Power Soak MX-220-H Owner's Manual - Manual (Page 40)

39
Motor and Pump Assembly
Inspection and Repair of Components
With pump wet end disassembled, clean all parts and check for worn or damaged areas. It
is seldom economical on these pumps to repair damaged or worn parts. Therefore, when a
part is found unusable, it should be replaced.
Casing
Clean and inspect gasket surfaces for damaged areas that would cause leaks. Check
wearing ring surfaces for excessive wear.
Impeller
Check wearing ring surfaces for excess wear and gasket surfaces of impeller hub for
damage. If excessively worn or eroded, the impeller should be replaced.
Adapter
Clean and inspect gasket surfaces. Remove any dirt or scale from mechanical seal cavity.
Check adapter ring for wear and excess clearance.
Shaft Sleeve
Check for any damage to gasket surface on impeller end, O-ring groove on motor end, or
outside diameter where rubber bellow of mechanical seal contacts.
Mechanical Seal
It is not recommended that the mechanical seal be reused unless the pump has never been
run. A mechanical seal is like a gasket in this respect. Using an old one leaves too much
chance of failure to make the gamble worthwhile, considering the usual cost of installing
and removing a pump from it’s system.
Motor or Frame Shaft
Check the shaft for any bent condition by installing the shaft sleeve, clamping a dial
indicator to the motor face and reading runout at center of sleeve while turning shaft by
hand. Maximum allowable runout is .002 inches for proper performance of mechanical