FLOW-TEK FTG SERIES
MANUAL GEAR OPERATOR
Installation, Operation, and Maintenance Manual
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Image 4 - Gear Stem Nut
> Remove the indicator plate by removing the screws that are
securing it to the top of the gear. Check position of gear stem
nut (Image 4). The stem nut is machined with two concentric
squares with a 45 degree offset angle.
> If flats of the stem nut squares are not parrallel/perpendicular
to the valve bore, adjust the position by turning handheel as
needed.
> Once the position of the stem nut is set, drive the adjustment
stop stud by hand until feeling resistance.
> While holding adjustment stop stud with Allen wrench in
position, tighten the counter nut. Do not allow the adjustment
stop stud to move.
> Using the handwheel, turn the valve to be 10-20 degrees
unseated and close again. The gear should stop at set position
where the stem nut squares are parrallel/perpendicular to flow
bore. If not, repeat adjustment steps.
> Repeat these steps for setting the stops for the fully open
position.
4.2
Setting stops with valve on work bench
> Start setting gear stops in the fully open position.
> Loosen counter nut while holding the adjustment stop stud
with Allen wrench (Image 2).
> Loosen the adjustment stop stud by turning counterclockwise.
> Fully open valve: Check position of the ball by looking through
the end of the valve bore. If not fully open, adjust position by
turning handwheel accordingly.
> Once fully open position is set, tighten the adjustment stop
stud by hand until feeling resistance.
> While holding the adjustment stop stud with Allen wrench
in position, tighten the counter hex nut. Do not allow the
adjustment stop stud to move.
