Service manual

M411433 41
Section 5 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
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47. MAIN COIL
(Instant Electronic Ignition Models)
Refer to Figure 15.
NOTE: The redundant coil cannot be purchased
separately. Replace complete gas valve.
a. Remove control panel.
b. Close gas shut-off valve. Refer to Figure 14.
c. Disconnect wires from main coil terminals.
d. Remove screws holding main coil to gas valve.
48. BURNER TUBE
a. Remove control panel.
b. Close gas shut-off valve. Refer to Figure 14.
c. Disconnect union nuts attaching nipple to
spudholder and remove spudholder.
d. Remove screws holding gas and valve bracket
to stove assembly.
e. Remove screws holding burner tubes to stove
frame and remove burner tubes.
IMPORTANT: Make sure that spudholder and
orifices are positioned such that gas will be injected
directly down the center of the burner.
49. CONTACTORS AND TERMINAL BLOCK
(Electric Models)
Refer to Figure 16.
NOTE: Contactors and terminal blocks are located
in contactor box at the rear of the tumbler.
a. Remove screw holding cover to contactor box
and remove cover.
b. Remove wires from contactor terminals and
terminal blocks.
NOTE: Refer to wiring diagram when rewiring
contactors or terminal blocks.
c. Remove screws attaching contactor to box.
d. Remove two screws holding terminal block to
box.
NOTE: Terminal block consists of two terminal
section (one phase) or three terminal sections (three
phase) and an end piece snapped together. Later
models use a one-piece three position terminal block
mounted on a din rail.
To reduce risk of fire or explosion, check
pipe connections for gas leaks with a non-
corrosive leak detection fluid. Do not use an
open flame to check for gas leaks!
W310
WARNING
Figure 16
T182SE1A
TERMINAL
BLOCKS
CONTACTOR
CONTACTOR