Chapter 1
4
UM10350_PCNC770_Manual_0916A
Preface
⢠Chips and dust from certain materials (e.g., magnesium) can be îammable. Fine dust from
normally non-îammable materials may be îammable or even explosive.
⢠Chips, dust, and vapors from certain materials can be toxic. Always check the Materials Safety
Data Sheet (MSDS) for each material.
IMPORTANT: It is the responsibility of the employer/operator to provide and ensure point of operaîon
safeguarding per the following:
⢠OSHA 1910.212 â General Requirements for All Machines
⢠OSHA 1910.212 â Milling Machines, point of operaîon safeguarding
⢠ANSI B11.22-2002 Safety Requirements for Turning Centers and Automaîc Numerically
Controlled Turning Machines
⢠ANSI B11.TR3-2000 Risk Assessment and Risk Reducîon â A Guideline to Esîmate, Evaluate,
and Reduce Risks Associated with Machine Tools
⢠Safety Requirements for Construcîon, Care, and Use of Drilling, Milling and Boring Machines
(ANSI B11.8-1983). Available from American Naîonal Standards Insîtute, 1430 Broadway,
New York, New York 10018
⢠Concepts and Techniques of Machine Safeguarding (OSHA Publicaîon Number 3067).
Available from The Publicaîon Oî¸ce â OSHA, U.S. Department of Labor, 200 Consîtuîon
Avenue, NW, Washington, DC 20210
Electrical Safety
WARNING! Electrical Shock Hazard: Be sure to power oîŤ machine before making any electrical
modiîŽcaîons. Failure to do so may result in serious injury or death.
Input Power: The PCNC 770 has one 115 V power input which is capable of delivering lethal electrical
shocks. Care should be exercised when working inside the electrical cabinet.
Grounding: The power input must be grounded. Do not assume during installaîon that a wall outlet
is properly grounded. Check conînuity between the machine frame and true earth ground (metal
water pipe or similar) to ensure a good ground connecîon.
Ground Fault Interrupter: A Ground Fault Interrupter or GFI (also known as a Residual Current
Circuit Breaker or RCCB) outlet must not be used to supply power to the 115 VAC power input as it
will interfere with the spindle-drive electronics.
Electrical Cabinet: Never operate the mill with the electrical cabinet open. Never allow the coolant
pump to operate with the electrical cabinet open. Do not allow the coolant system to îow coolant
directly at the electrical cabinet or the operator panel. Neither the electrical cabinet nor the operator
panel controls are hermeîcally sealed against liquids.
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