PerkinElmer PINAACLE 900 Series, Customer Hardware And Service Manual

Page: 324 / 390

308
Maintenance
2. Disconnect the normal gas tube from the inlet manifold on the power
unit:
Carefully push the black locking ring of the connector into the connector
and pull the tube out of the connector. This releases the gas pressure.
3. Pull the right-hand furnace block by hand to the side.
The graphite tube is now accessible.
4. Remove the graphite tube.
Do not touch the graphite tube with bare fingers.
6. Very carefully, using a small screwdriver, lever the graphite shield ring from
the left-hand contact.
Figure 6-61. Contact change
To remove the right-hand contact:
1. Take the contact installation tool provided and slide the dome-shaped extractor
onto the bolt. Pass the bolt from the internal side of the furnace through the
Item Description
1 Graphite shield ring
1