Hypertherm Powermax 65 - Page 134

TroubleshooTing and sysTem TesTs
5-8 powermax 65/85 Service Manual
DANGER
ELECTRICSHOCKCANKILL
• Turnoffthepowerandremovetheinputpowerplugfromitsreceptaclebeforeremoving
the cover from the power supply. If the power supply is connected directly to a line
disconnect box, switch the line disconnect to OFF (O). In the U.S., use a “lock-out / tag-
out” procedure until the service or maintenance work is complete. In other countries,
follow appropriate national or local safety procedures.
• Donottouchliveelectricalparts!Ifpowerisrequiredforservicing,useextremecaution
when working near live electrical circuits. Dangerous voltages exist inside the power
supply that can cause serious injury or death.
• Donotattempttorepairthepowerboardorcontrolboard.Donotcutawayorremoveany
protective conformal coating from either board. To do so will risk a short circuit between
the AC input circuit and the output circuit and may result in serious injury or death.
HOT PARTS CAN CAUSE SEVERE BURNS
• Allowthepowersupplytocoolbeforeservicing.
MOVING BLADES CAN CAUSE INJURY
• Keephandsawayfrommovingparts.
STATIC ELECTRICITY CAN DAMAGE CIRCUIT BOARDS
• PutonagroundedwriststrapbeforehandlingPCboards.