Will not overlook to re-seal the gearbox with RTV right after you’ve got identified the proper combination. Even although they’re called “gaskets”, they will not seal your gearbox on their personal.
If everything looks regular, try modifying the equipment-mesh. This is carried out with the mylar “gaskets” that sit amongst the main gearbox circumstance and the enter/output caps. Try out introducing or taking away some of these spacers till your gears have roughly 1/8″-1/four” of cost-free enjoy. Experts can purchase replacements ($1-two) in various thicknesses, but we recommend the fast and dirty method of slicing your very own out of a sheet of mylar.
“Groaning”, “creaking”, or “popping” all seem type-of comparable more than-the-phone. The 
greatest thing to do is to disassemble your gearbox and just take a search at the gears and bearings. The issue will generally current itself in the way of broken/lacking equipment teeth, toasted gears (like that photograph on our home website page), or blown bearings.
My Gearbox is Groaning
/Creaking:
Need to know about rotary cutter gearbox? Please check out the website.