Procedure for maintenance and repair activities of wooden ships.
1. The procedure is basically not too complicated and bureaucratic. After there is a letter of introduction from the syahbandar (or it can be assisted by the shipyard) and after a mutual agreement the ship repair process begins.
2. The first procedure carried out is to notify the shipyard regarding the owner’s wishes in carrying out docking activities.
3. The notification also determines the date and time of stealing the ship onto the slipway. Determination of docking time based on the availability of existing places and also based on the old trust of the ship owner.
4. After negotiations run smoothly and agreed by both parties, the ship can be directly loaded onto the slipway according to a predetermined date and time.
Broadly speaking, ship docking activities are divided into :
1. Withdraw the ship onto the slipway.
2. Washing and cleaning the entire hull.
3. Pemakalan and pendempemp.
4. Repair damage to parts of the ship, especially timber.
5. Painting the ship.
6. Repair of engines, anchors and others.
7. Drop ship from the slipway.
1. Withdraw the ship onto the slipway.
Ships that will experience docking are loaded onto a slipway using lorries that are pulled by ropes that are pulled using a winch hauler (boom). The process of boarding the ship involved 6-10 people (depending on the size of the ship, with 1 person in command, five of them entered the pond to ensure the ship was in the middle of the lorry. They also kept the ship in the middle in equilibrium during the ship-raising process, the bottom of the ship’s left and right hulls are propped up using several wooden blocks, this process takes minutes, depending on the size of the ship to be loaded onto the slipway.
2. The process of washing the ship.
After the ship is on the slipway, the first activity carried out is the cleaning or washing of all parts of the ship. This washing uses fresh water from plumbing. During the washing process, cleaning of the hull of marine animals and other debris attached to the hull is carried out. The tools used are iron scoop and brush. This cleaning is carried out throughout the hull, especially the hull. This activity lasts for 1-2 hours. With the condition of the ship that is clean, it can be seen with certainty and clarity about the condition of the ship, so that it can know the parts that need repair or replacement. Damaged parts can be removed first to be repaired, including the propellers, steering wheel, front and rear valves, propeller axles and machining parts.
3. Putty ship body.
The ship maintenance process that is routinely carried out every year is repainting the ship. This process begins with the removal of old and exfoliated paint, followed by the process of replacing worn-out hulling boards and wear. The process of pakal is patching activity, the inter-board portion of the ship’s hull using makjun. Makjun is a kind of fiber made from rummy. This fiber is inserted in between the boards by using a hammer and clothes.
The picking and picking process takes 2-3 days depending on the number of workers and the size of the ship being worked on.
The part that is finished is lubricated with putty mixture from the mixture of dammar powder and ship putty (table below).
|Dammar + ship putty powder||Dark brown||Patching makjun in the cavity between the boards on the hull of the ship|
|Putty ship + white cement||Light brown||Patching pipes or other iron bars|
|White cement powder + ship glue||White||Patching leaks and holes in the hull|
|Putty||Cream||Patch the biggest, most powerful and most expensive leak|
4. Painting the ship.
The process of painting starts with applying menie paint to all parts of the ship’s hull. Provision of menie paint starts from the keel (base) to the highest water line limit. This paint is expected to be anti-fouling and anti-rust on the hull. The next process is the provision of paint in accordance with the wishes of the ship owner. This paint coatings the menie paint that has been dried before. The process of painting a ship is carried out by a different group of workers from before. A total of 5-6 people can be completed in 1-2 days. If all vessel maintenance activities are completed, the other parts of the ship are removed beforehand (steering wheel, propeller, front rear clamp and propeller shaft) can be replaced.
5. Repair Activities.
Substitution of full wood, addition of full wood (extending the keel of the ship to the stern, and addition of keelwood add to the thickness of the keel). Front and rear clamps paid off and the steering wheel. Clamp is a part made of iron which is located at the connection of the front and rear of the ship with the keel of the ship. Clamp serves to strengthen the connection. Installation of clamp using nuts which are poured into tall wood and paid off. The weathered or damaged steering wheel can be replaced according to its original size. Repair or replacement of the propeller is only done if it is broken. Broken propeller leaves can be reconnected by welding or replaced by new propellers. The repair process is also often done to replace the decayed deck boards.
6. Drop ship from the slipway.
The process of descent is almost similar to that of a ship only in the opposite direction. Usually the ship decline is faster than the withdrawal of the ship.