HARBEN CENTURY, Service Manual

Page: 62 / 83

Flowplant Century Pump Manual
4.3.8 Renewing Crankcase Components
Once the crankcase has been opened (Para 16) the following major repairs/replacements
can be carried out:
a) Change Float Bearing (13)
–
4.3.8.1
b) Change Bearing (12)
–
4.3.8.2
c) Change Cylinder (25), Piston (26) and Slipper (27)
–
4.3.8.3
d) Change Bearing (11)
–
4.3.8.4
e) Change Oil Seal (81)
–
4.3.8.5
Note:The following procedures must be carried out sequentially. On completion of
repairs/replacement of pump components, the pump should be re-assembled using the
procedure detailed in Para 23.
4.3.8.1
Change float bearing (13)
i. Remove Nuts (86) and Washers (103) to remove Bearing Retainer (9).
ii. Using a press, remove the Float Bearing (13). The Bearing may be pressed out from
either side.
iii. Fit a new Bearing (13). The Bearing may be pressed in from either side, but the Circlip
in the Bearing must face the inside of the Crankcase.
Note: When fitting the Bearing (13), only press on to the outside race and not the
inner race. Dolly(part no 201-011) is available for this purpose.
iv. Press in the Bearing so that 3 mm protrudes through the outside of the Crankcase.
v. Refit Bearing Retainer (9).
vi. Press Bearing fully home so that it locates up against the 'stop' in the Bearing Retainer
(9).
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