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PLAN RECORD PREPARED FOR S.NO.1246 .
AIR GUARD 3AS (STERN TUBE AFT SEAL) INSTRUCTION MANUAL.1 . =~-j]-~ 3AS (~}'0)W!
-J~)IIe#1>r HA1
STERN GUARD MK-II (STERN TUBE FWD SEAL) INSTRUCTION MANUAL .2 . X914 -f; MK-II (~Yp ` Aila(Si-JL)X74REBAS
MEASUREMENT MANUAL OF WEAR DOWN OF STERN TUBE BEARING FOR IN-WATER SURVEYS .69 ^- 783 .
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MC-22
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NAME OF
JAPAN MARINEMAKER'S DRAWING
MAKER
TECHNOLOGIES LTD.
OON-
FERRED
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SHIP&MARINEDEPARTMQII'
HULL&MACK OUI'ETTDES. SECT.
SCAM
QUATORFINISHED PLA
ESHIPPING I NC . MIL EXCELLENC
CLASS ABS
ORDER
ITF.M
DRAWING NO.
S.NO.12*/47/
GA- 30821 - F
• t t H H H H H H H WBABC Wottf{ Ift. AX A A X S T T T E E it 7I$ * 13Z I* IIi
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SHIPPING INC .
A4A 3
SUM
MITSUBISHI HEAVY INDUSTRIES, LTD .Ak
KOBE SHIPYARD AND MACHINERY WORKS
'79
INSTRUCTION BOOK OFSTERN TUBE SEALING
PAGE
1 - 60
61 ^- 68
S+11J WITH
EQUATOR
4,500 TEUCONTAINER SHIP
E
I ULNEHAL OU I-LINL :
SIHUC-I UHF
I S I LHN I UF~L SLAL1 . 1 AI- I SEAL .
: . 1 .2 FWD SEAL
NAMES OF HESPEC LIVE PAR I S ETCH AIHGUAHD'"' 3AS
:3. LOUIPME N I - AND PIPING SYSTEM
-1 . WLAH DOWN MEASURING
5. ME I - HOD OF USE5.1 PHEPARAI ION AND CONFIHMATION BEFORE USE5 .2 METHOD OF USE5 .3 MEASURES UNDER REST CONDITION
6. HOU I INE WORKS FOR CHECK AND OPERATION6 .1 ITEMS TO BE CHECKED UP AND CARRIED OUT AT THE TIME OF WATCH6 .2 ITEMS TO BE CARRIED OUT ON OCCASION6 .3 ITEMS TO BE CARRIED OUT PERIODICALLY6.4 1 I -EMS 10 BE REPLACED PERIODICALLY
/. CONFIRMATION METHOD OF TROUBLES OR ABNORMALITIES AND COUNTERMEASURES
8 . WORLD WIDE SERVICE NETWORK
J . RECOMMENDED L.O. FOR STERN TUBE BEARING AND SEAL
Al (ACHED 1 . MAINTENANCE FOR MICRO-MIST SEPARATOR2 . LUBE OIL FOR STERN TUBE SEALAND BEARING3. STERN TUBE SEAL DRAWINGS4. PIPING DIAGRAM5. FLUSHING PROCEDURE FOR AIR SUPPLYAND DRAIN LINE OF AIRGUARD"3AS6 . DATA OF AIRGUARD 3AS SEAL SYSTEM
CONTENTS
I
1 . GENERAL OUTLINE
" AIRGURD" 3AS" contains 3pcs of seal ring . And fwd seal is the same as conventional MK 11 typecontaining 2pcs of seal ring .
" AIRGURD" 3AS" as aft seal device shuts out sea water ingress by means of air bleeding fromaftrnost seal ring .
By bleeding air pressure into the sea, sea water pressure at aft seal is detected automatically. And itgets to control the pressure of the oil circulation going through seal chamber forward side of air chamber(between #2 - #3 seal rings)and stern tube. Consequently, it brings lightening a load to seal rings .
Furthermore, it is possible to save man power by adopting system components combining with aircontrol and oil circulation line and watch the condition of the seal . The following explanation will assist forsafety ocean going. And please see attached manual for fwd seal MKII(Y03-3612) .
2. STRUCTURE2.1 STERN TUBE SEAL2.1 .1 AFT SEAL (Refer to Attached 3 - 112)
The aft seal consists of three major parts, i .e ., (1) three rubber seal rings and P-ring, (2) a metalhousing holding the rubber seal rings, and (3) a liner which rotates together with the propeller shaft .
The metal housing is made up, in the order from the stern frame side, of spacer, aft casing flange, aftintermediate ring A, aft intermediate ring B and a split type aft seal cover and P-ring cover. Rubber sealrings are inserted between three metal rings, and bolted together . The clamp section of each seal ringsare securely fitted to the metal ring's inner circumferences and to the small grooves on the inner side ofthe metal rings, so that the clamp part is made rigidly oil-and-water-tight . Provide P-ring between aft sealcover and P-ring cover, so protection against fishing nets.
The material of the liner is highly resistant to corrosion and wear .
2 .1 .2 FWD SEAL (Refer to Attached 3 - 2/2)The fwd seal consists of four major parts, i .e ., (1) two rubber seal rings, (2) a metal housing holding the
rubber seal rings, (3) a liner which rotates together with the propeller shaft, and (4) a clamp ring whichholds the liner .
The metal housing is made up, in the order from the stern side, of casing flange, intermediate ring andseal cover.
The metal rings of the fwd seal are bolted together, so that the rubber seal rings can be readilyclamped and assembled, similar as in the case of the aft seal .
The material of the liner is used excellent wear-resistant and lip-lubricating properties .
2.2 NAME OF PARTS FOR AIRGUARD" 3ASAttached 3. for STERN TUBE SEAL "AIRGUARD°'3AS" shows name of parts for "AIRGUARD"3AS" .
3. EQUIPMENT AND PIPING SYSTEMA piping diagram is shown in the attached 4 . Flow controller in the air control unit transfer the air of
constant flow into the air chamber (between #1 and #2 seal rings) and purges the air to the sea waterside. Air relay controls the air pressure of the L .O. tank unit and maintains the oil pressure in the oilchamber (between #2 and #3 seal rings), and in the stern tube (between #3 and #4 seal rings) constantlyhigher tan the air pressure in the air chamber .
A small amount of the air flows constantly from the air chamber to inboard, thus leaking sea water andlube oil can be collected by the drain collection unit and press . gauge unit.
The functions of each chambers are as follows .OAir chamber between #1 and #2 seal rings
Sea water and lube oil are completely separated by this chamber . Air purges at the #1 seal ring tothe sea water side since the air pressure in the chamber is maintained a little higher than the seawater pressure. Thus #1 seal ring seals the sea water completely . When sea water or lube oil leaksinto this chamber, they can be led to inboard and collected .
OOil chamber between #2 and #3 seal ringsA part of oil delivered from stern tube L.O. pump is delivered into chamber of #2 and #3 seal rings,and return into stern tube through #3 seal ring . L.O. tank unit keeps oil pressure always higher thanthe pressure of the air chamber (between #1 and #2 seal rings) and follows the ship draft .
Oil chamber between #3 and #4 seal rings (in the stern tube)Oil is usually circulated by stern tube L .O. pump. The pressure in the stern tube is automatically setabout 0.015 MPa lower than the pressure in the #2 and #3 seal rings, and change following draft.
Oil chamber between #4 and #5 seal rings (Fwd seal)Forced circulation system .
Table 1 summarizes the above .
Item
Arrangementof seal rings
Working fluid _
PressureconditionMPa
Condition ofpressurecontrol
Number ofpipings
Table 1 . Composition and condition of respective sealing chambersComposition and condition
#1
#2
#3
#4(Outboard)
Pyw
Pte
P.
Bearing
P45part of
stern tube
Changeaccordingto draft
V
Sea water1AirOilOilOil
P,1 ° Psw
P23 = P12
P34 ° Pb
abt. 0 .01
abt.0.03--
abt. 0.0150.015
0.05
Pressurizing circulation
Equipped .following to change of the draft
Two
One(air, drain)
(inlet)
3
None
#5
P45 -
0.01^-0.02
Forcedcirculation
Two(inlet and exit
Twoof oil)
4.WEARDOWN MEASURING
After completely installing main engine, shafting and aft/twd seal, it records the outcome measured withwear down gauge .
This measuring is to be realized every docking . And when repairing and overhauling seal, it is to bedone before and after them . It is recommendable to consider the outcome, to measure wear down whenoverhauls on repairing seal, as the standard valve for the future .
In case of vessel adopting in-water survey, it depends on the manual No . Y03-1523 .
5. METHOD OF USE
The method of using this device is explained referring to attached 4 . In the air control unit, change overperiodically "A - LINE" and "B - LINE" . Stern tube L.O. pump are periodically change overed . Thehandling of a forward sealing device is as usual .
Before carrying out the operation in next 5 .1 ^-5 .3 confirm that main shaft is in stop condition in allcases.
Note) Adjustment of the aft seal pressure at first installation and in case of replacing each parts isaccording to "INSTALLATION MANUAL" .
5.1 PREPARATION AND CONFIRMATION BEFORE USE1) Supply oil to stern tube and #2-#3 L.O. circulation line .1 ! Confirm that respective valves V1 5,V1 7,V21,V22,V24,V25,V27,V28,V29,V32,V57,V58 and V107 areopen .
(2) Confirm that respective valves V1 8,V1 9,V30,V34,V50,V52 and V56 are closed .(3) Close V17, open V18 and supply L .O. into the L .O. tank unit by L .O . supply pump . Next, push the
automatic closing valves at the upper and lower parts of the oil level gauge of the L .O. tank unit forconfirmation of oil level. When oil level in the level gauge rising, open V17 .
(4) When the oil level in the L .O. tank unit has reached the position about between high and low level,close V18 .
(5) When air in oil in the L.O. circulating line is nearly disappeared, close V21 .2) Confirm the condition of the valves for the air control unit and the drain collection unit .1) Confirm that V1,B1,V6,V201 and VO on the air control unit are closed, and other valves (including V20on the top of the L.O. tank unit, and V31 in the vicinity of aft bulkhead .) are open .
2) Confirm that V100 and V103 are open, N1 is slightly open (Before shipment from our factory, it hasbeen adjusted to discharge air at a rate of 4 NL/min .), V101 is closed in the drain collection unit andV55 is closed .
3) Set respective changeover switch FV1 on the air control unit on "A - LINE" side .
5.2 METHOD OF USE(1) Open VO on the air source line slowly, and fill air into #1-#2 chamber .(2) Confirm that the indications of respective pressure gauges are starting .
In case of use "A- LINE" : G2, G3, G4, G9, G10, and G13In case of use "B - LINE": G2, G3, G5, G9, G10, and G13(When the which ever pressure gauges are not starting, please refer to confirmation method of troublesand abnormalities and the countermeasures .)
(3) Turn the knob of the flow controller FC1, and set the flow meter 01 around 35NL/min. (Usually, ithas been adjusted before shipment from our factory)
Note) If air venting from stern tube and piping is not sufficient, for a some time after operating, oil isreplaced with air and oil level is dropped to alarming in the L.O. tank unit . In this case oil to be filledaccording to the procedure of 6 .2-2) - b) .
(4) Confirm that respective valves V15 is open .
i5) Adjust the valve V32, and set the flow meter 03 120 ± 50 L/H, if necessary. With this, an aft sealand stern tube have become working condition . The pressure in respective chambers at the center of amain shaft can be determined as follows from the indicated values of pressure gauges G10,G13 and
others .
•
Sea water (MPa) : P,W = y, x (Da - Hs) x 0.0098 #1-#2 chamber (MPa) : P 12 = G10
#2-#3 chamber (MPa) : P,= P,,, + 0.015
•
Stern tube (MPa) : P,,, = G13+ (y, x H3 x 0.0098)
Where,
y s : specific gravity of sea water (1 .025)y 11 : specific gravity of oil (0.90)Da : draft of a ship (m)Hs : height from ship bottom to the center of a main shaft (m)
H3 : height from the center of a main shaft to G13 (m)
Accordingly, from these pressure values, the differential pressure on each seal ring can be calculated .
5.3 MEASURES UNDER REST CONDITIONIn the anQh_orage for a short period in_voyage . as far as an aft seal and stern tubeare in the usable
condition asmentioned in 5 .2. adjustment is not necessary at all .In the following cases, put an aft seal in rest condition by following the procedure shown respectively.
1) In case of dry docking(1) Switch off the alarm panel .(2) Close VO on the air source line and open B1 in the air control unit, after escape air, close B1,V9, V100and V103.
(3) Stop the stern tube L .O. pump, and open V21 on the top of the L.O. tank unit to escape the air. .At the time of the restoration, please bring an aft seal in the usable condition by the procedure
opposite to this .2) Following is disassembling procedure(4) Open the valve V19 and V52 to discharge the oil in stern tube and L .O. tank unit .(5) Open valve V56 and remove the plugs of at the top and bottom of intermediate ring to discharge the
oil between #2 to #3 chamber.(6) With this, an aft seal casing has become the condition of disassembling .
At the time of the restoration, please bring an aft seal in the usable condition by the procedureopposite to this .
3) In case of stopping a shaft for a long period on the sea (for example, laying up and others)(1) Switch off the alarm panel .(2) Close VO on the air source line and open B1 in the air control unit after escape air, close B1, V9, V100
and V103 .(3) Stop the stern tube L.O. pump, escape air pressure by opening V21 at L .O. tank unit .
5
~4 ) Close the valves V32 and V58 in the vicinity of the aft bulkhead .
5 ) Close the valve V15 and V17 in the vicinity of the L .O. tank unit .
In case of using again, please bring a system in the usable condition by the procedure opposite to
this .
Note) 1 . It possible to supply electric power and air to this system, it is not necessary to stop the system .
2. In case that the system is remained stopping without air for long time, drain may come out
through the drain collection unit, when supplying air again . Before starting the system, drain out
operation through the valves V55 is recommended .
3. After stopping air supply to the system, there is a possibility of oil translation from fwd seal tank
to stern tube side, due to decreasing air pressure, in this case supply oil to fwd seal tank after air
supplying .In shallow draft condition (within 1 meter from shaft center to sea water line), operate some as 1) . In
this condition, do not rotate the shaft .
6. ROUTINE WORKS FOR CHECK UP AND OPERATION
6.1 ITEMS TO BE CHECKED UP AND CARRIED OUT AT THE TIME OF WATCH AFT SEAL AND
"AIRGUARD 3AS"SYSTEM1) Are the indications of below respective pressure gauges are starting ?
In case of use "A- LINE" : G2,G3,G4,G9,G10,G13
In case of use "B - LINE" : G2,G3,G5,G9,G 1 0,G1 3
2) Is the flow meter Q1 (Q2) on the air control unit indicating around 35NLJmin?
3) Is the element for MICRO-MIST SEPARATOR F1 normal condition?(Is indicator of the condition
detecting device on the MICRO-MIST SEPARATOR at the normal position?)4) Are respective filters F1 and F3 on the air control unit not filled up with drain ?
5) Is the oil level in the L.O. tank unit at the normal position?(Confirm it by pushing automatic closing valves at the upper and lower parts of the oil level gauge .)
Besides, is there not any change in the hue of oil'? (Has the hue not changed from yellow to reddish
brown or white ? )6) Is oil circulating in the L .O. circulation line?
7) Is there not any abnormal noise or heat generation in the L .O. circulating pump?
8) Is there not any clogging of a L.O. filter?9) Is the drain collection unit tank not filled up with drain? Besides, is collect not too frequent?
10) Is a little quantity of air release from needle valve N1 of drain collection unit?11) Is the exit temperature T1 not higher than 45 °C ?
FWD SEAL PRESSURE1) Is the pressure normal ?2) Is there not any change in the hue of oil ?
When the above conditions are not satisfied, refer to next 6 .2 or 7, the confirmation method of troubles
and abnormalities and the countermeasures .
G
6.2 ITEMS TO BE CARRIED OUT OCCASION1) Confirm the level of drain by sight glass at bottom part of MICRO-MIST SEPARATOR, and also
confirm filter condition by a checker on top of it .2) In case of increase or decrease, the oil level in the L.O. tank unit . (Confirm by referring to the
flowcharts in fig 1-4 .)a) Case of increase
By opening a valve V19, discharge oil in the tank until normal level, there after, close V19.b) Case of decrease(1) Open V 18 to supply L.O. to L .O . tank unit .(2) Close V18 after fill up to the proper oil level .
6.3 ITEMS TO BE CARRIED ON PERIODICALLY
1) Exchange of the element F3, F4 of regulators in the air control unitonce every four years . Exchange the element of the fitter by the following procedure .
(1) Switch the changeover switch FV1 on the air control unit .(2) By pushing the lever at the lower part of a bowl, lower the pressure, thereafter, take off the bowl,
exchange the element, and fix the bowl back .(3) Change back the switch FV1 .
2) Cleaning of a filter at drain collection unit inlet : once every year.Take off the plug of filter, take out the element and clean it, thereafter, insert it and attach the plugagain .
3)Maintenance of pneumatic equipment on the air control unit : once every four years .As for the pneumatic equipment used for the air control unit maintenance to be replaced once everyfour years at the time of periodical survey in a principle .
Note) Maintenance manual for pre filter (F1), drain fitter (F3,F4) are according to attached 1 .4) Cleaning of the L .O . filter
By shipyard standard .5) Battery in the flow meter (Q3)
The life of battery in the flow meter depends on the condition . When the battery has run down, aflickering alarm "BATT" appears on the register display . The battery should be replaced as soon aspossible .
6.4 ITEMS TO BE REPLACED PREODICALLY ITEMS SYMBOL
AIR CONTROL UNIT : FILTER ELEMENTFOR PREFILTER
F1FOR MICRO-MIST SEPARATOR
FILTER ELEMENT
F3FOR REGULATORFILTER ELEMENT
F4FOR REGULATORFLOW METER:BATTERY
Q3
QUANTITY
1
1
1
PERIOD
2 YEARS
4 YEARS
4 YEARS
2.5 YEARS
7.CONFIRMATION METHOD OF TROUBLES AND ABNORMALITIES AND COUNTERMEASURES
When an abnormality occurred during the use of 3AS, investigate into the cause and take the
countermeasures by referring to the flowcharts in Fig . 1-1 . 8. (As to the symbols used for flowcharts,
see attached 4) When the cause is unknown or the countermeasures are difficult, please make inquiry
to Japan Marine Technologies Ltd .When contacting with us, please submit attached-6 data sheet after fill up necessary data on it .
•
Conversion of #1 -#2 chamber system to ordinary oil pressed type from air control type .
For instance, no control air for long periods, etc ., 3AS seal can convertible to ordinary oil pressed type
by change over oil system from air control system in the #1 -#2 chamber .
The method of changeover and handling are shown as follows.
(1) Switch off the alarm panel .
(2) Close V100 at drain collection unit.
(3) Connect a temporary piping between valve V55 and V56 .
(4) Open B1 on the air control unit, close V4,V7,V8 and inlet cock of pressure switch (PS1) .
(5) Open valves V55 and V56 .6) Under the condition of stern tube L .O. pump running, supply L.O. to the #1 -#2 chamber while
supplying oil to L .O. tank unit from L.O. supply line.
(7) After confirmation of oil flow from B1, close B1, V9,V18,V55 and V56 .
(8) Close valve V58 .(9) Adjust the pressure of stern tube so as to give 0 .015- 0.03 MPa higher pressure than the sea water
pressure by adjusting of valve V15 .
(i0) With this, conversion from 3AS to oil pressed type has been done .
At the time of restoration(1) Open B1,V9,V15 and V58 .(2) Disconnect a temporary piping between valves V55 and V56, after that, open valve V55 to drain L.O .
out .i3) Close B1,V55 and open V100 and inlet cock of pressure switch (PS) .
(4) Open V7 and V8, close V4 on air control unit slowly.
(5) Switch on the alarm panel .
Further, L.O. in the #1-#2 chamber is collected to inboard by drain collection unit .
8
CPlease keep the flow meter QI or Q2 always around 35 NL'min by adjusting with the knobs of FCI or FC2 .
1)
Vx~ to "H'^ on Fig . 1-3
------------------------------------------------------------Moreover. even if troubles occur. the use ispossible b\ the following temporary piping .Trouble of FC I . FC2 and Q I . Q2 : connect \ 1 1and B 1 .As for the details . make inquiry to Japan MarineTechnologies Ltd .
Switching over of FV 1 .Replacement of FCI (or QI ) at theTime of port call .(Inform to Japan Marine TechnologiesLid .)
---------------------------------------------------------------
VInvestigation into causeof malfunction alarm .
------------------------
Condition detecting ~,device red gauge on Fl
reach top position .
NO j
V
G4 pressure. j
YES I
YES
VSwitching over of FV l .-----------------Replacement of R I at thetime of port call .(Inform to Japan MarineTechnologies Ltd .)
YES Exchange of the elementsof Fl filters .
Exchange of theelement .
O
Abnomiality pressure of air,
YESpressure .(PS2)(PS3)(Alarm)
Leakage from air pipebetween L.O . tank unitand air control unit .
YES
YES
Switching over of FV 1 .Replacement of ARl at thetime of port call .
NOInvestigate into L .O .
tank unit of airleakage .
YES 1
Repair malfunction ~.part .
NO
VX to "A" on Fig . l-8
Frequentdischarge of
drain .
J
Increase purging air quantity .Most of drain is ~' 60NL/minwater.
(Adjust FC I )I
(Trouble #1 seal ring )I
1Most of drain is
' Use by lowering the bias ooil .
AR1. (Trouble of #2 seal ring .Inform to Japan MarinTechnologies Ltd .)
X from "B on Fig. 1 -4
Execute pipe line flushing withpure water, and clean filter inthe drain collection unit .
Operate as it is
Is oilDischarged frequently(1 time / l min .)
X from "C" on Fig . 1-5
INormal condition .
r Adjust the opening oN1
' Exchange seal rings . i
Close V58Load to #3 seal ring .Return to normal biasAR1L
i
fori,
4)
j Abnormality in S/T L .O. tank unit level .(Alarm)
Supply oil to the tank up,to normal level .
It
X to "F" on Fig . 1-6
YES
X to "B" on Fig . 1-3
iInvestigation into other
causes. Investigation into thecause of malfunction alarm .
NO, I( Operate as it is . (Oil1, decreases naturall)) j
Extract oil from the tan l~down to normal--el .
Does
oil
leveNO
Operate as it is . (Oily,increase
~frequently?
increases naturally)
YES
Investigate into other cause .Investigate into the cause of
`
Iinflow.
>J
X to "C" on Fig . 1-3
, ES
'Was the bias ofContinue operation as itAR1 lowered of taking
`is .countermeasures according to
3) .
NO
YES
Raise the bias of ARI to thepressure at which air does notmix. (Inform to Japan Marine i
Investigate into the cause of vibrationTechnologies Ltd.)J
` and remove it .
Switching over of FV F,.G3 >G2 on the NO replacement of ARI at the
air control unit .
/
time of port call .
6)
lAbnormality of oil level inforward seal tank . (Alarm)
Supply oil to forward seat
YEStank up to normal level .
II
NO
Adjustment of the height of forward sealtank - lower.(Trouble of #5 seal ring )
,,,,J,"Operate as it is .(Oil decreased naturally)
J
Decrease ofoil level .
Investigate
into
othercauseInvestigate into the causeof malfunction alarm
X from "F - on Fig. 1-4
NO
YES
IfExchange seal rings at proper
Adjustment of the height of forward sealtime. (Works inside a ship)
7 tank -increase .--------------------------------- ------(Trouble of #4 seal ring)
I NO
Operate as it is .(Oil increased naturally)
i
Oil does not circulate in
NO
1\L.O . circulation line . l
Abnormality of L.O .circulating pump .(working)
Raise the discharge pressureof P1 till circulation occurs .(Adjust a relief valve)
X from "G" on Fig . 1-8
I
Change over
YESPP,
from workingto spare .
NO
By raising the bias of ARI attainP23-P 12>0.049MPa
(Inform to Japan Marine Technologies Ltd .)I
Operate as it is .Repair or replace at an early time(Inform to Japan Marine Technologies Ltd .)
Normal conditionof use .Repair of workingpump .
i
VReplace AR 1 at the time ofport call .(Inform to Japan MarineTechnologies Ltd . j
8.WORLD-WIDE SERVICE NETWORKOur service network is as bellow . Please refer to shipyard, no ., parts no ., and parts name on
attached3-1/2, 2/2 drawings, when ordered .
•
Europe, The Middle and Near East, African∎ Wartsila Propulsion Netherlands .(NETHERLANDS)TEL 31-4163-88299FAX 31-4163-74853
•
North and South America• Wartsila Lips Inc .TEL 847-808-9240FAX 847-808-9295
•
Asia and Australia•
Japan Marine Technologies Ltd(JAPAN)
•
Head office (TOKYO)TEL (03)5442-2211FAX (03)5442-2260TELEX 232-4593 (CHUWAC J)
•
JMT Korean office (PUSAN)TEL 462-2666FAX 462-2667
•
Chuwac Engineering Pte . Ltd .(JMT's Subsidiary in SINGAPORE)TEL 65-8989-125FAX 65-8989-151
1 7
OMMENDED 1 .0 . FOR STERN TUBE BEARING AND SEAL
In selecting t . .U, for stem tube bearing and seals, it is necessary to avoid products that have
able effects on stern tube seal rings (made of either ni .tnile or tluuric rub,ber) . F-or use with Japan Marine
joyless stern tube bearing and seals, we recommend the products listed oil attached 2, as they have
sled and proven satisfactory . Upon request, similar tests are conducted on products other than those
T's standard fur L .U . viscosity is horn 300 to 600 SUS at 100 F(37 .8 `C ) . In case of emergency,
L.O . of preferably the same type as that for' regular use, with a higher' viscosity . However, do not use
er a long period .
MAIN I ENANCE FOR MICRO--MIST SEPARATOR
IU REPLACE ELL_MENF>lose V4 and Vb, open V6 in the air control unit .
scare pressure completely in the body with loose the drain cock for low part of micro -- moist
Make pressure U MPa)
011 !Please take care when louse the drain cock, because taking pressure in the body .
enwve four hexagon bucket head bolt .
eplacc element, gasket and O- - ring .lighten h exagorn socket head bolt for assembling of the micro-mist separator - .
Please reter to following)
Time replace the element : Elenment operates for 2 years .-
1 9
CONDITION DETECTING DEVICE
- O-RING(USED)
separator .
GASKET(USED)
431
4 Q
21 3
#1
I=364
#2
= 5 Zo
ru
Cue
c~
0 . R
0. 8
47
• 6
--4 I
#31
e
F3~:filt~~~
TOP
CENTER OF0 DIM
CUSTOMER
xm4m s
L -1L 1 i74+iCENTER OFSEAL RING
MITSUBISHI HEAVY INDUSTRIES LTD .
WEAR DOWN GAUGE
VBIOF49A'
#2^-#3MiH31.(A)DRAINPIPINGFORBETWEEN#1^#2 (OUTLET#1-#2MFLM ba
NO,
1246/7/8/9
Japan Marine Technologies Ltd.TITLESIZE
STERN TUBE SEAL AIRGUARD 3ASR1 060t-)Lzt)JL- F3ASR9 (AFT)
MA, L DATE
JUN. 1' 011
0 o I'
NOTE) 1 . THE CENTER OF CASING AND SEAL RING IS CONCENTRIC .BUT THE CENTER OF 0 DIM SHOULD BE ECCENTRIC
® 1 . 2 LTOWARDS TOP.2. AT CONDUCTING LEAKAGE TEST, COMPLETELY REMOVETHE AIR IN THE SPACE BETWEEN THE NOS.#2-#3 SEAL RINGS .
3. DO NOT FILL THE LUBRICATE OIL INTO THE AIR CHAMBER OFTHE SPACE THE NOS.#I-'#2 SEAL RINGS .
4. ITEM 18. 20 . 30. 71 AND 72 TO BE LOCKED USING WIRE5. AFTER INSTALLATION, ITEM 29/75 AND 31/76 AND 43 SHOULD
BE TAKEN OFF AND KEEP IN THE SPARE PARTS & TOOL BOX.6. REMOVE THE GUM-TAPES. WHICH ARE COVERING AIR-PURGEDHOLES. OF THE SEAL-COVER.
@L, aQ+fi711 1 . 21 mmTOP)~4011f%~l,tl ~a
2. J-7T~h o; #2~#3
k~3. #1-#2WjMZ*i4AL#ttiL .4 . 5918. 2 0 . 3 0 . 71 . 7 2Z-f1 -WJIbW:. L5 . --AIRM =2 9/7 5 J31/7 6. 4 3Ii LTi
DIRro C .6 . 7~d - Ii
i-1Liy1- ;ITEM&) ~ ~~3iJhT-T
L.
1
CLASS : ABSnrn . 1 rr.m /, PIT I n ERV KOBAYASHI
AT7ACPfD
DETAIL OF STOPPER FOR DETAIL OF HOLES TO FEED OIL/AIRWRARDOWN GAUGE&DRAIN BETWEEN #1^'#2 & #2"#37~9' 7%i~--~#1~#23t(I#2 #311~A~
IN WATER SURVEY
2NDREV
DEC . C 3' C 1KOBAYASH ~
1
DRAWNKOBAYASHI
NECKED997kg I Y . T.SUJIHASH ;
SCALE
_IAPPROVED
G= 0
2
ab 63
#4
1
76
10
ae!
ab, 2
3013
48
UI20
OILOUTLET 5K-25A TOP
46
AIR VENT
OIL DRAIN
_AJF•L/i OIL INLET 5K- 25A, -
B0TT :IM
VIEW
j
NOTE)1.THE CENTER OF CASING AND SEAL RING IS CONCENTRIC.AA\
BUT THE CENTER OF IDIM . SHOULD BE ECCENTRIC ONLY0.71mm TOWARD TOP.
2 . AFTER INSTALLATION, ITEM25/75 AND 23 SHOULD BE TAKEN OFF AND KEEP
IN THE SPARE PARTS & TOOL BOX .
1 . 7-ri79+i t~-A'U i'J4+i L1#e~i 3 ~L ff9
lY 0. 71 mm T 0 P
$i: LtL 13.
2. i-)L
112 5/7 5W2 31IWLTT~L
t. MASS :
A7ACHFu
MASSabt. 890kg
SC E 1 /
MITSUBISHI HEAVY INDUSTRIES LTD .
ABS IST~ SEP.33REV, KOBAYASHI
REQ : ISET/ ISHIP ; . .,
I
CUSTOMER Na
1246/7/8/9
Japan MarineTechnologles Ltd .TITLE STERN TUBE SEAL STERNGUARD WARKIIR5 ZE
1060 >-)L
.Z9
F'?-1IIR (FWD)MAT L
wN KOBAYASH ICHECKED
Y. TSUJIRASHIAPoROVE
DATE
IJUN . 01' 01
N
FOR
_f1
0
FLUSHINGPROCEDURE FOR AIR SUPPLY AND DRAIN LINEOF AIRGUARD 3AS
procedure is used for protection and repair of air supply and drain piping line choking .
ENTIONing is executed ballast condition (air pressure in #1 and #2 seal chamber is low) and during shaft stopping
on. At this time, G 10 pressure must be 0 .029MPa and over, and the differential pressure of #2 S/R bewance .
clean water only .
ute this flushing about once from 1 month to 2 month interval .
.not touch any valves and/or equipment except below mentioned .mber plates are attached on valves and equipment for indication .)
CEDUREa coupler (prepared by JMT) on flushing water supply hose (prepared by ship crew), and fix it using bandare by JMT). (See FIG . I )
sect the above mentioned hose with pipe flushing port in air control unit. (See FIG . I )firm the flushing water pressure is higher than G10 .n V201 for air control unit, after confirmation of closing of N4 . (See FIG . I III)
Front view of AIR CONTROL UNIT
Fi
I
26
WATER SUPPLY HOSE
X111 SOME410010
2
pen the valve of 11 us ping wader source .nerease of opening ofN-1 needle valve gradually and keep a float in flow meter to be scale 2 from
(Flushing water quantity is about 1liniin at scale 2) After one minute flushing, close V20 I top water supply .nfirm (12 pressure to he steady before and after water supply condition .ushing water is discharged through drain collection unit . (See FI(-', . II)nipletely discharged the flushing water, open V201 to supply flushing water again .peat this procedure 2 or 3 times)
t8connect flushing water supply hose, after confirmation of V20I closing .ose the valve at drain line, d16-assembly drain pot for cleaning .fter cleaning, restore drain collection unit and open the valve at drain line .
aloe numbers are referred to attached Figif . III some case, valve and gauge numbers areiferent horn I"igf . Should you have any question to this, please' connect us .
Fig . II DRAIN COLLECTION UNIT
2 7
M RIIRI
IIRI
V55J
TO DRAIN TANK
A-I INF
?V9
Vii1
8-Uw
-= 5K I 15A
FLUSHING
TO L .O. TANK UNIT
TO PRESS. GAUGE G10
D, IB C I I
5K-15A
IFIG.N
J
0 0
MOW
21.asO0,
1=364
® 152
H=3
70
#3
doOcom-a I
N'9-
Nm
O
OO
I
INL
24-35DRILL
'ma 997k
TOP
1
WEAR DOWN GAUGE
OIL PIPING FOR BETWEEN
-0010c
AIR PIPING FOR BETWEEN
20-28DRILL
DRAIN PIPING FOR BETWEEN
#1#2 (OUTLET)
WEAR DOWN GAUGE
INOTE) I. THE CENTER OF CASING AND SEAL RING IS CONCENTRIC .
BOTTQMBUT THE CENTER OF 0 DIM SHOULD BE ECCENTRIC
o
VIEW A"® ® 1. 21mm TOWARDS TOP.
2. AT CONDUCTING LEAKAGE TEST, COMPLETELY REMOVETHE AIR IN THE SPACE BETWEEN THE NOS.#2-'#3 SEAL RINGS.
3. DO NOT FILL THE LUBRICATE OIL INTO THE AIR CHAMBER OFTHE SPACE THE NOS. #I-#2 SEAL RINGS. MITSUBISHI HEAVY INDUSTRIES LTD.
4. ITEM 18.20.30.71 AND 72 TO BE LOCKED USING WIRE.
CUSTOMER NQ5. AFTER INSTALLATION. ITEM 29/75 AND 31/76 AND 43 SHOULD
BE TAKEN OFF AND_ KEEP IN THE SPARE PARTS & TOOL BOX ~`1 6/7/8Z 4>'
6.REMOVE THE GUM-TAPES WHICH ARE COVERING AIR-PURGEDHOLES OF THE SEAL-COVER.
DETAIL OF HOLES TO FEED OIL/AIR
Japan MarlneTechnologles Ltd .A A I
4±>-VJ~F~i.~ti#w~LPL,l
2 1 . 2I mmTOPm:.
&DRAIN BETWEEN #1-#2 & #2 #3gym,&.
DETAIL OF STOPPER FOR #h#2&(f#2#361TITLE STERN TUBE SEAL AIRGUARD 3AS3. #1
_
2. #I-N h#2W
•atX02('.#2~#3C
ISO
b
r7WEARDON
~
3RD JUL.A
SIZE1060
J-)
I- - 3AS 0- (AFT)3AL t~t,
KOBAY SHI 04.018. 20. 30. 71, 72U',7
)ibmoZ .
REVIN WATER SURVEY /~
5. S-A4
.029/75AU31/76 . 431ii(~L'tiiS6.77TtArvMi-Po~YI- (ITEM6) ~'~` T` CLASS : ABS IST SEP. 03' 01
2ND DEC. 03' 0}1.i 3EV KJBAYASH
REV KOBA ASHREQ : 1SET/1SHIPmJllllA L TA rA I.
A
76OIL OUTLET 5K-25A TOP
VI
S
OIL DRAIN
Ar~FL%
OIL INLET 5K-25AOBOTTOM
ykp
16
a0
I
1")N
.!)N-a
76
0O1-
d
abt.63
#4
~-
EU
®~ ~ 1
Gm
m~l mm
#5
230
C
mm m
120N
a
A45
H=3 r
~./'„ ~1.,
S=330 3
Q=350
MITSUBISHI HEAVY INDUSTRIES LTD.
N
m
d
y O
U 3
dA
N3
NOTE)1. THE CENTER OF CASING AND SEAL RING IS CONCENTRIC.A
BUT THE CENTER OF ODIM. SHOULD BE ECCENTRIC ONLY 0.71ma TOWARD TOP .2. AFTER INSTALLATION, ITEM25/75 AND 23 SHOULD BE TAKEN OFF AND KEEP
IN THE SPARE PARTS & TOOL BOX.A
1. > +i i~JW) pig uTg6b. *1^
iii0.71ma T0PlAz$i LTt4.
2. °r-J13fMM 02 5/7 5W2 31itk4bLT~
CLASS : A B S
REQ : 1SET/ 1SHIP
CUSTOMER
NO.
mzm IR
MAT I.
"" KOBAYASHI1ST SEP. 03' 01
aMASS
abt. 890kgCHECRE
Y. TSUJ IHASHIREV KOBAYASHI4 --, A ~.r+ SCALE 1/3
1246/7/8/9
Japan MarineTechnologies Ltd .
TITLE STERN TUBE SEAL STERNGUARD MARKIIRSIZE1060
>-)L
J~h'
IIR (FWD)
JUN. 01' 0 1 I
'P- K- TAB URA
um NO MK II R-F 10 6 - 0 0 0 9 a
CONTACT AC 250V 5ACAPACITY
125V 10ADC 100V IA
24V 5A
PLAN OF ITEM 7CIRCUIT
NORMAL :ON
OFF :
R D
ON
PNBSS SW170i
BLACK
q)
AUTOMATIC AIR CONTROL
UNIT FOR AFT SEAL & S/T
l~q..r.Ire~xrE ~.LA
a
NP2
NP5FLOW CONTROLLER
FCI (A-LINK)FC2 (8-LINE)
NP3
NP4
ITEM t89MIT' L
DBSCtlITI01
00 E ESTALES USED
IOIIIIlSPAIN
7-RI-ILA54a
2
1
3
1
4
2
5
1
8
2
1
1
2
122
13
G2 AFT SEAL PRESS.
G3 L. 0. TANK PRESS.
1
JIS F880) 15c
2 (ELEMENT ONLY)
l (ELEMENT ONLY) MICRO MIST SEPARATORFlv f90;xFti~ 9
FLOW CONTROLLERFC1.FC2
7o-3iFO-7-
0 .4MPaPRESSURE GAUGEG2
ED*0.4MPaPRESSURE GAUGE
G3FEW
SHUTTLE VALVE
itiI'MP
MILDSTEEL FRAME
SS40044WATER WASHING UNIT
FLOW METER7D-Y-9-
Q1,
CHANGE OVER SWITCHFVI
4ItUP
PRESSURE SWITCH
47REGULATOR (WITH FILTER)
L4 L-9- (7+A9-6
PSI
R1 . R2
~YNIAIR RELAYx7-
'1l_-COUPLER
CHANGE OVER SW. FVI
A-LINE
B -LINE
NP6
NP7
AIR RELAY
ARI (A-LINE)
NP8
AIR RELAY
AR2 (B-LINE)
CUSTOMER
N0 .
IR
1246/7/8/9
SI . S2. S3
(V201. Q4 . N4)
AR1 . AR2
FLOW INDICATORQI(A-LINE)Q2 (E-LINE)
NOTE :1 . THE AIR CIRCUIT DIAGRAM OF THIS UNIT IS SHOWN ON DRAWING Z-B1-14854a
=7ILMZ-B1- 14854a NND1LTFtL .
2. PAINT MUNSELL 7. 5BG-7/2
3. TUBE & FITTING COPPER TUBE (#8)& STEEL/COPPER ALLOY
a 7Q! t ;a-A*
MITSUBISHI HEAVY INDUSTRIES LTD .
Japan MarineTechnologies Ltd .TITLE
AIR CONTROL UNIT
MI-1:7 F ONYAT L
DRAWNKOBAYASH I DATE
MAY.0 4' 01
E->
sees
a a
O©
Rc1/4
DRAIN COLLECTION U T(FOR AFT SEAL)
O SCALI'I'-ADT. 4NL/.1∎ppNuY.1d..Mdrla
1hO.D.#8 Cut ;
TO PRESS.GAUGE UNIT'
E-m
ITEM
1
2
3
4
5
6
7
8
9
10
11
1011115
2
1
1
3
1
1
1
1
1
TITLE
RIO.SPARE MAT L
WILD STEEL
SS400
STAINLESS STEEL
SCS13
STAINLESS STEEL
SUS304
BRONZE
BCMILD STEEL
SS400
ACRYLIC RESINS
BRASS
BiBF2
STAINLESS STEEL
SCS13
MILD STEEL
SS406
BILL or MAT L
STAINLESS STEEL
SUS316
PAINT
MUNSELL N- 9.0
MITSUBISHI HEAVY INDUSTRIES LTD.
CUSTOMER
1
DRAWNKOBAYASH I
FRAME71i-1
VALVE
IR51 l0E-IRA UG-3/0FLANGE JOINT
DESCRIPTION
7iii'M
5K-15A
FILTER 00 MESH
740- 80)712 YS-04
U BOLT
U 4;1bF
NAME PLATE
a
BITS JOINT
WAW IC0-PTI/4-BGATE VALVE
410 10K-15A US-1/2
DRAIN DISCHARGE UNIT
F11:1m silo-4cSTOPPER
METERING VALVE
itZOMJId SS-4MA
DRAIN COLLECTION UNIT
FD%J1/9Y3%1=7FDATEMAY. 04' 01
NO
1246/7/8/9
4 Japan Marine Technologies Ltd .
VII?
rPRESS. GAUGE_
I BOARD
i
G13 G10
C- m0 0
PRESS. GAUGE BOARD TO BEINSTALLED NEAR ABH.
n an
A15A SUS PIPE
eM
.v
I
I
I
ALARM TO CONTROL ROOM
DELAYEDRANGED
1
BY YARD
V50
nn
25A
A
(120L/H t50)
AI
I
IFORREFERENCE
.Y
G13
0. It #8 Cut
AO_YIITnjCR
E OYU
IV52
IV56 V55*A
TO DRAIN TANK
E _-_L011 PRES~Q O_MPa ALARIAIR CONTROL UNIT
HIGH i LOW LEVEL PRESS. SWITCHF ~ I PS I
FLOW CONTROLLER
REGULA
N FILTER
HIGH i L9 PRESS
,
G2
r4~ ~I
IF _-_ HICHELOLEVEL _
I
g x
FCI 1
RIF3fA-LINE
(
INLET PRESS.0. 4-0 . 7MPa
I
V5wA%T
V4
.v
G
.v
65A
A40A
V3 NEEDLE VALVE
FLOW METER
WITH LOCKU
V56
V57
V34
N 25Ac
AIR D4 4
i I
F1
110K-15A
'
B-LINE
jg
'
AFC2
Y
I'
`
T
G3
BYJMTl ocvl
II B1f
I
V9V201 4 N4
vioI
04
5K -5A
-
PIPE FLUSHING
5Kr~5A
A
A
BY YARD
FL O. PULP UN I T
,~,
-1
I
PUMPn (IQEMESIO
I
V24
P1
F -'TI1 V22 ,
A
A40A
V2
OU I
V30
AUTOMATIC CHANGE OVERSYSTEM FOR PUMP
K-
COLLECTION UNITBY JUT
5K-15
TITLESIZE
MITSUBISHI HEAVY INDUSTRIES LTD.
Japan MarineTechnologies Ltd.
A
FROM L.0. SUPPLY LINE
CUSTOMER
DRAWKOBAYASHI
OntCEDY.TSUJIHASHI
APPROVED
it's F3ASR OREMDATEMAY. 04' 01
Na
1246/7/8/9
PIPING DIAGRAM FOR AIRGUARD 3ASR
W. NO. Z-A1-14854a
