KELLO-BILT 800 Series, Owner'S Manual, Page: 20 / 40

Keep Gang Assemblies Tight
□ To ensure proper function and maximum durability, the axle nuts should be checked and
tightened daily during the first (7) days of operation when the disc is new or after replacing any of
the gang components.
□ Loose axles may bend or break or cause damage to other components of the gang assembly.
Maintaining tight gangs is necessary to ensure maximum bearing life.
□ A loose gang assembly is evident when some disc blades stop turning when discing or turn at a
different speed than other discs on the same
assembly.
□ To tighten the axle without removing the gang
assembly from the disc:
To minimize the possibility of thread damage, clean
out the cavity between the inside of the nut and the
flat milled surface at the end of the axle. After using
compressed air or a pressure washer to remove as
much material as possible, pour or spray a light oil
or penetrating fluid into the cavity.
Unbolt and remove the nut locks from the
end washers on both ends of the axle.
Loosen but do not remove the bolts holding
the bearings to the bearing standards.
Place one wrench on an axle nut to prevent
the axle from turning.
Use the other wrench and an extension
(i.e. 4 to 5 foot length of 2” pipe) or a
sledge hammer to tighten the axle nut on
the opposite end of the axle. Tighten the
nut to approximately 2000-2200 ft/lbs.
Retighten the bearing bolts. If the gang is
excessively loose it may be necessary to completely disassemble the entire assembly and clean the
mating surfaces between the spools, bearings, end washers and disc blades.
□ If it is necessary to remove and disassemble the gang assembly, use suitable lifting devices and
supports to prevent injury.
With the disc lowered to the ground, first remove the scrapers and then unbolt the bearings from
the bearing standards. There are four 1-1/4” x 5” bolts holding each gang assembly to the gang
bar. Once the bolts are removed, raise the disc high enough to either roll or pull the assembly
from under the disc. Block the gang to prevent it from rolling. Remove the nut locks from both
ends of the assembly. Use one wrench to keep the gang from turning while using the other
wrench to tighten the nut at the opposite end of the assembly.
It may not be possible to properly tighten the gang if dirt, grit or debris has built-up between the
components. In this case remove a nut from one end of the axle, slide off the end washers,
bearings, spools and disc blades. Thoroughly clean the mating surfaces between the
components and reassemble on the disc gang (see assembly section). Clean the threads on the
axle and in the axle nut. Apply an anti-seize compound to the axle threads and reinstall the nut.
Tighten the nut and reinstall the nut locks. Place the assembly under the disc and bolt to the
gang bar bearing standards. Occasionally turn the gang while tightening the bolts to check the
gang turns freely. Retighten the bearing bolts after the first 10-12 hours of operation.
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