Hypertherm HyPrecision 15, Operator'S Manual

Page: 68 / 194

68 HyPrecision15/30/50 Operator Manual 808240
5 – Preventive maintenance
Preventive maintenance
Every shift
Make sure that the emergency stop pushbutton works

If the pump is configured to run remotely and has a motion system (robot or cutting table), the emergency circuits from
the robot or cutting table can be wired in series with the local emergency stop circuit.
The EMERGENCY STOP pushbutton is available on the operation panel.
Do this task when the pump is running.
Press the EMERGENCY STOP pushbutton.
 The control circuit turns off, which causes the pump, primary motor, and intensifier to turn off.
 The bleed-down valve opens and discharges high-pressure water from the system.
 The CONTROLS ON button indicator light turns off.
Examine cords and plugs for deterioration or damage
Do this task when the pump is not running.
1. Examine electrical cords for kinks or damage to the insulation.
2. Examine electrical plugs and other electrical connectors for corrosion or damage.
DANGER
People who maintain and repair this equipment can be injured or killed if hazardous energy is not properly
controlled. Injuries can include burns, cuts, fractures, or electrocution. Turn off electrical power and relieve all
water and hydraulic pressure from the pump before starting maintenance or repairs. Disconnect and lock
out–tag out the electrical main before opening the electrical enclosure or doing maintenance or repair
procedures.
When replacing wiring, use only the same size, type, and color as the original wiring.
Repair or replace parts identified in the preventive maintenance schedule or if the parts show signs of
deterioration, corrosion, or damage.