Instructions

Maintenance and servicing
26
8 Maintenance and servicing
Observe the safety instructions in Ch. Safety, from page 6 on.
Information regarding tightening torques for screws and nuts can be found
in Ch. Technical data, page 11.
Maintenance and servicing of the vibrators may only be performed by reg-
ularly trained, authorised and qualified personnel. Work on the electrical
system may only be carried out by a qualified electrician.
The qualified personnel has to work exclusively with tools suitable for the
application.
In the case of unauthorised intervention in the NEA/NEG there is no longer
any warranty claim.
Before all maintenance and servicing work the NEA/NEG must be safely
disconnected from the electrical mains. The procedure is as follows:
1. Switch off NEA/NEG.
2. Secure against unintentional switching on.
3. Determine that NEA/NEG are voltage free.
4. Earth and short-circuit.
5. Cover and fence off neighbouring live parts.
Interventions in the NEA/NEG, such as lubricating/changing of bear-
ings or opening the terminal box, must not be performed in potentially ex-
plosive atmospheres.
When operating in a potentially explosive dust atmosphere, the opera-
tor must regularly check the condition of the bearings and the duration of
operation of the vibrators. Damaged bearings or bearings whose service
life has been reached, must be replaced immediately. Alternatively, the
vibrators can also be sent to Netter Vibration for replacement of the bear-
ings.
Maintenance of the NEA/NEG must be carried out as follows:
Interval
Action
If required (depend-
ing on operating
conditions)
Clean the NEA/NEG regularly with a wet cloth to remove dust
deposits.
After one hour op-
eration after initial
start-up
Check screw connections and retighten if necessary.
Every 1000 operat-
ing hours
NEA/NEG from housing size 130 up, with speeds > 3000 rpm:
lubricate bearing with grease of the type KLUEBER
Isoflex NBU 15.
Every 5000 operat-
ing hours
NEA/NEG from housing size 130 up, with speeds < 3000 rpm:
replace the grease of the roller bearings completely, with grease
of the type KLUEBER Staburags NBU 8.
Technical data
Expertise and
regulations
Maintenance
plan