October 22, 2013 7046-191 2527I-ACCF. Tube Channel Assembly ReplacementRemoving Tube Channel Assembly1. Remove the 3 bottom bricks first and then remove the 3right side bricks.2. Remove the baffle protection channel by bending backthe tabs using needle nose pliers located at the right andleft side of the protection cover. Lift the cover up slightlyand pull toward the front and out of the firebox. Figure25.1.3. Locate the 2 channel nuts inside of chamber and removeusing a 7/16 socket wrench. Figure 25.2.NOTE: Soak the bolts with penetrating oil for at least 15 min-utes before trying to remove them.4. Slide the tube channel assembly all the way to left until itis off the threads. Drop the right side down, then slide theassembly back to right. Figure 24.1 on page 24.5. The ceramic blanket and both baffle boards can beremoved at the same time you remove the tube channelassembly.6. When the tube channel assembly is free of the left sidesupport, rotate clockwise and pull assembly, blanket andbaffles out through the front opening.7. Re-install in reverse order.Figure 25.32 Tube Channel NutsTube ChannelAssemblyCeramic BlanketBaffle BoardsBaffle Protection Channel2111341243Rotate andremove fromfireboxUse 7/16 Socket Wrenchand Remove Channel NutsBaffle ProtectionChannelBend Back TabsFig. 25.1Fig. 25.2