The model number of our gearbox is P2195.

Yes, we found the source of the leak. It is from our output shaft due to collapsing the V-seal on the oil tube/dam. This v-seal is not submerged and is only prevents splashing of the oil to the out shaft and seal. Now I have 12 of the 15 gearboxes leaking. To get to this V-seal we need to completely disassemble the gearbox. Note this is not part of normal PMs.

Amarillo has failed to give us a convincing answer of why the seal is failing.

Just heads up this is not the only problem we have with these gearboxes.