wc_tx003253gb_FM10.fm
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Operation P 35A
4.9 Exciter Adjustment
Overview
Proper operation of the screed produces a creamy liquid around the blade during
strike-off. If a creamy liquid does not form at the standard throttle range of one-half
to three-quarters speed (6000–7000 rpm), or with slight speed increases, then
adjust the exciter.
Procedure
Perform the procedure below to adjust the exciter.
1. Remove the 4 screws (a) mounting the blade to the power unit.
2. Remove the 3 screws mounting the eccentric housing (b).
3. Using a 1/4-inch Allen wrench, loosen the screw (c) holding the adjustable
eccentric weight in place.
4. The screed eccentric is preset at the factory to Position 2 as shown. Rotate the
exciter to the right for less vibration, or to the left for more vibration.
Note: The maximum vibration exciter setting is Position 1. The minimum exciter
vibration setting is Position 3.
5. Reassemble components and tighten all hardware.