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 MECHANICAL
Incinerators-Continued
failure to provide adequate expansion and contraction between
furnace setting and building and between flue and chimney
n If leakage is suspected, make open flame test and draft gage, arch, door
frames, and wall surfaces:
n Failure of furnace steel framing supports are indicated by damage to
arches and roof areas, door casings, and walls:
n Cables and Rigging of Adjustable Dampers and Counterweighted Doors:
rust
corrosion
inadequate lubrication
damaged or frayed strands
improper operation through defective pulleys, wheels, or other parts
n Doors:
rust
corrosion
warped
loose fit
damaged or missing parts of latches and hinges
n Tuyeres and Tuyere Plates:
warped
burned-out areas
n Charging Chute Frames and Covers:
rust
corrosion
broken
loose
missing parts
n
Inadequate ash-handling and ash-removal facilities:
n Portable-Type Pyrometers and Recording or Indicating Types fitted with
High and Low Temperature Warning Lights:
6-32
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