Pentair FLECK 9100 SXT Installer Manual page 66

Installer Manual Fleck 9100 - SXT - Maintenance
9.2.4.4 Replacing the back side seal and spacer cartridge
Valve produced before November 2009
Note
The seal & spacer cartridge for downflow and upflow are different.
Caution
Use only approved silicon grease or soapy water.
No.
Remove the lower piston, see "Replacing the lower piston and/or its front side seal and
A
spacer kit", page 64.
B Using a 8 mm wrench or flat screwdriver, unscrew (1) and remove the end cap (2).
C Remove the sub end plug (3).
D Using a small hook, remove a seal (4).
E Using the puller, remove a spacer (5).
F Repeat D and E for all the seals and spacers.
G Lubricate all seals (4) with approved lubricant only.
H Put back a new seal (4) using the stuffer.
I Put back the new plain spacer (6) using the stuffer.
J Repeat H and I for all the seals and spacers.
K Put back the sub end plug (3).
L Put back the end cap (2) and screw (1) using a 8 mm wrench or flat screwdriver.
Put back the lower piston, see "Replacing the lower piston and/or its front side seal and
M
spacer kit", page 64.
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Operation
Ref. MKT-IM-004 / A - 27.10.2016