Adjusting The Seat Carriage - Rbk Only - Precor UBK13 Service Manual

Vertical upright & recumbent bicycles
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4
Slightly loosen the three 4mm idler pulley bracket mounting bolts. The belt tension cannot be
adjusted if the idler pulley bracket mounting bolts are tightened.
Loosen the adjustment bolt lock nut.
5
6
Turn the adjustment bolt clockwise or counter clockwise as required until the gauge is in the range
of 70 ± 5 pounds.
7
Remove and then replace the belt tension gauge on the primary drive belt. If the belt tension is out
range, repeat steps 5 and 6 until the belt tension is in range. If the belt tension is within range,
continue to the next step.
8
Tighten the three 4mm idler pulley bracket bolts. Note: Do not over tighten the bolts, if the bolts
are over tightened it is possible to damage the mounting hole threads of the generator. If by
chance the threads do become damaged, the idler pulley bracket can be removed and flipped
over 360 degrees and reinstalled. Doing this will allow the use of another set of mounting
holes on the generator.
9
Tighten the adjustment bolt lock nut.
10 Replace the covers.
Adjusting the Seat Carriage -
RBK Only
Perform this procedure if the front to rear movement of the seat is too tight or there is excessive side to
side seat wobble.
1
The end of the adjustment bolts are designed with two flat sides so that an open end wrench can
be used to rotate the bolt. Using a 10mm wrench on the adjust bolt, use a 22mm wrench to loosen
the two lock nuts on the left and right side just enough so the adjust bolt can be turned freely.
2
The seat carriage wheel is mounted on the adjustment bolt, which is offset. The offset bolt enables
the wheel to be tightened or loosened against the seat rail. Perform half of the adjustment using the
right hand adjustment bolt and half of the adjustment using the left hand adjustment bolt. Rotate
the adjust bolt counterclockwise until it just makes contact with the seat rail then turn it an
additional 1⁄8 turn. Hold the 10mm wrench at this position and firmly tighten the lock nut.
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