Thermo Scientific Dionex, Operator'S Manual

Page: 141 / 228

10 • Service
Doc. 065250-06 03/2020
129
insert this bent end between the washer and the orange backup seal. Lift
off the washer.
Be careful not to scratch the washer .
3. To remove the old backup seal from the spacer, insert the shaft of the piston
through the center hole in the spacer and then pull out the piston. The seal will
be removed with the piston.
4. To install the new backup seal:
a. Insert the shaft of the piston through
the backup washer.
b. Hold the new backup seal
(P/N 066163) with the grooved side
facing away from the washer. Then,
insert the shaft of the piston through
the seal.
c. Insert the piston into the center hole in
the spacer.
d. Push the piston into the spacer until it
stops and the top of the backup washer
is flush with the spacer.
e. While holding the backup washer in
place with your thumb, slowly remove
the piston.
The backup seal is made of soft plastic. Do not press on the seal with
anything hard or sharp, including your fingernail. If the seal is nicked
or gouged, it will not seal properly and may result in leaks.
Backup
Washer
Paper Clip Tool
Backup
Seal
of backup
Grooved side
seal