Oil Lubrication System; Oil Change; Type Of Lubricating Oil; Motor Bearings - Grundfos BME Montage- Und Betriebsanleitung

16. Oil lubrication system

The BME and BMET booster modules have an oil lubrication
system for the two ball bearings in the pulley head.
During operation, there must be a continuous flow of oil to the oil
container. Check the flow by looking into the container, see fig.
19.
Oil container
Max. oil level
Min. oil level
Terminal box
Pulley head
Fig. 19 Oil lubrication system

16.1 Oil change

The hydraulic oil should be changed every 2000 operating hours
or every 6 months, whichever comes first. Total quantity of oil:
Approx. 1.5 litres.
During operation, the oil must be changed as follows:
1. Switch off the level switch in the oil container or establish a
time delay of approx. 10 minutes.
2. Open the drain valve. See fig. 19. Oil will now run out of the oil
drain pipe.
3. Close the drain valve when the oil container is almost empty.
4. Fill in new oil up to the maximum level mark on the oil
container.
5. Open the drain valve.
6. Close the drain valve when the oil container is almost empty.
7. Fill in oil up to the maximum level mark on the oil container.
8. Open the drain valve.
9. Close the drain valve when the oil container is almost empty.
10. Fill in oil up to the maximum level mark on the oil container.
Approx. 1.5 litres of hydraulic oil has now been filled into the
container.
11. Check the oil level after 1 to 2 hours of operation and refill, if
required.
The oil has now been changed.
14
Oil cooler
If the oil lubrication system has been dismantled during
repair, the system must be filled as follows:
1. Check that the drain valve is closed. See fig. 19.
2. Fill new oil into the oil container, approx. 0.5 litres, and wait
approx. 10 minutes until the oil level has fallen.
3. Fill in oil up to the maximum level mark on the oil container.
4. Start up the booster module.
The oil level in the oil container will now fall.
5. During operation, fill in oil up to the maximum level mark on
the oil container.
6. Check the oil level after 1 to 2 hours of operation and refill, if
required.
During operation, the oil level in the container must lie
between the minimum and maximum marks.
During inactivity, the oil level in the container may fall below
the minimum mark.
The oil lubrication system is now filled with oil.

16.2 Type of lubricating oil

The oil system is factory-filled with hydraulic oil, type Mobil DTE
24.
Other types of hydraulic oil with a viscosity of 32 can be used.

17. Motor bearings

Under optimum operating conditions, the operating life of the
motor ball bearings is approx. 20,000 operating hours. After that
period, the bearings must be replaced. The new ball bearings
must be filled with grease.
BME and BMET booster modules are factory-fitted with a manual
motor bearing greasing system. For greasing intervals, etc., see
motor nameplate or the installation and operating instructions
supplied with the motor.
Drain valve
Oil drain pipe