Application; Description - SKF LAHD 500 Mode D'emploi

1

APPLICATION

The SKF Oil levellers, type LAHD, are designed for automatic adjustment of the
optimal oil lubrication level within a bearing housing, gear box, crank case or
similar oil bath application. It effectively solves the problem of adjusting the correct
oil level during running conditions rather than during stand-still.
Furthermore, it will automatically compensate for oil leakage and offers the
possibility for visual inspection of the oil level. The oil leveller will not compensate if
the oil level is too high.
2

DESCRIPTION

The oil leveller basically consists of two communicating oil reservoirs, one on top
of the other. The lower reservoir is in direct contact with the application and hence
its oil level is the same as the oil level inside the application. Through a ventilation
tube the lower reservoir is in direct contact with the ambient air.
The upper reservoir is an airtight container storing replacement oil.
Through its extended neck, which dips into the oil of the lower reservoir, the two
reservoirs are in direct connection with each other. However oil can only flow from
the upper to the lower reservoir once the oil level in the lower reservoir goes
below the preset level, allowing air to flow through the extended neck to the upper
reservoir.
Upper cover
Upper reservoir
Spring loaded valve
Set of gaskets
Extended neck
Lower reservoir
Oil level lines
SKF LAHD 500-1000
Oil inlet
Assembly drawing oil leveller
s
Ventilation tube
Fixation nuts
Magnetic, drainage plug
Oil inlet
5