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5.4
5.4
5.4
5.4
TROWEL ARM ADJUSTMENT
TROWEL ARM ADJUSTMENT
TROWEL ARM ADJUSTMENT
TROWEL ARM ADJUSTMENT
If your NXT-90 Power Trowel is experiencing excessive wobble while in use (i.e. the entire
machine is rocking at the same rate that the blades are turning) you may have a bent or
out of alignment trowel arm. Inspect the trowel arms for a distinct bend. If one or more
arms are in fact bent they must be replaced.
If the arms are not bent, then they require adjustment. The optional trowel arm adjustment
fixture allows fast and accurate trowel arm calibration. Refer to the parts catalogue at the
end of this manual for part numbers and ordering information. To calibrate the trowel arms
of your NXT-90:
1.
Remove the finishing blades from your NXT-90.
2.
Remove the spider assembly and remove the four (4) trowel arms from the hub by
loosening the set screw for each one.
3.
On each trowel arm loosen the locking jam nut for each carriage bolt (see Figure
21).
FIGURE 21:
FIGURE 21:
FIGURE 21:
FIGURE 21: TROWEL ARM LIFT ASSEMBLY
4.
Assemble the first trowel arm into the adjustment fixture as shown in Figure 22.
Tighten the retaining bolts as much as possible. Ensure that the upper clamp is
turned to the “46” side over the carriage bolt.
FIGURE 22:
FIGURE 22:
FIGURE 22:
FIGURE 22: TROWEL ARM ADJUSTMENT FIXTURE