Mercedes-Benz U 4023, Техническое руководство, Страница: 27 / 121

Optional equipment – engine
Feature
[M55] Fuel preheating, with water separator
• The container consists of a prefilter with heated water
separator. It removes coarse impurities and water fractions
from the fuel upstream of the standard filter.
• Auxiliary heating system to preheat the fuel
• Water storage tank (0.5 l)
[Z0A] Cold climate package
[K7A] Exhaust system, tailpipe vertical
• Exhaust pipe extending up to cab roof on right-hand side of
vehicle
• Stainless steel heat guard
Advantage
• Even low-grade fuel is supplied to the engine free of particulate
matter and water. Avoidance of damage to the injection pumps as a
result of increased water content and dirt
• High operational reliability despite poor fuel quality, unscheduled
maintenance and service costs are avoided
• Enhanced operational reliability at low temperatures, as the
risk of gelling as a result of paraffin separation is reduced
• Problem-free engine start at extremely low outside temperatures
down as low as -26 °C
• Exhaust gases are discharged upwards:
— advantageous during stationary operations (e.g. crane operation)
— no hot exhaust gases close to the ground
• Also prevents corrosion, resulting in longer value retention
Engine Technical Manual
Mercedes-Benz Special Trucks 26