Service Precautions - ESAB Precision Plasmarc Installation, Operation And Maintenance Manual For Residential Installation

SECTION 1
WARNING
!

1.7 Service Precautions

CAUTION
CAUTION
!
Explosion hazard.
Certain molten aluminum-lithium (Al-Li) alloys can Certain molten aluminum-lithium (Al- Certain molten aluminum-lithium (Al- Certain molten aluminum-lithium (Al-
cause explosions when plasma cut OVER water. cause explosions when plasma cut OVER water. cause explosions when plasma cut OVER water. cause explosions when plasma cut OVER water.
Do not plasma cut the following Al- Do not plasma cut the following Al-Li alloys with
Do not plasma cut the following Al- Do not plasma cut the following Al-
water: water:
water: water:
Alithlite (Alcoa) Alithlite (Alcoa)
Alithlite (Alcoa) Alithlite (Alcoa)
Alithally (Alcoa) Alithally (Alcoa)
Alithally (Alcoa) Alithally (Alcoa)
2090 Alloy (Alcoa) 2090 Alloy (Alcoa)
2090 Alloy (Alcoa) 2090 Alloy (Alcoa)
X8090A (Alcoa) X8090A (Alcoa) X8090A (Alcoa) X8090A (Alcoa)
X8092 (Alcoa) X8092 (Alcoa) X8092 (Alcoa) X8092 (Alcoa)
These alloys should only be dry cut on a dry table. These alloys should only be dry cut on a dry table. These alloys should only be dry cut on a dry table. These alloys should only be dry cut on a dry table.
•
DO NOT dry cut over water. DO NOT dry cut over water. DO NOT dry cut over water. DO NOT dry cut over water.
•
Contact your aluminum supplier for additional Contact your aluminum supplier for additional Contact your aluminum supplier for additional Contact your aluminum supplier for additional
•
safety information regarding hazards associated safety information regarding hazards associated safety information regarding hazards associated safety information regarding hazards associated
.
with these alloys with these alloys
with these alloys with these alloys
Establish and adhere to preventive maintenance. A Establish and adhere to preventive maintenance. A Establish and adhere to preventive maintenance. A Establish and adhere to preventive maintenance. A
composite program can be established from composite program can be established from composite program can be established from composite program can be established from
recommended schedules in the instruction literature. recommended schedules in the instruction literature.
recommended schedules in the instruction literature. recommended schedules in the instruction literature.
Avoid leaving test equipment or hand tools on Avoid leaving test equipment or hand tools on Avoid leaving test equipment or hand tools on Avoid leaving test equipment or hand tools on
machine. Severe electrical or mechanical damage machine. Severe electrical or mechanical damage machine. Severe electrical or mechanical damage machine. Severe electrical or mechanical damage
could occur to equipment or machine. could occur to equipment or machine.
could occur to equipment or machine. could occur to equipment or machine.
Extreme caution should be used when probing Extreme caution should be used when probing Extreme caution should be used when probing Extreme caution should be used when probing
circuitry with an oscilloscope or voltmeter. Integrated circuitry with an oscilloscope or voltmeter. Integrated circuitry with an oscilloscope or voltmeter. Integrated circuitry with an oscilloscope or voltmeter. Integrated
circuits are susceptible to over voltage damage. circuits are susceptible to over voltage damage. circuits are susceptible to over voltage damage. circuits are susceptible to over voltage damage.
Power off before using test probes to prevent Power off before using test probes to prevent Power off before using test probes to prevent Power off before using test probes to prevent
accidental shorting of components. accidental shorting of components. accidental shorting of components. accidental shorting of components.
All circuit boards securely seated in sockets, all cables All circuit boards securely seated in sockets, all cables All circuit boards securely seated in sockets, all cables All circuit boards securely seated in sockets, all cables
properly connected, all cabinets closed and locked, all properly connected, all cabinets closed and locked, all properly connected, all cabinets closed and locked, all properly connected, all cabinets closed and locked, all
guards and covers replaced before power is turned guards and covers replaced before power is turned guards and covers replaced before power is turned guards and covers replaced before power is turned
on. on.
on. on.
Never plug or unplug a printed circuit board while Never plug or unplug a printed circuit board while Never plug or unplug a printed circuit board while Never plug or unplug a printed circuit board while
machine power is on. Instantaneous surges of voltage machine power is on. Instantaneous surges of voltage machine power is on. Instantaneous surges of voltage machine power is on. Instantaneous surges of voltage
and current can damage electronic components. and current can damage electronic components. and current can damage electronic components. and current can damage electronic components.
1-8
SAFETY
Li) alloys can Li) alloys can Li) alloys can
Li alloys with
Li alloys with Li alloys with
X8192 (Alcoa) X8192 (Alcoa)
X8192 (Alcoa) X8192 (Alcoa)
Navalite (US Navy) Navalite (US Navy)
Navalite (US Navy) Navalite (US Navy)
Lockalite (Lockheed) Lockalite (Lockheed)
Lockalite (Lockheed) Lockalite (Lockheed)
Kalite (Kaiser) Kalite (Kaiser) Kalite (Kaiser) Kalite (Kaiser)
8091 ( 8091 (Alcan) 8091 ( 8091 ( Alcan) Alcan) Alcan)