User's Manual

SBS-900 Shore Based Radar Systems

Chapter 10: Corrective maintenance

KH-1602-2 issue 1: Standard SBS900 Systems Operator & Maintenance Handbook

Page 172 of 240

10.7.11.2 S band processor removal & replacement

The following process shows the removal of a single S-\[h^ Rb[ljDs_x processor located in the

right hand side of the enclosure.

Prior to undertaking this task, maintainers should familiarise themselves with the processes detailed

below.

Removal

The removal process is identical to the X-band processor removal shown in the previous

section. Please refer this section for instructions.

RF coupling: The only difference between the X-band and S-band removal is the RF coupling. In

the S-band system the waveguide is replaced by a semi-rigid RF coupling.

Replacement

Replacing the S-band SharpEye processor is carried out using the replacement processes described

in the X-band section.

The only difference between the X-band and S-band removal is the RF coupling. In the S-band

system the waveguide is replaced by a semi-rigid RF coupling.

Refitting the semi-rigid RF cable: When refitting the cable, ensure you observe the handling

precautions noted below.

- The nut on the semi-rigid RF cable should be tightened to 1.0Nm.

- H` hi nilko_ ql_h]b cm [p[cf[\f_ nb_ `[mn_hcham mbiof^ \_ a_hnfs ncabn_h ni •finger tight-

- DO NOT over tighten as this can deform and damage the cable.

Semi-rigid coaxial cable handling precautions:

- Take care when removing and re-installing the coaxial cable.

- The rigid coaxial cable must not be bent, crushed, deformed or damaged in any way.

- If the cable is accidently damaged, it must be replaced.