MIL-HDBK-1025/10
d. Furnaces should be lighted carefully and guarded with a three-sided windshield at all
times when burning in public places. Never light or burn furnaces in dangerous locations and
never leave them unattended. Lighted or hot torches or furnaces should not be transported in
trucks or other moving vehicles.
e. Always take special care not to splash solder on any person or equipment. Soldering
pots should not be placed on furnaces without a pot guard. Never attempt to do soldering unless
a fellow worker is stationed on the ground as a guard. If necessary, rope off a safe distance.
Before lowering hot solder or compound into a manhole, warn those in the manholes to stand
clear. Do not lower anything until given instructions from below to do so.
f. If compound kettles have no breathers, punch holes through the top crust of the
compound to the bottom before heating so that air and moisture can escape. Heat the compound
slowly.
g. Do not allow paraffin to reach a temperature exceeding 198 degrees C (390
degrees F). Procedures for use of bottled liquid fuels. Follow the manufacturer's instructions for
all operations, such as installing the torch on and removing it from fuel cylinder, lighting the torch
and using it, and cleaning the torch orifice. Always remove the torch from the fuel cylinder after
the job is completed and it is no longer needed. Operate only in well-ventilated areas. Do not
store full cylinders near heat or fire, or in living spaces.
h. Place compound kettles on the hoods or plates provided and never directly on top of
the furnaces.
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