User's Manual

SBS-900 Shore Based Radar Systems
Chapter 9: Planned maintenance
KH-1602-2 issue 1: Standard SBS900 Systems Operator & Maintenance Handbook
Page 92 of 240
SBS-900 Annual planned maintenance record sheet
Inspection sheet
5 of 10
DTX-A7-xx Transceiver enclosure
Task Description Pass Fail
General
cleaning
Clean all exterior surfaces with a soft cloth moistened in a mild non-
abrasive soap solution.
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Physical
inspection
Ensure that all securing bolts are secure and show no signs of severe
corrosion, damage. Pay particular attention to the main chassis
supporting bolts.
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Inspect the unit including all mounting points for any signs of stress
damage.
Severe weather: This inspection should be carried out at the earliest
safe opportunity after the system has been exposed to severe or
adverse weather conditions.
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Check that cable glands, cable entries and waveguide couplings are
securely fastened and appear to be waterproof.
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Within reason and where safe to do so, check all accessible or
exposed cables for any signs of damage and ensure they are safely
secured into/ onto the cable tray or trunking.
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The system should be checked to ensure that there is no obvious
external damage or potential fault conditions that could lead to a
general failure of any part of the system.
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Check that the four wind turned rotary ventilators mounted on top of
the assembly are free from dust and obstructions and can rotate
freely.
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Check that no moisture or water is present within the enclosure. ' '
Static
Desiccator
The sachets in the static Desiccator must be changed every 12
months.
The two sachets are within the desiccator which is located on the
base of the enclosure or on earlier units between the two front access
doors.
Used/ removed sachets must be disposed of in accordance with local
disposal regulation.
When the sachets have been replaced, ensure that the desiccant
enclosure cap is securely in position and fully tightened.
Replacement sachet: 55-100-0494-002
Notes
Sachet shelf life: 2-years
Notes:
- The part number noted above is for 1 sachet, two are required.
- Split or torn sachets must not be used.
- Replacements must be from a sealed package (replacements have a shelf life of 2-
years).
- Two sachets MUST be used.
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