Clamp uninstall procedure

title Clamp Removal ( Carousel ) LCA-xxxxxx

Traveler for intervention on

The Filter Exchange System

& Filter Exchange system parts 

Approval Status DRAFT
Rev. Revision Description LCN# Date
A Initial release, D.Laporte 11-Feb-20
A.2 Updated to word + new comments, 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 Clamp Serial Nb
Index Key Value
Subsystem Carousel
Operation Type On Camera Maintenance
System&Action Clamping Components
Operation Name Clamp Uninstall Procedure
Operation Time \~1h
Operation Description Each filter are held on the carousel using two clamps (1 X- & 1 X+) , on each side of the filter. When there is no filter engaged in a given carousel slot, the associated clamp(s) can be un-installed if needed.
Triggered by Maintenance The regular maintenance frequency of the clamps is not precisely known, we recommend to have at least one of each clamp kind replaced each \~ two years for full inspection. Tracking the usage duration of each clamp is mandatory.
Triggered by Monitoring Analysis Analyzing the filter exchange operation should allow to identify a decrease in performances of a given clamp. The identification of the issue / the trigger for a maintenance is still under investigation.
Triggered by Incident recovery Clamping-Unclamping failure may trig the dismounting of a clamp, to allow for a clamp inspection or replacement.
Traveler Steps
10 WARNINGS (Personnel Safety Hazards / PPE)
20 CAUTIONS (Equipment Damage Hazards)
20,10 Do no pull on any cables (electrical or mechanical) to prevent even small tension loads from overloading single wires and breaking them or putting them in a wrong position/tension.
30 Applicable Documents and Drawings Ref./link Type
30,10 Mobile Carousel Assembly LCA-12500 Drawing
30,20 Clamp X- Assembly LCA-12550 Drawing
30,30 Clamp X+ Assembly LCA-12570 Drawing
40 Tools Required Ref. Quantity
40,10 Hexagonal key n04 1
40,20 TBD Key to open the window on the camera body ????
50 Parts, Materials, and Consumables Ref. Quantity
60 Useful Comments & Remarks
60,10

On this picture you can see both type of clamp assembly ( X- and X+)

100 Rotate the carousel to the right position Initials Date
100,10

Rotate the carousel at the optimal position to remove the desired clamp.

TBD for each clamp/carousel slot, we should provide an optimal carousel rotaion postion in function of the window we have to use

200 Cleaning tools before usage Initials Date
200,10 Clean hexagonal key
300 Open the two windows in front of the clamp
300,10

IMG_1125.jpg

The best access to remove a clamp is to use the windows on top of camera body when the camera is in maintenance postion in Chile. They are near the auto-changer slot. In respect of this photo to remove a X- clamp the two access windows on the left ( to be confirmed ??? ) should be opened and for a X+ clamp the two access windows on the right ( to be confirmed ??).

400 Disconnect clamp pin-probe cable Initials Date
400,10
To disconnect the cable from the electronic black box attached to the carousel pod, you’ll have to rotate the green plug. For this operation the best option is to use both access windows as shown on the picture : one to look inside the camera , the other to pass the hand , inside the camera body.
500 Unscrew electronic box and remove out the cable of the support Initials Date
500,10
The electronic box can be unlock from the carousel pod , by rotating by hand the metalic buton on it has shown on the picture ( here again one access window is used to seen what you are doing , the other is used to allow you hand to operate inside the camera body)
600 Pull the electronic box out of the camera body Initials Date
600,10
700 Disconnect the unclamping gear Initials Date
700,10

Pull the toward the camera body, the rotation .

700,20

Slightly rotate clock-whise the cable drum, to free it from the gear to allow to pull it away .

800 Free the clamp sensor cable Initials Date
800,10 Free the clamp sensor cable from the clamp wire holding frame
900 Disconnect the clamp sensor cable Initials Date
900,10
1000 Pull the clamp sensor cable out of the camera body Initials Date
1000,10
1100 Pull the cable drum out of the camera body Initials Date
1100,10
1200 Unscrew the clamp body from the carousel pod Initials Date
1200,10

Hold the clamp body as you unscrew the 2 M5x20 ( the screws will not fall as they are hold by the clamp body even once unscrewed )
1300 Clamp removed ready to be stored or to be inspected Initials Date
1300,10

On this picture you can see both type of clamp assembly ( X- and X+)

9999 End Of Traveler Initials Date
9999,10 Work complete