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PLOW AND VIBRATOR PLATE
Q: How should I determine it is time to replace the Plow?
A: 1. It is no longer straight in the up-down
position. (For-Aft waves are all right but if
there are dips and valleys it will not work
right.)
2. The plow is no longer able to hold the laser
receiver masts vertical.
Q: How should I determine it is time to replace the Vibrator Plate?
A: 1. The bottom plate is worn through.
2. It suffered some sort of catastrophic failure.
3. When string-lining it, it has a frown of more
that 1/4”. (Leading and trailing edges
should be checked.)
4. When string-lining it, it has a smile of 1/8” or
more from end to end. (Leading and
trailing edges should be checked.)
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