2002 by ELTRA GmbH Germany – January 2002 – Service Manual OH 900 / ON 900 / ONH 2000
2.18-1
Positioning the sample drop motor
Remove the right-side panel of the analyser
Loosen the nuts ( 2 )
Move the motor bracket ( 3 ) until the sample drop unit on the furnace ( 1 ) and the
cam ( 5 ) are well aligned
Re-tighten the nuts ( 2 )
Positioning the motor switch
This adjustment can only be done once the above positioning is correct
Loosen the nuts ( 6 )
In order to adjust the position of the motor switch ( 7 ) next to the sample drop motor, it
is necessary to ensure that the cam ( 5 ) is turned to the position shown in the drawing.
This means that the switch must rest on the round edge, not on the flat edge of the
cam ( 5 )
This is achieved by setting the mains switch, first to position 0 then to position 1.
Watch the cam ( 5 ) rotating; when it reaches the required position, set the mains
switch back to position 0.
Move the switch to the right until it is fully compressed, then loosen it a bit (about
1mm), by moving it to the left. It is important not to hear the „click“.
Re-tighten the nuts ( 6 ).
4
3
5
5
6
7
6
2
3
2
1
2-18-3
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