7
Maintenance
Maintaining the MAS Plus Autosampler
Thermo Scientific
EA IsoLink IRMS System for CNSOH Operating Manual
131
12. Re-install the autosampler front cover.
13. Return to
Analyzer Parameter
window. Restore the operating conditions setting the carrier gas
flow to the initial value.
Replacing the o-rings of the MAS shaft
The shaft of the MAS plus has three conical O-rings (lip seal) that must be replaced when worn-out.
The MAS O-ring Removal tool allows an easier replacement of the internal and middle O-rings into
their relevant seats.
1. Remove the three from the shaft body by using tweezers or a spatula paying attention to not
scratch the shaft.
2. Take the new green O-rings package and the removal tool.
3. Insert the first O-ring into the internal seat of the shaft.
a.
Place one of the three O-ring, with the lip turned inwards, on the conical section of the tool.
Materials Required
Tweezers or spatula
Green O-rings package (set of 3) for MAS Plus shaft (P/N 290 30343)
MAS O-ring Removal Tool (P/N 205 02613)
Rack
O-rings (Lip Seals)
Internal O-ring (Lip Turned Inwards)
Middle O-ring (Lip Turned Inwards)
External O-ring (Lip Turned Outwards)
Internal Seat
Middle Seat
External Seat
Lip Turned Inwards
Lip Turned Outwards
MAS O-ring Removal Tool
