North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
4.7.5 Bolt the support plate to the PTO. Begin tightening the bolts which affix the
support plate to the base. Read the dial indicators. Add shims until the indicators read
0+0.001 inches (0.0254 mm.), after the mounting bolts have been installed and properly
torqued. The dial indicator readings must remain 0.001 inches (0.0254 mm.) of
zero. The support plate is intended to maintain alignment of the bearings when a side
load is imposed on the output shaft.
4.7.6 Install the pulley or other drive component on the shaft. The pulley must be
mounted so that the center of the side load is as close to the center of the main
bearings as possible.
4.8 Attaching and shimming an outboard shaft support bearing (optional output -
special applications only).
NOTE: Perform the following procedure carefully and precisely. Misaligned bearings
result in PTO failures.
4.8.1 The power take off must be bolted to the engine.
4.8.2 Align the support plate as described in section 4.7.
4.8.3 Bolt and torque the outboard bearing support member to the frame.
4.8.4 Install the outboard bearing on the PTO shaft in the position where it will later be
tightened to the outboard bearing support member. Install shims between the outboard
bearing and the support member, but leave a small gap in the shim slot at this time.
17
Dial Indicator
Shim Here
Support
Member
Outboard
Bearing