SKF MKU Series User Manual

82
EN
5. Functional description
ring line (use the second pressure port P)
and the relief procedure in the centralized
lubrication system must be facilitated using
additional valves (using the return connec-
tion R).
5.6.4 Lubricating cycle sequence
The sequence of a lubrication cycle depends
on the type of piston distributors in use.
Piston distributors are differentiated into
prelubrication distributors and relubrication
distributors. Piston distributors designed as
prelubrication distributors deliver the metered
quantity of lubricant at the same time that
pressure is built up in the lubricant line.
Piston distributors designed as relubrication
distributors supply the metered quantity of
lubricant after the pressure relief procedure
in the lubricant line.
5.6.5 Lubricating cycle of prelubrication
distributor
After the electric motor is switched on, the
lubricant is drawn out of the lubricant
reservoir by the gear pump and fed through
the lubricant line to the prelubrication
distributors via the pressure relief valve and
the pressure regulating valve. The pressure
built up in the centralized lubrication system
meters the lubricant separately for each
lubrication point and feeds it to the consuming
points. After the electric motor is switched
off, the pressure is relieved in the centralized
lubrication system. In this process, the lu-
bricant is moved within the prelubrication
distributor from the spring chamber into the
metering chamber. The centralized lubrica-
tion system is ready for the next lubrication
cycle.
Prelubrication distributor system, Fig. 2
Lubrication
points
Distributor
Gear pump
unit
Pressure switch

SKF MKU Series Specifications

General

Brand	SKF
Model	MKU Series
Category	Water Pump
Language	English