Section 7: Appendix; Troubleshooting Mower; Troubleshooting Gearbox - Priefert FMX Operator's Manual

Section 7: Appendix

Problem
Mower Vibration
Noisy Mower
Mower Will Not Cut
Clippings Discharges
From Mower Along
Sides or Unevenly
Uneven Cut
Rapid Blade Wear
(Cutting Edge)
Rapid Blade Wear
(Bolt Hole)
Gearbox Overheating
Gearbox Noisy
Gearbox Leaking
30
Mower Troubleshooting
Probable Cause
Mower not being operated at rated 540 RPM speed.
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Possible build up of material on blade spool.
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Bent or Broken Blade.
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Blades unequal weight
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Loose components.
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Low oil in gearbox.
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Slip Clutch Slipping.
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Grass Too High or Dense.
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Wet Grass.
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Rear of mower too low, trapping clippings under mower.
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Mower not level side to side or incorrect deck tilt.
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Possible build-up of clippings under mower.
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Worn or bent blades.
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Excessive ground speed.
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Blade contacting ground.
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Mower not operating at rated 540 RPM Speed.
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Too much ground speed.
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Gearbox Troubleshooting
Low on lubricant.
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Improper type of lubricant.
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Excessive trash build-up around gearbox.
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Rough Gears.
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Worn Bearings.
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Low oil in gearbox.
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May be normal when new.
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Damaged oil seal.
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Bent shaft.
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Shaft rough in oil seal area.
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Oil seal installed wrong.
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Oil seal not sealing in housing.
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Oil level too high.
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Gasket damaged.
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Bolts loose.
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Improper type of lubricant.
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Remedy
Set tractor throttle for proper PTO speed.
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Clean blade spool.
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Replace blades, refer to page 22.
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Replace blades, refer to page 22.
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Check all bolts for tightness.
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Check PTO clearances with Tractor drawbar, etc.
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Adjust slip clutch according to instructions on page 15.
Reduce ground speed but maintain 540 RPM at tractor
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PTO, OR
Make two passes- raise mower cutting height for first
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pass and lower to desired cutting height for second pass.
Allow grass to dry before mowing. Slow ground speed
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but maintain tractor RPM 540. Cutting lower will help.
Refer to page 15for leveling & adjusting cutting height.
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Refer to page 13 for leveling deck.
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Clean mower.
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Replace blades, refer to page 22.
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Reduce ground speed.
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Adjust mower to operate at height that will eliminate
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ground contact.
Reduce ground speed. Set tractor throttle for proper
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PTO Speed.
Use lower gear.
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Fill to proper level.
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Replace with proper lubricant.
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Remove Trash.
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Run-in or change gears.
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Replace bearing.
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Check level and add oil.
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Allow for initial break-in.
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Replace seal.
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Replace oil seal and shaft.
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Replace or repair shaft.
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Replace seal.
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Replace seal or use a sealant on outside
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diameter of seal.
Drain oil to proper level.
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Replace gasket.
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Tighten bolts.
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Replace with proper lubricant.
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