MTU 20V4000G44F Operating Instructions Manual page 146

8.8.9 Fuel prefilter – Venting
DANGER
Components are moving or rotating.
Risk of crushing, danger of parts of the body being caught or pulled in!
• Operate the engine at low load only. Keep clear of the danger zone of the engine.
WARNING
Fuels are combustible and explosive.
Risk of fire and explosion!
• Avoid open flames, electrical sparks and ignition sources.
• Do not smoke.
• Wear protective clothing, protective gloves, and safety glasses / facial protection.
WARNING
Liquid or gaseous media, e.g. fuel, are poisonous.
Escaping vapors of highly volatile media, e.g. fuel or ether.
Risk of fatal injury through swallowing; risk of poisoning through inhalation; irritation to eyes
and skin!
• Seek medical attention immediately; do not induce vomiting.
• Do not inhale vapors or mist.
• Wear protective clothing, protective gloves, and safety glasses.
• If contact is made with skin, wash off with water and soap.
WARNING
High level of engine noise when the engine is running.
Risk of damage to hearing!
• Wear ear protectors.
WARNING
Fuel in the prefilter can be pressurized.
Risk of injury through spraying fuel!
• Wear protective gloves and eye protectors/safety mask.
• Open screw-coupling slowly.
Preparatory steps
1. Pressure ratios in the fuel prefilter, see (→ Page 134).
• In case of low pressure, drain fuel prefilter according to version A, see (→ Page 146).
• In case of high pressure, drain fuel prefilter according to version B, see (→ Page 147).
2. With the non-switchable fuel prefilter, the engine must be shut down and secured against starting.
3. With the switchable fuel prefilter, the cut-out filter module can be vented during engine operation.
Venting fuel prefilter with low pressure, version A
1. Open fuel supply as necessary.
146 | Fuel Filter | MS15058/01E 2017-05