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RBU
9.2
Belt transmission
Perform the following belt transmission inspection every 500 hours of operation:
1.
Remove the belt guard, see Figure 1 item 7.
2.
Remove the motor side panel for easy access to the screws that anchor the motor.
3.
Replace worn or damaged belts and pulleys.
4.
Check the tension of the belt transmission and adjust if required.
Use 'Table 9-1: Belt tension' as a guide for force F as shown in Figure 8:
Table 9-1: Belt tension
RBU
Hz
New belts F(N)
Used belts F(N)
5.
Put back the motor side panel.
6.
Put back the belt guard.
NOTE!
more tightly tensioned than used belts.
9.3
Oil pump
Perform the following oil pump inspection every 500 hours of operation:
•
Ensure that there is no oil leakage from the pump.
•
Check the oil level.
•
Check that the oil is clean.
9.4
Pump oil change
Remove the panels closest to the pump and the transmission before changing oil.
The first oil change should be made after 500 hours of use and then every 4,000 hours of use. See
the enclosed 'Red card' in the vacuum unit for details regarding oil and oil change. Oil change
must be made on both sides of the pump.
Fill in the back side of the 'Red card' with information after each oil change. Some pumps have
an oil draining kit with a hose which makes the oil change easier, see Figure 6.
NOTE!
Otherwise the entire drain device might loosen the next time the cap is removed. This ruins the
thread seal resulting in oil leakage and the entire drain device must be replaced.
9.5
Internal cleaning
Perform the internal cleaning inspection every 500 hours of operation.
1.
Turn off the unit.
2.
Rotate the pump and motor by hand in both directions.
–
20
All manuals and user guides at all-guides.com
1300
1600
1600E
50–60
35
25
New belts are liable to stretch slightly within the first 50–100 hours of use and are to be
The protection cap must only be tightened by hand after the oil change, see Figure 7.
If the pump and motor is hard to rotate the pump may require internal cleaning. Contact
your local Nederman representative for this service.
2100
2600
2100E
50–60
50
90
70
60
45
2600
60
90
60
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