Barnstead Thermolyne Corporation HP18325 Manual de instrucciones y lista de piezas - Página 11

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Replacing adjusting-shaft insulator

1. Disconnect hot plate from power supply.

2. Turn hot plate upside down and remove

bottom cover.

3. Remove the retaining clip.

Loosen set screw on stop collar and turn

the adjusting shaft out of the control to

remove insulator.

Insert new insulator. Turn the adjusting

shaft into the control until the contacts

make contact. (Note: Be sure that the

washer/spacer is still positioned against

the backside of the knob.)

6. Slide stop collar back against spring.

Reinstall retaining clip.

7. Turn shaft out until .015" dimension is

achieved, as shown.

8. Recalibrate the control according to the

"Recalibrating the Control" section.

Replacing heater coil

1. Disconnect hot plate from power supply.

2. Turn hot plate upside down and remove

bottom cover.

3. Remove nut and washer from contact

stud, then remove one end of heater coil.

AINTENANCE AND

ERVICING