Repair manual

22
Fuel supply
Regulation!
• When laying fuel lines and installing an additional fuel tank,
§§45 and 46 StVZO (regulations governing the registration
of motor vehicles) must be adhered to.
Excerpt from §§45 and 46 StVZO:
- Fuel tanks may not be contained in passenger
compartments or driver‘s cabs of buses.
They must be positioned in such a way that in the event of
a fire the exits are not directly endangered.
- Fuel lines may not be contained in compartments or
driver‘s cabs of buses.
Danger of fire, explosions and poisoning!
• When working on the fuel supply, shut down the vehicle
engine and the HYDRONIC.
• Avoid naked flames while handling fuel.
• Do not smoke. This applies also where fuel can be detected
only by its characteristic smell.
• Do not breathe in fuel vapour.
3 / Installation
Drawing 17
Important!
• Secure all connections on fuel hoses with clips.
• Use connecting hoses (approx. 50 mm long) when
connecting up fuel pipes and secure with clips.
• Cut fuel hoses and pipes to length only using a sharp knife.
Cuts must not be pressed in or have any burr.
• Exhaust pipes must be securely held in position (with a
recommended standard distance 50 cm) in order to avoid
damage and / or noise during vibration.
• Lay the fuel lines in such a way that twisting movements of
the vehicle and movements of the engine and similar cannot
have any adverse effect on durability.
• Fuel lines must be protected against mechanical damage.
• Fuel carrying parts must be protected against heat arising
due to malfunctions.
• Fuel lines must never be laid or fastened directly next to
exhaust piping for the HYDRONIC or the vehicle engine.
Where lines cross, make sure there is always sufficient
space separating the hot parts, and if necessary apply heat
protection sheets.
• Dripping or vaporizing fuel must not be allowed to collect or
ignite on hot parts or on electric fixtures.
Connection of intake and return pipes to the heater
The fuel is taken from the vehicle fuel tank or from a separate
fuel reservoir.
Any of the normal fuel hoses or pipes used in vehicle
manufacturing, e.g. steel, copper or plastic pipes, can be
used as fuel lines.
Fuel hoses and fuel pipes are available as additional
equipment - see pages 8 and 9 or the Additional Equipment
Catalogue.
Fuel
Please note!
• When operating with one-line systems --->
please consult the manufacturer.