I
NSTALLATION
,
USE AND MAINTENANCE MANUAL
–
RV360
-
520
R
EV
.
09
21-03-2016
13 / 32
Jurop
SpA
Via Crosera n° 50
33082 Azzano Decimo, PN (Italia)
T
EL
.
+39
0434
636811
F
AX
.
+39
0434
636812
http://www.jurop.it
e-mail: [email protected]
5
4
6
1
3
P
A
B
OUT
IN
DRAINING LINE
3
5
4
6
1
2
•
Fluid
: mineral oil for hydraulic systems in compliance with ISO/DIN.
Temperature
Optimum viscosity ale
Max. viscosity allowed
-20 / +80 °C
12 – 100 cSt
750 cSt
•
Filtration
: class 19/16 contamination according to ISO 4406 to be
obtained with a ßx = 75 filter.
•
Check circuit connections
: they must be applied in the same
rotation direction as that indicated by the arrow on the pump front
conveyor protection.
Pic. 4.10
•
Draining
: connect directly to the tank above the maximum oil
level. Operating without draining line may damage the motor.
•
Distributor
: open-centre distributor in central idle position
(vacuum pump off). It must be equipped with an adjustable
overpressure safety valve.
•
Motor pipeline
: outlet pipe must not be of a smaller diameter than
that of the inlet port. Inlet pipes always have a diameter smaller than
outlet pipes. Choose preferably flexible pipes to avoid vibration
transmission.
• Tank
: with suction pipe and return separated by baffles. If
necessary, use a heat exchanger to avoid oil heating above 70-80°C
and protect it from extreme pressure with a pressure relief valve.
Minimum approximate capacity: as twice as the circulation flow.
Pic. 4.11
1
HDR pump
4
Oil filter
2
Distributor
5 *
Heat exchanger
3
HDR motor
6 *
Safety valve
* optional components
•
Starting-up
: be sure that the system is well cleaned and pour oil
into the tank and into the motor housing (necessary to lubricate the
internal bearings).
• Vent the circuit and adjust the overpressure safety valve to the
lowest possible value.
• Check the oil tank level.
• Increase pressure and rotation speed until operating values are
reached.
5.1.
Starting-up of the pump
Lubrication
• Check oil levels in rear mounted tank.
• In order to choose the most suitable oil, see paragraph 2.7.
Vacuum line
• Open all valves of the vacuum-pressure system.
• Open all gate valves and remove any possible obstacle from the line.
5.2.
Precautions when starting the system
• Check oil levels in gearbox and side mounted tank.
• Check that all protection devices are correctly installed.
• Check that there are no obstacles in the vacuum line.
• Check rotation direction: open all system valves and start running
slowly.
Do not rotate in the wrong direction: this may
damage the vacuum pump. Follow the arrow
indicated on the front flange.
• Check which position of the four-way integrated valve lever allows
vacuum or pressure functioning.
• If the pump has been in storage for a long time: inlet ½ liter of oil in
the pump for an easy cleaning of internal parts.
• Close the valve and increase vacuum rate (or operating pressure).
• Check loading and operating speed for vibrations or unusual
noises.
This vacuum pump is designed to work at
maximum speed, but for longer operating we
recommend the pump be run at working speed
(see par. 2.4).
• To reduce the vacuum rate to 80% max.
• Prepare adequately transmission.
5.3.
Operating precautions
• Run the vacuum pump at a room temperature of -20°C e +40°C.
• Running at continuous duty: see paragraph 2.5.
• Do not make the vacuum pump overheat. Maximum air
temperature on exhaust (or delivery) side: 180°C.
• If maximum temperature allowed is reached, in order to prevent
damages to the internal parts, it is recommended:
-
To reduce the vacuum rate or the working pressure by opening
the venting port;
-
To reduce the pump speed according to list at paragraph 2.6.
5. Start up
