MTU 12 V 4000 L62FB Operating Instructions Manual page 13

Carry out appropriate cleaning procedures to clean and inspect components requiring special cleanness
(e.g. components carrying oil, fuel, or air).
Always seal connections with caps or covers if a line is removed or opened.
Fit new seals when re-installing lines.
Never bend lines and avoid damaging lines, particularly the fuel lines.
Ensure that all retainers and dampers are installed correctly.
Ensure that O-rings are not installed in a slanted/twisted condition.
Ensure that all fuel injection and pressurized oil lines are installed with enough clearance to prevent contact
with other components. Do not place fuel or oil lines near hot components.
Do not touch elastomeric seals (e.g. Viton sealing rings) with your bare hands if they have a carbonized or
resinous appearance.
Note cooling time for components which are heated for installation or removal (risk of burning).
Pay particular attention to cleanliness at all times.
Remove any accumulation of condensate after assembling chilled components. Coat the components with a
suitable corrosion inhibitor as necessary.
Safety regulations after performing maintenance and repair work
Before barring the engine, make sure that nobody is standing in the danger zone of the product.
Check that all access ports/apertures which have been opened to facilitate working are closed again.
Check that all safety equipment has been installed and that all tools and loose parts have been removed
(especially the barring tool).
Ensure that no unattached parts have been left in/on the product (e.g. including rags and cable straps).
Ensure that the grounding system is properly connected.
Welding work
Welding operations on the product or mounted units are not permitted. Cover the product when welding in
its vicinity.
Before starting welding work:
• Switch off the power supply master switch.
• Disconnect the battery cables or actuate the battery isolating switch.
• Separate the electrical ground of electronic equipment from the ground of the unit.
No other maintenance or repair work must be carried out in the vicinity of the product while welding is in
progress. There is a risk of explosion or fire due to oil vapors or highly flammable fluids and lubricants.
Do not use product as ground terminal.
Never position the welding power supply cable adjacent to, or crossing wiring harnesses of the product. The
welding current can induce interfering voltages in the wiring harnesses which may damage the electrical sys-
tem.
Remove components (e.g. exhaust pipe) from the product before performing necessary welding work.
Hydraulic installation and removal
Check the function and safe operating condition of tools and fixtures to be used. Use only the specified devi-
ces for hydraulic removal/installation procedures.
Observe the max. permissible push-on pressure specified for the equipment.
Do not attempt to bend or apply force to lines which are under pressure.
MS150098/02E 2016-11 | Safety | 13