Graco Reactor E-10hp Instructions Manual page 49

Thermocouple
1. See Before Beginning Repair, page 39.
2. Wait for the heaters to cool.
3. Remove the heater shroud (90) and the electronics
cover (55). See F . 13, page 46.
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4. Loosen and remove the temperature control module
bracket mounting fasteners (56). Move the control
module up and out of the way to access the
thermocouple.
5. Disconnect the thermocouple wires from B on the
temperature control module. See Temperature
Control Modules Connections, page 47.
6. Clip the cable ties as necessary. Note the path as
wires must be replaced in the same way.
7. See F . 16. Loosen the ferrule nut (N). Remove the
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thermocouple (310) from the heater housing (301),
then remove thermocouple housing (H). Do not
remove the thermocouple adapter (305) unless
necessary. If the adapter must be removed, ensure
that the mixer (309) is out of the way when replacing
the adapter.
S
T
309
F . 16 Thermocouple
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332144H
310
N
H
305
1
8. Replace the thermocouple, F
a. Remove the protective tape from the
thermocouple tip (T).
b. Apply PTFE tape and thread sealant to male
threads and tighten the thermocouple housing
(H) into the adapter (305).
c. Push in the thermocouple (310) so the tip (T)
contacts the heater element (307).
d. Holding the thermocouple (T) against the heater
element, tighten the ferrule nut (N) 1/4 turn past
tight.
9. Route the wires (S) into the cart and thread into a
bundle as before. Reconnect the wires to the board.
10. Replace the heater shroud (90) and the electronics
cover (55). See F . 13, page 46.
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11. Turn on the heaters ISO and RES simultaneously to
test. Temperatures should rise at same rate. If one
heater is low, loosen the ferrule nut (N) and tighten
the thermocouple housing (H) to ensure the
thermocouple tip (T) contacts the element (307).
1
Apply PTFE tape and thread sealant.
2
Apply 110009 thermal heatsink compound.
301 307
2
Repair
. 16.
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308
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