MTU 12 V 4000 G23 Technical Documentation Manual page 14

10
Before use, the tools must be checked at regular intervals (crack test).
Working on electrical/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. Any measures requiring a power
supply are expressly defined as such at the appropriate place in the manual.
Gases released from the battery are explosive. Avoid sparks and naked flames. Do not allow battery
acids to come in contact with skin or clothing. Wear protective goggles. Do not place tools on the
battery. Before connecting the cable to the battery, check battery polarity. Battery pole reversal may lead
to injury through the sudden discharge of acid or bursting of the battery body.
Do not damage wiring during removal work and when reinstalling wiring and ensure that during operation it is
not damaged by contact with sharp objects, by rubbing against other component or by a hot surface.
Do not secure wiring to fluid-carrying lines.
On completion of the maintenance and repair work, any cables which have become loose
must be correctly connected and secured.
On completion of all repair work, the component and system must be subjected to a function check.
Separate testing of the repaired component without system integration is insufficient.
If wires are installed beside mechanical components and there is a risk of chafing, use
cable clamps to properly support the wires.
For this purpose, no cable binders must be used as, during maintenance and / or repair work,
the binders can be removed but not installed a second time.
Spare parts shall be properly stored prior to replacement, i.e. particularly protected against moisture. Defective
electronic components and assemblies must be suitably packed when dispatched for repair, i.e. particularly
protected against moisture and impact and wrapped in antistatic foil if necessary.
Working with laser equipment
When working with laser equipment, always wear special laser-protection goggles.
Laser equipment can generate extremely intensive, concentrated radiation by the effect of stimulated emission
in the range of visible light or in the infrared or ultraviolet spectral range. The photochemical, thermal and
optomechanical effects of the laser can cause damage. The main danger is irreparable damage to the eyes.
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 to 700 nm), a
maximum output of 5 mW, and in which the beam axis and surface are designed to prevent any risk to the eyes.
Operation of electrical equipment
When operating electrical equipment, certain components of this equipment are live.
Noncompliance with the warning instructions given for this equipment may result in
serious injury or damage to property.
M015710/01E 07-02
Safety
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