
DRUCK
TEMPERATUR
&
Leitenberger GmbH •
Bahnhofstr. 33 • D-72138 Kirchentellinsfurt •
Tel. +49 (0) 7121-90920-0 • Fax +49 (0) 7121-90920-99 •
• www.druck-temperatur.de
GERMANY
DT
www.
-Cal.net
LR
MANUAL
Kalibrier-Handpumpen LPP 700 / LPP 1000
Pressure Test Pumps LPP 700 / LPP 1000
31
7.3 Cleaning
Cleaning the unit.
Keep the system clean and free from spilt oil or water. Wipe out the surfaces as necessary. Do not
use any cleansing solvents or chemicals as they damage transparent reservoir.
Ensure that the reservoir contains sufficient liquid to carry out any calibraons required. If
necessary top up the reservoir with the same liquid that is already being used. Do not mix various
types or brands of liquid in the reservoir.
If the operang liquid in the test pump becomes dirty, a ach a drain to the test connecon and
use the test pump to flush through clean operang liquid.
Wear safety goggles!
Protect eyes from flying parcles and liquid splashes.
8. Faults
If the pressure cannot be generated correctly or if the set pressure does not stay stable, this is
likely to be caused by the incorrectly posioned or selected sealing gaskets. Please also check
wether any adapters used on the unit under test have been ghtened sufficiently to eliminate
leaks.
Before assuming there is a leak in the pressure test pump: First of all, check if the pressure release
valve (5) is closed. It is recommended to pre-fill the test hose. See chapter 6.3.2 point 4.
If the pressure test pump has not been used for a longer period of me, the first li may be
somewhat sluggish. This effect will disappear again during further operaon.
By no means apply any force to the operang elements of the pressure test pump.
WARNING!
Never connect an external pressure supply system to the pressure test pump.
CAUTION!
Never fully screw out (counter-clockwise) the pressure release valve (5).
The sealing ball, placed inside the pump, may war off.