Hoffman Mechatronics
Bridgeport Mill J1 Rebuild
Figure 47– Removing/Reinstalling the Knee
Once you have removed the knee from the mill base, you can start to disassemble the knee by
removing the crank assembly. Start by removing the crank and dial assembly as shown in Figure
48 below to expose the Bearing Plate Bolts. With the Dial removed you can remove the bearing
plate bolts and pull the elevating shaft from the knee.
Bearing Plate
Bolts
Figure 48 - After the Crank and Dial have been Removed
With the elevating shaft removed from the knee, you can also now remove the elevating screw
and bevel gear. The bevel gear is attached to the elevating screw with a nut as shown in Figure
49 below.
BPJ1RBLD_002
49
January 31, 201111
