15
3
2
EN
3. Overview/ Functional Description
1
2
3
4
4
3. Overview/ functional description
Legend of Fig. 1
Item Description
1
Metering screw with
1.1 Indicator pin
1.2 Stamp of metering volume
optionally:
0,02 cm
3
/stroke
0,05 cm
3
/stroke
0,10 cm
3
/stroke
2
Lateral O-ring
3
Frontside O-ring
4
Closure screw of supply piston
Overview, Fig. 1
1
1.1
1.2
2
4
3
3.1 Overview: OI-AL-SR metering device
3.2 General system description
see Fig. 2
In general a single-line system consists of the
following components: pump unit (
1
), relief
valve (
2
), main lubrication line (
3
), as well as
pre-lubrication metering devices (OI-AL-SR)
(
4
).
When switching on the pump motor, the
pump supplies lubricant out of its reservoir
to the lubricant outlet. The pump element
connected there meters the lubricant and
continues to supply it via a relief valve to
the main line. Via the main line the lubri-
cant reaches the pre-lubrication metering
devices. There the lubricant is metered and
transported further to the lubrication points.
In case of the OI-AL-SR metering devi-
ces this is done during the pump runtime
(pre-lubrication metering devices).
Upon completion of the pressurization the
pressure relief of the main lubrication feed
line is effected by changing-over the relief
valve. After a successful pressure relief the
pump unit is ready for the next lubrication
cycle.
Single-line centralize
d lubrication system Fig. 2