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Sharpening Teeth
NOTICE
Sharpening cemented carbide cutting teeth requires
a special process. Have your teeth sharpened only
by a qualified machinist for obtaining a proper edge
and to avoid injury.
DO NOT allow any tooth to wear too much before sharpening.
Discard any tooth that has lost more than 1/8" of original bite.
Remove the tooth from the cutting wheel to be sharpened.
Tooth Sharpening Guidelines:
1. Obtain an unused tooth for comparison.
2. Discard any tooth that has lost more than 1/8" of original
bite, whether lost through usage or grinding.
3. Grind off a minimal amount from the end, just enough
to restore the original taper and radius on the end. The
end of the cemented carbide tip and the end of the steel
shank should be flush after grinding.
Cutter Wheel Bearings
Lubricate
DO NOT ATTEMPT TO GREASE CUTTER WHEEL
BEARINGS WHILE CUTTER WHEEL IS SPINNING.
BE SURE CUTTER WHEEL HAS COME TO A
COMPLETE STOP, MACHINE IS OFF BEFORE
GREASING CUTTER WHEEL BEARING.
SERIOUS INURY OR DEATH COULD RESULT.
INSERT GREASE SLOWLY AND CAREFULLY TO
PREVENT DAMAGE TO THE BEARING SEALS. USE
EXTRA CAUTION WHEN USING A HIGH PRESSURE
OR HIGH VOLUME GREASE GUN.
Lubricate the cutter wheel bearings zerk(1) fitting DAILY. Fill
with high-temperature (NLGI 2) grease until you can visually
800.392.2686
RG74DXH Operator · Service · Maintenance Manual
see the old grease purge itself out all the way around the seal
diameter and new grease beginning to purge out.
This will ensure that the dirt and debris that gets collected
inside the seal area is flushed away from the internal bearings
thus providing longevity to the bearing and races.
Engine Leaks - Check
Check for leaks as described in the "After First 50 Hours"
interval of the Cummins Engine Operation Manual.Engine
Mounts - Check
Check and tighten if necessary all engine mounts.
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