Nu-Way MDFL 3300, Руководство по установке и обслуживанию

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ROUTINE MAINTENANCE
ALWAYS SWITCH OFF THE ELECTRICAL POWER AND FUEL SUPPLIES TO THE BURNER
BEFORE CARRYING OUT MAINTENANCE.
Combustion Air Fan – All Models
Remove the burner top cover to gain access to the combustion air fan. Clean the fan blades with a
stiff brush, taking care not to damage them.
Inspect the burner air inlet frequently and ensure that there is no obstruction to the air flow.
Replacing the Air/Gas Ratio Controller
If mechanical or electrical failure necessitates replacement of the air/gas ratio controller, the burner
must be recommissioned to ensure that it is returned to the correct combustion and throughput
settings.
Replacement of the air/gas ratio controller and the subsequent recommissioning shall be undertaken
only by appropriately qualified and experienced personnel.
Burner Inner Assembly
To gain access to the burner inner assembly, first remove the multi-pin plug from the socket on the
control system.
Remove the locking nut securing the hinged extension and open this extension. Disconnect the
ignition leads.
Remove the two screws which secure the oil manifold within the hinged extension.
Remove the four bolts which locate the inner assembly and withdraw the assembly, taking care not to
damage it.
Clean the air diffuser and gas nozzle with a stiff brush.
Clean and reset the ignition electrodes and check that they are not cracked or worn. Renew the
electrodes if necessary.
Remove the oil gun, complete with nozzle, from the centre of the inner assembly. Remove the nozzle
from the gun and wash it in a suitable solvent, removing any remaining deposits with a clean, lint-free
cloth. The oil nozzle should be replaced after 5000 hours operation.
Reverse the order of actions detailed above to replace the inner assembly and prepare the burner for
normal operation.
Oil Filters
If the filter fitted in the oil supply line has a disposable element this should be replaced at least once a
year, more frequently if this is dictated by the condition of the fuel or other local conditions. If the filter
element is re-usable it should be cleaned at appropriate intervals.
After filter cleaning operations it will be necessary to remove air from the system by bleeding the
pump.
MDFL 3300 & MDFL 4000 Issue 2 08/08 Page 38