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Figure 95 : The Time of Waterbag Lowering
f. Take out water in the water bag.
Figure 96 : Take Out Water 3.19.2 Result and Conclusion of Survey
Design Load : 8387 kg or 8,387 ton
Result of Load Test : 4,2 ton x 2 = 8,4 ton
Time : 5,1 second
Conclusion : Acceptable
3.20 HOSE TEST 3.20.1 Reference
Based on ABS Rules 3-7-15.7 1. Definition and Purpose : Hose Testing is one of the leak testing for to verify and
checked tightness of the joint.
2. Method : by a jet of water 3. Details of Testing : 1 Pressure value is 2 bar 2 kgfcm
2
, 30 psi during test. The nozzle is to have minumum inside diameter 0f 12 mm 0.5 in and is to be located at a distance to
the joint not exceeding 1,5 m 5ft. 3 Hose Testing must to be applied before painting and final coating.
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3.20.2 Procedure of Testing
1. Install the all equipment test. 2. Provide the water pressure in accordance with ABS Rules see at pressure gauge
Figure 97 : Presseure Value is 2 bar
3. Spray the water to every boundary SIM joint.
Figure 98 : Hose Test On Wheelhouse Window and Hatchway
4. Checked for leaks on the SIM Joint. 5.
For to ensure the real leak, we must to spray water again to boundary SIM joint welding
the suspected leak and checked again.
3.20.3 Result and Conclusion of Survey
1. Data During The Test Pressure value
= 0,2 bar Nozzle inside diameter
= 12 mm Distance
= 0,5 m
The all above data is comply to ABS Rules. 2. During hose test on wheelhouse window and hatchway, not found leak on SIM Joint.
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Figure 99 : The Result of Hose Test 3.21 BOLLARD PULL TEST
3.21.1 Defenition
A bollard pull is a test or rather the results returned by tests used to establish the maximum pulling force working watercraft can exert. Mooring bollards are often used as an
anchor points which is where the tests get their name. When maximum thrust is applied to the boats engines, the amount of pulling power exerted on the cable is read off the gauge.
3.21.2 Reference Document Based on ABS Rules Part 5 Chapter 3 Anchor Handling and Towing Appendix 1
Guadelines for Static Bollard Pull Test Procedure 3.21.3 Equipments
a 1 one set Calibrated Load Cell Dynamometer : 1 Load cell : capacity 200 ton
2 Telemetry indicator : Serial No. 0287 capacity 200 ton, non wireless handheld b Steel wire rope
c 2 x 150 ton shackles d 1 x 15 ton shacke
e Heavy equipments : forklift and loader f Rigging for handling load cell shackles to wire rope on wharf side
g Radio handy talkie, a two-way voice communication system. h Bollard, fixed point ashore with SWL 300 ton
\
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Figure 100 : Telemetry Indicator, Bollard, Load Cell, Bow Bolt Nut Shackle, Steel Wire Rope and Forklift
3.21.3 Static Bollard Pull Test Requirement a.
Test Condition Requirements
1 Owner Requirements : a Prior to conducting the test, the owner has submitted a written correspondance :
Requesting ABS attendance Starting the propeller are approved by ABS for vessel
Starting the owner is satisfied with the structural adequency of the vessel’s towing hawser, towing winch, two bitts or towing arrangement
b The owner ha s provided a copy of the stability letter stating the vessel’s towing
capability any towing restrictions. 2 Vessel Data :
a Main engine : Owner has verified all main engines are not adjusted to operated in the overload
condition during the test. Over speed setting for the main engines verified by the Surveyor prior
commencing the bolard pull test.
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3 EnvironmentCondition :
a The depth of water under the keel in testing area should be at least twice the vessel’s draft amidship.
b The distance from the stern of the towing vessel to the bollard fixed point should be at least two ship length LOA
c Wind speed should be 10 mph 1 knot = 1,150 mph or less, or such, that it does not
measurably affect the bollard pull result.
d If current exceeds 1 knot, its effect is to be substacted from the bollard pull by
either : Direct measurement of drag effect pulling direction downstream and reduction
of bollard pull accordingly; or Conducting pull test both upstream and downstream and averaging the result
e The dynamometer load cell is : Calibrated and suitable for use in horizontal position. It should be fitted with
swivels or should be torque insensitive, such as a hydraulic dynamometer. It should be easily read from a safe location or a remote readout should be
provided. The dynamometer should be located at the ashore end of the tow hawser.
f The towing vessel should be on an even keel or trimmed to the intended operating
condition in tow.
g The draft of the towing vessel should be equal to or deeper than ballast condition, but need not be down to the summer load line mark.
4 Duration of Bollard Pull : The static Bollard Pull should be computed as the average of evenly spaced load
cell recordings taken over a sustained pull interval of three to five minutes.
5 Miscellaneous Item :
During the test, one surveyor is located in the vessels engine room and one surveyor
is located at the shore station.
b. Tets Preparation
