Risk Analysis; Oil Change At High Pressure Pump - Gerus Gerutest NTB5 Bedienungsanleitung

11. Thereafter open the hose on the screw in unit of the injection nozzle and you can remove it
from the injection nozzle.
12. Now you can start again to check other injection nozzles.
13. Should the injection nozzle be defect, that the jet needle needs to be replaced, this can be
done.
a. Open both screws K on the injector body.
b. Turn the injector body 180° (right or left) and tighten with both screws.
c. Now you can open injection nozzle fixed in the injector body with included special
key.
BE CAREFULL: High pressure hose may only be connected or removed by opened

3 Risk analysis

a. Pressure intensified agent pump impeded start incorrect pressure on the high pressure
point through intermittent control of the pressure on the low pressure point.
b. Incorrect absolute pressure (High pressure point) will be excluded by application of an
additional pressure limiting valve in the pressure circulation (low pressure circulation).
c. Leakage or cable link at the high pressure system are not combined with direct healthy risks
for the operator.
d. Cable links cause a breakdown of pressure on the high pressure point.
e. If GERUTEST cannot build the required pressure within short time the device is defect. The
device has to be stopped, otherwise the available oil will be extracted through continuous
operation to the body chamber and will lead to unnecessary fouling.
f. Adequate lubrication of the pump and the supply with Hydraulic-oil will be achieved by
installation of a pump in the oil tank. During pump leakage the working room is protected
through the tank walls of emergent oil.
BE CAREFULL: High pressure pipes may only be detached by unclosed

4 Oil change at high pressure pump

The filling of the device will be carried out by the oil filler neck D.
Minimum-Oil level will be drained by oil level gauge E. When filling the device should be filled ¾,
maximal to bottom edge of oil filler neck.
BE CAREFULL: Only use oils with the following specifications:
Usually the inspection operations oil is pumped from the nozzle tester specimen.
Should an oil change still be necessary, turn oil filler D to the left and remove it. Then with a hose,
which is bringing in the opening nozzle, aspirate the residual oil.
Oil which has been collected in the oil collection container in nozzle tester should not be for re-use
at nozzle testing.
decompression valve B. Display unit F at the same time dropped to 0
decompression valve B! The system must be without any pressure!
oil quality: anti-corrosion oil,
viscosity approx. 13 mm² / s = cSt / 20° C
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