chapter 8a

13

Click here to load reader

Upload: maninder-singh-khasria

Post on 27-Nov-2014

463 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Chapter 8a

Frank Mohn Services AS No. 17 - 1997

'-Service Bulletin Keep you up to date with the latest news from Frank Mohn ServicesAS

FRAMO Submerged Cargo Pump

iiFRAMO

"-'Planned Maintenance System

~

"--'

tI An efficient planned maintenancesystem on board will keep yourcargo pumping system in propercondition.

tI The maintenance systemmustclearlyhighlight job specifications - and defineintervals as well as responsibilities.

tI The planned maintenance systemforFRAMO cargo pumping system is animportant part of the Ship's QualityAssurance System, ISO 9002.

tI A properly maintained systemwillreduce unnecessary problems andincrease the ship's turnover.

Page 2: Chapter 8a

-FRAMO J

GeneralFor all ships trading world-wide, it will in the near future be required to have an approvedQuality Assurance System - ISO 9002 on board.

An important part of your ship's Q-A System will be a Planned Maintenance System for all theequipment on board, i.e. job specifications, carried out by, approved by, inspection intervalsas well as a separate record book for logging of results.

There is no doubt that a properly maintained system will reduce operation costs and obtain asafe and sound ship.

Planned Maintenance System for FRAMO Cargo Pumping System ;

Approximately 1.200 ships are today equipped with FRAMO Cargo PumpingSystem.Someofthem have already an approved Quality AssuranceSystemon board, but the majority will haveto develop and implement a Q-A Systemin the near future.

To give these «FRAMO Ships» some guidance, we have in this Service Bulletin proposed a ba-sic Planned Maintenance System on the next pages. The equipment on board, as well as thetype of ship and trade may differ from ship to ship - our proposal is therefore to be understoodas guidance only.

Explanation to the following basic Planned Maintenance System

«Equipment»: is the main components in your specific FRAMO CargoPumping System.

..-J

«Job Specifications»: specifies the various activities.Note! A visual inspection of the cargo pump's top platemeans visual control of local control valve, purging valve,ball valve, pressure gauge, et cetera. Repair whennecessary.

«Drawing No.» : refer to the drawing in the FRAMO Service Manual.

«Maintenance instruction»: refer to FRAMO Service Manual.

«Carried out by/Approved by»: can vary from ship to ship, but it is a must that theresponsibilities are clearly defined.

«Inspection intervals»: can vary according to type of ship and trade and yourown experience.

v

Page 3: Chapter 8a

~

Proposed Planned Mfor FRAMOCargo

Ref. Ship'sQA-S1

~Job

Specification

EI.motor/

I

Hydr.P.T.O. gear oilbearings - tankclutch levelcontrol

Drawing No.Maintenance

instruction No.Purging

routine

643-4-5

1000-010-4

Carried out by Pump man Pump man Pump man Pump man Eng. Eng. Eng. Pump

man

Chief

Eng.

X

NB! The above Maintenance System is for guidance only. The equipment on ealconsulted to work out a specific maintenance plan for your ship - or you heexperience. Please don't forget auxiliary equipment such as: Ballast Pump!

~

Approved by IChief Chief Chief IChief

IChief Eng. I Chief Eng. I Chief Eng.

Officer Officer Officer Officer

Date InspectionISee

Radial clearanceintervals purging impeller/wearing

routine 0,3-1,5 mm(max

When

H operated IX

I I I: Running I I Xhours based

Every 3nJ

Imonth

I

X

I I I 1=Annually X I X

Condition Xbased

Page 4: Chapter 8a

'-'

aintenance SystemPumping Systemstem, ISO 9002

h "FRAMOShip" may be different from ship to ship. FRAMO can, however, beve to use the information in your FRAMO Service Manual together with your, Tank Washing Pumps, BowThruster Motor, etc.

)

~"</)~~

Hydr.oil

IHyde- 0;1 r'p ;"d;cato'ro;"

Pressure

Ala,m r'm on cool"r;' ventpo;n",

tank indicator, Auxiliary relief control check, tubes anodes 1:on end of ring line I '-'bottom Main filters' valve valves switches, 2:on filter box

drain system safety loop 3:on Cargo Pumpfilter box 4:on hydrotank

::)'I11lli"'TIlliM1Mllili::1400-068

643-4-678

Eng. Eng. Pump Pump Eng. Eng. Eng. Eng. Eng. Pump man

man man

Chief Eng.1 Chief En£lChief Chief Eng. Chief Chief Chief Eng. Chief Chief IChief Officer

Eng. Eng. Eng. Eng. Eng.When needed

--

XX I I I I I I I

r-

--I I I I I

'--'

I I I I

H XI n I I I I IX X X X X

X

Page 5: Chapter 8a

iIiFRAMO

Ten Rules to remember...1. Purge the cargo pump's cofferdam before and after discharge. Log and

evaluate the purging result. Take necessary action.

2. Never start any dismantling of the cargo pump before you have identified

the problem. Always pressure test the cargo pumps cofferdam to identifyany leak. Always remember to use the correct tools from the FRAMO toolbox.

3. Use only genuine FRAMO parts.

4. If you have any problem with capacity, stripping or parallel pumping,check the cargo pump's condition against the performance curve

5. During discharge: Regulate the hydraulic system pressure to approx.15 bar above the highest consumer - regulate cargo pump capacity byhydraulic pressure, not by throttling of cargo valve. l!

6. Avoid air in the hydraulic system. Deairate the system on a regular basis.

7. Keep the hydraulic system clean. Cleanliness is absolutely necessary.

8. Take a hydraulic oil sample, every 3rd month for particle counting (ISO4406). Every 12th month full analyze according to FRAMO standard1400.063.

9. Never mix the hydraulic oil with lub. oil.

10. Implement a planned maintenance system for the complete cargopumping system.

For further information please contact ourFRAMO Service Offices worldwide.

Page 6: Chapter 8a

No. 21 - 1999

'-' Frank Mohn Services AS

Service Bulletin Keep you up to date with the latest news from Frank Mohn Services AS

Planned Maintenance System - Updated Recommendations

iIiFRAMO

0 Hydraulic Filters - Changing Intervals

0 Reduced Water Content - Increased Life Time

0 Testing of Cargo Pumps

0 Complete Tool Box - Reduced Service Costs

'-'

~

'-'"

0 Spline Lubrication

'-"

Page 7: Chapter 8a

Dear Customer!

RECOMMENDATIONSTO REDUCEYOURMAINTENANCECOSTS J

With the implementation of the ISM-code, a planned maintenance program is required. In this respect we would like to

draw your attention to the part of the program concerning the FRAMO cargo pumping plant. Based on experience, new

technology and feedba~k from our customers, the maintenance recommendations have changed over time.

We recommend you to update your program according to this information.

Hydraulic Oil Filters - Change IntervalsIn the original instruction manuals you may find that thefilters have been recommended changed once a year,

even without any filter alarm. Today the filters are to be

changed based on condition only, either from a filteralarm due to high differential filter pressure or from the

analysis result of oil samples.

v

should no filter alarm occur and your hydraulic oil is in

good condition {cleanliness level better than ISO code16/12} the filters should not be changed.

We recommend that you draw a sample for particle

contamination analysis four times a year. In addition, a

full analysis should be carried out once a year. FRAMOcan offer assistance during oil sampling, monitoring and

trend analysis as well as providing advice of preventivemaintenance.

Reduced Water Content in Hydraulic Oil -Increased Lifetime

Previously the maximum allowed water content in the

hydraulic oil was 0,1 %. Experience has shown that a low

water content in the hydraulic oil improves lifetime of

hydraulic components as well as of the hydraulic oil itself.We have found that the maximum water content should

be below 0,05% or 500ppm.

~

Thewater contentshould normally be well below300ppm.

Any increase in water content must be investigated, thecause corrected and the water removed. To remove water

we may offer rental of purifier and / or special waterfilter. Note that this is only a temporary solution - the

cause of the water ingress must be located and repaired! --I

Page 8: Chapter 8a

'-'

~

'-'

'-'

Testing of Cargo Pumps

In the past we have recommended you to test run your cargo pumps against closed discharge valve, once or twice a

year. Such a test requires calibrated pressure gauges and there are several possibilities for error as well as the amount

of work involved. Provided no problems are experienced during discharge, parallel pumping or stripping, there is noneed for periodic testing of the cargo pumps.

The cargo pump test is useful when trouble shooting a specific pump.

Testing of cargo pumps is recommended in view of a planned docking.

Pre-docking tests are necessary to set up a

proper repair schedule to determine which

cargo pumps will need an overhaul.

Cargo pump testing is also carried out duringon board training courses.

This is to inform the crew of how to do the test

and learn to evaluate the results.

In view of above we kindly ask you to change

this activity from periodic to condition based in

your planned maintenance program.

Framo Tool Boxes - Use SpecialTools and Reduce YourService CostsExperience has shown that the originally supplied special tools contained in the FRAMO tool boxes are often lost or

damaged over the years. Doing maintenance on the cargo pumps without these tools may cause damage to the

pump as well as to the new parts, increasing your total costs. It is better to renew the contents of the tool box than

paying for damage during repair or even malfunction during the following discharge operation.

please include an annual check of the FRAMO tool box in your maintenance program.

Spline LubricationExperience indicates that inspection and lubrication of the spline connection between the hydraulic pumps and thePTO output shafts is neglected, causing abnormal wear on the spline. This is also the case on electric motors withspline connection.

It is very important to have a scheduled routine for control of this lubrication. We recommend that the oil on the

spline is changed every 800 running hours, or every six months, whichever comes first.

level control

If you need any further advices or assistance, please do not hesitate to contact us!

Page 9: Chapter 8a

"'---'

Evaluation Test

for FRAMO Cargo Pumps

\ '

Test ProcedureEach cargo pump to be tested against a closed discharge valve.

Hydr. System pressure to be at maximum.

Record hydr. pressure at control valve and cargo pressure at top cover

plate.

CorrectionsUllage and sp. gr. for the cargo.

Control of resultsCheck the recorded results against the actual pump curve.

""-'

Possible wear and tearIncreased wear ring clearance.

Control valve is not compensating.

Worn out hydro motor.

2)

Evaluation of resultsNormal cargo pressure - hydro pressure too high =

Increased wear ring clearance.

Cargo pressure too low - hydr. pressure too low =

Reduced speed - bad control valve - bad hydro motor

Cargo pressure too high - hydro pressure too high =

Overspeed caused by control valve

1)

3)

'--'

19. november 2002\S:\dokument\NO-13206

Page 10: Chapter 8a

PUMP T~ST - EVALUATION FORM

Ship name:Date:

All cargo pumps with cargo in tanks to be run against closed cargo valve.Expected cargo pressure in bar is: (mlc-ullage) x sp.gr. x 0,981

10

Hydr. pressure in bar: p (bar) x sp.gr.design sp.gr.

Operator:

Tank no. Sp.Gr. M ullage Pump type FCVI LIM Cargo Pressure Hydraulic Pressure System pressure:Recorded Expected Recorded Expected H.G.temp:

REMARKS

1 1,0 0 80-125 FCV 400/173 12,5 125

2 0,83 2 80-125 FCV 400/173 10,2 104

3 1,0 8 80-125 FCV 400/173 11,8 150

4 1,2 11 80-125 FCV 400/173 13,8 180

5 0,7 1 80-125 FCV 400/173 10,2 105

6 0,9 2 80-125 FCV 400/173 9,7 90

7 1,7 0 80-125 FCV 400/173 21,3 213

Page 11: Chapter 8a

( ( (PUMP TEST- EVALUATION FORM

(

Ship name:Date:

Allcargo pumps with cargo in tanks to be run against closed cargo valve.Expected cargo pressure in bar is: (mlc-ullage)x sp.gr. x 0,981

10Hydr.pressurein bar: p (bar)x sp.gr.

design sp.gr.Operator:

Tank no. Sp.Gr. M ullage Pump type FCVI LlM Cargo Pressure Hydraulic Pressure System pressure:Recorded Expected Recorded Expected H.G.temp:

REMARKS

Page 12: Chapter 8a

92

Performance Diagram for FRAMO Pump DrC'N1r.gr,o, 0169- 1295-4 '-.-/-Pump type: so 125-5 A Order no. :~./;7

.Imp. (mm) : 328. Construct : ~ (Driver : A2FM63 61 Relecsed:Ref"i.cr~

'No.t

(r;m)26.:3.

(kg/em3]1.00

(cSt)1.00

8

I 1-----/ r 8

I )--I

«)

r -- I 2:0 bar

/~--- - I I I "'"~ ~I~~

~ ~

-><;=.

01-.1-.

'-.-/

~

0g280«)Ec:.0

-8~

0

6 25 ~ 75 100 125

- ~~

(j'-

g"88~-

~181

~01

:1

a

-

, , , , , , , . , , ' , ,

200 ::01

t:~~~r[8

~ U1"

rI' , "I'" a

2~ 275Flow Q (mJ/llJ

~

I

~r

75

I

!, i ' , , , I

125 1501

175r-r-:- T , , I '2CO 225

,... !25

'I 'lCO

1 175 200 225 2 275Flow Q (m3/11)

I I I I

-'- -', , ,I "---/

.......

t' ,I

/2SJ bcr

I

, , , , , , , , ' " , , ,

Page 13: Chapter 8a

ffiFRAMO

Frank Mohn Services AS"--"

Evaluation Sheet

Course:

Place and date:

Company:

Occupation:

@ @ @1 2 3 4 5 6 7 8

"' '

1. Have this course been useful for your daily working situation?

2. How did you like the course outline?

3. Value of hands-on training?

4. Value of theoretical training?

5. Quality of main instructor?

6. Your opinion about the personal training manual?

7. Will it be useful to attend a similar training course in the future?

What did you like most about this training course?

What did you not like about this training course?

Further comments?'-"

Evaluation of Framo in general:@ @ @1 2 3 4 5 6 7 8

1. Your opinion about operation of the Framo system?

2. What about maintenance on the Framo system?

3. Quality of Framo service?

4. Spare parts availability?

5. Spare parts identification?

Comments in general?

'-'

C.ITEMPIEvaluat2.doc Page 1 of 1

I

I