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Mower seems to require
excessive power
Advancing into grass too rapidly Reduce forward travel speed
Hitting ground Raise mower and reset wheels
Worn or dull blades Sharpen or replace blades
Tractor not large enough Use larger horsepower tractor
Excessive vibration Check gearbox bolts Tighten if loose
Check for loose nuts on blades Tighten if loose
Blade broken Replace blades, in set
New blade or bolts matched with worn blade
or bolts
Replace blades or bolts in sets
Drivelines not phased correctly. Implement
and tractor yokes must be in line
Phase the driveline. Replace if necessary
Gearbox noisy Worn bearing Replace bearings
Low oil in gearbox Check level and add oil
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
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