User's Manual Part 2
Chapter 6 Maintenance
Contents
6 Maintenance............................................................................... 6-1
6.1 Introduction............................................................................................ 6-1
6.2 Test Equipment ....................................................................................... 6-1
6.3 Required Tools ........................................................................................ 6-1
6.4 Preventative Maintenance....................................................................... 6-2
6.5 Replacement Procedures......................................................................... 6-2
6.5.1 Combined DRU Shutdown................................................................. 6-3
6.5.1.1 Full System Shutdown ........................................................... 6-3
6.5.1.2 Combined DRU Low Band Sub-system Shutdown....................... 6-4
6.5.1.3 Combined DRU High Band Sub-system Shutdown ...................... 6-4
6.5.2 Independent DRU-200 Shutdown....................................................... 6-5
6.5.2.1 Full System Shutdown ........................................................... 6-5
6.5.2.2 Low Band Sub-system Shutdown............................................. 6-6
6.5.2.3 High Band Sub-system Shutdown............................................ 6-6
6.5.3 High Band Exciter (HBE) Replacement................................................ 6-7
6.5.3.1 HBE Removal ....................................................................... 6-7
6.5.3.2 HBE Installation.................................................................... 6-8
6.5.4 Low Band Exciter (LBE) Replacement ................................................6-10
6.5.4.1 LBE Removal.......................................................................6-10
6.5.4.2 LBE Installation ...................................................................6-11
6.5.5 Terrestrial Repeater Monitoring System (TRMS) Replacement ...............6-13
6.5.5.1 TRMS Removal ....................................................................6-13
6.5.5.2 TRMS Installation.................................................................6-14
6.5.6 Air-to-Air Heat Exchanger/Heater Replacement...................................6-15
6.5.6.1 Air-to-Air Heat Exchanger/Heater Removal ..............................6-15
6.5.6.2 Air-to-Air Heat Exchanger/Heater Installation...........................6-19
6.5.7 HPA PSU 30 VDC Rectifier Module Replacement ..................................6-20
6.5.7.1 HB HPA PS1 (30 VDC Rectifier Module) Removal.......................6-21
6.5.7.2 HB HPA PA 1 (30 VDC Rectifier Module) Installation ..................6-21
6.5.7.3 LB HPA PS 1 (30 VDC Rectifier Module) Removal ......................6-22
6.5.7.4 LB HPA PS 2 (30 VDC Rectifier Module) Installation...................6-22
6.5.8 HPA PSU Mounting Shelf Replacement...............................................6-23
6.5.8.1 HPA PSU Mounting Shelf Removal...........................................6-23
6.5.8.2 HPA PSU Mounting Shelf Installation .......................................6-25
6.5.9 HPA Replacement...........................................................................6-26
6.5.9.1 High Band HPA Removal .......................................................6-30
6.5.9.2 High Band HPA Installation....................................................6-30
6.5.9.3 Low Band HPA Removal ........................................................6-31
6.5.9.4 Low Band HPA Installation.....................................................6-31
6.5.10 7/8” Short U-link/Coupler Replacement .............................................6-32
6.5.10.1 HB 7/8” Short U-link/Coupler Removal ....................................6-32
6.5.10.2 HB 7/8” Short U-link/Coupler Installation ................................6-32
6.5.10.3 LB 7/8” Short U-link/Coupler Removal.....................................6-33
6.5.10.4 LB 7/8” Short U-link/Coupler Installation.................................6-33
6.5.11 7/8” Long U-link/Coupler Replacement ..............................................6-34
6.5.11.1 7/8” Long U-link/Coupler Removal..........................................6-34
6.5.11.2 7/8” Long U-link/Coupler Installation ......................................6-34
SX03-10000-01-M01