Installation, Operation and Maintenance Manual
CD, HL & NC Ranges of Dri-Prime
®
Pumps
95-0019-0000 Iss 11
27
Pump types
CD300M/ CD400M (Open Coupled)
1)
Remove the pump body and the vacuum pump support plate (if fitted this covers the aperture on top of the bearing
bracket.
2)
Unscrew both the drive end and pump end bearing cover fasteners and remove both covers.
3)
Release the tabs from the pump end lock washer. Lock the shaft against rotation and unscrew and remove the pump
end bearing locknut and tab washer.
4)
Press the shaft and bearing assembly out of the bearing bracket.
5)
Press the internal bearing covers and roller bearing outer race out of the bearing bracket.
6)
Release the tabs from the drive end locknut tab washer and unscrew and remove the locknut and tab washer.
7)
Remove the angular contact bearings and roller bearing inner race from the shaft.
8)
Inspect all parts for damage or wear and replace as necessary. All lip seals and O-rings must be replaced.
Pump types
HL130M/ HL160M/ HL225M/ HL250M/ HL260M
CD300M (Close Coupled)/ CD500M
1)
Remove the grease nipple and extension pipe where they protrude through the mechanical seal adaptor.
2)
Release the nuts on the bolts holding the adaptor to the bearing bracket and remove the fasteners. Remove the
adaptor.
3)
If a close coupling adaptor is fitted then remove the grease nipple and extension pipe where they protrude through the
adaptor. Remove the adaptor.
4)
Unscrew the drive end bearing cover fasteners and remove the bearing cover complete with lip seal. Note that the inner
bearing cover will now be loose on the shaft.
5)
Release the tab washer and remove the bearing locknut.
6)
Extract the shaft and bearing assembly by pressing from the pump end. Take care that the loose inner bearing cover
does not catch on or damage any part of the shaft assembly during this process. Remove the inner bearing cover.
7)
Unscrew the pump end bearing cover fastenings. Note that three of these hold the inner bearing cover in place.
Remove the inner bearing cover and pump end bearing cover.
8)
If necessary, remove the angular contact bearings and the roller bearing inner race from the shaft and press out the
roller bearing outer race from the bearing bracket.
9)
Inspect all parts for damage or wear and replace as necessary. All lip seals and O-rings must be replaced.
