Replacing The Pilot/ Pilot Tube Assembly; Cleaning The Combustion Chamber And Flame-Arrestor - Sears Kenmore 153.576300 Use & Care Manual

as a bending template for the new pilot assembly. Note
the placement/order of the wires in the manifold component
block.
CONNECTORS
IGNITER
WIRE
MANIFOLD COMPONENT
BLOCK
PILOT TUBE
MANIFOLD DOOR
FIGURE 35.
5. Lift the pilot/thermopile assembly (including the igniter wire)
from the manifold assembly.
6. NOTE: Read this step carefully before proceeding. Use the
old pilot/pilot tube assembly as a guide, bend the new pilot
tube to match the old one. Make only the bends closest to
the pilot before going to the next step.
PILOT
IGNITER
CONNECTORS
CONNECTOR
(CONNECT AT
GAS CONTROL VALVE/
THERMOSTAT)
FIGURE 36.
7. Route the new pilot tube, new igniter wire and new
thermopile wire through the opening in the manifold door
(Figure 37).
MANIFOLD
COMPONENT
BLOCK
PILOT TUBE PASSES
IGNITER WIRE PASSES
THROUGH BOTTOM HOLE
THROUGH CENTER OF
OF MANIFOLD COMPONENT
MANIFOLD COMPONENT
BLOCK (LARGEST HOLE)
BLOCK (SMALLEST HOLE)
FIGURE 37.
PILOT / THERMOPILE
ASSEMBLY SCREW
BURNER AND OTHER
FITTINGS NOT SHOW
FOR CLARITY.
RETAINER
CLIP
RED WIRES TO
THERMAL SWITCH (2)
THERMOPILE
PILOT/THERMOPILE
ASSEMBLY
THERMAL
SWITCH
CONNECTORS
(RED WIRES)
FOR CLARITY, PILOT
TUBE NOT SHOWN .
RED (+) THERMAL SWITCH WIRE
CONNECTS TO THE GAS CONTROL
VALVE\THERMOSTAT.
WHITE (-) THERMOPILE WIRE
CONNECTS TO THE GAS
CONTROL VALVE\THERMOSTAT.
RED THERMAL SWITCH WIRE
CONNECTIONS AT MANIFOLD DOOR
THERMOPILE WIRES
PASS THROUGH TOP
HOLE OF THE MANIFOLD
COMPONENT BLOCK
8. Using the pilot/thermopile assembly screw removed earlier
reattach the new pilot/thermopile assembly. Reattach the
burner to the manifold using the screws removed earlier.
NOTE: make sure the burner scoop is oriented to the pilot
side of the manifold tube (Figure 34).
9. Reinstall the manifold component block in the manifold door
(Figure 37).
10. Carefully bend the new pilot tube to match the bend of the
manifold tube. NOTE: When bending DO NOT crimp or
crease the pilot tube.
11. Before you proceed to the next step, install the new brass
ferrule nut in the gas control valve/thermostat's pilot tube
opening. HAND TIGHT ONLY.
12. Follow the "Replacing the Burner/Manifold Assembly"
instructions to replace the manifold door.
Cleaning the Combustion Chamber and
Flame-arrestor
1. Follow procedure outlined in "Removing the Manifold/
Burner Assembly."
2. Use a vacuum cleaner/shop vac to remove all loose debris
in the combustion chamber (Figure 38). Use compressed
air to clear any dust or debris that may have accumulated
in the flame-arrestor.
FLAME ARRESTOR
DOOR GASKET
BASE-RING
FILTER
3. Reassemble by following the procedure under "Replacing
the Manifold/Burner Assembly."
31
COMBUSTION CHAMBER
FIGURE 38.