Section 7: Appendix
Mower
Troubleshooting
Problem
Probable Cause
Remedy
Mower Vibration
∗
Mower not being operated at rated 540 RPM speed.
∗
Possible build up of material on blade spool.
∗
Bent or Broken Blade.
∗
Blades unequal weight
∗
Set tractor throttle for proper PTO speed.
∗
Clean blade spool.
∗
Replace blades, refer to page 22.
∗
Replace blades, refer to page 22.
Noisy Mower
∗
Loose components.
∗
Low oil in gearbox.
∗
Check all bolts for tightness.
∗
Check PTO clearances with Tractor drawbar, etc.
Mower Will Not Cut
∗
Slip Clutch Slipping. Adjust slip clutch according to instructions on page 15.
Clippings Discharges
From Mower Along
Sides or Unevenly
∗
Grass Too High or Dense.
∗
Wet Grass.
∗
Rear of mower too low, trapping clippings under mower.
∗
Reduce ground speed but maintain 540 RPM at tractor
PTO, OR
∗
Make two passes- raise mower cutting height for first
pass and lower to desired cutting height for second pass.
∗
Allow grass to dry before mowing. Slow ground speed
but maintain tractor RPM 540. Cutting lower will help.
∗
Refer to page 15for leveling & adjusting cutting height.
Uneven Cut
∗
Mower not level side to side or incorrect deck tilt.
∗
Possible build-up of clippings under mower.
∗
Worn or bent blades.
∗
Excessive ground speed.
∗
Refer to page 13 for leveling deck.
∗
Clean mower.
∗
Replace blades, refer to page 22.
∗
Reduce ground speed.
Rapid Blade Wear
(Cutting Edge)
∗
Blade contacting ground.
∗
Adjust mower to operate at height that will eliminate
ground contact.
Rapid Blade Wear
(Bolt Hole)
∗
Mower not operating at rated 540 RPM Speed.
∗
Too much ground speed.
∗
Reduce ground speed. Set tractor throttle for proper
PTO Speed.
∗
Use lower gear.
Gearbox
Troubleshooting
Gearbox Overheating
∗
Low on lubricant.
∗
Improper type of lubricant.
∗
Excessive trash build-up around gearbox.
∗
Fill to proper level.
∗
Replace with proper lubricant.
∗
Remove Trash.
Gearbox Noisy
∗
Rough Gears.
∗
Worn Bearings.
∗
Low oil in gearbox.
∗
May be normal when new.
∗
Run-in or change gears.
∗
Replace bearing.
∗
Check level and add oil.
∗
Allow for initial break-in.
Gearbox Leaking
∗
Damaged oil seal.
∗
Bent shaft.
∗
Shaft rough in oil seal area.
∗
Oil seal installed wrong.
∗
Oil seal not sealing in housing.
∗
Oil level too high.
∗
Gasket damaged.
∗
Bolts loose.
∗
Improper type of lubricant.
∗
Replace seal.
∗
Replace oil seal and shaft.
∗
Replace or repair shaft.
∗
Replace seal.
∗
Replace seal or use a sealant on outside
diameter of seal.
∗
Drain oil to proper level.
∗
Replace gasket.
∗
Tighten bolts.
∗
Replace with proper lubricant.
30
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