Gearbox leaking damaged oil seal. replace seal, No oil seal. install oil seal, Oil too light. use nlgi-000 grease, or – Servis-Rhino CY72 User Manual

Page 124: Mobilux ep023, or gulf ep023, or, Sun 740-a ep grease, Bent shaft. replace oil seal and shaft, Oil seal race rough. replace shaft or repair race, Oil seal installed wrong. replace seal, Of seal, Bearings loose. adjust bearings