Maintenance
79
10.2.3.3
Inserting the combustion tube
The following diagram shows the front of the HTFr with furnace locking device removed and O-
ring removed:
Fig. 36: Front of the HTFr with furnace locking device removed and O-ring removed
Insert the combustion tube as follows:
1. Ensure that the combustion tube has been removed, see
”.
2. Loosen the screws (
2
) to (
4
) as much as is needed for the adapter ring (
1
) to be moved.
The following diagram shows the back of the HTFr with combustion tube:
Fig. 37: Back of the HTFr with combustion tube
3. Carefully insert the new combustion tube (
5
) (Part No. 90162) onto the back of the HTFr.
Move or twist the combustion tube gently to ensure that the path is not blocked. Do not use
great force.
4. Slide the adapter ring (
1
) onto the front when the combustion tube abuts so that the
combustion tube is positioned in the middle.
The combustion tube should protrude a few centimetres from the adapter ring.
2
3
4
1
5
