DISMANTLING THE TUBULAR HEAT EXCHANGER UNIT FOR CLEANING:
The cleaning cycles are very important as, when efficiently carried out, they negate
the necessity to dismantle the heat exchanger. However, if it is suspected that product
has “burned on” the heating tubes it is a simple procedure to release the appropriate
Tri-clamp fittings and inspect the inner walls of the tubes.
Never totally dismantle the heat exchanger, as it will then be extremely difficult to re-
assemble correctly. The heat exchanger tubes themselves should be kept clamped in
their retaining brackets, and just the curved end pieces removed. It is usually better if
only one pair of the curved end pieces is removed at one time. In this way a single
heat exchanger tube can be examined and if necessary cleaned with a tube brush.
CHANGING THE STATOR ON THE PROGRESSIVE CAVITY FEED PUMP
It may be necessary to periodically change the stator on the progressive cavity feed
pump. This is a simple procedure as follows:
(i) Remove the tri-clamp connector at the pump outlet, and the associated
pipework.
(ii) Unscrew the tri-clamp adaptor on the end of the pump. This will reveal the
end of the pump rotor.
(iii) The pump stator can then be unscrewed from the pump body and the rotor. It
may be necessary to use a pipe wrench in order to free the stator from the
pump body.
(iv) Reassembly is the reverse of the above process.
INVERTER DRIVE PARAMETERS
Included with the equipment is the manual provided by the inverter drive
manufacturer. This gives details on how to set up and change the inverter parameters.
This should not normally be necessary, as the units have been pre-programmed before
delivery. It is recommended that the factory pre-set values are left unchanged. It is
essential that any changes are only attempted by advanced users with a thorough
understanding of motor inverter drives.
In case of accidental reprogramming, the method of returning to the factory set
parameters is given below.
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