Proper Use Of Machine Guarding; Dead Man Switch - Haas TL Series Training Manual

Proper Use of Machine Guarding

The Toolroom Series of lathes comes equipped as an open machine, much like that of a manual
lathe. The handwheels, chuck, tailstock and toolpost are all exposed and in an open
environment. Extreme concern should be used when the machine is moving in ANY mode of
operation, but especially in CNC mode. The handwheels will be turning, and it is possible for
loose clothing, hair, etc to get caught within the moving parts of the machine.
Also, extreme care should be taken when around the chuck and part as it turns. The main motor
of the machine has a large amount of power, and can be dangerous. Extreme care should be
taken to avoid a collision between any tooling or the tool-post and the chuck. It is possible to do
exactly that.
In any event, all TL series machines come either equipped with a hinged shield that surrounds
the chuck, or a complete set of sheet metal that encloses the machine and the machine should
not be run with any guards open.
In the current version of the TL series of software, it is impossible to run in either manual or CNC
modes with the guarding open. The setting on the control may be changed, but changing this
setting rests all responsibility on the operator and or the owner s of the machine. Neither Haas,
Productivity, nor any individuals of either company can be responsible for bypassing ANY safety
settings on the machine.

Dead Man Switch

Located on the right hand side of the Haas control, with a coiled cord, is a Dead-Man Switch .
Anytime a command is given to the control, where-as it is by MDI mode, Manual Mode, or thru
full CNC Mode, and this command generates machine movement (axis, spindle, etc .) both the
Dead Man Switch and the Cycle Start Button will need to be held at the same time. This is a
requirement of OSHA to be complacent with their standards for safe operation on any machine
that has automation. Other words, a two handed start I needed to start any function of the
machine.
Productivity Inc Haas CNC TL Series Lathe Operator Manual Page 28