Grease fitting cleaner - Kubota L3800 Tractor Maintenance Quick Tip

Focused entirely on one narrow maintenance task: cleaning recessed zerk fittings on a loader arm. The creator walks through a DIY tool made from a T-barb fitting, half-inch PEX tubing, a cloth patch, a rubber band, and WD-40, adapting an idea from another YouTube channel. It's a short, single-tip video with no hands-on tractor operation; most useful to owners frustrated by gunked-up grease fittings.

Posted by the USNERDOC channel, which appears to be an individual owner sharing personal shop tips rather than a dealer or manufacturer.