8.7.2 Fuel cooler – External contamination and leak-tightness check
Preconditions
☑
Engine is stopped and starting disabled.
☑
All fuel cooler power sources are disconnected.
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
Hot components/surfaces.
Risk of burns!
• Allow the engine to cool down to below 50 °C before beginning work.
• Wear suitable protective equipment/thermal gloves.
• Avoid unprotected contact with hot surfaces.
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.
Fuel cooler – External contamination and leak-tightness check
Element
Findings
Action
Check fuel cooler and connections
for leakage.
Leakage
Contact Service.
Check housing and fuel cooler
electric motor for dust and foreign
objects.
Dust and/or foreign objects
Clean fan guard with a soft brush.
Clean surface of fuel cooler with a
damp rag.
Clean fuel cooler if heavily conta-
minated (→ Page 211).
210 | Fuel System | MS15039/01E 2018-11
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