Nexen TCC-10 835141 - Manual (Page 7)

4 FORM NO. L-20069-E-0210
Q.D. (TAPER BORE) ROTOR HUB ASSEMBLY
FIGURE 7
FIGURE 8
Please verify that you are in the correct rotor section for
your model. This is the Q.D. Taper Bore Rotor Hub section.
The instructions for the Straight Bore Rotor Hub are in the
previous section.
REFER TO FIGURES 7-8.
1. Thoroughly inspect the tapered bore of the splined
hub and the tapered surface of the Q.D. bushing.
Remove any dirt, grease, or foreign particles. Do
not use any lubricants for this installation. Align the
untapped holes in the bushing with the tapped holes
in the hub and assemble the Q.D. bushing into the
splined hub.
2. Insert the pull-up bolts with Lock Washers into the
Q.D. bushing and hub and then alternate as you
tighten them evenly to the recommended torque
(See Table 2).
TABLE 2 Tightening Torques
Model Bushing Tightening Torque
TCC-10 JA 5 ft-lbs [6.7 Nm]
TCC-14 SK 15 ft-lbs [20.2 Nm]
TCC-20 J 135 ft-lbs [182.2 Nm]
CAUTION
Do not use lubricants or thread locking
compounds on these bolts or they may
tighten beyond the limits noted in Table
2 and the splined hub may burst.
CAUTION
The tightening force on the pull-up bolts
is multiplied by the wedging action of the
tapered surface. Do not tighten beyond
the limits noted in Table 2 or the splined
hub may burst.
3. Place the Key in the shaft keyway, slide the rotor
assembly onto the motor shaft.
4. Alternate as you evenly tighten the pull-up bolts to
the recommended torque (See Table 2).
5. Use a Dial Indicator to minimize run-out as you
tighten the Q.D. bushing pull-up bolts. To measure
run-out, place the contact tip of the Dial Indicator on
the machined surface of the Rotor. Maximum run-out
must be less than 0.007" [18 mm].
6. Use the Cap Screws (Item 18) and the Lock
Washers (Item 19) to fasten one-half of the Caliper
and Friction Facing assembly to the flange side
of the Housing (Item 8) at each caliper position.
Tighten the Cap Screws to 7 ft-lbs [9.5 Nm]
Cap
Screw
(Item 18)
Caliper
Half
Lock
Washers
(Item 19)
Housing
(Item 8)
Dial
Indicator