MTU 12V4000T94 Operating Instructions Manual page 16

Working with batteries
Observe the safety instructions of the battery manufacturer when working with batteries.
Gases released from the battery are explosive. Avoid sparks and naked flames.
Do not allow electrolyte to come into contact with skin or clothing.
Wear protective clothing, goggles and protective gloves.
Do not place tools on the battery.
Before connecting the cable to the battery, check the battery polarity. Battery pole reversal may lead to
injury through the sudden discharge of acid or bursting of the battery body.
Working on electrical and electronic assemblies
Always obtain the permission of the person in charge before commencing maintenance and 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.
Do not damage cabling during removal work. When reconnecting, ensure that cabling cannot be dam-
aged during operation by:
• Contact with sharp edges
• Chafing on components
• Contact with hot surfaces.
Do not secure cables on lines carrying fluids.
Do not use cable straps to secure cables.
Always use connector pliers to tighten union nuts on connectors.
Subject the device as well as the product to a functional testing on completion of all repair work. In
particular, check the function of the engine 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 devices
When working with laser equipment, always wear special laser-protection goggles (hazard due to heavi-
ly focused radiation).
Laser devices must be equipped with protective devices in accordance with their class and usage to
ensure safe operation.
For conducting light-beam procedures and measurement work, only the following laser devices may be
used:
• Laser devices of classes 1, 2 or 3A.
• Class 3B laser devices:
– which operate in the visible spectral range (400 nm to 700 nm) only
– which have a maximum output of 5 mW
– which are arranged such as to prevent the beam from harming eyesight.
Measuring component deviations
Workpieces, components and measuring equipment are within specified tolerances at a reference tem-
perature of 20 °C.
16 | Safety | MS150096/03E 2015-04