12E5119 Instruction Manual QuickTOC
®
ultra
IECEx 189
8 Care and Maintenance
8.7 Perform Maintenance Actions
LAR | PROCESS ANALYSERS AG
6. Careful tighten the injection port by hand until slight resistance is felt (the injection port should point
to the front left at an angle).
7. Plug the injection port connector back in.
8. Attach the reactor foot seating to the reactor footplate using three M4x30 bolts.
9. Connect the teflon tube (PFA) to the screwed insert.
10. Screw the screwed insert into the reactor foot seating.
11. Plug the reactor foot onto the reactor pipe from below.
12. Screw on the four spacer bolts.
13. Pull the reactor foot down so that the gas path is not blocked by the reactor pipe.
14. Reattach the bottom grid.
15. Reattach the ventilation grid.
16. Dispose the old reactor pipe filling and, if necessary, the old reactor pipe.
17. Switch the furnace back on from the display “Service Actions” (Chapter 7.8.2 from page 118).
8.7.5 Replace Small Furnace Head Seal
Precondition: - Small furnace head seal is damaged.
1. Wear heat-resistant gloves.
2. Unplug the injection port connector.
3. Carefully undo in a crosswise sequence the screws of the furnace head.
4. Undo the tube from the tube connector.
5. Take the furnace head and injection port from the reactor pipe.
6. Undo the injection port on the furnace head by carefully turning it anticlockwise by hand.
7. Carefully remove the old, small furnace head seal (upper) from its groove using pliers or a small
slotted screwdriver.
8. Insert a new, small furnace head seal (upper) into the furnace head groove.
9. Place the furnace head onto the furnace and reactor pipe.
10. Connect the black tube to the tube connector provided.
11. Tighten in a crosswise sequence the attachment bolts of the furnace head with the furnace head
panel.
12. Careful tighten the injection port by hand until slight resistance is felt (the injection port should point
to the front left at an angle).
Notice
The reactor tube filling shown in Fig. 129, page 188, according to experience,
represents an excellent solution for the majority of applications.
However, some applications can be optimized by varying the listed default fill.
Any deviations from the standard filling should be discussed in advance with
LAR Technical Support (Chapter 15.1 on page 283) or with a LAR authorized
service partner.
As our research and development progresses, we encourage you to stay in
touch with your LAR contact to stay up-to-date with any additions.
Danger
Danger of burns
Allow the oven to cool completely (2 hours in total). One hour after switching
off the furnace, the temperature of the reactor tube is still about 400° C to
500° C!
Always use heat-resistant gloves when working on the stove.
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