MTU MW15406/17E Operating Instructions Manual page 14

Working on electrical/electronic assemblies
Always obtain the permission of the duty supervisor before commencing maintenance or repair work or
switching off any part of the electronic system required to do so.
De-energize the appropriate areas prior to working on assemblies.
Avoid damaging cabling during removal. When reconnecting, ensure that cabling cannot be damaged
during operation by:
• Contact with sharp edges
• Chafing on components
• Contact with hot surfaces.
Do not secure cabling to lines bearing fluids.
Do not use cable ties to secure cabling.
Always use connector pliers to tighten union nuts on connectors.
Subject the device and also the product to appropriate function testing whenever repair work has been
completed. In particular, check the function of the emergency stop feature.
Store spare parts properly prior to replacement, i.e. protect them against moisture in particular. Pack-
age faulty electronic components or assemblies properly before dispatching for repair:
• Moisture-proof
• Shock-proof
• Wrapped in antistatic foil if necessary.
Working with laser equipment
Always wear special laser-protection goggles when working with laser equipment (danger due to in-
tensely focused radiation).
Laser equipment must be fitted with the protective devices necessary for safe operation according to
type and application.
For conducting light-beam procedures and measurement work, only the following laser devices must be
used:
• Laser devices of classes 1, 2 or 3A.
• Laser devices of class 3B, which have maximum output in the visible wavelength range (400 nm to
700 nm), a maximum output of 5 mW, and in which the beam axis and surface are designed to pre-
vent any risk to the eyes.
Measuring component deviations
Workpieces, components and measuring instruments are within specified tolerances at a reference
temperature of 20°C.
14 | Safety | MW15406/17E 2014-05