Hydraulic Systems; Priming The Pump - Riello 40 F20 Installation, Use And Maintenance Instructions

HYDRAULIC SYSTEMS

Warning: before starting the burner make sure that the return pipe-line is not clogged: any obstruc-
tion 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 (2), (see Fig. 7).
D5219
The suction plug 1)(Fig. 7) is made of plastic. Once removed, it must not be used
again.
In single-pipe installations, the plug in the return line 2) must be totally in steel.
WARNING
2401
L meters
H
I. D. I.D.
meters
8 mm 10 mm
0.5 10 20
1 20 40
1.5 40 80
2 60 100

PRIMING THE PUMP

Loosen the plug of the vacuum gauge (5, Fig. 1) and
wait until the fuel flows out.
4
GB
Fig. 7
1
2
D9623