MTU 20 V 4000 G23, Technical Publication

Page: 13 / 178

08 Safety
1.4 Safety precautions when working on the engine
Safety precautions when putting the equipment into operation
Prior to initial operation, the product must have been installed correctly and approved according to MTU specifications.
Before putting the device or the system into operation, always ensure
• that all maintenance and repair work is completed
• that all loose components have been removed from rotating parts
• that nobody is standing in the danger zone of moving engine components.
Immediately after putting the device or system into operation, make sure that all control and display
instruments as well as the signaling and alarm systems work properly.
Safety requirements for operators
Procedures for cases of emergency must be practised regularly.
The operator must be familiar with the controls and displays.
The operator must know the consequences of each operation to be carried out.
The operator must carry out the individual operations according to the documentation.
During operation, the displays and monitoring units must be permanently observed with regard to present
operating status, violation of limit values and warning or alarm messages.
The following steps must be taken if a malfunction of the system is recognized or reported by the system:
• notify the supervisory personnel in charge
• analyze the message
• if required, carry out emergency operations e.g. emergency engine stop.
Engine operation
When the engine is running, always wear ear protectors.
Ensure that the engine room is well ventilated.
Mop up any leaked or spilt fluids and lubricants immediately or soak up with a suitable bonding agent.
Exhaust gases from combustion engines are poisonous. Inhalation of poisonous exhaust gases is a health
hazard. The exhaust pipework must be free of leaks and discharge the gases to atmosphere.
During engine operation, do not touch battery terminals, generator terminals or cables.
Inadequate protection of electrical components can lead to electric shocks and serious injuries.
When the engine is running, never release coolant, oil, fuel, compressed-air or hydraulic lines.
Maintenance and repair
Strict adherence to the maintenance and repair schedule is an essential safety factor.
Never carry out maintenance and repair work with the engine running unless expressly instructed to do so.
Lock-out/tag-out the engine to preclude undesired starting. Disconnect the battery when electrical starters are fitted.
Close the main valve on the compressed-air system and vent the compressed air line when air starters are fitted. Post
the "Do Not Start" sign in the operating room or affix it to the controlling device! Persons not involved must keep clear.
Never attempt to rectify faults or carry out repairs if you do not have the necessary experience or special tools
required. Have maintenance and repair work carried out by qualified and authorized personnel only.
Use only proper, calibrated tools.
Do not work on engines or components which are only held by lifting equipment or crane. Always support by
suitable means which conform with the applicable regulations before commencing maintenance or repair work.
Before barring the engine, make sure that nobody is standing in the danger zone. After completing
work on the engine, check that all protective devices/safety guards have been installed and that
all tools and loose parts have been removed from the engine.
Fluids emerging under high pressure can penetrate clothing and skin and may cause serious injury. Before
starting work, relieve pressure in systems and H.P. lines which are to be opened.
Never bend a fuel line and do not install bent lines. Keep fuel injection lines and connections clean.
Always seal connections with caps or covers if a line is removed or opened.
Take care not to damage fuel lines during maintenance and repair work. To tighten the connections when installing
the lines, use the correct tightening torque and ensure that all retainers and dampers are installed correctly.
M015715/00E 06-08 © MTU