Ring gear lubrication

title Ring Gear Lubrication ( 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 09-Apr-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:  Do not apply to this case
Index Key Value
Subsystem Carousel
Operation Type On Camera Maintenance
System&Action Driving Lubrication
Operation Name Ring Gear Lubrication
Operation Time \~1-2h
Operation Description Lubrication of the main carousel gear. The lubricant is applied through a dedicated tool replacing temporarily one of the carousel break.
Triggered by Maintenance Regular lubrication of the main carousel gear is expected. The frequency of lubrication 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 Analyzing the power consumption during filter exchange and the fft of full carousel rotations, should allow to identify an increase in friction, the identification of the issue / which rotating part is involved in the performance degradation, is still under investigation.
Triggered by Incident recovery Unlikely
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 Brake Assembly

LCA-12360

OSNLT712

Drawing
30,40 Crown grease injector

LCA-128xx

OSNLT794

30,50 Brake Assembly Uninstall Procedure LCA-XXXXX Document
40 Tools Required Ref. Quantity
40,10 Hexagonal key n04 1
40,20 Hexagonal key n06 1
Remarque : dans la photo il y a une 3 ieme clef ?
50 Parts, Materials, and Consumables Ref. Quantity
50,10

Carousel breaks & motor handles

LCA-xxxx 2
50,20 Ring gear grease (Kluber ? ) xxxxx X ml
60 Useful Comments & Remarks
60,10 When unpowered the brakes are locked, preventing carousel rotation. Removing a single break from the carousel, leaving the two other in place , will still grant that the carousel , even unbalanced, will not move.
60,20 TBD A procedure to remove old grease has still to be defined.
100 Screw handles on brake support Initials Date
100,10

There is 3 breaks on the carousel ( Bay X,Y,Z) . For the lubrication of the ring gear we recommend to remove the break from Bay X

TBD : We should identify which bay is the best for this operation

100,20 The bay protection panel should be removed
100,10
The 2 breaks & motor handles should be put in place on the brake frame, to have an easy way to handle a brake once it will be unscrewed from the back flange.
200 disconnect brake sensor Initials Date
200,10
To disconnect the brake sensor will request to access/open the neighbor bay
300 remove backflange parts x2 , with 2 screws each Initials Date
300,10
400 Unscrew M6X30 (x4) Initials Date
400,10
500 lift the brake with the handles Initials Date
500,10

As you lift out the break with the handles, be carefull to not spread grease all over the place (grease is on the gear side) , and avoid the backflange wires on the way out .

600 The socket is empty, check the access to the ring gear Initials Date
600,10
700 Present the grease injector Initials Date
700,10
800 Screw the grease injector Initials Date

screw M6X30 (x4) , the screws are from

the step 400,10

900 Grease pump connection Initials Date
900,10 TBD picture
1000 Gear rotation Initials Date
1000,10 TBD Mode ? Speed ? Programme fcs ? Time?
1100 Remove grease injector Initials Date
1100,10 TBD
1200 Cleaning Initials Date
1200,10 TBD
1300 lift the brake with the handles Initials Date
1300,10

As you lift in the break with the handles, be carefull to not spread grease all over the place (grease is on the gear side) , and avoid the backflange wires on the way in .

TBD : to realy fit in the break should be free , but it is locked as unpowered , what do we do ?

1400 Screw back the brake : M6X30 (x4) Initials Date
1400,10
1500 Reconnect brake sensor Initials Date
1500,10
Remark: on the pictures the 2 back flange parts are already put back in place , but we recommend to mount them after this step . ( NEW PICTURES ? )
1600 Remount backflange parts x2 , with 2 screws each Initials Date
1600,10
9999 End Of Traveler Initials Date
9999,10 Work complete