Pump shaft / sleeve to be clear of knicks & scratches where seal o'ring sits. Stuffing box face to be checked for deep scratches if seal uses o'ring to seal on this surface instead of a gasket.
Seal o'ring to be lubricated prior to seal being installed on pump.
Install seal on shaft & bolt to stuffing box face positioning seal gland Flush Port in most suitable position for piping.
Tighten seal setscrews down onto pump shaft / sleeve. Remove seal setclips prior to start up. After removing setclips visually inspect gap between drive collar & seal gland - should be uniform all way round.