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R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 1 of 10
OVERVIEW The Load Handling System (LHS) and CTD Winch are two separate systems that have been integrated. Rather than discuss both systems individually, this Overview will cover the two systems together since both need to be operational to conduct a cast successfully. It should be noted that the reference to CTD is not to a specific winch but to the package and winch selected for the operation. The Load Handling System (LHS) aboard the Sikuliaq deploys and retrieves the CTD from the starboard side of the vessel. The LHS consists of a hydraulically actuated Boom, Trolley, and HPU system that can extend a package outboard from the Baltic Room. It is designed to lift 5.5 tons in the fully retracted
position and 2.9 tons fully extended. Power is provide by the HPU in the fwd winch room. The main operation station is in the Winch Control Room. (01-‐54-‐1) A manual control station for maintenance is located in the Baltic Room mounted on the forward bulkhead inboard to the door to the Wet Lab. Emergency stops are located at each control station & local controls on the winches (10 total). The Oceanographic winch is operated through the selected operator control
stations and Rapp Hydema’s Pentagon program. There is one system control program that runs all the winches. When the Pentagon program is running, the entire system is up and running. If the incorrect winch is selected and goes unnoticed, damage to equipment will result. This is part of the Pre-‐Launch Check sheet that has been provided at the end of this document. LHS and CTD operations are coordinated between the following locations: Winch Control Room, Bridge, Baltic Room, and Computer Lab. The Baltic Room can be manned by a Science Technician, Bosun, or a Science Team Leader. For this document, the Baltic Room person in charge will be referred to as the Science Tech. QUALIFICATION The crew member must pass the qualification process outlined in Sikuliaq’s SMM. GAR LHS & CTD operations are considered routine operations aboard Sikuliaq. Level of risk associated with routine operations is largely dependent on operation knowledge of equipment and attention to detail. For operations out of the ordinary, the Bosun and Chief Mate shall be consulted on a new GAR assessment. Deck position will be assigned and all persons will be briefed so that they understand their tasks. Safety procedures taking environmental conditions such as sea state, weather, ice conditions, darkness, and crew fatigue will be taken into account.
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 2 of 10
PRIOR TO USE Conduct Pre-‐Deployment Check List.
Pentagon Program Screen Shots of Startup and Pre-‐Launch:
Start Screen System Settings
Winch Settings Constant Tension % & Winch Max Torque % OPERATION Pre-‐LAUNCH: During freezing condition, the Baltic Door heater and HPU for the Baltic Door and LHS should be turned on prior to launch. The heater is on a 15 minute timer. During severe freezing conditions, the heater will need to be run through a number of cycles.
• Call the Bridge and inform the Mate that the Pre-‐Deployment Check List is complete and the Winch and Baltic Room are standing by to open the Baltic Door.
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 3 of 10
• After the Mate is on station, they will give permission to open the Baltic Room door. Leave the HPU running for launch.
• After the Baltic Door is open and the Baltic Room personnel are ready, request permission from the Bridge to commence the launch.
LAUNCH
• When given the go ahead from the Baltic Room, use the winch joystick to slowly haul in on the wire until just before the CTD touches the docking head.
• Activate Constant Tension in the winch Manual Override screen. The springs will compress until the percentage of tension is reached (watch for tension on the readout to increase). The LHS is now ready for maneuvering (LHS description toward end of document).
• Using the LHS joysticks while keeping a close eye on the Docking Head spring compression, first Trolley out until the Blue Line markers are aligned, and then extend out the boom all the way. The winch will follow and keep constant tension during this evolution.
• When fully extended, lower the arm approximately half way to the water (how much is a judgment call).
• Deselect Constant Tension and pay out the winch wire so that the package is submerged. Then raise and retract the boom to the Cast Position while slightly lowering the scientific package to keep it submerged.
• Raise the package to just below the surface and Reset Wire Length to zero and call the Computer Lab for instructions.
• Ensure that the Baltic Door net has been put up.
Constant Tension & Reset Length:
Manual Override Constant Tension
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 4 of 10
Reset Length (can also be reset in Operation Settings) MODES OF OPERATION DURING CAST -‐ PENTAGON SYSTEM: There are three modes to operate the winch in the Pentagon program during a cast: Manual, Auto Pay-‐Out and Auto Haul-‐In. Heave Compensation is under development.
Manual Mode:
• Depressing the joystick button once will activate the winch and lift the brake. Depressing the button a second time will activate the joystick.
• This is the only mode for operating inside the “Safety Distance”, which is nominally to 10 meters set length. The automatic modes cannot be used within this distance.
• If the Manual button is pressed while in an Automatic mode, the Pentagon program will ramp down the line-‐speed and stop the winch, returning to Manual Mode.
• Manual Mode can be used to control a winch from the Winch Booth, SCR, and Winch Room by using the joystick. For instance, the winch room can take control to operate the winch locally. Note that the Pentagon program must be started up first in either Winch Ctrl or SCR before using any of the joysticks.
• When paying out in Manual Mode, after passing the Safety Distance, Auto Pay Out Mode can be selected.
Auto Pay Out:
• Must be outside of the Safety Distance and inside of the Set Length. • Check Pay Out Speed in Operations Settings screen and Set Length in main op screen. • To start Auto Pay Out, press Payout in main Operations screen. The background color of the
button will turn green when active. • Auto Pay Out will be active until the wire out reaches the Set Length. • Auto Pay Out mode can be stopped anytime by pressing the Manual button, in the main
Operations screen. • When paying out in Auto Mode, an audible alarm will sound when auto payout begins, and
again when the wire length passes the Warning distance/speed ramp, which is nominally 5 meters before the set length is reached.
Auto Haul-‐In:
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 5 of 10
• Check Haul In speed in the Operations Settings screen. • Press Haul In button in main Operations screen. The program will prompt: “To Set Length” or
“Safety Distance” Select desired function. The button background color will become green when Haul In mode is activated. Note that “to set length” will not be selectable if the set length value is greater than the amount of wire out.
• The winch will haul in until the Set Length or Safety Distance is reached, whichever was selected. An audible alarm will sound when auto haul-‐in begins, and again when the wire length passes the Warning distance/speed ramp, which is nominally 5 meters before the set length or safety distance is reached.
• When the winch slows and stops at the Safety Distance or Set Length, the system switches to Manual Mode.
• Auto Haul In mode can be stopped anytime by pressing the Manual button, in the main Operations screen. To start Auto Haul In again, press Haul In.
Winch Modes of Operation:
Main Screen Operation Settings
RECOVERY: • Once the science package is just below the surface, confirm with the Computer Lab that they
have completed the cast and powered down the instruments. • The Baltic Room should be manned and ready and the net taken down. • When the Science Tech gives the ready signal, request permission from the Bridge to recover. • Activate the LHS HPU, extend out the boom and lower the LHS boom halfway to the water and
haul in on the winch until the package is just in contact with the docking head. • Select Constant Tension in the Manual Override screen of the Pentagon program. • Raise the boom arm, retract the boom extension, and trolley in to return the LHS to its stored
position inside the Baltic room. Pay special attention to the Docking Head’s spring compression and distance between the Trolley’s inboard sheave and the fixed sheave on the inboard bulkhead of the Baltic Room. The science tech will give hand signals during the trolley in.
• When the CTD is in position, communicate to the Baltic Room that you are taking Constant Tension off. Once off, lower the package to the deck being careful not to cause loose wraps on the winch drum. The science tech will give hand signals when paying out.
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 6 of 10
• Call the Bridge when the CTD is on deck. • Call the Bridge when the Baltic Door is closed, the CTD is secured, and it is safe for the ship to
get underway to the next station. • Only after the CTD is secured and a Science Tech is pulling on the wire should the operator pay-‐
out additional wire if need be. • Make sure the HPU for the LHS and Baltic door has been turned off. Stop the Pentagon program
by pressing Menu and then Stop System (do not press Shut Down!). Operation Notes:
• It is critical that the correct winch is selected before starting the operation. If the wrong winch is selected, the operation will result in damage to equipment or injury to people.
• Communicate each step over the squawk box so that all stations know what to expect. • The Winch Operators should be comfortable with the Pentagon’s screen menus and parameters
that pertain to CTD and LHS operations. • Being extended all the way out will keep the CTD away from the side of the ship in the event of a
roll. However, the Cast Position is the calculated measurement of the booms headblock that’s entered into the Pentagon’s motion reference unit for Heave Compensation. There is also less of a lever arm and therefore stress on the system.
• Watch the distance between the inboard LHS sheave and the fixed fairlead sheave when retracting the LHS trolley.
• Never depress the button on top of the winch control joystick when in Auto Mode. This will stop the winch abruptly.
• The Emergency Stops work for all winches and LHS controlled by the Pentagon system. There’s a total of 10 E-‐stop buttons on the same circuit.
• Emergency Stops should not be a substitute for Lock-‐out/Tag-‐out. They are for emergencies only.
• If sea state permits, after a cast has been completed, the Baltic Door may be left open. Safety lines should then be put up after the CTD has been landed on deck.
• Be familiar with the following screens information and function:
Gear Motor Cooling Status Page Brake Servo Pressure
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 7 of 10
Load Handling System Description:
1. Activate joystick by depressing the button once (1). 2. Docking Head Tilt in 3. Docking Head Tilt out 4. Spare 5. Spare 6. HPU Stop 7. HPU Start / Run 8. Priority Control 9. Emergency stop – Should not be left on for any length of time. 10. Cast – Indicates when Trolley and Boom are in position (narrow tolerance) 11. Docking head dampening
System description: Start HPU by pressing switch (7). After a few seconds, the indication light will come on. To Stop HPU, press switch (6) after use. Normally the HPU will be running as it is the same HPU used to operate the Baltic Room Door. Moving the joystick (1) will initiate movement in the direction indicated. Releasing the joystick will spring it back to neutral and the movement stops. The farther travel of the joystick in one direction the faster the movement.
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 8 of 10
If another station (local) has used or is using the controls you will not be able to take control by pushing the joystick button until 40 seconds have passed since the last movement. You can call on quick transfer if priority control switch is pressed (8). If someone is using the other control or 40 seconds have not passed the light will flash (8).
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 9 of 10
Remote Control for LHS:
The control operation mode is according to figure RH311878 1. Activate switch in joystick handle, sets the winch in run mode if not in use by other panel 2. Spare 3. HPU Start / Run, Starts the HPU 4. HPU Stop, Stops the HPU 5. Emergency stop button, press to stop any winch in the Rapp system. Twist to return to normal state. Red LED indicates e-‐stop of system.
R/V SIKULIAQ LOAD HANDLING SYSTEM (LHS) & CTD WINCH OPERATION
This document is meant as a guide and does not supersede the equipment’s Operator Manual.
Rev-‐2 Page 10 of 10
Pre-‐Deployment Check List for LHS and CTD winch operations.
o For Cold Weather Operations: Turn on Door Heater on the way to the Winch Room.
o Winch Room: Walk around and visually inspect the winch drum, sheaves, and wire train for any safety hazards prior to operations. Periodically check proximity sensors on winch by checking that lights are working.
o Winch Room: Check HPU oil levels and that the orange LHS return valve is in the open position. Periodically inspect winches for any oil leaks.
o Winch Room: Safety line up and cofferdam in place.
o Coordinate with techs or engineering that appropriate breakers are opened or closed.
Baltic Room
o Baltic Room access has been limited to personnel involved in the operation who are wearing the proper PPE.
o Double Doors leading to the Wet Lab closed.
Winch Booth
o For Cold Weather Operations, start up the LHS HPU for warm up.
o Pentagon: Check that correct winch (label/number on PC and joystick) on main Operations screen.
o Pentagon: Check Winch Settings [open Menu > System Settings]; constant tension ≤ 50%, max torque ≤ 70%.
o Pentagon: Check and adjust if needed any settings on the Operation Settings page for appropriate values (e.g. auto speeds)
o If needed, adjust any CCTV cameras so they are pointing at the active winch/wire and any sheaves being used for the current operation.
o Pentagon: Check that brake servo pressure is between 30-‐80bar [open Menu > Hydraulic Settings, bottom right corner of the screen] by activating the winch (depress the joystick button only once).
o Under the direction of the Science Tech, take up slack wire.
o Ask the Computer Lab for the water Depth.
o Inform the Bridge that the Pre-‐Check is complete.
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