1290 Infinity II High-Speed Pumps User Manual 169
8Maintenance
Pump Head Maintenance (Tool Free)
9 Open the pump heads and remove the piston housings
from the pump chambers.
10 Remove the piston by pressing it out of the seal holder
with a finger.
11 Remove the seal holder from the spring housing. 12 Screw the pin of the Seal Handling Device into the pis-
ton seal.
13 Pull out the Seal Handling Device with the piston seal in
a straight movement with only gentle force.
14 Repeat for the other pump chamber.
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