose and there was a few section where the chain was not lining up properly with the sprockets.

3 issues were discovered:

-        One of the pins was bent. It’s been replaced but is a temporary fix. Need to replace them with stronger pins.

-        The smaller sprockets near the motor were too far from the main turntable sprocket which was causing the links to not immediately line up with the teeth on the turntable sprocket. With too much slack in the chain, it’s likely that this is were the misalignment was starting. This was fixed by adjusting the motor position and the position of the yellow plate bolted to the floor.

-        The yellow plate that is bolted into the floor has oversized holes relative to the bolts/washers used. This allows us to adjust the position, but the washers are to thin and are being bent/pulled into the holes. Should be replaced with thicker washers that can withstand the tension and this will help prevent the plate from sliding out of position.

Chad changed the EZL cable and plugs on TM2. New cable runs along the cable trays.

 A Test Febiad Target was installed and checked at SHC. 

 The TM4 with installed target #UCx37 had been electric checked at SHC. PICs attached.