c. To avoid physical injury, never attempt to override the cover switch and lock
while the rotor is spinning.
1-8.
PREVENTIVE MAINTENANCE CHECKS AND SERVICES
NOTE:
Motors in both Models of the Dynac II Centrifuge incorporate permanently
lubricated bearings. No lubrication is required for the life of the machine.
a. Inspect Motor Brushes. Inspect the motor brushes for wear every six months.
Follow these procedures:
(1)
Remove the line cord from the power outlet.
(2)
Remove the rotor assembly and close and latch the centrifuge cover.
(3)
Rest the centrifuge on the edge of the front console and cover.
(4)
Remove the bottom cover and the drip pan plate.
(5)
Locate the brush caps on the sides of the motor housing.
(6) Unscrew the brush caps and remove the spring and brush assemblies.
Carefully note the orientation of the curved brush surface.
(7)
Inspect the brushes and replace if worn to a length of 6.3mm (1/4 inch) or
less.
(8)
If the brush is not worn, return it to the same position that you found it.
b. Clean the Centrifuge.. To clean the centrifuge, follow these procedures.
(1)
Wipe the interior and exterior with a damp cloth.
(2)
Clean stains using a mild detergent.
(3) Clean the transparent cover with a mild detergent. Do not use carbon
tetrachloride, chloroform, gasoline or acetone, or other chemicals such as aromatic
hydrocarbons (benzene, scene, xylene) and strong alkalies (sodium and ammonium
oxide). These can damage the cover.
Section II. PERFORM CALIBRATION/VERIFICATION
1-9.
SPECIFICATIONS
Specifications for the centrifuge speed follow.
MD0368
1-10
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