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6.7 How to lay the lubrication lines
When laying the lubrication lines, observe
the following information in order to warrant
trouble-free function of the entire centralized
lubrication system.
Dimension the lubrication line according
to the maximum pressure and the output
volume of the pump unit used. Starting
from the pump unit the main lubrication line
should be laid preferably rising with a pos-
sibility to vent it at the highest point of the
lubrication line system.
Mount the lubricant metering devices at the
end of the main lubrication line in such way
that the outlets of the lubricant metering
devices show upwards. If lubricant metering
devices have to be mounted below the main
lubrication line, then this should not be done
at the end of the main lubrication line.
The tube lines, hoses, shut-off and way
valves, fittings, etc. have to be laid out ac-
cording to the maximum operating pressure
of the annular gear unit, the admissible tem-
peratures and the lubricants to be supplied.
Furthermore, the lubrication line system
must be protected against inadmissibly high
pressure.
Before the assembly thoroughly clean all
components of the lubrication line system
like tube lines, hoses, shut-off and way
valves, fittings, etc. In the lubrication line
system no seals should protrude towards
the inside, as the lubricant flow could be
impeded and contaminations could enter the
lubrication line system.
Lubrication lines shall generally be laid in
such way that there can never be created
air pockets at any point. Avoid changing the
cross sections of the lubrication line from
smaller to larger cross sections in the lu-
bricant flow direction. Design cross section
transitions as smooth as possible.
The lubricant flow in the lubrication lines
should not be impeded by the installation
of sharp elbows, angle valves and check
valves. Provide unavoidable changes of the
cross sections in the lubrication lines with
as smooth transitions as possible. Avoid
sudden changes of direction, if possible.
6. Assembly
