Vulcan-Hart 3-130, Service Manual

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8 – 10
SECTION 8 - DISASSEMBLY/REASSEMBLY
8.12 COMPLETE MUFFLE REPLACEMENT
TOOLS:
Phillips head screwdriver; bladed screw
driver; needle nose pliers
8.12.1: Follow steps 8.1.1 - 8.1.2 of CONTROL DRAWER
REMOVAL.
8.12.2: Close door and remove 6 screws on the front
top of the furnace. Remove exhaust port
8.12.3: Close door and remove six screws
(three each side)
WARNING:
Disconnect power from the wall outlet before
attempting to service the furnace!
8.12.4: Disconnect muffle wires. (Refer to wiring
diagram 5.9).
8.12.5:
Disconnect thermocouple from circuit board
8.12.6: Pull/pry out muffle assy (with attached front
panel) from wraparound
8.12.7: Remove screw used to secure thermocouple
and pull thermocouple from muffle
8.12.8: Remove muffle assy by removing 10 screw.
8.12.9: Replace with new muffle assy by reversing steps
8.12.1 - 8.12.8. Make sure that muffle wires pass thru
brass bushings in heatshield
REMOVE SCREWS
REMOVE SCREWS
REMOVE SCREWS
muffle wires must pass thru
brass bushings (4 pl)
TAN W/BLK
MARK
100, 120V
MUFFLE
WIRING
230V MUFFLE
WIRING
TAN W/BLK MARK
TAN