BJM Pumps PGV220-575T - Manual (Page 18)

18
ASSEMBLING:
Assemble the pump in the reverse sequence of the overhauling with good care
for the following points.
1) Shaft seal (Mechanical Seal)
• The contact surface of each seal ring shall keep right vertical to the
shaft axis.
• The contact surfaces shall be free from dust and foreign matter.
2) Cautions in assembling
• Handle each part/component with good care not to damage it.
• Securely restore o-rings and seal packing’s in their original
positions.
• Replace worn or damaged o-ring and seal packing with new ones.
• Tighten securely bolts and screws with specific tightening torque.
• After assembled, turn the impeller by hand to check its smooth
rotation.
After-operation Maintenance
• When the pump is put in long term rest, operate it under clean water for a
while for internal cleaning. Leaving the pump as is without cleaning would
cause early corrosion of the pump components and finally pump trouble.
• When the pump handled liquid containing solids such as cement slurry,
limestone slurry, etc., adequately clean each component, especially
impeller and shaft seal for complete removal of such adhered solids.
Otherwise, adhesion of solids will interfere with the normal running.