Hydraulic Systems; Priming The Pump - Riello G3R Instructions Pour Installation, Utilisation Et Entretien

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HYDRAULIC SYSTEMS

WARNING:
A filter must be installed on the suction fuel line.
Before starting the burner make sure that the return pipe-line is not clogged: any obstruction
would cause the pump seals to break.
Warning
The pump is supplied for use with a two pipe system. 
For use on a one pipe system, it is necessary to remove the by-pass
screw (A), (see figure).
D5219
H = Difference of level.
L = Max. length of the 
suction line.
I.D.= Internal diameter of the
oil pipes.
D5220
2666
SYSTEM NOT
PERMITTED
meters
IN GERMANY

PRIMING THE PUMP

Loosen the plug of the vacuum gauge (5, fig. 1,
page 1) and wait until the fuel flows out.
L meters
H
I. D.
meters
8 mm
10 mm
0
35
0.5
30
1
25
1.5
20
2
15
3
8
3.5
6
4
L meters
H
I. D.
I.D.
8 mm
10 mm
0.5
10
20
1
20
40
1.5
40
80
2
60
100
The pump vacuum should not exceed a
maximum of 0.4 bar (30 cm Hg).
I.D.
Beyond this limit gas is released from
the oil.
100
Oil lines must be completely airtight.
100
100
The return line should terminate in
90
the oil tank at the same level as the
70
suction line; in this case a non-return
30
valve is not required.
20
When the return line arrives over the
fuel level, a non-return valve must be
used.
This solution however is less safe than
previous one, due to the possibility of
leakage of the valve.
PRIMING THE PUMP
Start the burner and wait for the priming.
Should lock-out occur prior to the arrival
of the fuel, await at least 20 seconds
before repeating the operation.
GB
A
D5199

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