TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual
99
Section 8: Antenna Repair
Procedures
8.1 Tools for the Repair of Antenna Components.............................................................................. 100
8.2 Spare Parts ......................................................................................................................................... 102
8.2.1 1.5m Spares Kit [SPR-15-BASIC (Rev A)/70416511] 6003AL,
Servo Amplifiers Inside PCU, with Sk-II GPS .................................................................... 102
8.2.2 1.5m Spares Kit [SPR-15-BASIC (Rev B)/70416810] 6003AL,
Servo Amplifiers Inside PCU, with Acutime Gold GPS ................................................... 103
8.2.3 1.5m Spares Kit [70416501] 6003L, Separate Servo Amplifiers, 40:1 Azimuth Train .... 104
8.2.4 Other Spare Parts Not in Kits ................................................................................................ 105
8.3 Packaging of Parts for Return Shipment to SeaSpace.................................................................. 106
8.4 Replacement Procedures.................................................................................................................. 107
Antenna Components
8.4.1 Pedestal Control Unit (PCU) [12574548] [12574549] .......................................................... 107
8.4.2 Axis Drive Motors [12574501] [12574505] [12574506] [12574507] .................................... 114
8.4.3 Servo Amplifier [12574003] 6003L Only .............................................................................. 122
8.4.5 Level Platform (Level Cage) [12574644][12574544]............................................................ 124
8.4.6 Level Platform (Level Cage) Drive Motor [12574035] ....................................................... 126
8.4.7 Antenna Power Supply [12217001] [12217002] [PWR-220-SEA]...................................... 128
8.4.9 Azimuth Pot [12574510], 6003L Only ................................................................................... 130
8.4.10
Interface Harness [70096105] [70096106].......................................................................... 132
8.4.20
L/S Feed/LNA/ Downconverter [12218xxx] ................................................................. 136
8.4.21
DC Power Injector [12791001]............................................................................................ 138
Antenna Drive Belts
8.4.31
Cross-Level Drive Belt [12574520]..................................................................................... 140
8.4.32
Elevation Drive Belt [12573613]......................................................................................... 142
8.4.33
Azimuth Pot Drive Belt [12574524] 6003L Only.............................................................. 144
8.4.34
Level Platform Drive Belt [12573614] / [12574526] ........................................................ 146
8.4.35
Azimuth Drive Belts [12574521] and [12574523]; [12574525] ........................................ 148
8.5 Calibration and Adjustment Procedures....................................................................................... 152
8.5.1
Balancing the Antenna........................................................................................................ 152
8.5.10
Reading PCU "N" Coefficients........................................................................................... 153
8.5.11
Entering PCU "N" Coefficients .......................................................................................... 155
8.5.12
Calibration of the Level Platform...................................................................................... 156
8.5.13
Azimuth Pot Calibration (6003L only) ............................................................................. 157
8.5.20
Alignment of the Antenna Using pass reception, align and trackeye ......................... 158
8.6 GPS Receiver and Antenna [70170101] (Separate Receiver and Antenna, Sk-II) ..................... 159
8.6.1 Theory of Operation ............................................................................................................... 159
8.6.2 Stand-alone GPS Receiver [70320001] .................................................................................. 160
8.6.3 Stand-alone GPS Antenna [70347001] ................................................................................. 161
8.7 GPS Receiver and Antenna [12120004] (One Assembly, Acutime Gold) ................................... 162
8.7.1 Theory of Operation ................................................................................................................ 162
8.7.2 Stand-alone GPS Receiver and Antenna [70320004]........................................................... 163
Summary of Contents for TeraScan 1.5M
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