Pulley Alignment And Belt Tension; Beater Drive Coupling Replacement And End Play Setting; Beater Drive Coupling Removal - H.C Duke & Son 959R Operator’s Manual With Illustrated Parts List

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10.3

Pulley Alignment and Belt Tension

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10.4 Beater Drive Coupling Replacement and End Play
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Setting
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10.4.1
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Beater Drive Coupling Removal

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184981-02
CAUTION
To avoid electrical shock
or contact with moving
parts, make sure all
switches are in the
"OFF" position and that
the main power supply is
disconnected. Some
freezers have more than
one disconnect switch.
1. Remove the side panels to expose
the pulleys and the belt s.
2. Check the alignment of the beater
motor pulley and the gear reducer
pulley by placing a straight edge
across the faces of the two pul-
leys. If the pulleys are not aligned,
adjust as necessary until proper
alignment is obt ained.
IMPORTANT:
Improper drive coupling spacing will
damage the beater shaft, dispensing
head, and drive coupling. When
checking end play settings or replac-
ing a coupling, proceed as follows.
CAUTION
Make sure freezer is
depressurized before
proceeding.
1. Remove product from the cylinder .
INSTALLATION AND SERVICE MANUAL 959R
Note: Most pulleys are mounted with
Loctite . It may be necessary to heat for
®
removal.
3. Depress the belt at a point midway
between the two pulleys. When
properly adjusted, the belt should
depress ½ inch from its normal
position with approximately five
pounds of pressure.
4. If the belt is too tight or too loose,
adjust as necessary until proper belt
deflection is obtained by loosening
the four (4) bolts which hold the
motor mounting plate to the frame.
With these loose, adjust the tension
bolt in or out as required to obtain
proper belt tension. Retighten bolt s.
5. Periodically inspect the belts. If they
are worn excessively, replace both
belts, as they are manufactured in
matched sets.
2. Remove dispensing head and
beater shaft assemblies (see figure
10-2 Ref. #2).
3. Remove drive belts. (not shown)
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure all switches are
in the "OFF" position and
that the main power supply
is disconnected. Some
freezers have more than
one disconnect switch.
—continued
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