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9.10 Maintenance
9.10.1 General
maintenance
It is necessary to perform the maintenance services listed below to keep the radar unit
in good working conditions. Proper maintenance of the radar unit minimizes the possi-
bility of machine failures. The maintenance operations that are common to all compo-
nents of the radar unit are listed below.
1. Cleaning
1. Cleaning
1. Cleaning
1. Cleaning
Remove dirt, dust, or water-spray from the radar unit enclosure and keep it as clean as
possible. Use a dry lint-free cloth.
2. Screw inspection
2. Screw inspection
2. Screw inspection
2. Screw inspection
Check the screws used to assemble and secure the components of the radar unit for
loose connection.
3. Cabling check
3. Cabling check
3. Cabling check
3. Cabling check
Check the cables connecting between the components (between the scanner unit and
display unit, display unit and power supply, and display unit and optional devices) for
poor connection.
WARNING
Before starting maintenance work, be sure to turn off the main power source.
If a rectifier unit is used, in particular, turn off power to the display unit. Note
that voltages from the rectifier unit are always present even if the radar is
stopped. It may result in sereve electric shock or breakdown.
Summary of Contents for JMA-2343
Page 1: ...船舶用レーダ装置 JMA 2343 2344 MARINE RADAR EQUIPMENT 取扱説明書 INSTRUCTION MANUAL ...
Page 2: ......
Page 17: ...J JM MA A 2 23 34 43 3 2 23 34 44 4 取 取扱 扱説 説明 明書 書 日本語版 ...
Page 30: ...14 1 4 構造 第 1 1 図 NKE 249 空中線外形図 ...
Page 31: ...15 第 1 2 図 NKE 250 空中線外形図 ...
Page 32: ...16 第 1 3 図 NCD 4170 指示機外形図 ...
Page 115: ...99 9 2 3 装備ケーブルの接続 1 レドーム型空中線 NKE 249 ...
Page 116: ...100 ...
Page 117: ...101 2 回転型空中線 NKE 250 ...
Page 150: ...134 ...
Page 163: ...147 1 4 Configuration Fig 1 1 OUTLINE DRAWING OF SCANNER UNIT NKE 249 ...
Page 164: ...148 Fig 1 2 OUTLINE DRAWING OF SCANNER UNIT NKE 250 ...
Page 165: ...149 Fig 1 3 OUTLINE DRAWING OF DISPLAY UNIT NCD 4170 ...
Page 249: ...233 9 2 3 Connection of cables to be assembled 1 Radome scanner unit NKE 249 ...
Page 250: ...234 ...
Page 251: ...235 2 Rotary scanner unit NKE 250 ...
Page 285: ...付 付 図 図 A At tt ta ac ch he ed d F Fi ig gu ur re es s ...
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Page 308: ... 図 118 指示機回路ブロック図 Fig 118 BLOCK DIAGRAM OF DISPLAY UNIT ...
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