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10 Service / Maintenance
When working on the vibrator it must be isolated from the mains supply. To do so
please proceed as follows:
1. Switch off vibrator.
2. Secure against unintentional switching on.
DISCON-
NECT
3. Determine that the NEA and NEG are voltage-free.
POWER
4. Earth and short-circuit.
SUPPLY
5. Cover and fence off neighbouring live parts.
The following maintenance work has to be carried out at regular intervals by
trained specialized staff with comprehensive knowledge:
Other maintenance and repair work are to be carried out by NetterVibration
exclusively.
Authorised and specialized staff is allowed to perform the following work on the
WARNING
vibrators:
Please observe the safety instructions in chapter 2 when service on the
unit is done.
Retightening:
Screw connections must be checked and, if necessary, retightened after 1 hour
of operation (after initial start-up) and then at regular intervals (normally every
WARNING
month). Pay attention to the specified torque (see chapter 6.1).
Lubrication
The vibrators are equipped with ball bearings. These are lifetime lubricated (per-
IM-
manent lubrication).
PORTANT
The condition of the ball bearings must be regularly checked.
The replacement of damaged bearings or bearings which have reached the end
of their service life can be made by NetterVibration.
DANGER
Service life of bearings
Type
NED 605
NED 5016
NED 50100
NED 50200
NED 50500
NED 601110
NED 601510
a)
Checking of the screw connections
b)
Checking of the ball bearings
c)
Checking of the operating hours (service life of bearings)
d)
Checking of the cable supply line
The adjustment of the unbalance discs including
removal of the unbalance covers.
The electric connection of the supply line.
Service life of
Permanent
lubrication
bearing
[h]
3,000
100,000
20,421
3,951
2,161
938
847
17
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