HARBEN CENTURY, Service Manual

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Flowplant Century Pump Manual
xxvii. First push the Counter Balance on to the Shaft, then push the Coupling on to the
Shaft.
xxviii. Fit Drive Cap (56) into the end of the Coupling, locating Pin (110) into the hole in the
Shaft.
xxix. Put a small amount of retaining compound on Cap Screw (102) and tighten it into the
Shaft.
xxx. Re-fit pump as detailed in Para 9 (Removal and Replacement of Pump Head.
4.3.10 Pump Running In
Prior to running in the pump after overhaul or major component replacement, the pump
should be filled with oil to the correct level. Refer to Lubrication Chart (Table 4.2) for details
of recommended oil types and pump oil capacities.
The pump should also be bled of air in accordance with the procedures given in
Sections
3.3.4, 3.3.5.
Note: Check the direction of pump rotation when first switched on .
Run the pump at maximum pressure for the following periods, whilst checking for leaks,
monitoring the flow and checking the results against pump performance data:
a. Off load - 30 minutes
b. 1 /2 max. pressure - 60 minutes
c. Max. pressure - 60 minutes.
The following points should be taken into account when determining maximum pressure to
be used when running in the pump:
Piston Size Maximum Pressure
22.5 mm 700 bar (10000 psi)
25.0 mm 550 bar (8000 psi)
27.5 mm 420 bar (6000 psi)
a. If the pump is being used on a system that has a lower working pressure than
the maximum for the pump, then running in of the pump should be at the lower
pressure.
b. Check the pump Identification Plate for the maximum working pressure of the
pump before commencing the running in test. Some models of pumps have
working pressures lower than stated, in which case running in should be carried
out at the lower pressure.
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