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4-2
4.1.2. Parts Replacement for the Scanner Unit NKE-2254
[Required tools]
•
Tools for removing the cover from the scanner unit
A wrench (width across flats 13 mm for M8 bolts)
• Tools used in each part replacement procedure
[Replacement procedure]
(1) Before starting the work, turn off the
safety switch at the bottom of the scanner
unit.
(2)
Loosen the four hexagon bolts, and
remove the pedestal cover.
To replace the following parts, remove
the cover from the left (port) side:
• Motor
• Motor driver circuit
To replace the following parts, remove
the cover from the right (starboard) side:
• Transmitter (magnetron, modulation
circuit, or fan for the modulation circuit)
• Receiver
• T/R control circuit
• Power
circuit
• Encoder
Ship's heading
bearing
Set the safety
switch to OFF.
Ship's heading
bearing
Loosen the four
hexagon bolts.
Содержание JMA-5212-4
Страница 2: ......
Страница 7: ... Chapter 1 Equipment Overview ...
Страница 8: ... ...
Страница 11: ... Chapter 2 Equipment Overview ...
Страница 12: ... ...
Страница 34: ...2 22 ...
Страница 35: ... Chapter 3 Service Parts ...
Страница 36: ... ...
Страница 43: ...3 7 Figure 3 1 Exploded Diagram of the NKE 2103 ...
Страница 47: ...3 11 Figure 3 2 Exploded Diagram of the NKE 2254 ...
Страница 51: ...3 15 Figure 3 3 Exploded Diagram of the NDC 1460 Fuse nut Connector nut Connector nut ...
Страница 53: ...3 17 Figure 3 4 Exploded Diagram of the NCE 7699A ...
Страница 54: ...3 18 ...
Страница 55: ... Chapter 4 Replacement of Major Units ...
Страница 56: ... ...
Страница 108: ...4 52 ...
Страница 109: ... Chapter 5 Program Update ...
Страница 110: ... ...
Страница 114: ...5 4 ...
Страница 115: ... Chapter 6 Troubleshooting ...
Страница 116: ... ...
Страница 150: ...6 34 ...
Страница 151: ... Chapter 7 Drawings ...
Страница 152: ... ...
Страница 154: ...7 2 7 1 1 Outline Drawing of the Scanner Unit NKE 2254 7 Figure 7 1 Outline Drawing of the Scanner Unit NKE 2254 7 ...
Страница 155: ...7 3 7 1 2 Outline Drawing of the Scanner Unit NKE 2254 9 Figure 7 2 Outline Drawing of the Scanner Unit NKE 2254 9 ...
Страница 158: ...7 6 7 1 5 Outline Drawing of the Display System NDC 1460 Figure 7 5 Outline Drawing of the Display System NDC 1460 ...
Страница 162: ...7 10 7 1 9 Outline Drawing of the Rectifier NBA 5111 Option Figure 7 9 Outline Drawing of the Rectifier NBA 5111 Option ...
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