Help Please. Problem Setting Up Corolla Wiper Position

[Silverb19]

The front wipers recently stopped working on my son in laws 1999 Toyota Corolla. After removing the wiper motor I found that the retaining nut for the wiper mechanism pivot had come off the shaft. I've fitted a new nut but am having problems getting the sweep and parking position set right. The wipers don't sweep far enough and park part way up the windscreen. I followed some instructions which suggested loosening the pivot nut again, turning the wipers on and off and re tighten the nut. Although better, the wipers still park about 1/3 the way up the screen. On a full cycle, the wipers go up about 2/3rds go right down and off the screen at the bottom and then come to rest about 1/3rd of the way up. Does anybody know the correct setting procedure?

Thanks in anticipation.

[Owen1]

Try to loose the nut and move the wipers up a little and tight the nut again. You need that wiper will be all the way up when the motor get to the end of its move