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Replace the motor if necessary. Do not lubricate the motor or the gears. When reinstalling the motor
gently turn the motor while inserting so that the gear on the motor meshes with the gears under the drive
gear cover and the small plastic bulge engages one of the slots on the motor housing. Reconnect the
motor plug to the two pronged jack on the lower left hand side of the PC board. If motor will not easily
engage with drive gear when reinstalling, lift and slightly rotate motor before reinserting.
Replace the valve cover. After completing any valve maintenance, press and hold NEXT and REGEN
buttons for 3 seconds or unplug power source jack (black wire) and plug back in. This resets the
electronics and establishes the service piston position. The display should flash all wording, then flash
the software version and the cycle number, (e.g. 164) and then reset the valve to the service position.
DRIVE CAP ASSEMBLY, MAIN PISTON AND REGENERANT PISTON
The drive assembly must be removed to access the drive cap assembly. The drive cap assembly must
be removed to access the piston(s). The drive cap assembly is threaded into the control valve body and
seals with an o-ring. To remove the drive cap assembly use the Service Wrench, V3193, or insert a ˘"
to
5
/
16"
flat bladed screwdriver into one of the slots around the top 2" of the drive cap assembly so it
engages the notches molded into the drive back plate around the top 2" of the piston cavity. See Figure
5. The notches are visible through the holes. Lever the screwdriver so the drive cap assembly turns
counter clockwise. Once loosened unscrew the drive cap assembly by hand and pull straight out.
figure 5
The drive cap assembly contains the drive cap, the main drive gear, drive cap spline, piston rod and
various other parts that should not be dissembled in the field. The only replaceable part on the drive cap
assembly is the o-ring. Attached to the drive cap assembly is the main piston and if a regenerant is
used, a regenerant piston.
Summary of Contents for FUSION2 F Series
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