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9. Gently slide the
MOTOR MOUNTING PLATE
toward the back of the shaker, to loosen
the
MOTOR BELT
from the
MOTOR PULLEY
and the
LARGE COUNTERWEIGHTED
PULLEY
. Moving the
MOTOR MOUNTING PLATE
back will cause the
MOTOR BELT
to
fall from both belt tracks.
10. Remove
MOTOR BELT
and set it aside.
11. Continue to loosen and remove the two
HEX BOLTS
and
WASHERS
from the
MOTOR
MOUNTING PLATE
.
12. Tilt the
MOUNTING PLATE
backwards. Unscrew the
NUT
on the right, and remove the
GREEN/YELLOW GROUND WIRE
from underneath the
PLATE
.
13. Remove the old
MOTOR
and the
MOTOR MOUNTING PLATE
.
14. Tilt the new
MOTOR
upside down and place the
GREEN/YELLOW WIRE
over the
SMALL SCREW STUD
.
15. Tighten the
NUT
.
16. Align the
MOTOR PLATE
over the holes on the
SHAKER BASE
and verify that the
MOTOR PLATE
sits smoothly over the holes.
17. Replace and slightly tighten the two
HEX BOLTS
and
WASHERS
on the
MOTOR
MOUNTING PLATE
.
18. With pne hand, place the
MOTOR BELT
around the
MOTOR PULLEY
and with the
other hand guide the
MOTOR BELT
around the
LARGE COUNTERWEIGHTED PULLEY
.
19. Adjust the
MOTOR PULLEY
height so that the belt is level relative to the
DRIVE
PULLEY
.
20. Move the
MOTOR MOUNTING PLATE
forward, until there is a slight resistance.
21. Verify that the
MOTOR BELT
has a slight pressure near the center. The recommended
deflection is 3/8 inch (9.5 mm).
22. Tighten the two
HEX BOLTS
on the
MOTOR MOUNTING PLATE
.
23. Reinstall the two
GREEN/YELLOW GROUND WIRES
over the
SMALL SCREW STUD
to
the right of the
MOTOR MOUNTING PLATE
, then reinstall the
GREEN GROUND WIRE
.
24. Tighten the
NUT
to the
SMALL SCREW STUD
.
25. Reconnect the
WHITE CONNECTOR
on the
MOTOR BASE
and verify that the pins are
properly positioned.
26. Reinstall the hinged front panel using the three screws previously set aside. Use a
Phillips head (+) screwdriver to tighten the screws.
27. Close the door of the shaker.
28. Reconnect the
POWER
CORD
to the electrical outlet.
8.7 Partial Motor Assembly Replacement
The qualified Service Engineer will:
1. Unscrew the three Phillips head (+) screws, setting them aside for reuse, and separate
the
MOTOR
from the
PLATE
.
2. Loosen
the
PULLEY SET SCREW
and remove the
PULLEY
from the
SHAFT
. Save the
PULLEY
.
3. Mount the new
MOTOR
to the
MOTOR PLATE
with the three Phillips head (+) screws
previously set aside.
C-24KC Benchtop Incubator Shaker
•
M1281-0050
User’s Guide
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