How to test swing motor play safely in the field

Tractorpants

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Joined
Dec 18, 2025
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My 3CX has some slop in the swing, and I’m trying to determine if it’s just normal wear or if something might be on the verge of breaking.
What’s the best way to check for swing motor play without making things worse
or putting myself in harm’s way under a moving machine?
 
Start by parking on flat ground and lowering the boom to relieve pressure.
Next, take hold of the bucket edge and try to rock it back and forth if you hear any clunking, that indicates wear.
 
Pay attention to any grinding or popping sounds when performing a swing cycle.

Noises coming from the center should raise concerns and require prompt action.
 
Also, inspect the waste grease for any metal flakes.
If you spot those sequins, it’s a clear sign that the slew bearing is on its way out.
It’s a straightforward but messy check.
 
Great advice. Loosen the tension, listen for any unusual sounds, and give the grease a quick check. If anything seems off, take it as a sign to investigate further before it becomes a more complicated issue.
 
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