MANN + HUMMEL ProVent
MANN+HUMMEL Industrial Filters
8
4.3 Connecting oil return fitting
Connecting drain line under engine oil level
The oil return fitting (6) is connected to the
engine oil sump with a drain line.
The connection to the engine oil sump is made
below the minimum permissible oil level.
For the ProVent system to function properly,
the minimum distance of the oil level from the
oil return fitting (6) of the ProVent housing must
be at least 350 mm (see Fig. 2).
Fig. 2
Minimum distance from oil level to oil return
fitting
Connecting above oil level
An optionally available non-return valve is
required for this connection version.
The oil return fitting (6) is connected to the
non-return valve with a drain line.
The non-return valve is then connected
approx. 30 to 50 mm above the maximum oil
level of the engine oil sump.
For the ProVent system to function properly,
the minimum distance from the non-return
valve to the oil return fitting (6) of the ProVent
housing must be at least 350 mm (see
Fig. 2).
Any angled positions which occur during
mobile applications, which lead to a
fluctuating oil level, must always be taken into
account.
MANN+HUMMEL always recommends the
use of a non-return valve for all ProVent
installations.