Coleman manual Model 5040 A Repair Manual, To replace mantle electrodes, refer to Figures

Model 5040 A Repair Manual

To repair or replace the burner, refer to Figures 1-3, and Figures 6-7.

Remove reflector (Figure 1). Remove burner screen assembly top as a unit by removing only the 4 lower hex-head screws holding the burner screen assembly top to its bottom using a 7/16" wrench (Figures 2 and 3). Remove 2 burner bracket screws (Figure 6-a). Also see Note #1. Then lift burner straight up to remove (Figure 7). When reinstalling the burner it may help to rotate it as it is pushed down the center tube. Make sure the burner locating hole at the bottom of the burner (Figure 6) fits over the valve/manifold boss. This can be verified by looking through the maintenance access open- ing (Figure 7-a).

Locating

Hole

Figure 6 Figure 6-a Figure 7

Burner

Locating

Hole

Valve/Manifold

Boss

Figure 7-a

To replace mantle electrode(s), refer to Figures 8-11.

Remove glass panels. Unplug electrode wire from igniter (Figure 9). Then remove electrode bracket screw (Figure 10). Electrode can now be removed through the opening in the head frame (Figure 11). Also see Note #1.

Mantle

Electrode

Figure 8 Figure 9

Figure 10 Figure 11

Note #1: For difficult to remove screws, apply 3-in-1 oil, penetrating oil, or WD-40. Let sit for several hours or overnight, then attempt to remove screws again.

5