Hammond Model A, Manual, Page: 173 / 298

CONSOLE HEATER
In very humid climates and in other locations where the Hammond Organ is exposed to
extreme dampness, it is often advisable to install a heater in the console to keep
the interior of the instrument dry and to reduce the possibility of excess moisture
causing damage to electrical parts.
A heater designed for this purpose (was) available 1n kit form from the factory.
This kit includes all necessary mounting parts and may be installed by the service
technician in any Hammond organ console in a few minutes time.
INSTALLATION OF HEATER IN MODEL A CONSOLES
1. Attach the special bracket furnished with the kit to heater socket as shown
in figure 2,using two screws and lock washers. All mounting holes in the special
bracket are tapped for screws, so no nuts are necessary.
2. Remove back of console and attach heater to flange at upper left hand
corner of rheostat box as shown in figure 2, using the remaining two screws, flat
washers and lock washers furnished with kit.
3. Remove power terminal panel cover and solder heater cord ends to terminals
8 and 13 counting from left of panel as shown in figure 1.
4. Replace terminal panel cover, plug heater in socket and attach red
instruction tag to power cord plug.
INSTALLATION OF HEATER IN MODEL B, C, & D CONSOLES
1. Remove back of console and place heater socket 3/4" to the left of oil cup
mounting plate as shown in figure 3 and mark location of two mounting holes. These
holes should be in line with oil cup mounting screws. (Consoles are now being
furnished with these holes punched in mounting plate.)
2. Drill holes for heater socket mounting, using a #24 or a 5/32"' drill.
3. Drill another similar hole for cable clip 8 3/4"to the left of holes just
drilled and in line with same.
4. Using two of the screws, lock washers and nuts provided with the kit, mount
the heater socket and one cable cl1p. The clip is held in place by the left hand
socket mounting screw.
5. Mount the other cable clip with the remaining screw and fasten heater cord
in place.
6. Remove power terminal panel cover and solder heater cord ends to terminals
#8 and #13 counting from left of panel as shown in figure 1.
7. Replace terminal panel cover, plug heater in socket and attach red
instruction tag to power cord plug.
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