15-9
Section 15
Maintenance & Inspection
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When conducting maintenance work, make sure to turn off the power so that the
power supply to the equipment is completely cut off.
Some equipment components can carry electrical current even after the power switch
is turned off, and conducting maintenance work may result in electric shock,
equipment failure, or accidents.
After the maintenance work, turn the safety switch to stop the radar antenna to "ON".
15.3.1.1 Precautions in mounting the cover
When the cover is removed for regular inspection and replacement of parts and refitted after such work,
the procedures of fastening bolts shall be taken with the following precautions:
[NKE-2255,NKE-1130/A,NKE-1632/A,NKE-2632A,NKE-2632-H,NKE-2103,NKE-2063A]
(1) The proper fastening torque of the fitting bolts (M8) is 1176 to 1470 N•cm (120 to 150 kgf•cm)
(which makes the inside water-tight and protects the packings against permanent compressive
strain). The packings start sticking out from the cover at a torque of approximately 1470 N•cm (150
kgf•cm). Do not fasten the bolts with a torque exceeding the specified value. Otherwise, the
screws may be broken.
(2) Use an offset wrench of 11 mm
×
13 mm or a double-ended wrench of 13 mm
×
17 mm (not longer
than 200 mm).
(3) Screw all the bolts by hand first to prevent them playing, then fasten them evenly in order not to
cause one-sided fastening. (Fasten the bolts with 25% of the required torque at the first step.)
* Fasten the bolts in the diagonal order.
[2]
[1]
[3]
[4]
[5]
[6]
[7]
[8]
[2]
[1]
[3]
[4]
4-M8 (stainless steel) bolt
8-M8 (stainless steel) bolt
Tightening torque: 120 to 150 kgf/cm
Tightening torque: 120 to 150 kgf/cm
Bolt Tightening Order of
NKE-2255 Cover
Bolt Tightening Order of
NKE-1130/1632 Cover
kgf
・
cm
kgf
・
cm
NKE-1130/A
、
NKE-1632/A Cover
Summary of Contents for JMR-5410-4X
Page 2: ......
Page 25: ...xxiii NKE 2255 7 9 6HS Scanner Unit Warning Label ...
Page 27: ...xxv NKE 2103 4 4HS Scanner Unit NKE 2103 6 6HS Scanner Unit NKE 2255 7 9 6HS Scanner Unit ...
Page 54: ...Contents 20 ...
Page 68: ...Section 1 Overview 1 14 Outline Drawing of Radar Antenna NKE 2632 A ...
Page 70: ...Section 1 Overview 1 16 Outline Drawing of Radar Antenna NKE 2043 NKE 2043 ...
Page 72: ...Section 1 Overview 1 18 Outline Drawing of Radar Antenna NKE 2103 4 4HS ...
Page 74: ...Section 1 Overview 1 20 Outline Drawing of Radar Antenna NKE 2255 7 ...
Page 76: ...Section 1 Overview 1 22 Outline Drawing of Radar Antenna NKE 2255 6HS ...
Page 78: ...Section 1 Overview 1 24 Outline drawing of 19inch Display NWZ 214 NWZ 214 ...
Page 80: ...Section 1 Overview 1 26 Outline Drawing of Process Unit NDC 1678 NDC 1678 ...
Page 82: ...Section 1 Overview 1 28 Outline Drawing of Trackball Operation Unit NCE 5605 Option ...
Page 84: ...Section 1 Overview 1 30 Outline Drawing of Junction Box NQE 1143 ...
Page 86: ...Section 1 Overview 1 32 Outline Drawing of 19inch Desktop Frame CWB 1659 ...
Page 88: ...Section 1 Overview 1 34 Outline Drawing of Interswitch Unit NQE 3141 8A Option ...
Page 126: ......
Page 214: ...Section 4 Range and Bearing Measurement Methods 4 32 ...
Page 244: ...Section 5 Basic Operation of the Radar 5 30 ...
Page 324: ...Section 8 Monitoring a Dragging Anchor 8 8 ...
Page 374: ...Section 11 Setting up Screen View 11 20 ...
Page 520: ...Section 15 Maintenance Inspection 15 70 ...
Page 546: ...Section 16 Failures and After Sale Services 16 26 ...
Page 590: ...Appendix A Radar Antenna Display Unit Block Diagrams A 8 A 1 8 NKE 2255 7 9 6HS ...
Page 592: ...Appendix A Radar Antenna Display Unit Block Diagrams A 10 A 1 10 NKE 2063A ...
Page 596: ...Appendix A Radar Antenna Display Unit Block Diagrams A 14 A 2 3 NCE 5794 operation unit ...
Page 622: ...Appendix D Menu List and Materials D 8 Tools VHF Call VHF1 Call VHF2 Call VHF3 Call ...
Page 687: ......