Modern AG 20' Predator - Manual (Page 61)

20’ Predatorrr - 61
oPERation
tRoUBlE SHooting gUidE
Problem Possible cause Remedy
excessive Vibrations Check Gear box bolts. tighten if loose.
Check For loose nuts on tighten If loose
bladeholder 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
changed at the same time? blades
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
with worn blade or bolts.
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 nLGI 000 lubricant.
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
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 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 gear box.
Gasket damaged. Replace gasket.
Bolts loose. tighten bolts.