Electrical Fill Level Indicator; Initial Filling And Venting Of The Mdr Lubricant Reservoir - SKF MicroDosage System Assembly Instructions Manual

Assembly instructions

4.3.3 Electrical fill level indicator

See Figure 2
• Connect the electrical fill level switch (1)
according to Figure 7
Electrical fill level switch, Fig. 2
Hydraulic layout
4,5 - 10 bar
4 bar
Wiring diagram
YE
BN
min min max
2
3
1
BK

4.3.4 Initial filling and venting of the MDR lubricant reservoir

See Figure 3
To ensure that the micro-metering unit func-
tions properly, the pressurized lubricant reser-
voir must be vented.
Note
The lubricant reservoir must not be
1
under compressed air during filling.
There must not be any compressed
air connection between the reservoir
and the compressed air supply.
• Shut off the compressed air feed (1), if
connected.
• Close the lubricant stopcock (10).
16 bar
• Remove the screw plug (2) with the
supplied socket wrench (3) (WAF 17) so
that existing pressure can release.
• Remove the screw plug (2).
• Remove the cap (4) of the filler coupling (5).
Page 23
• Connect the filling device (e.g., hand pump)
(6) and fill up to the start of the maximum
level on the sight glass (7).
• Draw the vent hose (8) (internal diameter
4-5 mm) through the socket wrench (3)
(DIN 896, Form B 10x13).
• Place vent hose (8) and socket wrench (3)
on the vent plug (9) (WAF 10).
• Apply open-end wrench (WAF 7) (10) to the
socket wrench (3) and loosen a vent plug (9)
three-quarters of a rotation.
• Actuate filling device (6) until bubble-free oil
discharges from the vent hose (8).
• Tighten vent plug (9).
To prevent the oil from flowing back into the
inside of the reservoir, clamp/close the vent
hose above the level of the socket wrench.
EN