ProMinent Hydro/4 Operating Instructions Manual page 42

Metering pump
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Maintenance
Hydraulic oil change
3
5
6
42
Drain the hydraulic oil
For the double-head versions, perform the following work simultaneously
on both dosing heads.
1.
Set the stroke adjustment dial (1) to "0".
2.
Remove the vent screw (4).
3.
Place an oil trough under the oil drainage plug (6).
4.
Unscrew the oil drainage plug (6) from the power end housing.
5.
Allow the hydraulic oil to run out of the drive.
6.
Place an oil trough under the hydraulic end.
7.
Unscrew the oil drainage stopper (5) out of the hydraulic end.
8.
Allow the hydraulic oil to run out of the hydraulic end.
9.
Screw in the oil drainage plug (6) with a new seal.
10.
Screw in the oil drainage stopper (5) with a new seal.
1
2
4
Fill with hydraulic oil
For the double-head versions, perform the following work simultaneously
on both dosing heads.
WARNING!
Risk of burns due to hot hydraulic oil
The hydraulic oil may become very hot when the pump is
exposed to extensive loading.
When draining oil, avoid contact with the oil running out.
WARNING!
If the pump must be operated using hydraulic oil compatible
with foodstuffs, then only foodsafe hydraulic oil must be
used.
3
1
2
5
6
2
1
4
5
P_HY_0059_SW

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