We removed the left bushing that is around the air cylinder on the festooning rail, right outside the cyclotron. It was cracked. Will need to replace next year when the vault door opens again.

The copper blockers have been removed from the cyclotron and placed into the coffins.

Copper Blockers have been removed from the cyclotron and one ladder has been installed.

An issue was encountered on 2024-02-23 when attempting to operate the lift trolley.

The following symptoms were observed:
- Upon connecting the trolley's air and power/signals cable, nothing out of the ordinary was observed
- When the Lift Trolley program was selected, however, multiple (seemingly) random outputs on the trolley toggled rapidly without stopping
- On the operator display, a fault message was displayed indicating a power supply issue, and trolley off-rail (the trolley off-rail one being likely unrelated, and as a cascading result of the actual issue)
- It was noted that the output toggling issue persisted even if the trolley itself was disconnected from the "red box" (the controls box with Opto22 output modules)

The following troubleshooting steps were performed:
- Try selecting a different program. Result: the issue persisted regardless of the selected program
- Try with trolley disconnected, but program selected. Result: the issue persisted (indicator lights on modules in red box toggled).
- Try with a different trolley (upper resonator trolley). Result: the issue persisted.
- Try on the mockup, rather than the bridge. Result: the issue persisted.
- Try on the mockup, but with the main festooning cable system for the bridge isolated (disconnected in the control room at the junction box). Result: the issue persisted.
- Try the inverse of the above. Result: the issue persisted.

Various other things were checked:
- Inspected wiring and connectors inside the red box
- Inspected some wiring and connectors inside control room


After fairly extensive troubleshooting, it was concluded that the issue was:
a) in-common with all trolleys (i.e. upstream of trolleys themselves),
b) related to the program, likely during some kind of initialization routine,
c) related to a power supply issue, and
d) not likely to be a result of damaged wiring/connectors.

When the troubleshooting was focused on the control room, it was suspected that the CAMAC crate modules were not properly being powered (no indicator lights on, and also the CAMAC IO message on the operator display was not on... although this was not immediately noticed since, well, it wasn't on). Upon probing the CAMAC power supply unit, 5 of 6 voltages were correctly measured, but the +6V supply was incorrectly reading as approx. 1.9V. Therefore, it is suspected that the CAMAC power supply failure is the root cause of the issue. The theory is: because no inputs are available to the controls software, upon selecting a new program, the software is looking in a loop for inputs that will never be present, and it repeatedly performs some sort of initialization routine in which outputs are turned on (or otherwise just behaves erratically) because it was not designed to handle such a fault. It is unknown at this time why the CAMAC power supply failed, but simply age is a strong suspect.

The power supply model is Kinetic Systems 1500-320.

Controls Group (Erwin Klassen) was contacted and they confirmed the issue, and suggested that they can help replace the power supply with one of the spares they have in stock. This is planned for today (2024-02-26). This e-log will be updated after the replacement to confirm whether the issue was resolved.

Other recommendations:

• Attempt to repair the failed supply (check if simple repair is possible first, then attempt to install a custom 6V regulator in place)
• Request quote for procuring a spare power supply (in progress)
• Accelerate the cyclotron controls overhaul project, O503 (in progress) - potentially fully integrate the new control system during 2024

Edit [2024-02-26 afternoon]: the issue has been resolved by replacing the CAMAC power supply, as expected. Preliminary checks show that everything is working as normal. Controls group has also provided us with a power status monitoring card to easily monitor the 6 different voltages, and be able to probe them. This issue is considered resolved.

The harness, carabineer, and shock packed used during the ISAC hot cell swipe have been checked seperately by Mike and he has found that the carabineer was active (feild of ~3 uSv/h on contact) not contaminated. All other components are clean and non active.

The assumption being that this carabineer most have come from the cyclotron vault.

Tool Trolley:

The connector faceplate was replaced with a new version to allow for more space for service, and consolidate video lines into a single 9-pin CPC connector. A model and drawing were created and are part of the overall tool trolley assembly (to be added to PDM later): TRH1394

Air tubing that previously ran to the connector faceplate on the tool trolley was replaced as it was very old. New tubing is in 3 different colours for easy identification: blue, black, green.

Fittings were replaced with more modern push-connect style (1/4" tube).

The shield door on the B2 level of the RH building has been closed.

Fall equipment from the lockers in the RH shop have been checked for contamination and the lockers themselves have been swiped. All items checked in the target hall cave.

No contamination found.

Upon discussion with Dan it was mentioned the harness that I used was not used in the vault, and its origin is of question at this point.

 Center post bearing on service bridge inspected, turned freely by hand and regreased with Molub-Alloy 777-1 ES

 All 4 Under rail wheels serviced and cleaned. All Timken bearings repacked with grease. No defects in any bearing set. 4 spare Timken 02820 bearings in RH shop.

 Motor/Gearbox unit removed from carrier and fully inspected and serviced. Oil changed on May 29th using Mobil 600 W Super Cylinder Oil. No signs of wear in internal gears, recommend oil service roughly every 5 years after shutdown.

Serviced the Camera trolley this morning as per Mike Gallops service outline.

Performed continuity test at Cyclotron center post with RH and Operations group members using the service bridge, 
tool trolley, and probe attachment on 2017-03-03.

Lower tank:
Quad #1: All six plates PASSED.
Quad #2: All eight plates PASSED.
Quad #3: All six plates PASSED.
Quad #4: All eight plates PASSED.

Upper tank:
Quad #1: Had some repeat-ability challenges with all six screw-heads/wires. Retest required.
Quad #2: All eight plates PASSED.
Quad #3: All six screw-heads PASSED.
Quad #4: All eight plates FAILED. Retest required.

Performed extra continuity test at Cyclotron center post with RH and Operations on 2017-03-06: achieved a 
successful test on all upper quad #1 and #4 screws/plates. One unconfirmed explanation for the successful retest 
is that the multimeter cable was firmly grounded against the computer monitor rack in the RH service bridge 
control room (see attached picture), which may not have been the case during the initial test.

Noticed oil leaking out of reduction box, scan and swipe, disconnect e motor and all related cables from bridge, remove motor and reduction box assembly with over head crane, disassemble reduction box, grease broken down and separated likely cause of leak. Inspect bearings and internals for wear -all good

re assemble with new grease and gaskets (we added two grease nipples to the bearing housing to aid lubrication), test e motor on its own- good. Mount motor and box as unit adjust chain for tension and final test - good

 All the bearings on both the upper and lower wheel were replace to see if it will improve the accuracy of the orbital position reading. See drawing SK-2489 for list of bearings used.

The encoder was also replaced to match the style used elsewhere.

The following items from Phase 1 of 2 of Bridge Lift Mechanism Refurbishment (O504) are complete:

• Replacement of pneumatic tubing
• Replacement of hydraulic cylinders for lifting, and procurement of spare

The newly refurbished system has been tested by Dan McDonald (June 16, 2021) and verified as functioning.

Phase 2 of the refurbishment will include replacement of the hydraulic pump and creation of pneumatic/hydraulic drawings. This is expected to be complete by end of 2022.

[Edit 2024-10-16]: Phase 2 has been completed. See e-log 191

 The Blue Shield Door on the B2 level of the RH building has been closed.

The seven copper blockers were removed from the Cyclotron tank by the RH group using the service bridge, lift 
trolley, and attached checklist on 2017-01-30.

The monitor box (NE/SW-5/8/10) and series 200, 400, 500, 600, and 700 shields were installed in the Cyclotron 
tank by the RH group using the service bridge, lift trolley, and attached checklist on 2017-01-31 and 2017-02-
01.

The seven port hole covers were installed in the Cyclotron tank by the RH group using the service bridge, tool 
trolley, and vacuum unit on 2017-01-02.

The two ladders were installed in the Cyclotron tank by the RH group using the service bridge, lift trolley, 
and ladder attachment on 2017-01-02.

=================================================================================================================

The monitor box (NE/SW-5/8/10) and series 200, 400, 500, 600, and 700 shields were removed from the Cyclotron 
tank by the RH group using the service bridge, lift trolley, and attached checklist on 2017-03-07 and 2017-03-
08.

The seven port hole covers were removed and the Cyclotron tank seal was cleaned by the RH group using the 
service bridge, tool trolley, and vacuum unit on 2017-03-09.

The two ladders were removed from the Cyclotron tank by the RH group using the service bridge, lift trolley, 
and ladder attachment on 2017-03-09.

The seven copper blockers were installed in the Cyclotron tank by the RH group using the service bridge, lift 
trolley, and attached checklist on 2017-03-09.

This morning Don Jackson commented to Grant Minor that he believed the tank lid was still not raised high enough to safely operate the Remote Handling bridge and trolleys, despite it having been raised 0.5" yesterday to the point of engaging the limit switches (see e-log from yesterday).  Don said he believed this to be the case as a result of a visual inspection with binoculars from the outside of the tank, as well as from the views achievable with the remote cameras.

Don also believed he had caused further damage to the equipment inside the tank by orbiting with the bridge.

After a teleconference with Klaus Reiniger after lunch (Yuri Bylinski, Dan Louie, Don Jackson, Grant Minor present), the following was confirmed:

• There is a complete set of limit switches at station 1, and duplicate set at station 10 for redundancy.
• Both stations 1 and 10 have an operator upper limit switch, as well as an over-travel limit set slightly higher than the upper limit.
• The lid has traditionally been raised to the point of the upper limit switch tripping, then the lift procedure stops there.
• The wooden stick was traditionally set to just touch the roof beams with the lid at the upper limit.  This means if the stick is contacting the roof beams within 1/32nd inch or so and the upper limit trips, the lid has been raised fully.
• Klaus could only remember one incident of the lid being raised so high before tripping the upper limit that the wooden stick actually bowed under pressure from the roof beams.  In other words, this was not a normal occurrence.
• Klaus also reminded us that the limit switches have some mechanical hysteresis and need to be actuated through their full range of motion to reset them.

Don Jackson indicated that another 1/4" of clearance would be adequate to safely operate the RH equipment in his opinion.

At around 5pm Grant Minor and Ron Kuramoto reset the upper limit switches at both stations 1 and 10 by adjusting the block that both upper limit and over-travel are mounted to, see attached photos.

• A line was scribed in the primer paint to mark the original position of the limit switch mounting block.
• The bolt was loosened, and the block was raised fully to reset the switches, and then set 1/4" higher than the scribed line, measured with a Starrett scale accurate within about 1/64"
• The bolt was re-tightened.

Dan Louie and a shift operator reset the wooden stick 1/4" lower than the roof beams, this was double checked by Grant.

Dan Louie started up the system and confirmed the limit switches were properly reset.  He then raised the lid until the limit switches tripped again, confirmed by checking the illumination of the upper limit lamp (see attached photo).

After the raising of the lid, the wooden stick was confirmed to be contacting the roof beams by Grant Minor.

Dan Louie also confirmed that the master synchro counter had advanced almost exactly 250 counts (proportional to about 250 thousands of an inch).

Mechanical counter readings at each station (where accessible) were taken before and after this 1/4" rise by Dan Wright and Grant Minor:

Grant Minor had dosimeter 208 today, which was signed out at 0.61 mSv and signed in at 0.69 mSv.  Thus elevating system assessments and adjustments resulted in approximately 0.08 mSv dose.

Upper and lower resonator trolleys received mounting plates and brackets to accommodate DC motor controls for updated drive motors.