AOpen DE7200 Series Instruções de Operação descarregar pdf (Página 63)

SECTION 5 - MAINTENANCE

31 Dec 13 5-1

DE-7200VFDCentrifuge

GENERAL

This section describes preventive and corrective maintenance procedures for the DE-7200 VFD

centrifuge. Obvious procedures are omitted. Before beginning any centrifuge maintenance, shut

down, lock out, and tag out equipment.

DANGER! HIGH VOLTAGE! SHUT DOWN, LOCK OUT, AND TAG OUT

ELECTRIC POWER, AND ENSURE THAT EQUIPMENT HAS STOPPED

ROTATING BEFORE WORKING ON THIS EQUIPMENT.

SAFETY GLASSES MUST BE WORN AT ALL TIMES WHILE PERFORMING ANY

MAINTENANCE PROCEDURE. FAILURE TO WEAR SAFETY GLASSES MAY

RESULT IN SERIOUS EYE INJURY OR PERMANENT LOSS OF VISION.

WARNING! WHILE OPENING AND CLOSING THE CENTRIFUGE COVER,

PERSONNEL MUST ENSURE THAT ALL BODY LIMBS AND ANY OTHER

ITEMS ARE CLEAR OF THE COVER GAP. TWO OPERATORS MUST BE USED,

WITH BOTH HANDS ON THE COVER HANDLES AT ALL TIMES. DERRICK

RECOMMENDS HAVING A HOIST AVAILABLE IF ADDITIONAL ASSISTANCE

IS DESIRED DURING THE OPENING/CLOSING PROCEDURE.

TOP COVER OPENING/CLOSING PROCEDURES

The proper procedures for opening and closing the top cover of the centrifuge must always be

followed. Two operators using both hands are required to open the cover. Derrick recommends

having a hoist available if additional assistance is desired during the opening/closing of the

centrifuge cover. To open and close the cover, proceed as follows:

1. Shut down, lock out, tag out electric power to centrifuge, and allow rotating assembly to coast

to a full stop.

2. Remove bolts securing cover to base.

3. Have two operators using both hands grip the cover handles securely to ensure full control of

the cover throughout the opening and closing process.

4. As the cover is raised, ensure that body limbs of all personnel and any other items remain

clear of the cover gap at all times.

5. Raise the cover to the fully opened position, and insert a 1/2” (12.7mm) hardened steel pin

through one hinge to lock the cover open.

6. After performing the activity that required the cover to be opened, reverse steps 2 through 5 to

close the cover. During the closing procedure, ensure that both operators are capable of

controlling the cover’s descent and that all body limbs and other items remain clear of the gap.

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