North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
4.1.3 Use the clutch drive ring provided with the PTO or remove the drive ring from the
engine flywheel to use as an alignment gauge. Place the drive ring over the clutch facings
with the clutch disengaged. Mesh the drive teeth of the facings with the drive ring and
align the facings by centering the drive ring relative to the O.D. of the clutch body. While
holding the drive ring and facings centered, engage the clutch.
4.1.4 Remove the drive ring.
4.2 Flywheel And Flywheel Housing Alignment Checks
It is strongly recommended that dial indicator checks be made (as shown in section 2.7)
prior to installation of the PTO, especially on new engines or when bearing failures or
shaft wear were found after the previous PTO was removed and examined for cause of
failure.
4.3 Lubrication Required Before Installation
4.3.1 See section 3.1 for information on the type(s) of lubricant(s) required.
4.3.2 Lubricate as follows before installation: (See illustration in section 3.2 for locations
of grease fittings)
Release Bearing: (except non-greasable type)
Bronze and greasable ball-type release bearing:
With a hand operated grease gun, add 1 or 2 pumps of grease per 8-10 hrs. operation (or
until grease begins to weep from the I.D. of the bearing and the release sleeve.) Rotate
the shaft (by hand) while adding grease. DO NOT OVERGREASE!
Release Bearing: (non-greasable type)
Non-greasable ball bearing type release bearing:
Sealed bearing-no lubrication required.
Main Bearing:
With a hand operated grease gun, add 1 or 2 pumps of grease while rotating the shaft (by
hand), or until grease weeps from the labyrinth seals around the shaft at either end of the
bearing housing.
Pilot Bearing Lube Passage:
Some PTO’s have a hole drilled through the length of the shaft to provide lube to the pilot
bearing. The grease fitting may be located either at the end or on the side of the output
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