Place R-741 Arbor into Spindle (8) making sure that the mating surfaces are
clean and covered with a light film of oil. Rotate Draw Bar Nut (126) clockwise and
tighten to 60 ft./lbs. of torque with R-154 Open End Wrench.
Place CB-35 Tool Bit into Boring Bar (146) and fasten securely with the two
Square Head Set Screws (147). The tool bit slot in the head of the Boring Bar (146)
is deep enough to allow several degrees adjustment of tool bit angle.
Loosen Hex Head Cap Screw (150) and extend Boring Bar (146) approximately
five inches. Tighten Hex Head Cap Screw (150).
Place CB-6 Tool Bit into Left Holder (133) and CB-12 Tool Bit into Right Hold-
er (132). Tighten both Square Head Set Screws (138) and the two Socket Set Screws
(139). Tool bits should be in the same relative position. The tool bit slots are deep
enough to allow several degrees adjustment of tool bit angle.
1 - 1 5 . Insert Vibration Dampener Assembly (151) into hole in Right Holder (132) and
place shank of Tension Spring (155) against lowest thread on left hand side of Square
Head Set Screw (138). Rotate Vibration Dampener Assembly (151) clockwise until
Rod (153) passes over Square Head Set Screw (138). P u s h V i b r a t i o n D a m p e n e r A s s e m -
bly (151) down so it rests on Right Holder (132) against right hand side of Square Set
Deactivate Vibration Dampener Assembly (151) by rotating clockwise 1/8" turn
to a point where the Block (152) can be pushed down and retained behind the Right Hold-
Insert two socket head screw keys into the two socket head capscrews (137) and the
long shank of the socket head screw key into the left socket setscrew (139). Leave keys
in their respective socket setscrews when machining to prevent chip accumulation in sock-
Position Lamp (254) over Lamp Bracket (253) and plug into grounded Recepta-
cle (206). Use a standard bulb of 75 watts or less.
Tool Plate (128). To position Tool Plate (128) for
either drum turning or disc refacing, loosen Hex Head Cap Screw (150). Slide Boring
Bar (146) in or out, depending on desired Tool Plate (128) position. Rotate Tool Plate
(128) to desired position. It might be necessary to crank out the Cross Slide (102) to
provide clearance for the Boring Bar (146) end. When positioning Tool Plate (128) for
rotor refacing, visually align the Tool Plate (128) edge with top of End Plate (112).
1 - 2 1 . Mounting Drums and Discs on Arbor. Mount Drums or Discs on arbor using
one of the following methods which apply:
Tapered Bearing Equipped Hub: Select the proper Centering Cones to fit into
the inner and outer bearing cups. I n c e r t a i n a p p l i c a t i o n s w h e r e t h e b e a r i n g c u p
is recessed deeply, it is proper for the Centering Cone to center into the hub.
Place Centering Cone for inner bearing cup on arbor, followed by hub and Cen-
tering Cone for outer bearing cup. Place R-540 Spacers on arbor, the R-745
A r b o r N u t . Tighten Arbor Nut with the R-154 Open End Wrench.
Ball Bearing Equipped Hub: Follow instructions for tapered bearing equipped
L o o s e D r u m o r D i s c : Select Centering Cone to fit into center of drum. Place
one R-655 Face Plate on R-741 Arbor followed by the R-675 Spring and Center-
ing Cone. Place drum or disc on Arbor over Centering Cone and push drum
up to pads of R-655 Face Plate. Place other R-655 Face Plate on Arbor and
push against drum or disc. Place R-540 Spacers on Arbor so that the two
Face Plates can hold the drum or disc secure when the Arbor Nut is tightened.