wdchyd
Elite Member
On just about every pump install, they tell you to flood the pump and rotate it slowly until all the air is bled out. Therefore, the purpose of the air bleed tube.
Though this is preferred in all pump install/reinstall.....it's mostly important on piston pumps to fill the case drain port on the main housing during new or rebuild start-up......it is not necessary to perform this priming once the pump is already been in use in a piston pump
Does this unit use piston pumps for hydrostatic drive?