MTS Criterion Series 60 - Manual (Page 20)

• You should identify a single control point in your primary electrical supply where complete electrical
isolation can be accomplished. Also, consider that each uninterruptible power supply (UPS) is potentially
an independent (secondary) electrical power source. To determine methods for isolating each UPS as
an electrical supply source, see your vendor-supplied UPS documentation. Before you make contact
with any system circuit, test the circuit with a properly operating circuit tester to ensure that power is
off.
• If your test system is supplied by a hydraulic power unit (HPU) or a facilities hydraulic power unit (FHPU),
you must consider that the hydraulic fluid return lines may be pressurized any time that the HPU is
operating. To view hydraulic schematic circuit details, see the System Documentation CD. Ensure that
you fully understand system supply behavior before you install your lockout/tagout device.
• If your system configuration includes pressure-line accumulators, the lockout/tagout device must be
installed downstream from the accumulators and upstream from the hydraulic service manifold (HSM)
to be effective. Unless you install the lockout/tagout valve in this way, the charged accumulators will
pressurize the line even when the HPU is off and the lockout/tagout valve is closed. Refer to the System
Documentation CD to view hydraulic schematic circuit details. Ensure that you fully understand system
supply behavior before you install your lockout/tagout device.
Site Precautions
Site Precautions
Warning :
The equipment is designed to operate in an environment where precautions have to be taken
to minimize hazards to personnel and the equipment.
Ignoring hazards and failing to take necessary precautions can result in injury or death to
personnel, and damage to equipment.
Do not install or operate the system equipment in a hazardous environment.
Warning :
Hazardous situations or conditions can arise suddenly and without warning at all parts of the
system.
If immediate action is not taken to remove the hazard or remove personnel from the hazard,
serious injury or death can result.
Do not operate the system unless you have full view of the equipment. If operation of the
system takes place in a remote control room (separated from the equipment), it should be
designed so that the operator has full and unobstructed view of the system equipment. Make
sure that ergonomic issues are considered in the layout of the operating area to limit operator
stress and fatigue.
20 | MTS Criterion ™ Series 60
Safety