Safety Requirements For Maintenance And Repair Work - MTU Gas engine8 V 4000 L62 Operating Instructions Manual

1.5 Safety requirements for maintenance and repair work

Safety requirements for maintenance and repair work
Maintenance and repair work may only be carried out by authorized, qualified personnel.
All work on gas-carrying components must be carried out by authorized, specialized companies.
Installation and connection of the gas supply must only be carried out by a specialized company with
staff that has been trained and authorized for this task.
Before starting maintenance work, allow the engine to cool down (danger of explosion due to vapors),
shut off the gas supply to the engine and activate the emergency stop at the engine interface switch cabi‐
net (MIS) or by turning the keyswitch, if fitted.
Before starting work, relieve pressure in systems and compressed-air lines which are to be opened.
Take special care when removing ventilation or plug screws from engine. Cover the screw or plug with a
rag to prevent fluids escaping under pressure.
Take special care when draining hot fluids ⇒ risk of burning.
When changing the engine oil or working on the fuel system, ensure that the engine room is adequately
ventilated.
Prior to all work, allow the engine / genset to cool down.
Observe maintenance and repair instructions.
Never perform care or maintenance work with the engine running unless expressly instructed to do so.
Lock-out/tag-out the engine to preclude undesired starting.
With electric starter, disconnect the battery.
Close the main valve on the compressed-air system and vent the compressed-air line when air starters
are fitted.
Disconnect the control device from the assembly or plant.
Only use adequate, calibrated tools. During assembly and disassembly, observe the specified tightening
torques.
Carry out work only on assemblies or plants that are secured as specified.
Do not use lines as climbing aids.
Only use fuel lines or fuel system components that have been approved for the application in question.
Keep fuel lines and connections clean.
Always fit caps/covers to close off any openings exposed by removing or opening lines.
Take care to avoid damaging fuel lines in the course of care and maintenance work.
Ensure that all mounts and dampers are correctly installed.
Ensure that all fuel lines and pressurized oil lines have sufficient distance to other components to avoid
contact with them. Do not place fuel or oil lines near hot components.
Do not touch elastomeric seals (e.g. Viton sealing rings) if they have carbonized or resinous appearance.
Note cooling period for components which are heated for installation or removal ⇒ Risk of burning!
When working high on the engine, always use suitable ladders and work platforms. Make sure compo‐
nents are placed on stable surfaces.
Observe special cleanness during maintenance and repair work on the assembly or plant. After comple‐
tion of maintenance and repair work, make sure that no loose objects are in/on the assembly or plant.
Ensure that all personnel is clear of danger zones before turning the engine. Check that all guards have
been reinstalled and that all tools and loose parts have been removed after working on the engine.
MS150032/02E 2012-07 | Safety | 9