Section: 11 CARGO OPERATIONS - Univan

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FLEET OPERATION MANUAL Date 01.01.2005
PORT OPERATIONS
Copyrights: Univan Ship Management Limited, Hong Kong. All rights reserved
Any unauthorized reproduction of this manual, in any form is prohibited
SECTION 11.5
After 20 degree angle, you may increase the lowering speed.
Check the rubber mats or plywood is kept below the edge of the ramp.
Allow the ramp to rest slowly on the wharf over the mat.
Slacken the main wire slightly.
Do not switch off the power supply to control panel after use.
11.5.2.2.2.2 Lowering of Adjustable height Side Ramp.
The height of the can be adjusted, as the base of side ramps can be moved in the vertical plane
on the ship side to about 2~4 different levels, corresponding to the deck or deck panel at that
level.
Now try to understand how we can lower these types of adjustable height side ramps.
Let us assume that side ramp main hinge is at deck no 5, and now we need to lower the side
ramp with increased hinge height. That means simultaneously we need to bring the main hinges
to no 6 or no. 6+ deck. This operation will be done in the following steps:
Check the stopper pin of hydraulic securing cleats has been disengaged.
Check for the height and clearance between the ramp and the wharf.
Tighten the main wires on the winch.
Turn the wheel and remove the manual pin.
Disengage the hydraulic securing cleats, and check the launching bar is in.
Start lowering the ramp by main winch very care fully up to an angle of 14.5 degree to the
vertical.
The push cylinder will automatically push the ramp out.
At the angle of 14.5 degrees, position stopper is unlocked.
Check the deck flaps are in at No. 5 deck.
Jigger winch up, to take the ramp to no 6 deck. Now the ramp angle will be about 26.5
degrees.
Position the main hinges with jigger winch to lock the position stopper at No 6 deck.
Slack the wire on jigger winch a little.
Now lower the main wire again.
Do not stop the ramps in the mid way of operations for long interval
Check the rubber mats or plywood is kept below the edge of the ramp.
Allow the ramp to rest slowly on the wharf over the mat.
Slacken the main wire slightly.
Do not switch off the power supply to control panel after use
11.5.2.3 Ramp hoisting operation.
Ramp hoisting operation also is similarly different for stern and side ramps, for the same reason
they are differently explained.
11.5.2.3.1 Hoisting and securing of stern ramp.
Remove the safety passage
Remove the deck flaps in
Ensure hydraulic safety pins and cleats in retracted condition.
Pick up the slack on the sub wire and on the main wire.
Heave on the main wire slowly.
Keep a check on the sub wire or else the lower ramp may hit any obstruction in its way,
at this stage you may have to tight sub wire at times.
Keep heaving the main wire up till the ramp is lifted up the wharf and clear.
Continue to heave till such time the ramp makes an angle of 65 degrees to the vertical.
Now slack on the sub wire till the time sub wire cylinder is completely out.