Hydraulic System; Pump; Pump Priming - Riello RLS 190/M MZ Installation, Use And Maintenance Instructions

(A)
PUMP - SUNTEC J7 C
(B)
(C)
A kg/h
B bar
C bar
D cSt
E °C
F bar
G bar
H mm
1 2
10

HYDRAULIC SYSTEM

Key (A)
1 Pump suction
2 Filter

3 Pump

4 Pressure governor
5 Return pipe
6 By-pass screw
7 Pump return
8 Safety solenoid
9 1st stage valve
10 2nd stage valve
11 Filter
M Pressure gauge
V Vacuometer
PUMP (B)
1 - Suction
2 - Return
3 - Pressure gauge attachment G 1/8"
4 - Vacuum meter attachment
5 - Pressure adjustment screw
6 - By-pass screw
A - Min. delivery rate at 12 bar pressure
B - Delivery pressure range
C - Max. suction depression
D - Viscosity range
E - Max light oil temperature
F - Max. suction and return pressure
G - Pressure calibration in the factory
H - Filter mesh width

PUMP PRIMING

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D3006
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-
-
-
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The time required for this operation depends
J7 C
upon the diameter and length of the suction tub-
230
ing. If the pump fails to prime at the first starting
10 - 21
of the burner and the burner locks out, wait
0,45 approx. 15 seconds, reset the burner, and then
repeat the starting operation as often as
2.8 - 200
required.
90
After 5 or 6 starting operations allow 2 or 3 min-
1.5
utes for the transformer to cool.
12
Do not illuminate the UV cell or the burner will
0.17
lock out; the burner should lock out anyway
about 10 seconds after it starts.
D1251
Important: the a.m. operation is possible
because the pump is already full of fuel when it
leaves the factory. If the pump has been
drained, fill it with fuel through the opening on
the vacuum meter prior to starting; otherwise,
the pump will seize. Whenever the length of the
suction piping exceeds 20-30 meters, the supply
line must be filled using a separate pump.
D791
G 1/2"
G 1/2"
G 1/8"
Before starting the burner, make sure that
the tank return line is not clogged.
Obstructions in the line could cause the
sealing organ located on the pump shaft
to break. (The pump leaves the factory with
the by-pass closed).
Also check to make sure that the valves
located on the suction line are open and that
there is sufficient fuel in the tank.
For self-priming to take place, the screw
3)(B) of the pump must be loosened in order
to bleed off the air contained in the suction
line.
Start the burner by closing the control
devices, with switch 1)(C) in the "MAN" posi-
tion and with switch 6)(A)p.4 in the "OIL"
position.
The pump can be considered to be primed
when the light oil starts coming out of the
screw 3)(B).
Stop the burner: switch 1)(C) set to "OFF"
and tighten the screw 3)(B).