5.1.5 Cable Routing on Machine
Whenever you replace a cable or reroute a cable it is very important to keep the power
cables and logic cables separated from each other. The power cables consist of the (2)
110-volt motor cables and (2) 110-volt power cables for the pendant, and a coolant
pump or solenoid power cable. The logic cables are used to carry encoder signals
between the cable breakout box and computer module. Mixing of the power and logic
cables may cause noise from the power cables to interrupt the signals in the logic cables.
This can lead to intermittent axis faults or repeatability problems.
5.1.6 Electronic Handwheels & Jogstick
There are 2 electronic handwheels on the lathes and 1 jogstick to move the carriage
quickly into position. Each unit is replaced as an assembly. Disconnect the handwheels
and jogstick from the apron cable. (See Figure 41, Section 7)
5.1.7 Cable Routing in Electrics Box
Whenever you replace a cable or reroute a cable it is very important to keep the power
cables and logic cables separated from each other. The power cables consist of the (2)
110 volt servo motor cables and (4) 110-volt power cables for the pendant, spindle motor
fan, coolant pump, and lube pump. The logic cables are used to carry signals between
modules, handwheels, encoders, etc. Mixing of the power and logic cables may cause
noise from the power cables to interrupt the signals in the logic cables. This can lead to
intermittent axis faults or repeatability problems.
5.1.8 Spindle Drive Belt Replacement (See Figure 14)
The spindle drive motor is located inside the base pedestal, underneath the headstock
gearbox. Access is gained by opening the upper door on the headstock and removing
the lower access panel on the pedestal. When removing the belt, loosen nut “G” and
advance nut “H” until the belt has sufficient slack to be removed from the pulleys.
When installing the belt, retract nut “H” and tighten nut “G”. Initially, tension the belt
such that there is no slippage when the lathe is started at its maximum speed.
Belt tension should be checked frequently during the first days of operation, and
periodically thereafter. Keep the pulleys and belt clean and free of any foreign material
to ensure long life and maximum traction.
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