MAINTENANCE
Chapter 6
............
Sievers TOC-R3 Operation and Maintenance Manual
DLM 95000-01 EN Rev. A 201 © Veolia 2023
1. Prepare the Analyzer for maintenance. For more information, see “Quick
Maintenance Procedures” on page 185.
2. Turn the Furnace Power OFF from the Menu → Service → Furnace Control screen,
if not already done.
3. Allow the Analyzer to cool down completely before performing this task. This could
take up to 8 hours. To check the Furnace temperature while the Furnace Power is
“Off”, see “To check the Furnace Temperature while the Furnace is Off” on page 147
.
• Furnace Cooling Guidance: Turn the Furnace Off and open the Analyzer door.
Allow the Analyzer to remain On so the Carrier Gas continues to flow into the
Furnace, thus cooling it down faster. After 5.5 hours, the Furnace will be below
148 °C (300 °F). Always wear appropriate PPE if handling components that are
hotter than room temperature.
4. Put on the appropriate thermal protection PPE, if the Analyzer is not completely
cooled down.
5. Open the Analyzer door.
6. Locate the Injection Needle and Furnace Head Assembly on top of the Furnace.
7. Remove the Injection Needle and Furnace Head Assembly as one unit.
A. With one hand, carefully loosen the blue Injection Block Compression Fitting
at the top of the Injection Needle, just below the Injection Block.
B. While holding the Injection Needle in one hand, slightly loosen the red
Furnace Head Compression Nut with the other. Important! Do not let go of
the Injection Needle! It will fall into Furnace Cartridge! Loosen the
compression nut just enough to push the needle downward about 1 - 2 cm into
the Furnace and then tighten the compression nut again. This provides
clearance above the Injection Needle for easier removal. Important! Do not
loose the clear ferrule [14B] on the top of the Injection Needle! See
Figure 6-9 on page 203
.
C. From the top left corner of the Furnace, disconnect the Wing Screw securing
the Furnace in its upright position. Do not lose this hardware!
Caution! Possible pinch point when accessing the Furnace! Keep hands
away from the hinge!
Caution
The Furnace is On and the Injection Needle and Furnace Head Assembly
are both hot. Use gloves that offer thermal protection from hot parts.
Warning
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