Thermo Scientific NAPCO 6506, Operator'S Manual

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5
PERIODIC MAINTENANCE
1. If the oven fails to maintain set temperature, it
may indicate a problem with the Temp.
Control, or possibly a heating element failure.
Contact your local service representative.
2. Sometimes due to shipping, handling and
normal operational wear, oven doors will get
out of alignment. Realignment is
accomplished quickly and easily as follows:
a. Loosen the set screws holding the hinge
bar in place. (Note that the hinge bar moves
easily once the set screws are loosened.)
b. Center the door in the door frame and apply
pressure toward the top of the oven.
Retighten the set screws.
If properly aligned, the door frame should seat
freely against the door gasket without binding
when the oven is placed in the proper position.
In case the latch bar on the right side of the
oven is out of alignment, it can be adjusted in
the same manner.
3. Gaskets should be checked periodically for
hardening, shrinking, deterioration or other
signs of wear. It is advisable to keep several
gaskets available for use as replacement.
4. The oven is equipped with silicone door
gaskets, unless specified otherwise. Do not
use silicone door gaskets or vacuum grease
when evaporating solvents in the oven or
when using high analine point oils. BUNA-N
gaskets should be used in applications when
evaporation solvents or when using high
analine point oils.
5. The interior finish or silicone gaskets may be
damaged by the following:
Diesel oil
JP-4 oil
MIL-0-5606
Hydraulic Fluids
Butyl Acetate
Carbon Tetrachloride
Ethylene Chloride
Gasoline
Kerosene
Zylene
Methyl Chloride
Stoddard Solvent
Toluene
Aromatic Chlorinated solvent
6. Refer to the following chart as a guide to what
type of door gasket material is best suited for
your needs.