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Graco Reactor E-20 Series User Manual

Graco Reactor E-20 Series
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Repair
44 312066ZAD
Thermocouple
1. Turn main power OFF . Disconnect power
supply.
2. Relieve pressure, page 26.
3. Wait for heaters to cool.
4. Remove heater shroud.
5. Disconnect thermocouple wires from B on tempera-
ture control module. See TABLE 5, page 40 and FIG.
5, page 40.
6. Feed thermocouple wires out of cabinet. Note path
as wires must be replaced in the same way.
7. See FIG. 7. Loosen ferrule nut (N). Remove thermo-
couple (310) from heater housing (301), then
remove thermocouple housing (H). Do not remove
the thermocouple adapter (305) unless necessary. If
adapter must be removed, ensure that mixer (309)
is out of the way when replacing the adapter.
8. Replace ther mocouple, F
IG.7.
a. Remove protective tape from thermocouple tip
(T).
b. Apply PTFE tape and thread sealant to male
threads and tighten ther mocouple housing (H)
into adapter (305).
c. Push in thermocouple (310) so tip (T) contacts
heater element (307).
d. Holding ther mocouple (T) against heater ele-
ment, tighten ferrule nut (N) 1/4 tur n 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 ther mocouple tip
(T) contacts element (307).
FIG. 7. Thermocouple
309
301
S
N
H
T
307
Apply PTFE tape and thread sealant.
1
1
308
ti7924a
Apply 110009 thermal heatsink compound.
2
2
310
35

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Graco Reactor E-20 Series Specifications

General IconGeneral
BrandGraco
ModelReactor E-20 Series
CategoryPaint Sprayer
LanguageEnglish

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