CPI S-Band DFTS D50 Maintenance Procedure Download

Page: 3 / 8

CPI Confidential V 11

June 12, 2009

Remove right and left side controller brackets unfastening 2 Phillips screws per bracket
as shown in the picture above.

Remove the tuner cover shown in above picture, unfastening 4 screws using a stubby
Phillips screwdriver, taking care in the strong magnetic field. Preferably use non-
magnetic tools.

Right side controller bracket
showing two screws

Left side controller
bracket
(showing screw)

Tuner cover right side screws
(two screws also on left side)

Tuner cover

Summary of Contents for S-Band DFTS D50

Page 1: ...e customers own discretion Should the customer decide to perform this operation CPI cannot be responsible for any damage to the klystron by the incorrect application of this procedure or by improper handling of the klystron The procedure will take a few hours It should be implemented by qualified technicians with knowledge about CPI klystron products The successful maintenance of the tuner may be ...

Page 2: ...ture loosening the four thumbscrews locating on the side mounting plates and then disconnecting and removing the channel changer controller caution care must be taken as you remove the channel change controller because a D50 connector exists between it and the motor module from the motor module Channel changer controller assembly D15 connector Thumbscrews two on each side of controller bracket mou...

Page 3: ...re above Remove the tuner cover shown in above picture unfastening 4 screws using a stubby Phillips screwdriver taking care in the strong magnetic field Preferably use non magnetic tools Right side controller bracket showing two screws Left side controller bracket showing screw Tuner cover right side screws two screws also on left side Tuner cover ...

Page 4: ...C interface cable supplied with each klystron CPI P N 764058 Plug the DB15 f connector marked CONTROLLER into the DB15 m port on the channel changer controller assembly Connect DB15 m connector marked A2J7 to the cable coming from the KPA marked the same This will provide required power to the channel changer controller assembly Connect the DB9 f connector marked LAPTOP to your laptop s serial por...

Page 5: ...nd it to the HOME position If the motors are struggling to execute this command give them a helping hand A gentle turn of the struggling pulley in the same direction the motor is trying to turn should suffice Be extremely careful doing this Caution Do NOT place fingers inside the belt loop as they could be pinched by the pulley Now turn the KPA power OFF This removes the holding current from the m...

Page 6: ...ower Once the tuner initialization is complete use FELIX software to select the highest frequency channel as shown in picture below This will allow access to the driving screw threads to be inspected Home position marker at least half way into the optical sensor Optical sensor Tuner the highest channel Exposed driving screw thread Optical sensor Home position marker ...

Page 7: ...ical sensor Please do NOT use cotton Q tips to clean threads This could leave cotton fibers on the threads After cleaning allow sufficient time for solvent to dry Inspect the threads for the dirt residue The entire exposed thread should now be coated in PTFE based grease e g Super Lube Synthetic Grease with Syncolon PTFE For more information go to www super lube com Make sure that excess grease do...

Page 8: ...s stuck at any point or errors are reported on FELIX repeat the cleaning and lubrication procedure and retest Note As a guideline travel from Channel 1 to 50 should take about 12 seconds with well functioning channel changers Channel change faults will not be shown on the KPA until this time exceeds 30 seconds The HOME process will take longer than 30 seconds but only happens when KPA is powered o...

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