North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
12.2.4 Place the second bearing cup onto the exposed bearing cone. (Gently tap on the outer
edge of the cup to seat the cup against the bearing cone. Under no circumstances should abusive
force be used. Excessive force can damage the roller surface of the bearing cup, causing bearing
failure.)
12.2.5 Thread the bearing retainer (10) into the bearing housing until it is snugly tightened against
the bearing cup. Rotate the drive shaft while tightening the bearing retainer to determine when
“zero” bearing clearance exits. When the bearing cups are seated the “zero" point will be noted by
the increased effort required to rotate the drive shaft.
12.2.6 After “zero” bearing clearance has been obtained, back the bearing retainer > out 2 or 3
notches using the adjustment lock bolt hole as a reference point.
12.2.7 Rap the output end of the shaft with a soft mallet to back-seat the bearing retainer and
establish the bearing clearance in the bearing area. Caution: Failure to back-seat the bearing
race may result in bearing failure. Note: This is a preliminary adjustment. Final measurement and
adjustment will be made in section 13.2
12.2.8 Position the adjustment lock (11) tab in a notch, align the bolt hole with the hole in the
housing, and install the adjustment lock bolt and lockwasher (12 and 13). Proceed to 12.3
12.2.9 (Configuration C ONLY): Support beneath the bearing housing with the bore up.
12.2.10 Lower the drive shaft and main bearing (output end of the shaft first) to the bottom of
the housing bore. The fit should be slightly snug. (Gently tap on the outer race of the bearing if
necessary to seat it in the bottom of the bore). Caution: Do not drive the bearing into the housing
by tapping on the shaft. To do so may damage the roller surface of the bearing.
12.2.11 Securely install the internal snapring (68) in the groove of the bearing housing. Proceed to
12.3
12.2.12 (Configurations D and E ONLY): Support beneath the bearing housing with the bore up.
12.2.13 Install the shaft and bearing into the bore.
12.2.14 Thread the bearing retainer (10) into the bearing housing until it is snugly tightened against
the bearing outer race.
12.2.15 (Back the bearing retainer off a partial notch if necessary) to align the nearest notch with
the adjustment lock (11) tab. Install the adjustment lock bolt and lockwasher (12 and 13).
12.3 Join the bearing housing and bell housing.
12.3.1 (Configuration A, C, F and G ONLY)(Configurations B, D, and E are 1-piece housing designs.
The bearing housing is not a Seperate unit from the bell housing.) Place the bell housing under a
hoist with the large (front) opening down.
47
