Table of Contents
Advertisement
Figure 9: Fuel line assembly with vertically mounted additional pump and fuel lift pump mounted in an angle
2.5.1.3
Fuel pipes
When the tank is above the generating set (Figure 7) we
recommend ending the return line on the top of the tank.
When the return is on the top - in case of a leakage the return
line cannot overflow because of siphoning. One will only need a
fuel cock in the fuel supply line. When the tank is below the
generating set (Figure 8) we recommend ending the return line
on the bottom of the tank (A) below the inlet of the supply line.
Both supply and return fuel pipe lines should be appropriate
material and 8 mm outer diameter tubing. The quality of the
tubing of fuel pipes could be submitted to local regulations
depending on the application of the vehicle.
The fuel pipes can be plumbed to the flexible hoses which are
on the generating set and have a connection to fit to 8 mm
pipe. This fuel lines fulfils CE standards and are according to ISO
7840 A2.
It is important to avoid bends in the pipes, as they could trap air
bubbles. The return pipe should never be connected to the
suction pipe. The return line should be of 8 mm diameter and
go straight back via the top to the bottom of the tank. When
the return is too narrow, has too many bents and goes back to
the bottom of the fuel tank, the back-pressure could be too
high. This results in irregular running of the engine. When the
engine runs irregular, one can check if back-pressure is the
problem by disconnecting the return line just outside the
canopy and draining it in a canister. When the engine runs
smooth now, the return piping has to be changed. It could also
help to install a second (electrical 12V) fuel lift pump in the
supply line to increase the pressure.
W-SQ 27 kVA / 25 kW — October 2014 — EN
2.5.1.4
Fuel filters
A fine fuel filter is installed which requires maintenance.
WhisperPower advises to install an extra fuel filter/ water fuel
separator near the fuel tank.
Before starting your generating set for the first time follow the
fuel system bleeding procedure in the user's manual.
2.5.2
Radiator cooling
2.5.2.1
General instructions
The radiator can be mounted below the floor, in the side or on
the roof of the vehicle. Wherever the radiator is mounted the
correct operation of the system depends on the well circulation
of the coolant. A roof mounted radiator brings the most risk for
circulation problems, because air trapped in the radiator or a
low level of the coolant, will immediately affect the cooling
capacity of the radiator. It is recommended to keep the radiator
as close as possible to the engine. The piping should be fitted as
direct as possible.
When the radiator is above the engine, the piping should be
fitted below the top of the radiator (Figure 10). Bends in the
piping, that can trap air bubbles, should be avoided or
ventilated (Figure 11).
INSTALLATION
7
Advertisement
Table of Contents
