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11 Maintenance
11.5.5 Cartridge Adsorption Filter Maintenance
Observe safety regulations concerning the handling of solvent (see Point 2).
You must replace the cartridge when the pressure reaches 1.8 bar.
When changing the cartridge, separate the cartridge filter (7) from the economy filter (6) by setting:
Ball valve (1) open
Ball valves (2), (3), (4) closed
Sequence for the rest of the work:
- Open ball valve (4), drain filter sufficiently (over night or weekend)
The filter vents automatically over ball valve (5).
- (On the next day) Check whether the ball valve (4) is still open, loosen the tension clip on the
filter housing and open the housing (7)
- Unscrew the thumb screw and replace the cartridge (if necessary, replace the sealing disc) and
tighten the thumb screw again
- Check that the housing gasket sits correctly (replace gasket if necessary).
- Close the housing, mount the tension clip and then close ball valve (4) on the filter drain.
- Check the filter for leaks.
Fill the cartridge filter with solvent during the next cycle.
Do this by closing ball valve (1) and opening ball valves (2) and (3).
Then either run the filtration over the cartridge filter to the end or separate the cartridge filter from the
economy filter again.
Dispose of used filter cartridges as special waste in a way that avoids emissions!
11.5.6 Distillation Maintenance
You must strip the still at the end of each workday.
Caution
Attention:
Because of the hot surfaces, there is a burn hazard on
the
condenser and still (sight-glass, distillation opening).
Sequence of the maintenance work:
- If you cannot see any flowing solvent condensate in the water separator sight-glass, start
distillation maintenance program P36.
- Press the STOP button when the horn sounds at the end of the program.
On machines with an emission-free still rake out system, the distillation residue was automatically
pumped into the disposal vessel. The maintenance is complete.
On machines without an emission-free still rake out system, you must perform additional maintenance
work.
P12
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