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9. Calculate the DA percentage of actual PU (DA%). It must be equal to or greater
than 80% of the actual PU value noted in Step 6. (DA% = Step 8 Value ÷ Step 6
Value ×100).
10. When the track energy is reduced to 1.7 volts or 0.028 amp, the vane must have
touched the lower roller stop.
Copyright 2019
Drop Away (DA) Current Value
SM 4574F, Rev. 4, March 2019
PV-250 Track Relay
__________
3-6
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