Repair
313540L
39
Thermocouple
1. Turn main power OFF
. Disconnect power
supply.
2. Relieve pressure, page 28.
3. Wait for heaters to cool.
4. Remove heater shroud.
5. Disconnect thermocouple wires from B on tempera-
ture control module. See T
6. Feed thermocouple wires out of cabinet. Note path
as wires must be replaced in the same way.
7. See F
. 10. Loosen ferrule nut (N). Remove ther-
mocouple (410) from heater housing (401), then
remove thermocouple housing (H). Do not remove
the thermocouple adapter (405) unless necessary. If
adapter must be removed, ensure that mixer (409)
is out of the way when replacing the adapter.
8. Replace thermocouple, F
a. Remove protective tape from thermocouple tip
(T).
b. Apply PTFE tape and thread sealant to male
threads and tighten thermocouple housing (H)
into adapter (405).
c. Push in thermocouple (410) so tip (T) contacts
heater element (407).
d. Holding thermocouple (T) against heater ele-
ment, tighten ferrule nut (N) 1/4 turn past tight.
9. Route wires (S) into cabinet and thread into bundle
as before. Reconnect wires to board.
10. Replace heater shroud.
11. Turn on heaters A and B simultaneously to test.
Temperatures should rise at same rate. If one
heater is low, loosen ferrule nut (N) and tighten ther-
mocouple housing (H) to ensure thermocouple tip
(T) contacts element (407).
F
IG
. 10. Thermocouple
409
401
S
N
H
T
407
Apply PTFE tape and thread sealant.
1
1
408
ti7924a
Apply 110009 thermal heatsink compound.
2
2
410
405
Содержание Reactor H-VR
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