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Noisy machine
Worn bearing Replace bearings
Low oil in gearbox Check level and add oil
Loose Parts Check all bolts are fully tightened
Wrong PTO rpm rate Check PTO rate & adjust as necessary
Rotors bent / broken Replace bent or missing blades
Bent PTO shaft Check PTO shafts are aligned correctly
Check output shaft on gearboxes are not bent
Check driveline between gearboxes is aligned.
Gearbox leaking
Damaged oil seal Replace seal
Bent shaft Replace oil seal and shaft
Shaft rough in oil seal area Replace or repair shaft
Oil seal installed incorrectly Replace seal
Oil seal not sealing in the housing
Replace seal or use a sealant on outside
diameter of seal
Oil level too high Drain oil to proper level
Hole in gearbox Replace the gearbox
Gasket damaged Replace gasket
Bolts loose Tighten bolts