Chapter 2, Machine Part Replacement Reference
2-15
8. Test the position of the two cover halves when closed against the
cover latch.
Cover Switch Assembly
1. Remove the centrifuge from the cabinet.
2. Remove the (2) #4 socket head screws or Phillips head screws
securing the cover switch assembly to the centrifuge well.
3. Pull the cover switch assembly away from the centrifuge well.
Cover Switch Reassembly Notes
1. The cover switch assembly mounting position is a calibration step.
2. Set switch engagement of cover switch assembly to the bottom of the
shaft so that there is 3/8 to 5/8 clockwise turn of the centrifuge knob
after both switches have been disengaged.
Cover Latch
Note:
The cover latch is not designed for disassembly. These instructions
are provided in case the cover latch requires replacement.
1. Remove the knob disk. This can be accomplished by placing a thin
flat screwdriver in the gap between the knob disk and the knob and
tapping on the back of the handle of the screwdriver until the cap
detaches from the knob.
Note:
The knob disk is loctited to the knob. It may be difficult to detach
and require more force to separate it from the knob. Do not worry
about damaging these components as they are going to be replaced.
2. Remove the centrifuge from the cabinet.
3. Remove the cover switch assembly from the centrifuge.
4. Remove the knob by unscrewing the retaining screw and unscrewing
the knob from the centrifuge lock shaft.
5. Twist the centrifuge shaft spacer counterclockwise using vice grips or
locking pliers. As the centrifuge shaft spacer is removed, the
centrifuge lock shaft will drop out from the bottom of the centrifuge
cap assembly. Save the spring for reuse with replacement parts.
6. Place the compression spring on the replacement lock shaft and insert
it into the centrifuge cap assembly.
7. Prime and loctite the lock shaft threads at the base only, and then
screw the centrifuge shaft spacer (threads up) on the lock shaft until
the spacer bottoms out. Be sure that no loctite is touching the
centrifuge cap assembly where the shaft and the spacer come into
contact with the centrifuge cap assembly.
