FMC Corporation - Talstar FMC L06 - Manual (Page 25)

Doc No: OMM50000903
Rev: B Page 25 of 65
Subject to contractual terms and conditions to the contrary, this document and all the information contained herein are the confidential and exclusive
property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
6. Using a socket wrench with a long
extension, remove the hex piston nut
(42) from the piston/crosshead rod
(7). This nut secures the piston
assembly to the piston/crosshead rod.
7. Following the hex piston nut (42)
removal, use the FMC piston tool
(A5049) to pull the piston assembly
from the cylinder (39). Insert the FMC
piston tool inside the cylinder until
flush with the face of the slotted piston
retainer nut (43). Twist the tool to
engage and lock the tabs of the tool
inside the mating slots in the retainer
nut.
8. Pull the piston assembly free of the
pump using a combination pulling and
twisting motion.
9. Place the flats on the bottom of the
piston holder (41) in a vice or clamp
securely. Using the FMC piston tool,
unscrew the piston retainer nut (43)
and remove. The piston cup (40) and
piston retainer (44) may now be
removed.