Kuzma AIR LINE 130401 - Manual (Page 18)

10.0. Troubleshooting:
NOTE: Check our web site for frequently asked questions (FAQ) for some more
answers. See also appendix of this manual.
10.1. Cartridge skips the groove:
Tonearm is not horizontal: check horizontality
Excessive dirt on record: check and clean for small particles stuck in the groove
Inaccurate geometry: check that the cartridge tip follows line
Low tracking force
Moisture or dirt in the bearing: clean and check PVC bottle and Red filters stands
Clean shaft and bearing with alcohol- see # 11
10.2. Cartridge does not cue first groove but runs in:
Tonearm is tilted down toward the centre of the record: adjust horizontal level down.
See above
10.3. Cartridge runs from record outwards:
Tonearm is tilted up towards the edge of the record: adjust horizontal level upwards.
10.4. Compressor cannot generate enough pressure, or runs for longer than normal:
Note: Check that the silver filters drainage system is sealed, as described at build up of the
pressure. Leaking (hiss noise) in the system: check tubes and its connections, silver filters,
and the compressor.
Check working cycle when the arm is operating. The compressor should take two minutes to
build up pressure from 6 to 8- 8.5 bar. It should then cool down for 2 minutes. If the working
cycle is longer or the cooling shorter, there is a leak in the system or a damaged compressor.
When the arm is not operating (valve on the arm closed and arm meter shows no pressure) the
compressor will be on standby and it will switch on occasionally (2-4 times per day). This
also means that there is no leak in the system. If it is switching on every hour or so, there is a
leak in the system and the working cycle might be too long.
Close the valve on the arm and see if the pressure builds into normal cycle from 6 to 8 bars in
less then 2 minutes. Then open the valve on the tonearm and the working cycle should be
around 2 minutes. If it is longer than 3 minutes, then there is a leak in the system. The
working pressure should be 4-4.2 bar. If it is higher readjust.
Close the pressure regulator valve to zero output ( lift up black knob and rotate ACW) and
see if the pressure builds up to 8 bars and the compressor switches off after aprox. 2 minutes.
If not, then the problem is in the compressor. If the pressure build up is normal, then readjust
working pressure back to 4-4.3 bar.
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