Groen TDB, Operator'S Manual

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3. Grease / Lubrication
(By Service)
For TDB Models: At least twice a year,
grease the two trunnion bearings. The
bearings are located within the kettle support
housing. Remove the access panels from
the support housing with a screwdriver to
gain access to the grease fittings. Use a
lithium-based, multi-purpose grease. When
the access panels are removed, the
mounting bolts for the trunnion bearings and
tilt switch can also be checked for tightness.
When finished, reassemble access panels to
support housing.
For TDBC Models: The gear housing has
been fitted for proper lubrication of moving
parts. Since the gears do not run in oil,
periodic lubrication with grease is essential.
Frequency of lubrication depends on
operating conditions, but should occur at
least once every six months. Groen
recommends the use of a Number Two
grade LGI lithium grease. Add grease
through the Zerk fittings on the gear housing
until grease flows out of the bearings around
the trunnion shaft. Place a liberal amount of
grease on the gear to cover the arc that is in
contact with the worm gear.
CAUTION
KEEP GREASE AWAY FROM ELECTRICAL
PARTS LOCATED NEAR THE GEARS.
4. Jacket Filling
Every day, before you turn on the unit,
make sure the water level is approximately
in the center of the water gauge glass. The
jacket was filled at the factory with the
proper amount of treated water, and is air-
tight, but over time steam may be vented
and water lost.
From time to time, you may need to restore
the water to its proper level. The procedure
for adding water follows.
a. If you are replacing water lost as
steam, use distilled water. Do not use
tap water. If you are replacing treated
water that was drained from the jacket,
prepare more treated water as directed
below.
b. Allow the kettle to cool completely.
Remove the pipe plug from the jacket
fill assembly. Pour in the distilled or
treated water. Using a funnel will help
you in this process. Hold the pressure
relief valve open while you pour, to let
air escape from the jacket. Continue
adding water until the water level rises
to the center of the round sight glass.
c. Air that gets into the jacket during the
filling operation must be removed,
because it will make heating less
efficient. Follow the procedure in
Jacket Vacuum/Removing Air From
Jacket above, to restore a negative
pressure reading.
5. Water Treatment
WARNING
TO AVOID INJURY, READ AND FOLLOW
ALL PRECAUTIONS STATED ON THE
LABEL OF THE WATER TREATMENT
COMPOUND.
a. Fill a mixing container with the amount
of water required. Use only distilled
water.
Model
Kettle
Capacity
Jacket
Capacity
TDB-20, TDBC-20 20 Qt 18.9 7 Qt 6.6
TDB-40, TDBC-40 40 Qt 37.8 9 Qt 8.5
The pressure relief valve and fill plug are
located directly behind the pressure/vacuum
gauge.
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14 OM-TDB