Installation, Operation and Maintenance Manual
CD, HL & NC Ranges of Dri-Prime
®
Pumps
30
95-0019-0000 Iss 11
Pump types
CD140M/ CD160M/ CD180M
MA Units
HL110M
CD225
All
Units
HL100M/ HL125MS/ HL150M/ HL150MHD/ HL200M
1)
Heat the bearings detailed below: -
CD140M, CD225, CD250M, HL100M, HL110M, HL125MS, HL150M motor adaptor
Single roller bearing inner race (pump end) and the complete spherical roller bearing (drive end)
CD160M, CD180M, HL150MHD & HL200M motor adaptor; CD225, CD250M, HL100M, HL125MS, HL150M & HL200M
bearing bracket
Single roller bearing inner race (pump end) and two angular contact bearings (drive end)
2)
Once up to temperature, take the appropriate drive end bearing. Slide it or them up hard against the shaft shoulder.
Hold them there for a minimum of 30 seconds. This allows the races to grip the shaft and prevent them from creeping
away from the shoulders during cooling. Let the assembly cool completely. If these are the angular contact bearings,
ensure they are fitted in ‘O’ arrangement, i.e. with the two outer races ‘trapped’ between the balls.
3)
Fit the drive end tab washer and locknut. Prise up at least two tabs to lock the nut in position.
4)
Position the bearing spacer on the shaft.
5)
Take the single roller bearing inner race and slide it up hard against the shaft shoulder. Hold it there for a minimum of
30 seconds to allow the race to grip the shaft and prevent it creeping away from the shoulder during cooling. Let the
assembly cool completely.
6)
Take the single roller bearing outer race and press it into the bearing bracket/motor adaptor at the pump end. Use the
pump end bearing cover, without the lip seal fitted, to press it into its final position.
7)
Pre-pack the spherical roller bearing or the two angular contact bearings with grease.
8)
Lightly grease the bearing rollers and the raceway of the outer race of the single roller bearing.
9)
Position the motor adaptor/bearing bracket with the shaft axis horizontal (unit level). Press the shaft/bearing assembly
into the bearing bracket/motor adaptor. Position the shaft/bearing assembly using the drive-end bearing cover (without
a lip seal).
10) Remove both bearing covers. Fit the pump end bearing tab washer and lock nut. Prise up at least two tabs to lock the
nut in position.
11) Fit a lip seal into each bearing cover. Fit the bearing covers and tighten the retaining screws. Rotate the shaft assembly
– by hand – about a dozen times to ensure free movement.
12) Temporarily fit grease nipples in the motor adaptor or bearing bracket in the grease relief valve positions. Pump grease
in until it is witnessed emerging continuously through both final nipple locations in the bearing covers.
13) Remove both bearing covers. Add a small amount of grease to the internal cavity of the covers, grease the lip seals
and refit.
14) Remove the grease nipples and refit them in the bearing covers. Fit the grease relief valves in their places
