North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
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3. Push the operating shaft the other way to expose the other key slot in the center of the fork.
4. Install the other woodruff key (56).
5. Center the operating fork so the hex head capscrews will enter the bottom of the throwout
fork and thread into the top section. Install the two hex-head capscrews and tighten. Torque the
capscrews to the proper specifications given in Torque Values for Fasteners in the Description
and Specifications section.
6. Install the stop collar (76) (if used) per instructions given in Hand Lever Position for Twin Disc
Power Take-Offs in the Installation section of this manual.
(Proceed to PTO Final Assembly)
PTO fINAl ASSeMBly
Install The Clutch In The Clutch Housing
1. Set up and support the main housing assembly (44) with attached parts on the bench with
the input side facing up.
Note: The output end of the shaft must rest securely on a solid surface.
2. Carefully place the clutch assembly over the clutch shaft while:
A. Aligning the trunnions on the collar with the throwout fork.
B. Aligning the keyways in the hub-and-back plate with the keyway in the clutch shaft.
3. Partially install the hub key (29) in the keyway. Tap the hub-and-back plate with a large, but
soft mallet, to seat it on the tapered surface of the clutch shaft.
Be sure the output end of the shaft is resting on a solid surface to absorb the force through the
shaft rather than through the bearing surfaces.
