Wuhan Huazhong Numerical Control HNC-18M, Operator'S Manual, Page: 18 / 119

1 Introduction
4
c) Spindle and Auxiliary Operation keys:
These nine keys usually function in Manual
mode. They control spindle, turret tool
selection, coolant and chuck functions.
These functions are activated only when no
program is running.
Details of the keys are shown below:
Coolant Switch key:
This key opens or closes
the coolant flow
Lubrication key:
Turn on the lubrication system
with this key.
Tool lock/unlock:
After pressing this key, the tool
will be release if it is locked before and will be
locked if it is to be replaced in.
Spindle Clockwise Rotation key:
Pressing this
key begins spindle rotation in the clockwise
direction (top of workpiece moves toward operator).
Spindle Stop key:
Stop the spindle rotation by
pressing this key.
Spindle Counter-clockwise Rotation key:
Pressing this key begins spindle rotation in the
counter-clockwise direction (top of workpiece
moves away from operator).