Slip-ring collector (un)install - inspection

title

Slip-ring Collector Maintenance

( Carousel )

LCA-xxxxxx

Traveler for intervention on

The Filter Exchange System

& Filter Exchange system parts 

 Approval Status DRAFT
Rev. Revision Description LCN# Date
A.1 Initial release, D.Laporte 21-Apr-20
A.2 Google Doc Update, P.antilogus 22-Apr-20
Camera Doc ID Atrium Doc ID Validated By Validation Date
LCA-xxxxx xxxxxxx
Initials:  Date: 
Traveler initiated: 
Traveler Closed Out: 
Part Serial Number : 

Removed: Serial ID

Installed: Serial ID
Index Key Value
Subsystem Carousel
Operation Type On Camera Maintenance
System&Action Safety
Operation Name Slip-ring collector (un)install - inspection
Operation Time \~1-2h
Operation Description The slip-ring collector does the electric connection between the electronic on the rotating pat of the carousel, and its static part: when the carousel rotates it keeps the connection to the static slip-ring “bus” , which includes power and BusCan, using the carbon brushes of the slip-ring collector. There is xxx? such slip-ring collectors distributed on the carousel ring. They are all identical and this redundancy grants a good electronic interconnection between the mobile and fixed part of the carousel. This documentation describes how to replace or access for inspection the slip-ring collector.
Triggered by Maintenance The collector is a wear part. The frequency of replacement has still to be determined. It is expected that it will be at a lower frequency than the scheduled maintenance period of the camera ( \~ 2 years) .
Triggered by Monitoring Analysis An increase of the number of communication errors with the mobile part of the carousel could indicate a degradation of the slip-ring collector carbon brushes. An inspection /replacement of the collector(s) could then be considered.
Triggered by Incident recovery Due to the redundancy/the number of slip-ring collectors, a student interruption of communication with the mobile part of the carousel due to the slip-ring collector is unlikely, still a short due to a broken brush of one slip-ring collectors is a possibility.
Traveler Steps
10 WARNINGS (Personnel Safety Hazards / PPE)
20 CAUTIONS (Equipment Damage Hazards)
20,10 Do no pull on cables to prevent even small tension loads from overloading single wires and breaking them
20,20 Be careful to not drop/spread grease, ex: Brake teethes will have grease
30 Applicable Documents and Drawings Ref./link Type
30,10 Mobile Carousel Assembly LCA-12500 Drawing
30,20 Assembly Gear

LCA-12520

OSNLT229

 Drawing
30,30 Slip-ring_power_collector LCA-12680_OSNLT943 Drawing
30,40 Slip-ring_CANbus_collector LCA-12670_OSNLT927
40 Tools Required Ref. Quantity
40,10 Tournevis plat n° ??? 1
50 Parts, Materials, and Consumables Ref. Quantity
50,10 LCA-12670 5
50,20 LCA-12680 5
60 Useful Comments & Remarks
60,10
60,20
100 Disconnect the connector : unscrew it Initials Date
100,10 Unscrew the connector
100,20 Unscrew the captive screwswith the tournevis plat
100,30 Remove the collector
200 Cleanning Initials Date
200,10
300 Initials Date
300,10
400 Initials Date
400,10
500 Initials Date
500,10
600 Initials Date
600,10
700 Initials Date
700,10
800 Initials Date
900 Initials Date
900,10
1000 Initials Date
1000,10
1100 Initials Date
1100,10
1200 Initials Date
1200,10
1300 Initials Date
1300,10
1400 Screw back the brake : M6X30 (x4) Initials Date
1400,10
1500 Reconnect brake sensor Initials Date
1500,10
1600 Remount backflange parts x2 , with 2 screws each Initials Date
1600,10
9999 End Of Traveler Initials Date
9999,10 Work complete