Jrc Jln 550 Installation Manual.pdf

JLN-550 DOPPLER SONAR

INSTALLATION MANUAL

For further information,contact:

Not use the asbestos

URL

http://www.jrc.co.jp

Marine Service Department Telephone : +81-3-3492-1305 +81-3-3779-1420 Facsimile : [email protected] e-mail : AMSTERDAM Branch Telephone : +31-20-658-0750 Facsimile : +31-20-658-0755 e-mail : [email protected] SEATTLE Branch Telephone : +1-206-654-5644 Facsimile : +1-206-654-7030 e-mail : [email protected] CODE No.7ZPNA3603A

01ETM

JUN. 2013 Edition 2

ISO 9001, ISO 14001 Certified

JRC

Printed in Japan

Contents 1.

2.

Introduction .................................................................................................................1 1.1

Function .............................................................................................................................. 1

1.2

Content of This Manual ...................................................................................................... 1

1.3

Components ........................................................................................................................ 2

1.4

Construction ....................................................................................................................... 3

1.5

System Configuration ........................................................................................................ 8

Installing of NKF-770 .................................................................................................. 9 2.1

Installation Drawing............................................................................................................ 9

2.2

Installation Procedure ...................................................................................................... 10

2.3

Dismantling and Keeping .................................................................................................11

2.4

Welding Guide .................................................................................................................. 12

2.5

Painting of Tank ................................................................................................................ 15

2.6

Mounting of the Transducer ............................................................................................ 16

2.7

Painting of Cover Board .................................................................................................. 25

2.8

Piping................................................................................................................................. 26

2.9

Final Check ....................................................................................................................... 28

2.10

3.

Replacing Guide of the Transducer .............................................................................. 30

Installing of NKF-772 ................................................................................................ 34 3.1

Installation Drawing.......................................................................................................... 34

3.2

Installation Procedure ...................................................................................................... 35

3.3

Dismantling and Keeping ................................................................................................ 36

3.4

Welding Guide .................................................................................................................. 37

3.5

Painting of Tank ................................................................................................................ 38

3.6

Mounting of the Transducer ............................................................................................ 39

3.7

Painting of Valve ............................................................................................................... 44

3.8

Piping................................................................................................................................. 45

3.9

Final Check ....................................................................................................................... 47

3.10

4.

5.

6.

7.

Replacing Guide of the Transducer .............................................................................. 48

Installing of NJC-24 .................................................................................................. 59 4.1

Installation Drawing.......................................................................................................... 59

4.2

Installation Guide.............................................................................................................. 60

Installing of NQA-3012 ............................................................................................. 61 5.1

Installation Drawing.......................................................................................................... 61

5.2

Installation Guide.............................................................................................................. 62

Installing of NWW-60 ................................................................................................ 63 6.1

Installation Drawing.......................................................................................................... 63

6.2

Installation Guide.............................................................................................................. 64

Connection between Equipment ............................................................................. 65

7ZPNA3603A

1. Introduction 1.1

Function

The JRC Model JLN-550 Doppler Sonar is an equipment for measuring the bottom tracking speed and water tracking speed, utilizing the reflection of the ultrasonic wave signal from the sea bottom or in the seawater, which are radiated downward obliquely from the transducer with which the hull bottom is installed. This equipment measures in two directional speed of bow and stern line direction of the ship, and right and left direction in the bow. The right and left direction speed of stern is calculated by using the ROT(Rate of turn gyro) signal. (Three axis type) The navigation route distance is multiplied and displayed. The JLN-550 conforms to the IMO (International Maritime Organization) performance standards, provides accurate displays of ship’s speed over a wide range from dead slow to maximum.

Fig. 1.1 Doppler Sonar

1.2

Content of This Manual

This manual has brought notes that install these equipments that compose the device in the hull together. And, it is described as a reference. Refer to an instruction manual and a service manual about the operation after the installing.

1

1.3

Components

The standard equipment and options are shown in the tables below. Standard Equipment Name MAIN DISPLAY

SIGNAL DISTRIBUTOR SIGNAL PROCESSOR TRANSDUCER SPARE PART INSTRUCTION MANUAL

Model NWW-60DA -60DB -60TA -60TB

Q’ty 1

NQA-3012

1

NJC-24

1

NKF-770 7ZXBS0018 7ZPBS2802C

1 1 1

Mass Remarks 2kg DA: 2 axes/Wall mount type DB: 2 axes/Flush-mount type TA: 3 axes/Wall mount type TB: 3 axes/Flush-mount type Select one type. 10kg 15kg 120kg Hull bottom flat type with 40m cable － －

Options Name WING DISPLAY REMOTE DISPLAY

Model NWW-61D -61T NWW-62DA/DB

Q’ty 2 1

-62TA/TB

Mass Remarks 5kg D: 2 axes type T: 3 axes type 1.3kg D: 2 axes type T: 3 axes type A: Wall mount type B: Flush-mount type 3kg 3.5kg GA: Wall mount type GB: Flush-mount type Select one type. 8Kg For OPERATOR UNIT

GYRO SENSOR OPERATOR UNIT

NJZ-1080 NWZ-120GA -120GB

1 1

ＡＣ RECRIFIER

NBA-3263

1

ANALOG DISPLAY

NWW-24xxxxx

ANALOG DISPLAY

NWW-25xxxxx

ANALOG DISPLAY

NWW-26xxxxx

REMOTE DISPLAY

1

DIMMER UNIT

NWW-49A -49B NCM-227

DIMMER UNIT

NCM-329H

1

For NWW-24/26

DIMMER UNIT

NCM-506

1

For NWW-49

DISTANCE COUNTER

NWW-7

1

Flush-mount type

TRANSDUCER

NKF-772

1

Gate valve type with 40m cable

Max. 2

6.5kg Analog indication Flush-mount type 7kg Analog indication Wall mount type 2.5kg Small size analog indication Flush-mount type 2.5kg A: Wall mount type B: Flush-mount type For NWW-60/62

1

2

1.4

Construction

Equipment outline is shown in the following figure: (1) MAIN DISPLAY NWW-60DB/TB

Fig. 1.3 NWW-60TB (Unit: mm)

Fig. 1.2 NWW-60DB (Unit: mm) (2) SIGNAL DISTRIBUTOR NQA-3012

Fig. 1.4 NQA-3012 (Unit: mm)

(3) SIGNAL PROCESSOR NJC-24

Fig. 1.5 NJC-24 (Unit: mm) 3

(4) TRANSDUCER NKF-770

Fig. 1.6 NKF-770 (Unit: mm)

(5) WING DISPLAY NWW-61D/61T (OPTION)

Fig. 1.7 NWW-61D (Unit: mm)

Fig. 1.8 NWW-61T (Unit: mm)

(6) REMOTE DISPLAY (OPTION)

Fig. 1.9 NWW-62DB (Unit: mm)

4

Fig. 1.10 NWW-62TB (Unit: mm)

(7) GYRO SENSOR NJZ-1080 (OPTION)

Fig. 1.11 NJZ-1080 (Unit: mm)

(8) OPERATOR UNIT NWZ-120GA/120GB (OPTION)

Fig. 1.12 NWZ-120GA (Unit: mm) (9) AC RECTIFIRE NBA-3263 (OPTION)

Fig. 1.14 NBA-3263 (Unit: mm)

5

Fig. 1.13 NWZ-120GB (Unit: mm)

(10) REMOTE DISPLAY NWW-49A/49B (OPTION)

Fig. 1.15 NWW-49A (Unit: mm)

Fig. 1.16 NWW-49B (Unit: mm)

(11) ANALOG DISPLAY NWW-24 (OPTION)

-630kt

-525kt

-420kt

NWW-24 NWW-25 NWW-26 (埋め込み ) (壁掛け) (パネル埋込 ) Area Size Green Orange Green Orange Green Orange L NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 4L20G 4L20O 5L20G 5L20O 6L20G 6L20O NWW-2 NWW-2 M 6M20G 6M20O NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 S 4S20G 4S20O 5S20G 5S20O 6S20G 6S20O NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 L 4L25G 4L25O 5L25G 5L25O 6L25G 6L25O NWW-2 NWW-2 M 6M25G 6M25O S NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 4S25G 4S25O 5S25G 5S25O 6S25G 6S25O NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 L 4L30G 4L30O 5L30G 5L30O 6L30G 6L30O NWW-2 NWW-2 M 6M30G 6M30O NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 NWW-2 S 4S30G 4S30O 5S30G 5S30O 6S30G 6S30O

Fig. 1.17 NWW-24 (Unit: mm)

Fig. 1.19 NWW-26 (Unit: mm)

Fig. 1.18 NWW-25 (Unit: mm)

6

(12) DIMMER UNIT NCM-227/329H/506 (OPTION)

Fig. 1.20

NCM-227/329H/506 (Unit: mm)

(13) DISTANCE COUNTER NWW-7

Fig. 1.21

NWW-7 (Unit: mm)

(14) TRANSDUCER NKF-772 (OPTION)

Fig. 1.22

NKF-772 (Unit: mm)

7

1.5

System Configuration

8

2. Installing of NKF-770 2.1

Installation Drawing

99

2.2

Installation Procedure

10

2.3

Dismantling and Keeping

・ Remove the packing after detaching tightening gland from NKF-770T tank part. ・ Keep the detached packing till the installation process of transducer carefully with the NKF-770S transducer part. ・ Fix the tightening gland and washer again temporarily to the tank where the packing was removed.

11

2.4

Welding Guide

Weld the tank to become the same to bottom plate side. Weld to become within installation angle error ±3° according to the bow mark. Weld the tank horizontally. Remove an umbo of 2mm or more (welding character, joint connecting, outlets, and cover of another equipment etc.) within the range of 2m forward of the transducer. ・ Design open ahead and doubling on the bottom plate side in the shipyard according to the classification.

・ ・ ・ ・

Shipyard

Same surface

12

右舷 ＳＴＡＲＢＯＡＲＤ

船首 ＢＯＷ

船尾 ＳＴＥＲＮ

左舷 ＰＯＲＴ

13

The material of the transducer tank used for transducer NKF-770 for Doppler Sonar uses rolled steels SM490A (JIS G3106) for the welding structure that is JIS standard product. The ingredient of the material is shown in the following Tables 1. The ingredients table of the NK material "KA" is shown in the following Tables 2. "SM490" used for this transducer tank can be used because it agrees with this without trouble. The steel material inspection report of this material (MIL sheet) is attached.

MIL sheet value

NK standard

C 0.16

C Less than 0.23

Table 1 SM490 Ingredients Si Mn 0.34 1.32

Table 2 NK material "KA" Si Mn More than 2.5XC Less than 0.35

14

P 0.015

(Unit: %) S 0.004

P Less than 0.040

(Unit: %) S Less than 0.040

2.5

Painting of Tank

Paint the green undercoat paints part in the tank. However, the packing surface and the screw hole are excluded.

15

2.6

Mounting of the Transducer

・ Install 3-4 all screw rods of M8×500 in the cover board mounting hole. (Arrange 3-4 all screw rods of M8×500 in the locale.)

・ Fix cover board temporarily with the M8 nut. (Arrange 3-4 M8 nuts in the locale.) (Note the bow mark of cover board.)

16

・ Put NKF-770 transducer on the mounting plate. ・ Do not lift the main body of transducer by gripping the cable. It causes the disconnection.

Banding band

・ Pass the cable through the tank. ・ Do not detach banding band that is attached to the cable. Pull and raise the cable to the place where banding G band touches the tank.

17

・ Note that there might be the disconnection when the cable is pulled with being twisted. ・ The spacer uses rubber of 10mm in thickness. And, the cover board uses the iron plate of 12mm in thickness.

18

・ Lift transducer of each cover board, and fix temporary by hexagon head bolt M8×20 and several M8 spring washers.

・ Detach all screw rod of M8×500. ・ Align the direction of bow of transducer by using the sucker etc.(Arrange the sucker etc. in the locale.)

Bow mark

19

・ Formally tighten cover board with hexagon head bolt M8×20 and the M8 spring washer, and fill the resin to the counterbored hole.

20

・ Do not fill the resin within the range of the seawater invasion in the tank interior. You may spread the resin on the space between the cover board and the main body of the tank. Fill the resin such as Silicone Bond, etc. to counterbored hole for the installation bolt of the cover board.

Do not fill the resin within the range of the seawater invasion.

Possible to spread the resin. After tightening, fill polyester putty, Silicone Bond or asphalt. (shipyard)

21

・ Tighten until tightening GLAND becomes 5mm from the upper surface of the tank. ・ Do not bend, and install the acute angle with the standing up part of the cable. Do the wiring processing in the cable standing up part so as not to swing by the vibration. Do not pull the cable strongly in the state of kink (It tangles, and twisted state). ・ Parallel Pipe Threads G1(PF1) JIS B0202 is used for the waterproof securing of the screw portion of gland.

An acute angle bend is prohibited strictly. Flange Gland

Gland outlet portion ・ Install it the place separated from the transducer of another equipment by 2m or more for the interference prevention. ・ It is recommended to be installed with Doppler log ahead of echo sounder though it usually installs from the bow in order with low frequency. ・ Install it to be suitable for the direction of the bow in parallel to the bow tail line of bow mark of the transducer within about 3°. ・The tightening torques of the screws such as bolts and nuts not specially specified are based on following Table 1. Table 1 Diameter Material Brass Soft iron

22

Unit

・ Adjust it according to the following procedure when the radiation surface of transducer projects more than cover board by 2mm or more. Adjustment guide When the height adjustment on the transducer radiation surface is necessary, this guide shows the procedure for adjusting it by exchanging spacer. Detaching of transducer 1. Remove the resin filled to the mounting hole of cover board. 2. Detach cover board detaching ①hexagon bolt M8X20 8 places. 3. Pull out transducer from the tank. Do not add strong power to the cable. 4. Detach spacer from the transducer.

Bow

Tank

Bottom plate

Spacer

Bow mark

Transducer Radiation surface Cover board

Mounting hole ①Hexagon bolt M8X20 Spring washer M8 8 places

Detaching of transducer

23

Polyester putty Delete silicon bond or asphalt.

Installing of transducer 5. Put spacer1 on transducer with the double-stick tape. (Arrange spacer1 newly.) 6. Insert the transducer into the tank noting the bow mark with cover board. Do not add strong power to the cable. (Do not bend the base of the cable rapidly.) 7. Install spacer2 in cover board. (Arrange spacer2 newly.) 8. Hold the transducer with cover board, and fix with ①hexagon bolt M8X20 8 places. (Recommended tightening torque 1715N･cm) (The bow direction error margin of transducer is within ±3°. ) 9. Fill the polyester putty, silicon bond or asphalt to the installation hole of cover board.

Tank

Bottom plate

Spacer1

Bow mark Spacer2

Transducer

Cover board

①Hexagon bolt M8X20 Spring washer M8 8 places Installing of transducer

24

2.7

Painting of Cover Board

・ Paint the cover board as well as the bottom plate. ・ Do not paint the transducer radiation surface. ・ The inside of the tank and the inside of the cover board are painted. Avoid thick painting that the projection becomes 2mm or more when the cover board is installed on the tank.

Transducer radiation side Masking example

Cover board

25

Bottom plate

2.8

Piping

・ Give the piping waterproofed to a position that is higher than the sea-level in preparation for "Cable protection and interference prevention from other cables" and "Water leak from a tightening gland part". ・ Do the vibration prevention measures and the self-weight hold measures of the cable if necessary by packing the dry sand etc. in piping. ・ Fix the cable so as not to vibrate when installing it in the watertight compartment. ・ Do not pull the cable strongly in the state of kink (It tangles, and twisted state) when laying the cable. ・ Secure 100mm or more for the cable bend radius. ・ A cable acute angle bend in the gland exit part is strict prohibition. ・ Fix at intervals within 1m so as not to put the load on the cable or give piping to a position that is higher than the sea level. ・ Fix the cable so as not to vibrate. ・ Separate from the cable of Echo Sounder by 0.5m or more for the interference prevention.

Piping Necessary to be able to detach.

More than R100 More than R100

Detach bolt and gasket.

More than R100

Gland Fix

Fix with banding band Fix with banding band

Banding band

Tank

Fixed example

26

Watertight compartment

Cable

Lay pipes to a position that is higher than the sea-level.

Sea-level

More than R100

Piping

Necessary to be able to detach.

More than R100

Banding band

Piping example ・ Safety improves because it can make the double watertight structure if the watertight flange and sheet packing of the option are added. However, it becomes impossible to lay the tank directly.

27

2.9

Final Check

Quality confirmation of transducer when installing 1) Phenomenon to generate in the equipment The quality of the transducer was not confirmed before the trial. And, the trial was done without knowing the thing that the transducer has been damaged. Therefore, the case that becomes a big problem has been generated. 2) Concrete content of work To confirm whether transducer is normal before the ship is launched, carry out the following work: [1. Confirmation of insulation resistance and thermistor, 2. Confirmation of the resonance frequency of transducer]. 1. Confirmation of insulation resistance and thermistor 1-1 Remove the transducer cable from the terminal TB3 of Signal Processing (NJC-24). 1-2 Measure the insulation resistance between each TD1-TD6 element interval and shield using 500V megger. 1-3 Measure the resistance of thermistor TH by the multimeter. (Do not measure TH by megger.) Measurement result -1 Transducer and the transducer cable are normal for 50MΩ or more between elements, 10MΩ or more between the element and the shield wire, and 10MΩ or more between the shield wire and the hull. -2 The value of the thermistor is normal for 4-50kΩ. (Measurements are different depending on the temperature.) Transducer cable CFQ-6981

TB3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Red Org Blu/blk Blk/wht Grn/blk Org/blk Wht Blk Blu/wht Blk/red Grn/wht Red/wht Wht/blk Red/blk Blu Grn

Underwater Transducer connector CFT-033 TD1 TD2 TD3 TD4 TD5 TD6 TH

Sheild

2. Check the resonance frequency of transducer 2-1 Remove the transducer cable from the terminal TB3 of Signal Processor (NJC-24). 2-2 Measure each transducer by using antenna analyzer (AA-30). 2-3 After setting antenna analyzer (AA-30) to the SWR mode, sweep 240kHz±200kHz for TD1-TD4, and 2MHz±500kHz for TD5 and TD6. 2-4 The Dip point of the sweep figure (point that the signal becomes minimum) shows the resonance frequency. Measurement result -1 When TD1-TD4 have the dip point in the vicinity of 240KHz and TD5 and TD6 have the dip point in the vicinity of 2MHz, the resonance frequency of the transducer is normal. (The sweep figure is different according to the channel.) -2 When there is no Dip point in the result of the measurement, it is poor engagement of the underwater connector, or defective of the transducer. When the underwater connector is a poor engagement, engage an underwater connector in the transducer tank completely. When transducer is defective, replace the transducer.

28

Poor engagement of underwater connector There is a space, and it becomes noncontact.

The engagement of an underwater connector is normal. Make the gap zero.

Sweep figure of TD1～TD4 Normal Figure Example・1

Normal Figure Example・2

Dip point 点

Dip point

Poor Engagement Figure of the Underwater Connector: Example・3

Sweep figure of TD5～TD6 Normal Figure Example・4

Figure of Defective Element: Example・5

Dip point

29

2.10

Replacing Guide of the Transducer

1. Remove the resin filled to the installation hole of the cover board. 2. Detach ①hexagon bolt M8X20 3-4 places, and install all screw rod (M8X500) and fall prevention nuts (NB) to the place. (local arrangements) 3. After ①hexagon head bolt M8X20 of the remainder is detached, lower cover board slowly below while loosening the fall prevention nut manually. 4. When you pull out the transducer from the tank, do not add strong power to the cable. (Do not hang the cable of the transducer gripping it. It causes the cable disconnection.) 5. After detaching hexagon bolt M5X12 2 places, detach connector metal fittings A. 6. After separating the underwater connector, detach transducer. Cable

Bow

Tank ②Hexagon bolt M5X12

Underwater connector Connector fittings metal A

Spring washer M5 2 places

All screw rod M8 Bottom plate Length: Approx. 500 Spanner (for M5)

Connector sleeve

Connector fittings metal B

Spacer

Underwater connector (transducer side)

Transducer Bow mark

Cover board Installation hole Polyester putty Delete silicon bond or asphalt.

Fall prevention nut

Ratchet wrench (for M8)

①Hexagon bolt M8X20 Spring washer M8 8 places 30

7. After detaching hexagon bolt M10X30 1 place from detached transducer, detach the entire connector metal fittings B. 8. Install the entire detached connector metal fittings B on new transducer. (Note the direction of the bow. ) 9. Put the spacer on new transducer with the double-stick tape. (Arrange the spacer newly.)

Connector metal fittings A Connector metal fittings B Spacer

Connector sleeve Put it on the transducer.

Bow mark

③Hexagon bolt M10X30

Bow

Spring washer M10 1 place Transducer

31

11. Connect a new transducer side underwater connector with a cable side underwater connector. (Lose the space in the joint part of an underwater connector.) 12. Install connector metal fittings A in ②hexagon bolt M5X12 2 places. (Store the connector sleeve of the transducer side underwater connector into connector metal fittings B.) 13. Insert the transducer into the tank slowly noting the bow mark with cover board while loosening the fall prevention nut manually. Do not add strong power to the cable. (Do not bend the base of the cable rapidly.) 14. Hold the transducer with cover board, and fix with ①hexagon bolt M8X20 8 places. (Recommended tightening torque 1715N･cm) (The bow direction error margin of transducer is within ±3°. ) 15. Fill the polyester putty, silicon bond or asphalt to the installation hole of cover board. Recommended goods: ･Par Micron Guard H, BO CHEMICAL,CO.,LTD ･Underwater bond # 16455, Konishi Co., Ltd. How to use: Spread it after mixing the same amount of the base resin and the curing agent. Underwater connector (Cable side)

Underwater connector (Transducer side)

Underwater connector Cable surplus length 550mm

(Transducer side)

Tank ②Hexagon bolt M5X12 Connector metal fittings A Lose the space in the joint part of the connector. Connector sleeve Connector metal fittings B

Spacer

Cover board

Fill the polyester putty, silicon bond or asphalt to the installation hole.

Transducer Bow mark

The installation error margin in the bow direction is made within ±3°.

Bow

32

・ NKF-770 transducer exchange kit MPBX44074

33

3. Installing of NKF-772 3.1

Installation Drawing

34

3.2

Installation Procedure

35

3.3

Dismantling and Keeping

・ Spend it to a welding process after taking out a tank from wooden frame packing. ・ Keep the other parts until transducer setting.

Tank

Packing (2 pcs) Transducer

Bolt and nut (24 pcs) Gate valve

36

3.4 ・ ・ ・ ・ ・

Welding Guide

Make the hole of φ236 in the diameter for bottom plate. Weld so that the tank and bottom plate become flat same side. Install the place that becomes the horizontal for sea bottom. Do not damage the packing side. Design open ahead and doubling on the bottom plate side in the shipyard according to the classification.

Packing side

Bow direction

Bow mark

Bottom plate

Weld to become flat same side. Mounting holeφ236

37

・ Remove an umbo of 2mm or more (welding character, joint connecting, outlets, and cover of another equipment etc.) within the range of 2m forward of the transducer.

No projection in this bow area. Grinder finish (Shipyard) Transducer

Bow

3.5

Painting of Tank

・ Paint as well as bottom plate excluding the packing side in the tank. ・ The tank has processed shop primer. (Epicon zinc rich primer B-2 made by Chugoku Marine Paints Ltd.)

38

3.6

Mounting of the Transducer

・ Install the gate valve and transducer in the tank noting the bow mark. ・ The direction of the gate valve can be set by 30° pitch. ・ You may spread the liquid seal material on the gasket.

Bow mark

30° pitch

Bow mark

39

・ Dispose the protection metal fittings of the transducer after it detaches.

Transducer insertion position mark

Protection metal fittings of the transducer

Unnecessary parts Detach Transducer

Radiation surface

Bottom plate

40

・ Consider it so as not to damage the equipment with a manually operated chain hoist when the hook is prepared in the ceiling and you carry gate valve (150kg) and transducer(77kg).

・ The height of the ceiling is recommended to secure an enough maintenance space (2500mm or more).

41

・ The structure has changed along with the stopper addition since January, 2006.

Current structure

Old structure

Stopper

42

・ Do not loosen it because lock nut M16 (two places) had been adjusted when it shipped.

Lock nut M16

・ Do not shut the valve by turning the handle of the gate valve with transducer lowered.

43

3.7

Painting of Valve

Paint a green surface of the gate valve. Paint a green valve handle.

Do not paint excluding a green part of the gate valve.

44

3.8

Piping

・ Install NKF-772 in the watertight compartment. ・ Do not flood the installed watertight compartment. ・ Give the piping waterproofed to a position that is higher than the sea-level in preparation for "Cable protection and interference prevention from other cables" and "Water leak from a tightening gland part". ・ Do the vibration prevention measures and the self-weight hold measures of the cable if necessary by packing dry sand etc. in piping. ・ Fix the cable so as not to vibrate when installing it in the watertight compartment. ・ Do not pull the cable strongly in the state of kink (It tangles, and twisted state) when you lay the cable. ・ Secure enough maintenance space to be able to do the transducer replacing work etc. ・ Separate from the cable of the echo sounder by 0.5m or more for the interference prevention.

45

Piping

Possible to detach More than R100

Cable

More than R100

Fixing

Fixing Fixing

Watertight compartment

Possible to detach More than R100

More than R100 Caution

Fix with attached banding band.

Gland An acute angle bend is strict prohibition.

Gate valve

Fix with attached banding band.

More than R100 Gland

Gland outlet portion

Caution of laying cable ・ A cable acute angle bend in the gland outlet part is strict prohibition. ・ Do not pull the cable strongly in the state of kink (It tangles, and twisted state) ・ Lay pipes to a position that is higher than the sea level.

46

3.9

Final Check

・ Execute the final hydrostatic test. ・ When leaking from V gasket part, delete shim right and left evenly after loosening the M24 nut . And, tighten increasingly V packing after tightening the M24 nut again.

Nut Ｍ24

Shim

Shim

V packing part

・ Execute an electric final check similar to clause 2.9.

47

3.10

Replacing Guide of the Transducer

This chapter shows the procedure when exchanging it in the sea for the transducer damage after beginning to operate it. Carry the gas detector to confirm enough oxygen is secured when it goes down to the bottom of a ship.

Pipe

Sea chest

Valve

Tank

１. Check the mark: Check the transducer insertion mark. And check the opened mark of valve. Transducer insertion mark

Opened mark of valve

48

2. Remove the nut：Remove the nuts of sea chest.

Remove nut M24 (Spring washer).

Lift up the pipe by using the chain block.

Pipe

Remove nut M24 (Spring washer).

49

3. Check the mark：Lift up the pipe by using the chain block. And check the upper position mark.

Transducer insertion mark

Upper position mark

430mm Raise

50

4. Close the valve. Check the mark. Turn the steering wheel, and close a valve. （Strongly close it with a jig）

Opened mark

Closed mark

5. Remove bolts and nuts. : Remove only eight places of bolt and nuts.

Only eight places remove the M20 bolts and nuts. Keep four places of opposite angle. For safety purposes, do not remove all place.

51

6. Remove the sea chest.：Lift up the sea chest.

Loosen the 4-M20 bolts and nuts, and lift up the sea chest. Sea chest

Loosen the M20 bolts and nuts. (four places)

Gasket

Make a gap. Seawater inside the valve appears. When water breaks out in large quantities, close the bolts and nuts. Then confirm valve shutting.

Sea chest and a gasket adhere, and there is the case that can not easily lift up.

52

7. Sea chest separation：remove sea chest completely.

Separate the sea chest.

Change the gasket for a new one. （MPPK30916） Paint the surface with fluid sealant materials.

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8. Move the pipe ：Slide the pipe.

Pipe

Slide the pipe.

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9. Loosen the gland. Remove the bolts of transducer fixation.

Remove the bolts Ｍ10. (four places)

Packing Transducer

Loosen the gland. washer

10. Take out the transducer： Draw out the transducer from the pipe. Pipe

Protection rubber

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Transducer

11. Replace the transducer : Remove the protection rubber and the locking sleeve and remove the transducer.

Protection rubber

Locking sleeves

Locking sleeves Connectors

Protection rubber

56

Locking sleeves

12. Apply the vacuum grease：Apply vacuum grease to the connector. Do not apply to the terminal.

Apply vacuum grease to the connector. Do not apply to the terminal.

Terminal

13. Reassemble it：Change the transducer and assemble it again in a reverse procedure.

New transducer. Be careful to bow direction.

With no gaps

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14. Last confirmation

Transducer insertion mark

Bow mark

Necessary tool ・ Chain block ・ Wire ・ Shackles ・ Gasket MPPK30916 ・ Jig for handle ・ Fluid sealant material NIHON HERMETICS CO., LTD. HERME OIL SEA No.1 Equivalent ・ Vacuum grease Shin-Etsu Chemical Co., Ltd. Vacuum grease HIVAC-G Equivalent ・ Spanner M24 (wrench No.36) M20 (wrench No.30) M12 (wrench No.17)

: one or two : one or two : two or four : one : one : one :5ZZUB00001 : one : 5ZZHB00009 : two each

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4. Installing of NJC-24 4.1

Installation Drawing

59

4.2

Installation Guide

・ Do not install in the place where the vibration such as deck crane and anchor drive equipment neighborhood is strong. The allowable vibration level is shown below. The vibration measurement point is the upper surface of the signal processor unit.

Figure Allowable Vibration Level

・ Execute the earth construction by using the copper plate provided by not the earth lead but the attachment. In addition, earth it to the stud bolt etc. welded directly to the hull after peeling off painting enough. ・ The unit install in the distance that the transducer cable reaches. Because the IP grade is IPX5, this unit is usually installed in boatswain’s store. ・ As the transducer cable may receive or generate noise, install the unit in a place that is free of interference. Usually, it covers the cable with the piping of the exclusive use from the transducer to the signal processor. ・ Install it vertically on the wall so that the cable inlet becomes it below.

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5. Installing of NQA-3012 5.1

Installation Drawing

61

5.2

Installation Guide

・ As the signal cable may receive or generate noise, install the unit in a place that is free of interference. Do not install on the coaxial cable side of the DSB radio equipment and the amateur radio equipment. ・ Do not install in the place where direct sunshine is received (The wing display is excluded), the spray of the wave is received, and the hot wind is received.

62

6. Installing of NWW-60 6.1

Installation Drawing

63

6.2

Installation Guide

・ As the signal cable may receive or generate noise, install the unit in a place that is free of interference. Do not install on the coaxial cable side of the DSB radio equipment and the amateur radio equipment. ・ Do not install in the place where direct sunshine is received (The wing display is excluded), the spray of the wave is received, and the hot wind is received.

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7. Connection between Equipment

65

JLN-550 DOPPLER SONAR

INSTALLATION MANUAL

For further information,contact:

Not use the asbestos

URL

http://www.jrc.co.jp

Marine Service Department Telephone : +81-3-3492-1305 +81-3-3779-1420 Facsimile : [email protected] e-mail : AMSTERDAM Branch Telephone : +31-20-658-0750 Facsimile : +31-20-658-0755 e-mail : [email protected] SEATTLE Branch Telephone : +1-206-654-5644 Facsimile : +1-206-654-7030 e-mail : [email protected] CODE No.7ZPNA3603A

01ETM

JUN. 2013 Edition 2

ISO 9001, ISO 14001 Certified

JRC

Printed in Japan