OM/SM-TDB/7(CE)
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lubrication with grease is necessary. Frequency of
lubrication will depend on operating conditions, but
the service should be performed at least once every
six months.
Add grease through the Zerk fittings on the gear
housing until you see grease flow out of the
bearings around the trunnion shaft. Also place
a liberal amount of grease on the gear to cover
the arc that is in contact with the worm gear.
When finished, reassemble access panels to
support housing.
Electrical wiring should be kept securely
connected and in good condition.
2. Jacket Vacuum
When the kettle is cold, a positive pressure reading
or a reading around zero on the pressure/vacuum
gauge indicates the presence of air in the jacket. Air
in the jacket slows down the heating of the kettle.
To remove air:
a.
Start the unit. (See the “Operation” section of
this manual.) (Be sure there is water or product
in the kettle when heating).
b. When the pressure/vacuum gauge reaches a
positive pressure reading of five PSI, release
the trapped air and steam by pulling up on the
safety valve for about 1 second. Repeat this
step, then let the chain snap back into the
closed position.
3. Jacket Filling and Water Treatment
The jacket was charged at the factory with the
proper amount of treated distilled water. You may
need to restore the water to its proper level, either
because water was lost as steam during venting or
because treated water was lost by draining.
IMPORTANT
Pressure gauge must read 0 PSI or less before
you fill jacket with water.
To fill jacket with water:
a.
If you are replacing water lost as steam, use
distilled water. If you are replacing treated water
that ran out of the jacket, prepare more treated
water as directed in step 3, “Water Treatment
Procedure”.
b.
Remove fill plug with open-end wrench or
crescent wrench.
c
Open shutoff valve (turn handle 90° on ball
valve).
d.
Use a funnel and add water to jacket.
e
Check water level in jacket, by viewing water
level indicator glass.
f.
Continue to add water until the water level
indicator glass is 3/4 full.
g
Close shutoff valve, and install fill plug.
Follow procedure in “Jacket Vacuum” to
remove air from kettle jacket.
3. Water Treatment Procedure
WARNING
TO AVOID INJURY, READ AND FOLLOW ALL
PRECAUTIONS STATED ON THE LABEL OF
THE WATER TREATMENT COMPOUND.
a.
Obtain water treatment compound and a PH
test kit from your authorized Groen parts
distributor.
b.
Fill the mixing container with the measured
amount of water required. (See the table at
right). Use distilled water.
c.
Hang a strip of pH test paper on the rim of
the container, with about 25 mm of the strip
below the surface of the water.
d.
Measure the water treatment compound you
will be using. (One way to do this is to add
the compound from a measuring cup.)
e.
Stir the water continuously, while you slowly
add water treatment compound, until the
water reaches a pH between 10.5 and 11.5.
Judge the pH by frequently comparing the
color of the test strip with the color chart
provided in the pH test kit.
f.
Record the exact amounts of water and
treatment compound used. These amounts
may be used again, if the same sources of
water and compound are employed to refill
the jacket in the future. However, it is
advisable to check the pH every time treated
water is prepared. For optimum
performance, use correctly treated, distilled
water.
