HDG Navora 20, Operation Manual

Page: 67 / 80

7 Cleaning and servicing the heating system – Procedure
67
3. Clamp a sheet of paper (approx. 30 cm long and 2 cm wide)
between the contact surface (3) and the seal (2) of the fuel
chamber door.
4. Close the fuel chamber door (1).
5. Pull on the paper.
✓
If the paper moves, the door is not properly sealed.
✓
If the paper does not move, the door is properly sealed.
6. Repeat the procedure from step 2 to step 5 until you have
inspected all four of the contact surfaces (3).
7. Remove the paper and close the fuel chamber door (1).
✓
The inspection of the fuel chamber door is complete.
I
NSPECTING THE COMBUSTION
CHAMBER DOOR
8. Open the combustion chamber door (1).
9. Clamp a sheet of paper (approx. 30 cm long and 2 cm wide)
between the contact surface (3) and the seal (2) of the combustion
chamber door.
10. Close the combustion chamber door (1).
Figure 7/16 - Checking the fuel chamber door for leaks
3
1
2
If a correction to the fuel chamber door is necessary, consult a
qualified specialist.
Figure 7/17 - Checking the combustion chamber door for leaks
2
3
1