Best way to remove plunger bearing allenhead retainer 27

Fjordman · Jul 17, 2022

Trying to change plunger bearings on 271 new Holland. Don't want to strip it, is there "best practice"

Thinking about heating up. Had penitrating oil on it for 2 days.

Thanks,
Warren

used red MN · Jul 17, 2022

Never seen the ..innards.. of an NH baler. Per the
attached diagram it looks like you may be dealing with
a common self aligned pillow block bearing and the
Allen head screw is securing the eccentric locking
collar. Placing a small punch in the hex hole an giving it
a few smart taps can help loosen them. Also if can
access the side of the area the Allen threads into and
again with a punch smack it a bit more properly this
can help, see photo. Even though this seem counter
productive to smash the area, the blows are for a
millisecond egg shaping the threaded hole helping to
loosen the bonds of the threads. If in fact it is an
eccentric lock collar hopefully you know it needs to be
driven to rotate it to unlock it from the shaft and
bearing. Usually needs to be driven in the opposite
way of the direction the inner race rotates. If your baler
pressing stroke occurs as most do on the bottom half
of the crank stroke the lock should drive clockwise to
release.

CNHI NH baler diagram

caterpillar guy · Jul 17, 2022

I your picture Red you have 2 different bearings there one has a lock collar the other is just set with the 2 allen screws tightened on the shaft. that one would just need the set screws loosened up to come off. The collared one is as you describe.

MarkB_MI · Jul 18, 2022

I've never worked on a baler, but heat can do wonders to loosen stuff up. If you're trying to loosen a set screw, put heat directly on the screw.

Best way to remove plunger bearing allenhead retainer 27

Fjordman

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used red MN

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caterpillar guy

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MarkB_MI

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