Breakdown No. 5
Using a Sylvester
1: Examine the Sylvester.
2: Choose the position for the anchor prop.
3: Set the anchor prop.
4: Attach the long chain.
5: Operate the Sylvester lever.
1: Examine the Sylvester.
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(a) |
Check that the ratchet mechanism for the box is working properly and that the release button can be used correctly.
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(b) |
Examine the chains.
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2: Choose the position for the anchor prop.
3: Set the anchor prop.
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(a) |
See that it has a good setting in the roof and floor.
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(b) |
See that the head of the prop is pointing toward the object to be moved.
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(c) |
Place the short chain of the Sylvester round the foot of the prop.
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Note: When the floor is very soft, a metal shoe may be placed under the foot of the anchor prop to prevent floor penetration and resultant lack of pulling power.
4: Attach the long chain.
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(a) |
Attach one end to the object to be removed.
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(b) |
Pull the chain tight ensuring it is not twisted.
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(c) |
Attach the other end to the Sylvester box making sure that the links are placed correctly in the box attachment. The box should be at the free end of the sword or comb.
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5: Operate the Sylvester lever.
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(a) |
Ensure that the path along which the object is to move is free from obstructions.
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(b) |
Operate the Sylvester lever and draw the box along the sword.
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Note: If the object is not moved into the position required by the lime the box reaches the end of the sword nearest the anchor prop, pull on lever, raise the release button and move the box back along the sword. When the release button is raised control the forward movement or the lever, otherwise the lever and the box may fly forward as the chain is under tension. Pull the chain tight and attach it again to the box. Operate the Sylvester lever handle and move the object into position required. When using a Sylvester never stand between the lever and the object being pulled in case the lever flies over (as it may do if its movement cannot be controlled) and causes injury.
Before releasing the box it is advisable to make sure that the object will not slide or swing back. It may be necessary to have it spragged.