Riello Gulliver RG5DF - Fuel Supply; Hydraulic Systems

2902
5
GB
3.3 FUEL SUPPLY
The burner is designed to allow entry of the oil supply pipes on either side.
Depending on the oil supply pipes position (to the right or to the left hand side of the burner) the fixing plate
(1) and cable clamp (2) should be reversed, (see fig. 6).
3.4 HYDRAULIC SYSTEMS
➤ It is necessary to install a filter on the fu-
el supply line.
■
The pump is designed to allow working with
two pipes
.
■ In order to obtain one pipe working it is nec-
essary to unscrew the return plug (2),
remove the by-pass screw (3) and then
screw again the plug (2) with a torque of
0.5 Nm.
■
Before starting the burner make sure that
the return pipe-line is not clogged. An
excessive back pressure (Š 1 bar) would
cause the damage of the pump seal, with
subsequent fuel leaks inside the burner.
The pump has a delivery pressure regulation
device (5). Pressure increases if turned in a
clockwise direction, and decreases if turned in
the other direction.
An indication of sensitivity is 1 bar per turn.
The pressure can be regulated in a range of
8 - 15 bar.
Do not loosen the knob (11) and periodically
check that it is firmly fixed, for safety reasons.
D5392
1
1
Fig. 6
2
D5405
Fig. 7
5
4
2
3
6
9
7
10
8
1
1 - Suction line
2 - Return line
3 - By-pass screw
4 - Gauge connection
5 - 2
nd
stage pressure adjuster
6 - Suction gauge connection
7 - 1
st
stage valve
8 - Valve casing assembly
9 - 2
nd
stage valve
10 - Auxiliary pressure test point
11 - Knob
11
PUMP
(see fig. 7)