ID |
Date |
Author |
Category |
Type |
Subject |
109
|
Monday, February 19, 2018, 12:58 |
maicodallavalle | Trolley | Repair | Lift Trolley Repair |
We had just finished pulling out the ladders from the cyclotron with the lift trolley. We started to run the lift trolley into the cyclotron when it stopped moving. The radial drive gearbox was the problem. We pulled the gearbox off. Replaced the key and the lift trolley is all repaired. |
113
|
Wednesday, September 04, 2019, 15:29 |
Adam Newsome | Trolley | Maintenance | Connector faceplate and tubing upgrade |
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). |
119
|
Wednesday, February 05, 2020, 15:04 |
Adam Newsome | Trolley | Repair | Upper resonator trolley: cylinders for Ex 2C tasks |
Cylinder 4 on the upper resonator trolley was not fully functional when removing Ex 2C during 2020 shutdown. It worked occasionally. Upon inspection it was determined that it was binding when extend was attempted. This cylinder was replaced Feb 5, 2020 (model: American Cylinder 562SVS-2.00).
The other three cylinders were inspected and all of their shafts appear significantly bent. Replacement cylinders will be ordered and these will be replaced to prevent further issues.
Edit: all cylinders have been replaced as of Oct 8, 2020
Note: the solenoid valves that control these cylinders are quite dated and are leaky. The layout, plumbing, and wiring could also be improved. One of the cylinders' default position is extended which suggests a wiring/plumbing issue. I will look into replacing these as well, and creating pneumatic circuit documentation.
This e-log will be updated when replacement is completed. |
121
|
Saturday, April 04, 2020, 10:03 |
Dan McDonald | Trolley | Development | Addition of DC motor controller mounts |
Upper and lower resonator trolleys received mounting plates and brackets to accommodate DC motor controls for updated drive motors. |
139
|
Monday, March 21, 2022, 13:14 |
Adam Newsome | Trolley | Repair | Video Trolley Mk 1 - Radial Limit Switch Replacement |
An issue was observed in which radial motion on the Video Trolley Mk 1 did not respond to commands. After troubleshooting, it was determined that this was due to the "OP LIMIT" interlock - the "OP LIMIT" pushbutton on the console was illuminated in red, and needed to be continuously held down in order to operate the radial in/out motion buttons.
It was determined that the root cause of the issue was a failed radial limit switch which was likely damaged during trolley transport. The limit switch was replaced, and functionality was restored. |
141
|
Wednesday, May 04, 2022, 12:07 |
Adam Newsome | Trolley | Development | Tool Trolley: Brass air fittings replacement complete |
All of the old brass air fittings on the Tool Trolley have now been swapped over to push-connect style fittings. As these are plastic fittings, it is recommended to inspect them after ~5 years for degradation. |
155
|
Thursday, August 03, 2023, 10:43 |
Adam Newsome | Trolley | Development | Previous generation video trolley decommissioned |
The "old" video trolley featuring scissor mechanism and DSLR camera has officially been decommissioned. Going forward, Video Trolley Mk 2 (TRH1089D) will be used. |
157
|
Thursday, September 14, 2023, 13:51 |
Adam Newsome | Trolley | Maintenance | Lift Trolley: upgrades to camera tilt mechanism |
The two camera tilt mechanisms on the lift trolley have been upgraded. Upgrades include:
For the individual camera:
- Replaced cylinder
- Replaced fittings for cylinder
- Replaced air tubing from flow control to cylinder
- Visual inspection and fasteners tightened
For the overall platform containing the camera and lighting:
- Replaced cylinder
- Replaced fittings for cylinder
- Replaced valve (5/3 centre closed style)
- Replaced air regulator and set pressure (note: at the time of writing this e-log, it still needs to be fastened in place via its mounting bracket)
- Replaced air tubing
- Visual inspection and fasteners tightened
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Attachment 1: PXL_20230914_193143524.jpg
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158
|
Friday, September 15, 2023, 10:15 |
Adam Newsome | Trolley | Maintenance | Lift Trolley: mirror actuation mechanism repair/upgrade |
The mirror actuation mechanism was observed to be "sticky" during 2023 winter shutdown - it occasionally did not function properly and needed some manual assistance.
The following items were addressed to resolve the issue:
- Replacement of the Tyne Myte double acting valve which controls the cylinder (based on troubleshooting tests, it seemed this valve was not functional or intermittently functional)
- Addition of a silencer and in-line flow control on the exhaust of the aforementioned valve - adjusted to allow for smooth operation of the mirror when toggled
- Cleaning of the cylinder's shaft (it had a sticky residue build-up and was notably high friction) - this cylinder should likely be replaced in the near future
- Replacement of air tubing along the supply line to the valve, and between the valve and cylinder
- Replacement of all fittings (push-connect style) on the valve and cylinders
The mirror actuation was tested after these changes and is behaving normally.
No further repairs required, although it is suggested to change the remainder of the tubing and fittings for the other valves which control different functions on this trolley, and to eventually upgrade the valves themselves to a low profile valve bank.
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Attachment 1: PXL_20230915_164811247.jpg
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168
|
Friday, February 16, 2024, 11:11 |
Adam Newsome | Trolley | Repair | Lift Trolley: vertical motion failure, motor relays replaced |
Today (2024-02-16) when operating the lift trolley to install shields in the cyclotron, the vertical motion was observed to be intermittently working. When the trolley was out of the cyclotron tank and on the carrier, troubleshooting showed that it was likely an issue with the motor relays. The relay box was removed and the relays showed signs of wear due to ageing. The relays were replaced with new ones, and the box was reinstalled. The vertical motion appeared to work correctly after the replacement. The issue is considered resolved.
It is suggested that all motor relays be inspected or replaced as soon as possible, as others are of a similar age and could fail in the near future.
Edit (2024-02-26): last week, further issues were encountered. It was suspected that the upper limit switch was faulty. The limit switch was replaced and the issues did not persist. Note: it is possible that all observed issues could be related to the CAMAC power supply problem discussed in e-log 169 |
25
|
Thursday, January 16, 2014, 08:46 |
maicodallavalle | Trolleys serviced | Maintenance | Pre Cyclotron work servicing and checking |
This is a list of all the trolleys and other equipment witch were checked and serviced prior to work in the Cyclotron.
- Video Trolley cleaned and checked (no adjustments needed)
-Lift Trolley cleaned and checked (no adjustments needed)
- Left Outrigger cleaned and checked
All of the bearings in the festooning wheels were changed.
Drive chain needed adjustment. (modification to wheel mounting bracket so that chain could be adjusted)
-Right Outrigger cleaned and checked
All of the bearings in the festooning wheels were changed.
Drive chain needed adjustment. (modification to wheel mounting bracket so that the chain could be adjusted)
-Tool Trolley cleaned and checked
One of the support wheels was checked and found to be out of alignment. (an adjustment was made to correct the problem)
-Upper Resonator Trolley cleaned and checked (no adjustments needed)
-Service Bridge cleaned and checked
Center post mount was rotated by hand. (no adjustment needed)
-Service Bridge Carrier cleaned and checked
The two hydraulic cylinders witch lift the Service Bridge into the Cyclotron leaked last year.They were rebuilt last year and are not leaking.
The two drive chains witch run the Carrier North and South were found to be too tight. (an adjustment was made to correct the problem)
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26
|
Friday, January 17, 2014, 07:53 |
Travis Cave | Trolleys serviced | Standard Operation | Trolley checks |
All trolleys work electrically and control wise. One encoder was found non functioning on the upper resonator trolley for the vertical drive it was replaced, we've no move replacements of those current type of encoders so a wholesale replacement of all the trolley's encoders will have to be done post shutdown. Also the wiring for the outrigger is in need of replacement but will work for this shutdown it will also have to be replaced post shutdown as well. The upper resonator trolley has also been setup to remove X2C. |
56
|
Tuesday, February 17, 2015, 07:10 |
Dan McDonald | Trolleys serviced | Maintenance | Pre shut down trolley service |
Routine maintenance as per Mike Gallop's written procedure took place in December with the only non routine service being the changing of shaft seals on Vacuum trolley drive reduction box.
Trolleys maintained - Lift trolley
- Vacuum trolley / Tool trolley
- Camera trolley
- Upper resonator trolley
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129
|
Friday, February 26, 2021, 08:29 |
Adam Newsome | Trolleys serviced | Maintenance | First Turn Radial Flag (FTRF) Jig - Pneumatic Upgrade |
Old fittings and broken pneumatic tubing on the FTRF jig have been replaced with new push-connect fittings and polyurethane tubing. The jig was previously not in a functioning state due to damaged tubing. A pneumatic diagram was created in the process of the upgrade. The tubing will be cleaned up within the next few days and the jig tested. |
Attachment 1: PXL_20210216_202019350.jpg
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130
|
Friday, February 26, 2021, 13:00 |
Adam Newsome | Trolleys serviced | Maintenance | Lower Resonator Trolley - Radial Drive Failure Issue |
On Feb. 24 while practising a training exercise, the lower resonator trolley unexpectedly experienced a radial drive failure. The trolley did not move in either radial direction (this occurred after approx. 5 minutes in the tank, near the centre post, with FTRF jig installed). The trolley was retrieved from the tank manually for investigation. Upon retrieval and testing on the mockup, the radial drive began to work again.
Investigation consisted of:
- Verifying controls signals reaching motor controller
- Verifying power to motor
- Verifying all connectors and cables intact
- Verifying drive components installed and free of damage (shafts, keys, set screws, etc.)
- Disassembly and inspection of gearbox
- Running the motor for approximately 3 hours with no load to verify no issues
The cause of the issue cannot be found, however it is suspected a thermal shutdown of the motor or motor controller may have occurred, and after a short delay, the circuit was reset back to a functioning state on its own.
In the future prior to using this trolley it is recommended to test run it, with load, in the mockup to verify radial drive functionality. |
135
|
Tuesday, August 31, 2021, 14:28 |
Adam Newsome | Trolleys serviced | Development | Upper Resonator Trolley - Finger Cylinders Replaced |
The two support fingers on the upper resonator trolley were bent due to excessive loading during cylinder toggling.
Fingers were bent back into position such that they are vertical when the cylinder is retracted.
The cylinders used to actuate these fingers were replaced (one was leaking) - replacement allowed for the opportunity for upgrade. The following changes were made:
- Changing reverse spring-return cylinders to double-acting cylinders (formerly American Cylinder 750RVS-2.00, replaced with SMC NCDMB075-0200C)
- Addition of in-line flow controls for both extension and retraction motions
- Tuning of flow control to achieve smooth operation and prevent further damage to the fingers during actuation
The new finger configuration has been tested and is working. |
Attachment 1: new_fingers.PNG
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