2nd, don't use a volatile, chlorinated solvent or solvent-type flushing compound to wash out the gearbox. Any solvent trapped within the voids on the reservoir will bring about corrosion. In regards to gearbox lubrication, applied oil screening is your simplest Instrument for monitoring key indicators like use metal concentrations, additive https://gearbox-oil-treatment58900.activablog.com/33281234/gearbox-oil-treatment-options