Instron 4400 Series Operator's Manual page 6

Universal testing system
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Preliminary Pages
Warning
Disconnect the equipment from the electrical power sup-
ply before removing any electrical safety covers or re-
placing fuses. Do not reconnect the power source while
the covers are removed. Refit covers as soon as possible.
Disconnect the equipment from all power supplies be-
fore removing any cover which gives access to rotating
machinery. Do not reconnect any power supply while
the covers are removed unless you are specifically in-
structed to do so in the manual. If the equipment needs
to be operated to perform maintenance tasks with the
covers removed, ensure that all loose clothing, long hair,
etc. is tied back. Refit covers as soon as possible.
Do not disconnect any hydraulic coupling without first
shutting down the hydraulic power supply and discharg-
ing stored pressure to zero. Tie down or otherwise se-
cure all pressurized hoses to prevent movement during
system operation and to prevent the hose from whipping
about in the event of a rupture.
vi
Disconnect the electrical power supply be-
fore removing the covers to electrical equip-
ment.
Disconnect power supplies before remov-
ing the covers to rotating machinery.
Shut down the hydraulic power supply and
discharge hydraulic pressure before discon-
necting any hydraulic fluid coupling.
M10-94400-1

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