8 Electrical Connection
© Moog GmbH User Manual "D633-A Series" (CA80942-001; Version 1.0, 12/08) 41
8 Electrical Connection
Safety instructions:
Electrical Connection
DANGER
During operation, do not carry out any work, such as e.g.,
mounting or removal, electrical or hydraulic connection,
troubleshooting or servicing, on the valves or the ma-
chine.
Failure to comply with this requirement results in danger due
to:
• Hydraulic fluid squirting out under pressure
• Uncontrolled sequences of motions
• Destruction
• Malfunction
Before working on the valves or the machine, shut down
and switch off the machine without fail and de-energize
and depressurize the machine.
For this purpose, switch off the command signal of the valves
as well as the supply voltage of the connected peripherals,
such as e.g., externally powered transducers or programming
units.
Secure the machine without fail against restarting.
Examples of suitable securing measures:
• Lock the main command device and remove the key
• Attach a warning sign to the master switch
DANGER
Hydraulic fluid squirting out under high pressure can
cause serious personal injuries, burns and fires.
Depressurize all hydraulic lines and accumulators in the hy-
draulic circuit before mounting or removing, electrical or hy-
draulical connection, start-up, troubleshooting or servicing.
WARNING
Only properly qualified and authorized users may work
with and on the valves.
Chapter "2.4 Selection and qualification of personnel",
WARNING
Touching electrically live parts exposes the user/operator
to the risk of:
• Electric shock
• Uncontrolled sequences of motions
• Destruction
• Malfunction
Touching electrically live parts must therefore be avoided!
CAUTION
To provide protection against injuries or other damaging influ-
ences on health, suitable protective measures must be taken if
necessary prior to and when carrying out any work on the
valves or the machine, such as e.g., mounting or removing,
electrical or hydraulic connection, troubleshooting or servicing,
and when handling the valves, accessories, tools or hydraulic
fluids.
Chapter "2.6 Occupational safety and health", page 9
