Bush Hog 12814, Operator'S Manual, Page: 153 / 206

OPERATION
2814-2820 08/20 Operation Section 4-49
© 2020 Alamo Group Inc.
OPERA
TION
15. TROUBLE SHOOTING GUIDE
Problem Possible Cause Remedy
Excessive Vibrations Check Gearbox bolts. Tighten if loose.
Check for loose nuts on Tighten if loose.
Blade holder and Blades
Check for bent output shaft.
Replace shaft if bent.
If shaft is bent oil will normally
leak from the bottom seal.
Check to see if blades are
Free blades so they swing
free swinging.
Check for even wear on each
Weigh blades. Weight should be
blade tip. Were both blades within 1 oz. Always replace both blades
changed at the same time?
Blade Broken.
Replace blades, in sets.
Blade carrier bent. Replace carrier.
Blade hub not properly Remove hub, check tapered spline
seated on shaft shaft, clean and replace.
New Blade or bolts matched Replace blades or bolts in sets
Drivelines not phased correctly. Replace Drivelines.
Implement & tractor yokes must
be in line.
Gearbox Overheating Low on lubricant. Fill to level plug.
Improper type lubricant. Replace with EP80W-90.
Excessive trash build-up Remove trash.
around gear box
Bearing or gears set up improperly
Consult your dealer.
Gearbox Noisy Rough gears. Run in or change gears.
Worn bearing. Replace bearing
Gear Box 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 wrong. Replace seal.
Oil seal not sealing in the housing. Replace seal or use a sealant
on OD of seal.
Oil level too high. Drain oil to proper level.
Sand hole in casting. Replace castings or gearbox.
Gasket damaged. Replace gasket.
Bolts loose. Tighten bolts.
Clutch Slips Excessively Clutch linings badly worn or Repair clutch per maintenance
plates warped. section of manuals.
Too much power for clutch. Reduce ground speed and material
intake.
Oil on facings. Replace facings.
Friction facings glazed. Clean with emery cloth.