Special Maintenance - Comet CRRC 50 ECO L Betriebsanleitung

in compliance with the laws in force in the country where the machine is used.
• Do not clean the filters near waterways, wells, springs or ditches.
• Dispose of used filtering cartridges and filters in the proper manner and not in the environment.
Proceed as follows to clean the fill-up filter (23):
- turn the cover (2) anticlockwise and take it off;
- take the filter out and clean it; if the dirt is particularly stubborn, replace the filter (16x20 mesh), contacting
a
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- reposition the filter and close, turning the cover (2) clockwise without forcing.
Proceed as follows to clean the suction filter (5):
a) ECO trolleys with filter with valve:
- press knob (42) and turn it anticlockwise to release it;
- extract the knob (42): the filter valve prevents liquid leaking from the tank except for the small quantity
of fluid that is inside the filter body;
- turn the ring nut (43) anticlockwise until it is completely unscrewed;
- take the filtering cartridge out and clean it; if the dirt is particularly stubborn, replace the cartridge (32÷50
mesh), contacting a
- reposition the cartridge and close the filter, turning the ring nut (43) clockwise all the way down;
- re-insert the knob (42) and keep it pressed; turn it clockwise until the locked position is reached.
b) Other barrow and trolley models:
- turn the ring nut (43) anticlockwise until it is completely unscrewed;
- take the filtering cartridge out and clean it; if the dirt is particularly stubborn, replace the cartridge (32÷50
mesh), contacting a
- reposition the cartridge and close the filter, turning the ring nut (43) clockwise all the way down.
The breakage of one or more diaphragms can cause aggression on the mechanical part of the pump by the
pumped liquids.
The following are symptoms of possible diaphragm breakage:
• whitish colour of the oil (symptom of water in oil);
• excessive oil consumption;
• sudden disappearance of oil from volumetric compensator (32).
CAUTION
• To avoid the negative consequences of such a fault, use of the machine must be immediately stopped
and a
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inspections.
• If, in the case of an evident diaphragm breakage, a
away, it is best to empty the mix of oil and pumped liquid from the pan and fill it with oil or diesel fuel, to
prevent oxidisation.
• The following often cause diaphragm breakage:
- blockages in the suction circuit (pipes of inadequate diameter, very dirty filter, pumping of very dense
liquids, etc.);
- use of highly aggressive chemical products.
WARNING
• Special maintenance jobs must only be performed by a
• Used oil and any replaced spare parts must be adequately disposed of and not discarded in the
environment.
Follow the indications given in the following table for special maintenance jobs.
40
for the correct part to use;
for the correct part to use;
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for the correct part to use;
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DIAPHRAGM BREAKAGE
must be straight away contacted (within 24 hours) to carry out the necessary

SPECIAL MAINTENANCE

cannot be contacted straight
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.