Hoist MRO: The Basic Level of Operations Discussed Here
You will find that a hoist is basically a device which lifts or lowers a certain load using a system of drum and wheel. A chain or rope is tied around this system. The hoist MRO can be operated in different manners. The winches which are powered by air are used for lifting of materials which are quite heavy. In the different petroleum as well as maritime industries, the winches made of air are used. These winches are extremely durable and safe in nature.
Things to keep in mind
The spring compression is quite an important process which is required to be regulated in the hoists. There is a process called homing the hook which is basically a safety process. Here the cable is retracted and attached to the hoist. Adequate amount of pressure is applied to ensure that the hook does not dangle in the air freely.
Caring for spring bumpers
The different spring bumpers have different measurement for compression. This actually will hold the hook in a particular place. In this manner, the hardening of the cable is also prevented. If the homing is not done properly grave problems can arise. The cable will move back and forth as the aircraft flies and thus it will wear off.
Hook cleaning in hoist MRO
The swivel bearings in the hook are required to be kept clean and this prevents wear and tear from taking place prematurely. Checks of simple nature are performed to ensure whether the swivels are moving freely or not. Cleaning as well as greasing the hook usually solves all problems.
In different rescue operations, the rotor wash of the helicopter, makes the hook to rotate as it gets close to the helicopter. The cable cut cartridge in the hoist MRO is also required to be maintained properly.