12 Maintenance
Maintenance works
Page
12 - 18
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
12.6.7 Vacuum pump
See 3
rd
party documentation of the vacuum pump.
12.6.8 Non-regenerative LMF (optional)
Prerequisites
Observe the safety chapter Safety and the specific safety instructions in chapter Safety
during maintenance work [}12 - 8].
► Replace main valve of the solvent filter.
► Set control pressure to 6bar.
► Replace bypass valve of the solvent filter.
► Eliminate large leak in the pipework.
Replacing the filter media
MBRAUN recommends to replace the filter medium after max. one year. With frequent
use of solvents, an earlier replacement may be necessary.
Preparation
► Provide MBRAUN activated carbon.
► Provide solvent-resistant container that can be sealed.
► Wear personal protective equipment.
Changing the solvent filter medium
► Switch the LMF system into „Bypass-Mode“:Set the valves as follow.:
1 LMF
2 Gas flow to the box
3 Gas flow from the
box
4 Exhaust
► Open Valve 3 (by-
pass).
► Close Valve 1 and 2
to isolate the LMF.
► Adjust Valve 4 to po-
sition ”Closed”.
At the solvent filter: