Safety Feature; System Design - REHOBOT PME70 Series Gebrauchanweisung

Thank you for the faith you have shown in us by choosing a
REHOBOT product. REHOBOT stands for products of high
quality and it is our hope that you will be able to use this product
for many years.
To avoid functional disturbances, we recommend that you read
these instructions thoroughly before using the product.
Technical description (Fig. 1)
Max. working pressure:
Capacity, low pressure:
PME70-2030
PME70-4100
PME70-4200
Capacity, high pressure:
PME70-2030
PME70-4100
PME70-4200
Total oil capacity:
PME70-2030
PME70-4100
PME70-4200
Effective oil capacity:
PME70-2030
PME70-4100
PME70-4200
Motor:
PME70-2030
phase
PME70-4100
phase
PME70-4200
phase
Weight incl. oil:
PME70-2030AP
PME70-2030ADV
PME70-2030MRV
PME70-2030MLS
PME70-2030MLD
PME70-2030SS
PME70-2030SD
PME70-4100AP
PME70-4100MLS
PME70-4100MLD
PME70-4100SS
PME70-4100SD
PME70-4200AP
PME70-4200MLS
PME70-4200MLD
PME70-4200SS
PME70-4200SD
Hydraulic oil grade: ISO VG 10/ISO VG32 or equivalent
All pumps have a two-stage function with automatic switching
between high and low pressure at around 1.5–6 MPa.
The low pressure unit is a gear pump that delivers a high flow
rate up to the switching pressure. The high pressure unit con-
sists of one or two piston pumps.
The pump is available in a number of different versions, as listed
below. The rating plate (Fig. 2) tells you which version you have.
AP- Adapter plate with pressure and return connections.
Intended for use with external valve.
ADV- Automatic release valve. The oil returns to the tank
when the motor is switched off (Fig. 3.a).
MRV-
Manual release valve. Used when you want to
70 MPa (700 bar, 10150 psi)
2.7 l/min (122 in
3
8.0 l/min (488 in
3
8.0 l/min (488 in
3
0.3 l/min (18.3 in
1.6 l/min (61 in /min)
3
1.6 l/min (61 in /min)
3
4.5 l (244 in )
3
12 l (732 in )
3
24 l (1465 in )
3
3.2 l (183 in )
3
10.0 l (610 in )
3
20.0 l (1220 in )
3
230 V, 0.55 kW, single-
400 V, 2.2 kW, three-
400 V, 2.2 kW, three-
22 kg (48.5 lbs)
22 kg (48.5 lbs)
22 kg (48.5 lbs)
23 kg (50.7 lbs)
23 kg (50.7 lbs)
25 kg (55.0 lbs)
25 kg (55.0 lbs)
45 kg (99.2 lbs)
46 kg (101.4 lbs)
46 kg (101.4 lbs)
49 kg (108.0 lbs)
49 kg (108.0 lbs)
62 kg (136.7 lbs)
63 kg (138.9 lbs)
63 kg (138.9 lbs)
66 kg (145.5 lbs)
66 kg (145.5 lbs)
maintain pressure for a longer period and control the
rate of lowering. (Fig. 3.a).
MLS- Lever valve for single-action tools (Fig. 3.b).
MLD-
Lever valve for double-action tools (Fig. 3.b).
SS- Electrically operated valve for single-action tools (Fig.
3.c).
SD- Electrically operated valve for double-action tools (Fig. 3.c).

Safety feature

/min)
/min) The pump is equipped with a built-in safety valve that prevents
/min) connected tools from overloading. The safety valve is set at the
factory to a maximum working pressure of 70 MPa (700 bar,
/min) 10150 psi).
3

System design

When you plan a hydraulic system always choose products that
are suitable for the chosen application. Check product limita-
tions with regard to pressure range, lifting capacity and con-
nection options. The maximum working pressure of the system
must not exceed the maximum working pressure of any product
that is included in the system.
We recommend the use of a pressure gauge to give an accura-
te indication of the working pressure of each hydraulic system.
Make sure that all hydraulic hoses, couplings, etc., are connec-
ted to the correct connection port (pressure or return connec-
tion) on the pump, cylinder, valve or other hydraulic component.
Installation
Electrical connection
PME70-2030: The pump is supplied with a two-metre power
cord and earthed plug. If any other connection is required
please refer to the schematic installation diagram in figures 4.a
and 4.b.
PME70-4100/4200: The pump is supplied with a two-metre
power cord. Power cords are marked as shown in Fig. 4.c.
PME70-SS/SD, connecting the controller: In order to operate
SS/SD pumps you must first install a controller. Controller
TRC230-24 is installed as shown in Fig. 5.a (for
PME70-2030) or Fig. 5.b (for PME70-4100/4200).
•
arrow on motor).
•
a
Connecting the foot pedal, PME70-2030ADV/MRV
The foot pedal is connected to the connection box as shown in
Fig. 6. NOTE! Make sure that there are no kinks in the air hose
that could cause a blockage.
Fitting the bleed plug
Before using the pump the transport plug (Fig. 10, item B) must
be removed and replaced with the bleed plug that is supplied
with the pump.
Connecting the hydraulic hose (Fig. 7)
All connection ports have G 1/4" threads. The connection ports
are marked as follows:
11
Check that the motor turns clockwise (see
Electrical installation must be carried out by
qualified electrician.