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Field Service Procedure – Replacement Pol Motor Kit, USAT 

 

Page 6 of 7 

Document No 

136481 Rev A

 

Copyright © Sea Tel, Inc 2012 - The information contained in this document is proprietary to Sea 
Tel, Inc.  This document may not be reproduced or distributed in any form without prior written 

consent of Sea Tel, Inc.  

 

 

 
6. Using a pair of 3/16” wrenches remove the standoffs 
securing the bracket to the defective pol motors D-sub 
connector.    

 

7. Install the pulley on the replacement motor in the same 
position as on the defective pot assembly. Apply Loctite 
638 to the motor shaft and secure the set screw with 
Loctite 222 using a 1/16” Allen wrench.  

 

 

*Note:

 For further information refer to the Loctite 

Procedure 121730 provided with this kit. 

 
8. Install the bracket to the replacement motor assembly 
using the hardware removed in step 6. 

 

*Note:

 The orientation of the connector in relation to the 

bracket.  

 

9. Locate the pulley into the belt and install the motor 
assembly to the feed using the hardware removed in step 
4.n Align the motor with harness exiting downwards, apply 
Loctite 242 to the threads, do not fully tighten at this time.  

 
10. Apply downward pressure to the motor to tension the 
belt and tighten 2 of the retaining screws.  

Summary of Contents for Sea Tel

Page 1: ......

Page 2: ...nstalled on the feed assembly of the USAT to monitor the stabilization of the feed assembly offering the performance of a 3 axis pedestal 4 Verify the Range of Motion Note Do not try to drive the pola...

Page 3: ...to move and the pol count doesn t change then the pot has failed and is outputting a default value No drive will be issued to the pol motor as the value is out of the range which the system operates...

Page 4: ...physical problem such as the belt slipping on the motor pulley 6 3 Troubleshooting Pedestal Errors Servo Limit and Stability Limit 1 Reinitialize the pedestal does it drive correctly or at all If none...

Page 5: ...turn will rotate the motor pulley and shaft and it should be apparent if there is a dead spot as the rotation will feel taught at that position Caution Be extremely careful rotating the pedestal arou...

Page 6: ...or replacing the pol motor on the USAT series antennas Sea Tel kit part number 125266 1 motor part number 124700 Caution Power down the pedestal before following this procedure 1 Using a 1 Phillips sc...

Page 7: ...ctive pot assembly Apply Loctite 638 to the motor shaft and secure the set screw with Loctite 222 using a 1 16 Allen wrench Note For further information refer to the Loctite Procedure 121730 provided...

Page 8: ...gh that the axis will drive correctly without skipping on the teeth of the pulley If the belt is too tight loose repeat the previous step until the belt tension is correct and tighten all three of the...

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