Maintenance And Servicing - NetterVibration NVV Series Operating Instructions Manual

Maintenance and servicing

7 Maintenance and servicing
Observe the safety instructions in chap. Safety, from page 5 on.
To clean the NVV, proceed as follows:
Cleaning
1.
2.
3.
Maintenance of the NVV must be carried out as follows:
Maintenance
plan
Interval
After one hour of opera-
tion after initial start-up
Before each start-up
After every four hours of
operation
Monthly
2
The maintenance intervals depend essentially on the operating conditions,
Maintenance
the service life and how clean the drive medium is.
intervals
Unfiltered compressed air leads to high wear, clogging of the silencer or
complete breakdown of the NVV.
Wear criteria The rotor should be replaced if its length is below
• 109.8 mm for NVV 150,
• 129.7 mm for all other types of NVV.
The vibrator's nosepiece and the vane should be replaced if they show
signs of excessive wear.
Close the supply air opening and the handpiece.
Clean the NVV externally with a jet of water.
Activate the NVV briefly.
Action
Check hose screw connections and hose fittings, retighten if
necessary.
Check hose supply connections for damage, permeability and
kinks. If necessary, clean and remove kinks or replace.
Check the function of the mist lubricator. Refill oil.
Check hose screw connections and hose fittings, retighten if
necessary.
Check the function of the NVV.
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