Hydraulic Circuit Diagram - Riello RLS 810/E FGR Installation, Use And Maintenance Instructions

5.12.6 Hydraulic circuit diagram

V
1
3
20172540
Key (Fig. 23)
1 Pump suction
2 Pump return line and nozzle return line
3 Pump by-pass screw
4 Pump pressure regulator
5 Safety valve
6 Safety valve
7 Nozzle delivery line
8 Nozzle without interception rod
9 Nozzle return line
10 Pressure variator on nozzle return line
11 Pressure variator servomotor
12 Pressure switch on nozzle return line
13 Safety valve on nozzle return line
14 Safety valve on nozzle return line
15 Pressure switch on pump delivery line
B Oil valve group and pressure variator
M Pressure gauges
V Vacuometer connection
20171988
Installation
M
6
15
P
M
4
2
5
14 13
OPERATION
Pre-purging phase:
valves 5), 6), 13) and 14) closed.
Ignition and operation phase:
valves 5), 6), 13) and 14) open.
Stop: All valves closed.
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 vacuometer prior to starting;
WARNING
otherwise, the pump will seize.
Whenever the length of the suction piping ex-
ceeds 20-30 meters, the supply line must be filled
using a separate pump.
26 GB
7 8
9
B
M
10
11
M
12
P
Fig. 23