Delta Faucet DF-745 Manuel D’Utilisation

Service                                                                               DF-745

If an analyzer has to be returned to the factory, the shipper will have to obtain a Return Material 
Authorization number from Delta F by calling the Service Line at (781) 935-5808 or sending a 
written request via their Service Fax Line at (781) 932-0053. See the Shipping section for more 
details.

If the analyzer is to be stored for extended periods of time, be sure that the temperature of storage 
location does not exceed 50° C (122° F).  Storage in direct sunlight can cause temperatures to 
exceed the recommended limits even though ambient temperatures may be below the maximum 
temperature.

Store the analyzer with the electrolyte removed from the sensor.  

None required.

The vacuum pump, if equipped, requires periodic maintenance in order to maintain proper 
pressure and individual installations will ultimately determine the appropriate maintenance 
interval. A good working pump will pull down to 120 torr or less, but when pump performance 
degrades to the point that proper pressure cannot be attained, a significant improvement in 
performance can often be achieved by simple cleaning of the cylinder and piston assembly. A 
rebuild kit is available from Delta F to return the pump to original specifications. See the list on 
page 73 for cleaning fluid and rebuild kit part numbers.

1. Disconnect power and vent all lines

2. Remove head bolts, head, gasket and valve plate assembly (note orientation of head)

3. Remove cylinder and shims.

4. Clean residue from walls using a soft cloth and non-petroleum, non-oil based solvent.

5. Replace cylinder including all shims. Be sure to orient the shims exactly the same as they 

were removed.