Thank you once again to everyone whose sage advice was so helpful.
I disassembled the crane, cleaned out the hard gunk and lightly lubed the gears. Everything worked! The problem: a loud screeching, but only when the crane swings in one direction. I hate to take the whole thing apart again. To me it sounds like gears may not be meshing. Any thoughts or ideas will be much appreciated. Attached is a video to help your diagnosis.
Thanks, as always
Rubin
Replies sorted oldest to newest
Firstly, I know nothing about this crane. I couldn’t resist a look from the title. In your video, it screams when moving to the right and that has me giggling about perspective. But... I think disassembly is your only choice. Can you activate the motor with it disassembled? If so, how’s it sound? Is the rest of the mechanism easy to move in both directions? Whatever is wrong, I’d bet parts are scarce. Your best shot might be finding a repair person with experience on these.
Take the bucket off the hook and see if it still makes the noise. The weight of the bucket should change the sound. If it does there are contacts under the cab platform that could be causing the noise.
Thanks for the thought. Unfortunately the noise got louder and more shrill when I took off the clamshell. Any ideas welcome.
Lubing the gears is OK, but even more necessary is to add a light drop of oil to every single rotating shaft, right where it goes into whatever bearing it sits in. To me, that sounds like a dry shaft/axle/armature.
Access to this requires an OGR Forum Supporting Membership
