
3
3 Pump Preparation
3.1 Check the condition of the bearing assembly and axial shaft
movement.
3.1.1 Checkradialshaftmovementwithadialindicatorbyforcing
theshaftupanddownandobservethemovementofthe
dial indicator. Replace or repair bearing assembly if the
movementisgreaterthanthemanufacturer'sspecications
or 0.381 mm (0.015 inch).
3.1.2 Shaftrun-outshouldbelessthan0.127mm(0.005inch).
Turntheshaft360degreesandobservethemovement
ofthedialindicator.SeeFigure1.
Radial Shaft Movement Figure1
0.381 mm
(0.015 inch)
Maximum
Axial Shaft Movement Figure2
3.1.3 Axialshaftmovementmustbelessthan0.381mm
(0.015inch).Adjustthebearingcovershimthickness
accordingtothemanufacturer'sinstructions.Ifspring
loadedsphericalthrustbearingsareutilized,itmaybe
necessary to machine the gasket surface of the bearing
coverinlieuofaddingshims.SeeFigure2.
0.381 mm
(0.015 inch)
Maximum
Komentáře k této Příručce