96
TRAK Machine Tools
Southwestern Industries, Inc.
ProtoTRAK SMX, K2, K3 & K4 & Retrofit Safety, Installation, Maintenance, Service and Parts List Manual
1. Move the quill to its top position and lock it in place.
2. Remove the quill handle, hub (by removing Screw A) and key.
3. Remove Screws B and allow the spring housing to unwind.
4. Remove the spring. It is held by a pin on the shaft and slot in the housing.
5. Replace the spring. Rotate the housing clockwise until the spring catches the shaft pin.
6. Rotate (wind up) the housing 1 1/2 turns, replace Screws B, key hub, Screw A, and handle.
5.1.15
Spindle Motor Removal and Replacement
1. While the spindle is running, change the RPM to its lowest value.
2. Disconnect the power to the motor. It is recommended that the power disconnect be
made from the shop feeder box.
3. Disconnect the electrical connection in the conduit box attached to the motor.
4. Crank the speed changer to the highest RPM value.
5. Remove the two screws that fasten the motor to the top of the housing.
CAUTION!
The motor is heavy--about 60 pounds. Be certain you have the proper equipment or
assistance.
6. Tilt the motor toward ram and remove the belt from the motor pulley. Remove motor.
7. If the motor is to be replaced, remove the M8 socket head cap screw at the end of the
motor shaft. Slide the pulley assembly off the motor shaft and onto the new motor.
Figure 36
I00155
5.1.15.1
Spindle Motor Removal and Replacement for machine with the Spindle Control option
1.
Disconnect the power to the motor. It is recommended that the power disconnect
be made from the shop feeder box.
