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Model 490 Troubleshooting Guide
PROBLEM PROBABLE CAUSE REMEDY PAGE
REF.
6. Drive shaft stuck in the
drive coupling.
a. Rounded corners of drive
shaft, coupling or both.
a. Call service technician to
correct cause and replace
the necessary
components. Do not
lubricate hex end of drive
shaft.
- - -
b. Mix and lubricant collected
in drive coupling.
b. Brush clean rear shell
bearing area regularly.
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c. Misalignment of rear
bearing plate.
c. Contact service
technician.
- - -
7. Freezing cylinder walls
scored.
a. Beater assembly bent. a. Call service technician to
repair or replace beater
and to correct cause of
insuffi- cient mix in
freezing cylinder.
- - -
b. Missing or worn front
bearing on freezer door.
b. Install or replace front
bearing.
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8. Excessive mix leakage
into drive shaft drip pan.
a. Missing or worn drive
shaft seal on drive shaft.
a. Install or replace regularly.
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b. Drive shaft seal installed
inside out.
b. Install seal properly.
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c. Missing or worn drive
shaft o-ring.
c. Install or replace regularly.
10
d. Worn rear shell bearing. d. Call service technician to
replace rear shell bearing.
- - -
9. Excessive mix leakage
from door spout.
a. Missing or worn draw
valve o-rings.
a. Install or replace regularly.
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b. Inadequate lubrication of
draw valve o-rings.
b. Lubricate properly.
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c. Wrong type lubricant
being used (Example:
petroleum base lubricant).
c. Use proper lubricant
(Example: Taylor Lube).
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10. No freezer operation after
placing the unit in “AUTO”.
a. Unit unplugged. a. Plug into wall receptacle.
- - -
b. Circuit breaker off or
blown fuse.
b. Turn breaker on or
replace fuse.
- - -
c. Beater motor out on reset. c. Allow the motor to cool.
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d. The draw arm is not
activated.
d. After placing the freezer in
the AUTO mode, the draw
arm must be raised to
activate the AUTO cycle.
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