71
M12/M15/M18
11. Maintenance 11.
21 Tank sight-glasses:
Semi-annual tank cleaning through the
sight-glass opening. Rinse with program
P50
22 Filter pressure gauge:
Perform filter maintenance weekly
(program P46 or P47).
23 Sight-glass, filter circuit:
If there is insufficient clearing of the
solvent, check the filter disc for damage
resp. run filter maintenance.