English to Spanish Tech/Engineering Mechanics / Mech Engineering Bucket elevator inspection

Hi! I'm translating a video on bucket elevator inspections. Any idea of what "floating boots" can mean in this context (boots being one of the sections of bucket elevators) and how it can be translated into Spanish?:

00:03:31:00 00:03:32:18
While the equipment is running,

00:03:32:19 00:03:36:08
do a general visual inspection
of the entire piece of the equipment.

00:03:36:09 00:03:40:14
Look, listen and feel
for the signs of failure.

00:03:40:15 00:03:43:06
You need to look for casing wear.

00:03:43:07 00:03:46:03
You listen for buckets rubbing.

00:03:46:04 00:03:49:14
You need to feel the bearings
for high temperature.

00:03:49:15 00:03:52:28
You listen for bearings grinding.

00:03:52:29 00:03:56:13
You check for abnormal odors.

00:03:56:14 00:03:59:22
We need to complete
a 360 visual inspection

00:03:59:23 00:04:04:18
looking for electrical, mechanical
or structural problems.

00:04:04:19 00:04:07:10
For floating boots, we need to check
fully-loaded,

00:04:07:11 00:04:09:26
how much travel does the pulley move,

00:04:09:27 00:04:13:16
and how much more do they have left to go
before it bottoms out.


Thanks!

Mirela