Operating
Instructions
Initial Installation
2K120/2K121
24
3.7.2.1
Recirculating lubrication for V1/B5
operation
Refer to chapter 3.7.3.2 for the position of the oil
inlets and outlets.
The oil inlet is connected in place of the oil drain
plug.
Oil inlet quantity 1.5 to 2 l/min.
One oil sight glass is removed and replaced with a
screw-in drain pipe (M42x1.5).
If the gearbox is installed in vertical position V3,
the gearbox oil can be supplied both radially and
centrally.
The outlet line should be dimensioned so as to
prevent oil return blockages in the gearbox
(D
i
approx. 20 mm).
3.7.2.2
Recirculating lubrication with heat
exchanger
A heat exchanger is installed in the recirculating
lubrication system to ensure additional
temperature reduction.
3.7.2.3
Recirculating lubrication with
intermediate tank
The tank volume should be at least ten times the
recirculating oil quantity in order to ensure
effective oil cooling.
NOTE
To prevent gearbox damage due to lack of oil, ZF
recommends you install an oil level sensor at the
intermediate tank.
A 60
μ
m filter and a safety non-return valve (1)
must be used at the gearbox oil inlet.
This arrangement ensures continued operation
based on the splash lubrication, see chap. 3.7.1.
Installation example B5
1
