LESSON 1
PERFORM PREVENTIVE MAINTENANCE CHECKS AND SERVICES AND
Section I. PERFORM PREVENTIVE MAINTENANCE CHECKS AND SERVICES
1-1.
GENERAL
The DYNAC II Centrifuge is a multi-purpose machine. It is designed for use in
clinical laboratories for frequently performed separations in hematology, chemistry,
urinalysis, blood banking, micro-biology, and cytology. It is equally useful in the
physician's and veterinarian's office, particularly where moderate-to-large numbers of
Wintrobe hematocrits, urine and fecal sedimentations, and serum/plasma separations are
performed. Additional applications for the centrifuge are in industrial and university
laboratories for many general procedures in chemistry, pharmacology, food processing,
and agriculture. Because of its compact size, the centrifuge will fit into most standard size
refrigerators or can be placed in a cold room for low temperature centrifugations.
1-2.
DESCRIPTION
a. Safety Requirements. The Dynac II Centrifuge was designed to meet the
electrical safety requirements of Underwriters' Laboratories (UL) and Canadian Safety
Association (CSA). Other advanced safety features to protect the operator are also
incorporated to fulfill the safety standards of OSHA.
b. Guard Bowl. The centrifuge incorporates a one-piece aluminum guard bowl
attached to a stable base assembly. The guard bowl, which is of heavy gauge
construction, affords maximum protection to the operator. The finish is baked enamel
inside and out to facilitate cleaning.
c. Motor. The centrifuge motor is attached to a mounting plate which is
shock-mounted to the base by means of three vibration isolators. Four rubber feet are
bolted to the bottom of the base plate. The motor incorporates permanently lubricated
bearings. The cord set is a 6-foot, heavy duty, 3-wire grounded cord.
d. Rotors. Any of four swing-out horizontal rotors and four 52 angle rotors can be
used in the centrifuge. Various shield configurations are available to accommodate tube
sizes ranging from 1 milliliter (ml) to 100ml. This permits the centrifuge to be used for a
variety of micro and semi-micro work. You can easily install and lock on rotors to the
centrifuge shaft by means of a drive pin and thumb screw. Shield positions in all rotors are
clearly numbered for positive identification of tubes.
MD0368
1-2