North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
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ALIGNMENT OF IN LINE DRIVE
"U" Joint Type Installation
To realize the longest possible life of the power take off bearings, the best possible alignment
must be main tained between the center line of the power take off shaft and the center line of
the driven member shaft. See Figure 13.
This may be accomplished as follows:
First, and very important, the forks of the drive shaft, between the PTO and the driven member,
must lie in the same plane. This will prevent severe vibrations from occurring in the drive shaft.
Second, the center lines of the PTO shaft and driven member input shaft must be offset within
the limits recommended by the universal joint manufacturer to prolong the life of the universal
joint needle bearings.
Third, and very important, the center lines of the PTO shaft and driven member input shaft must
be parallel. This will further prevent vibrations which cause premature PTO bearing failure.
Proper lubrication of the power take off is also very im portant for satisfactory performance.
A high grade grease gun lubricant should be used. The grease selected should be recommended
for anti friction bearings and have a minimum melting point of 300° F.
A list of approved lubricants is available upon request.
