Pressure Relief Valve; Without Grease Return; With Grease Return (Optional) - Lincoln Quicklub 203 DC Instructions De Service

User Manual
Operating Instructions

Pressure Relief Valve

Fig. 5-1 Pressure Relief Valve
Pressure Relief Valve
Fig. 5-2 Pressure relief valve with grease return
Fig. 5-3 Fault indication in the case of a blockage
LINCOLN GmbH • Postfach 1263 • D-69183 Walldorf • Tel +49 (6227) 33-0 • Fax +49 (6227) 33-259
Mode of Operation, continuation
644 2b05
657 8b05
658 0b05

... without grease return

IMPORTANT
Each pump element m ust be secured wit h
a pressure relief valve.
The pressure relief valve is not contained
6001 a02
in the scope of supply of the pump.
The pressure relief valve
- limits the pressure build-up in the system.
- opens, if the spe cific overpressure is reached.
- is to be selected according to the requirements to t he
lubricat ion plant (see different opening pressures; 200,
270, 350 ba r).
If lubricant is le aki ng at the pressure rel ief va lve, this indi-
cates that the system is ma lfunctioning.
Despit e existing fault monitoring devices a regular visual
and function control must be ca rried out on t he lubrication
system.

... with grease return (optional)

If the system i s blocked, grease will leak from the pressure
relief valve. This grease quantity is returned to the re servoir
v ia the return line connection (fig. 6-1).
In the case of a blockage in the system, the grease pushe s
out the red pin (arrow, fig. 5-2) at the pressure re lief valve,
thus indicating that there is a fault.
Afterwards the fault has been removed the pin has to be
pressed back to its starting position.
2.1EN-38002-I10
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