Carolina 25X Electric Pressure Steam Sterilizer - Manual (Page 6)

5
MAINTENANCE:
1. METAL-TO-METAL SEAL. (See Fig. 1)
Periodically check your seal. The metal-to-
metal seal must be lubricated periodically (as
stated in the instructions) to prevent the cover
from sticking to the bottom because of dryness
or lack of lubrication. If the sterilizer is
operated without any lubricant, this could
result in severe damage to the metal-to-metal
seal and make it very difficult to remove the
cover in some cases, and also become very
difficult to maintain a steam-tight seal. It is
recommended that a small amount of high
temperature lubricant, such as high vacuum
grease, be applied every third or fourth use.
The metal-to-metal seal must not be permitted
to become dry. It is also important to wipe off
the metal-to-metal seal by using a clean towel
to remove any build-up of foreign material or
particles trapped in the lubricant. To remove
any build-up of hardened lubricant on the seal,
use 0000 grade steel wool in a circular motion
around the metal-to-metal seal
2. PRESSURE GAUGE, PART NO. 72S. (See Fig.
4) Do not immerse the pressure gauge in water
when cleaning the unit. The pressure gauge
normally does not require any maintenance
except to make certain the opening into the
gauge on the underside of the cover is open
and free of any foreign
matter. If the gauge is
ever dropped, the unit
should not be used until
the gauge has been
checked to make sure
that it is functioning
properly. If your gauge
needs to be checked,
take it to a local scien-
tific supply house.
3. CONTROL VALVE, PART NO. 65. (See Fig. 2 &
3) To ensure long life and proper operation of
the control valve, periodic cleaning is recom-
mended. To clean, unscrew the "knurled top"
portion and clean thoroughly in hot soapy
water. If any foreign material has built up
inside the unit, clean the ball and seat using a
solvent such as acetone or a similar product.
Be sure to clean the control valve in hot soapy
water once again after using any solvent. In the
event that you are unable to properly clean any
buildup of foreign material in your control
valve, then it is recommended that the control
valve be discarded and replaced with a new
control valve.
4. AIR EXHAUST TUBE, PART NO. 2155. (See
Fig. 5) It is essential that the air exhaust tube
be frequently checked to make sure that air
passes freely through it. We recommend that
you blow air through the air exhaust tube at
least once a month to make certain it is not
blocked or plugged with any foreign material.
The air exhaust tube is not part of the control
valve and can be removed separately from the
cover in the event that it is blocked. Clean out
the air exhaust tube by using a small diameter
wire, running it through the entire length of the
tube several times. If you notice a buildup of
any foreign material on the inside of the air
passage or a buildup of any corrosion on the
inside of the air passage, then it is recom-
mended that you discard this tube and replace
it with a new air exhaust tube.
5. EXCESS PRESSURE RELIEF VALVE, PART NO.
2050CS. (See Fig. 6) This sterilizer is
equipped with a new type of excess pressure
relief valve. It is
designed for longer,
maintenance-free
service; however, we
do recommend that the
valve be replaced every
three years in normal
service. The valve is
designed to release
pressure at 26 PSI
(±1 PSI). Each valve
is equipped with a
deflector cap which will direct any steam
released in a downward direction. Also it is
possible to manually release steam and
pressure in this unit by simply grasping the
deflector cap and pulling upwards slightly. The
deflector cap will be hot. Always use hot pads
when handling. This will instantly release
pressure inside the unit until you release the
cap and the valve, at which time the valve
instantly reseals, thereby stopping any further
pressure from escaping.
6. SUPPORT BASE FOR 25X (Part No. 2180).
See above photo. This support base is an
accessory item that is available for your
sterilizer. The function of the support base is to
elevate the bottom of the sterilizer approxi-
mately 1 3 ⁄ 8 "above the table or counter surface
upon which the unit is to be operated. The
support base will eliminate any heat damage to
the table or counter surface as it permits the
free circulation of air. Should you require a
support base for your unit, they may be
obtained from your supplier or you may write
the factory. For correct placement of the
support base, please refer to picture on cover.
Fig. 1
Metal-to-metal seal
Apply lubricant here
Fig. 4
Pressure Gauge
Open control
valve
Closed control
valve
Fig. 2 Fig. 3
Lever horizontal
or closed
valve body
steam escape
holes
Lever vertical
or open
Fig. 5
Fig. 6 Part No.
2050CS Excess
Pressure Relief Valve
#2180
Deflector Cap