Removing Fuel From Separate Fuel Tank; Fuel Line - Webasto Air Top Evo 40 Installation Instructions Manual

Installing Webasto fuel extractor on fuel delivery unit
1
Fig. 10: Installation position of Webasto fuel extractor
1 Webasto fuel extractor
2 Section of vehicle's fuel delivery unit with hole
3 Intake pipe of Webasto fuel extractor
4 Minimum distance 10 mm
Make sure that the intake pipe of the Webasto fuel extractor
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cannot impair operation of the vehicle's fuel delivery unit with
fuel gauge in any operating mode.
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Make sure that the mounting surface for the Webasto fuel ext-
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ractor is flat and free of burrs.
Clean mounting surface of Webasto fuel extractor.
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In installed position: Maintain a minimum distance of 10 mm
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between the intake pipe and base of the fuel tank or a mini-
mum distance of 20 mm above the base of the fuel delivery
unit.
Observe the safety measures specified by the vehicle manufac-
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turer.
Observe the tightening torque requirements specified by the ve-
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hicle manufacturer.
5.4 Removing fuel from separate fuel
tank
Do not install the fuel filler neck in the vehicle interior.
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Only use a fuel tank that can be closed off with a filler cap.
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Clearly mark the type of fuel to be used on the fuel filler neck.
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5.5

Fuel line

Requirements relating to fuel lines
Use only steel or plastic fuel lines made from light
and temperature-resistant PA12/ETFE, PA12/EFEP,
PA9T/PA12 in accordance with DIN 73378.
Air Top Evo 40 | Air Top Evo 55
90°
2
3
4
Use Webasto-approved fuel lines and genuine Webasto con-
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nectors.
Internal diameter: 2 mm
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Connecting fuel lines
4 3
1 2
Fig. 11: Connections with hose and hose clips
1 Hose clip
2 Fuel line
3 Hose
4 VDA connector
Make sure that the connections are tight.
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Installing fuel lines
Malfunctions caused by gas bubbles and high fuel
temperatures. Gas bubbles caused by the heat from
the engine and high fuel temperatures can cause
malfunctions. during operation.
Install fuel lines in cool areas.
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Webasto recommends using the Webasto Thermo
Test PC Diagnosis to fill the fuel lines before connec-
ting to the heater.
Keep line lengths as short as possible.
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Avoid the fuel lines sagging.
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Secure the fuel lines.
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Protect the fuel lines from damage:
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– Install stone impact guard.
– Fit protectors on sharp edges.
Protect fuel lines from high temperatures (e.g. from exhaust
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pipe):
– Install heat shield if necessary.
– Do not install fuel lines in areas where heat builds up.
Make sure the fuel lines are not damaged.
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2
1
4
3
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