HP15 GERUPRESS
Copyright by GERUS Apparatebau GmbH & Co.KG, Engelschalkstraße 16, 86316 Friedberg
1.
Instructions
The GERUPRESS provides high static pressures for using them
in combination with hydraulic tightening device. Because of its
specification the GERUPRESS is not suitable supporting large
delivery ranges under high pressure. Neither the capacity of the
oil pump nor the range of hydraulic oil do not allow operating
under these circumstances. In its specified application, the
GERUPRESS works exclusively with the medium compressed
air.
The function of the GERUPRESS is based on a proportional
working oil pump. The absolute maximum output pressure is
secured by a security valve (adjustable) in the low pressure
circle (cf. risk analysis).
For operating, the compressed air (pressure < 15 bar) have to
be connected to the GERUPRESS, the gauges have to be
checked and the operating lever have to be shift (operating).
Now, the pump starts working until the adjusted value of the
output pressure has been reached.
It is possible to adjust the output pressure by the pressure
limitation valve until either the requested value is pointed on the
gauge or the maximum pressure of 1500 bar is reached.
For set off (high pressure is no longer necessary) the operating
lever have to be shift back in “0”-position. For ventilation of ducts
the manual ventilation valve has to be opened.
Disconnect high pressure tubes only while ventilation valve
open.
2.
Instructions for use
I.
H
OW TO TEST A HIGH PRESSURE PUMP TO SEE
IF IT WORKS
1.) Open the lid
2.) Check if the pressure gauges
A
and
I
are intact and
control the position of the indicators. Both indicators
should be on zero.
3.) Control the oil level (by locking at oil level controller
B
)
4.) If the oil level is too low, fill in oil an follow these
instructions:
4.1. Choose the quality of the oil according to the
instructions on sign
C
.
4.2. Open the oil admission socket
D
to fill in the oil by
turning to the left 180 degrees (180
°
).
4.3. Fill in the oil until the oil level controller
B
indicates
that the tank has been filled up threequarters (¾).
4.4. Now close the oil admission socket
D
by turning it to
the right 180 degrees (180
°
).
5.) Close the pressure relief valve
E
and turn it to the right
as far as it will go.
6.) Now turn lever
F
(=start lever) into position II.
7.) Connect the compressed air-tube to the compressed-air
connection
G
.
BE CAREFULL: never use more than the
maximum of 15 bar!
8.) Pull and turn the pressure control valve
H
to the right as
far as it will go (until you feel a resistance).
9.) Check the air pressure on the pressure gauge
I
(There
should be an air pressure of at least
6 bar).
10.) Put start lever
F
into position I.
11.) The pump starts working and should build up a pressure
of up to 1.500 bar (if it doesn’t, please check the air
pressure).
12.) When the oil pressure gauge
A
shows a pressure of
1.500 bar turn lever
F
back into position II.
13.) The pressure shown on oil pressure gauge
A
shouldn’t
fall. This means that the pump is in working order.
14.) Open the relief valve
E
by turning it to the left.
15.) The pressure shown on oil pressure gauge
A
now drops
to 0 bar.
II. How to work with the high pressure pump
Start again with position 2.) to 7.).
Now pull and turn on the relief valve
H
to get the right oil
pressure:
2 bar air pressure
≈
500 bar oil pressure.
Then connect the high pressure tubes to the hose
connection
K
.
Continue with position 10.) to 15.)
Remove the high pressure tubes from the hose connection
K
when you are finished.
BE CAREFULL: Hydraulic tubes can only be
attached or removed if the
relief valve E is open. The
oil pressure gauge A has
then dropped to 0 bar.
3.
Risk analysis
a) The oil pump is working as pressure translator, thus
improper output pressures cannot be reached because
the lower operating pressure is limited.
b) Improper absolute output pressures will be lock out by a
additional pressure reducing valve in the low pressure
circle.
c) Leaks or duct cracks in the high pressure circle including
no healthy risks for operators.
d) Duct crack cause a breakdown of the output pressure.
e) Is the determined output pressure not available after a
short time, a damage of the GERUPRESS is probably
occurred. In this case, put the gadget out of operation,
disconnect the connect air tubes. Otherwise the gadget
will get dirty by hydraulic oil.
f) Pay attention while closing of the cover. Prohibit
•
damaging (operating level in „1“, cover
cannot be closed)
•
wounding
g) Sufficient lubrication of the oil pump and providing with
hydraulic oil is ensured by mounting the pump into the oil
tank. In case of a pump leakage, the gadget and the
operator is protected by the casing of the tank.
BE CAREFULL: Disconnect
high
pressure
tubes only while ventilation
valve open.
