Harrington-hoists-and-cranes LB Lever Hoist - (L5) Manuel d'utilisateur télécharger pdf (Page 17)

4.3 Hoist Operation

4.3.1 Free Chain Principle

 Free chaining allows the load chain to be moved freely because the brake is released under no

load situations.

 Pulling the free knob actuates the internal spring to release the mechanical brake allowing the load

chain to be pulled in either direction to the desired length. Refer to Figure 4-1.

 The brake is engaged during lowering or lifting the load.

Figure 4-1 Free Chain Mode

4.3.2 Free Chain Operation



Do not operate the hoist Free Knob while a load is applied to the hoist.



Do not touch the hoist Free Knob during lifting or lowering of the load.



Always check that the selector is placed in the proper position.

4) Set the Selector to the “N” position. The Selector is located under the Free Knob on the hand

lever.

5) Pull the Free Knob out. The Free Knob turns counterclockwise and “snaps” out.

6) Pull the load chain to move the hook to the desired position.



Do not pull the load chain suddenly in free chain mode. Excessive pulling may

set the brake and not allow the load chain to move. If this occurs the hoist must be reset.

8) To reset the hoist to operate, rotate the Free Knob clockwise while pulling lightly on the load side

chain. Once slack is removed, the Free Knob “snaps” in. This resets the brake and allows the

hoist to be operated with the hand lever.

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Harrington-hoists-and-cranes LB Lever Hoist - (L5) Manuel d'utilisateur Page 17