48   18-09-2007  122770 06 
Remove the air filter by loosening 
the 4 screws holding it. 
If the air filter is dirty, replace it. 
 
Now loosen the 4 nuts holding the 
Stirling engine. 
 
Lift the Stirling engine as little as 
possible to slide out the fan, max. 
5cm. 
 
 
 
 
H.  Removal of Transformer 
   (Exploded views, pos. 11) 
First follow steps A through D followed by retraction of the 
two aluminium plates as described in the guidelines above.