ELK
6.1 Cleaning and disassembly of the cooler matrix
Due to the design of the cooling fins, the cooler has low susceptibility to dust and dirt. Normally, it is sufficient to clean the front
surface with a brush. However, particularly if the air has a high dust and/or oil mist content, the cooling matrices may require
regular cleaning.
– First allow the cooling matrix to cool down. Disconnect the motor from the mains and secure it against accidental restarting.
– Depressurize the system and disconnect the piping to the cooling matrix. Place an oil drip pan below the cooling matrix to
collect leaking oil.
– Close all connections with plugs to avoid more oil leaking from the matrix.
– Protect the cooling matrix from falling down.
– First remove the fan guard with motor and fan wheel by unscrewing the 4 fastening screws. After removing the four con-
necting bolts to the box, the cooling element can be loosened and removed.
– Move the cooling matrix to the cleaning area. Be sure not to crush the fins during transport and cleaning.
– The fins can easily be cleaned with compressed air. Carefully direct the stream parallel to the fins.
– Residue can be carefully removed with a pressure washer and degreaser. Rinse with clear water after cleaning.
– After cleaning, remount the cooling matrix in reverse order.
– Ensure the splices are seated correctly.
6.2 Cleaning the cooler matrix inside
In the event of deposits in the cooling matrix due to inadequate filtration, you may try to remove these as follows after cleaning
the outside:
– Remove the cooler matrix as described in “Cooler matrix cleaning and disassembly”.
– Add degreaser and close all connections of the cooler matrix with plugs.
– After allowing the degreaser to sit for a while, drain and flush the cooler matrix with clean fluid. Dispose of the degreaser
and flushing oil as required by law.
– After cleaning, remount the cooler matrix in reverse order.
6.3 Cleaning the fan case
Due to the design, dust and dirt will not deposit in a large amount inside the fan case. Nevertheless, any deposits of dirt should
be blown out each time the cooler is cleaned.
6.4 Replacing fan parts
– Disconnect the motor from power and secure against restarting.
– Now disconnect the connecting cable.
– Protect the fan from falling.
– Now loosen the four connecting screws to the box at the tips of the grate.
– You can now carefully remove the fan out the back.
– Insert the new fan in the reverse order. When replacing the fan wheel, the retaining screw of the fan must be installed in the
motor shaft using glue to secure the screws.
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Bühler Technologies GmbH
BE350034 ◦ 08/2022
Summary of Contents for 35ELK10040
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