Agilent Technologies Quaternary Pump 1100 Series - Manual (Page 127)

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Repairing the Pump
Exchanging Internal Parts
Exchanging Internal Parts
WA R NI N G The following procedures require opening the main cover of the
quaternary pump. Always ensure the quaternary pump is disconnected
from line power when the main cover is removed. The security lever at
the power input socket prevents that the pump cover is taken off when
line power is still connected.
WA R NI N G To disconnect the quaternary pump from line, unplug the power cord.
The power supply still uses some power, even if the switch on the front
panel is turned off.
WA R NI N G When opening capillary or tube fittings solvents may leak out. Please
observe appropriate safety procedures (for example, goggles, safety
gloves and protective clothing) as described in the material handling
and safety data sheet supplied by the solvent vendor, especially when
toxic or hazardous solvents are used.
N O T E The electronics of the quaternary pump will not allow operation when the top
cover and the top foam are removed. A safety light switch on the main board
will inhibit the operation of the quaternary pump. Always operate the
quaternary pump with the top foam and top covers in place.
C A U T I O N Internal components may be sensitive to electrostatic discharge (ESD).
Always use an ESD kit when handling internal parts.
The procedures in this section describe how to exchange internal parts. You
must remove the quaternary pump from the stack in order to open the main
cover.