Impeller Shaft Sensor (Final - Under Power) - Bell DATASPEED 40 Adjustments And Lubrication

SECTION 582-210-700
IMPELLER SHAFT SENSOR (Final- Under Power)
Requirement
The impeller sensor is to be positioned 2-3/4
clockwise turns from a point where any
further counterclockwise motion of the
adjusting screw would cause a column or
columns not to print.
To Adjust
Step (A)
Step (B)
Step (C)
With the unit in the Test position
and printing the font identifica-
tion symbol, tum impeller sensor
adjusting screw (with a nut driver)
COUNTERCLOCKWISE through
a range where all columns print (approx-
imately 5 to 10 turns) until a
column or columns does not
print.
Slowly turn the adjusting screw
CLOCKWISE just until all col-
umns print for at least ten lines.
Turn the adjusting screw CLOCK'
ADJUSTING
SCREW
WISE an additional 2-3/4
IMPELLER SHAFT
turns.
SCREW MOUNTING
BRACKET TAB
MAGNETIC FLAG
SENSOR
Note 1: If while performing Step (A), a printing speed hesitation occurs before an individual column fails
to print, reposition the flag sensor slightly to the right to enable printing to continue while completing
the adjustment. See FLAG SENSOR ADJUSTMENT (Final).
Note 2: The impeller shaft sensor is adjusted at the factory using equipment and techniques not available
in the field. This adjustment should not be disturbed unless the unit has been disassembled, the printer
logic card replaced, or there is sufficient reason to believe the sensor is not adjusted properly.
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