Operation
6 Operation
For pumps in explosion hazard areas (→ ATEX additional
instructions).
6.1 Preparat ions for the initial start-up
6.1.1 Identifying the pump type
Identify the pump type (→ Order data sheet).
Pump types vary e.g. with regard to bearing lubrication,
bearing bracket size, type of shaft sealing and auxiliary
operating systems.
6.1.2 Lubricating the bearings
Pumps with grease-lubricated roller bearings are ready for
operation as delivered.
Filling the bearing bracket with lubrication oil
Only for pumps with oil-lubricated roller bearings.
1
2
Fig. 16 Oil level in sight glass
1 Minimum oil level ⅓ full
2 Maximum oil level ½ full
1. Be certain to use the correct type and at least the mini-
mum amount of lubrication oil for filling the bearing bracket
(→ 9.2.5 Lubricants, Page 42).
2. Open the oil filler plug.
3. Fill bearing bracket with lubrication oil until the oil level is
within the specified limits in the sight glass.
4. Screw in the oil filling plug with its gasket.
5. Check the oil level in the sight glass and adjust if necessary.
6.1.3 Preparing auxiliary operating systems
(if available)
The manufacturer does not accept any liability for damage
arising from the installation or use of a third-party or unap-
proved auxiliary operating system.
Sealing systems
1. Verify that the sealing medium is suitable for mixing with
the pumped medium.
2. Identify the sealing system (→ Order data sheet)
(→ 3.4.1 Sealing systems, Page 12).
3. Install the sealing system (→ Manufacturer's instructions).
4. Make certain that the parameters required for the installed
sealing system are met (→ 9.2.2 Parameters for auxiliary
operating systems, Page 40).
6.1.4 Filling and bleeding
✔ Auxiliary operating systems are ready for operation
WARNING
Risk of injury and poisoning due to hazar dous pumped
media!
Safely collect any emerging pumped med ium and dispose
of it in accordance with environmental rules and require-
ments.
CAUTION
Material damage caused by dry running!
Make certain that the pump is properly filled.
1. Fill the pump and the suction pipe with pumped medium.
2. Open the suction-side armature.
3. Open the pressure-side armature.
4. If available: open auxiliary operating systems and check
the flow rate.
5. Verify that all pipe connections are sealed.
EN – 02 BA-2005.07 NPC series 21
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