Control Panel - Graco Reactor E-10hp Instructions Manual

Repair

Control Panel

Replace Temperature Display
Before handling the board, put on a static conductive
wrist strap to protect against static discharge which
can damage the board. Follow the instructions
provided with your wrist strap.
1. See Before Beginning Repair, page 39.
2. Remove screws (21) and display cover (26).
21
26
3. Put on a static conductive wrist strap.
4. Disconnect the main display cable (81) from the
upper right corner of the temperature display (353).
See F . 10, page 43.
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5. Remove the jumper (373) from the back of the
display (353). Set aside and install the jumper on
the new display.
6. Disconnect the ribbon cable(s) (R) from the back of
the display; see F
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7. Remove the nuts (360) from the plate (351).
8. Disassemble the display (353), see detail in F
page 43.
42
NOTICE
. 10, page 43.
9. Reassemble in reverse order, see F
Apply medium strength thread sealant where
shown.
Replace Function Knob/Potentiometer
1. See Before Beginning Repair, page 39.
2. Remove the screws (21) and the back cover (26).
3. Disconnect the potentiometer wires from J5 on the
motor control board (354). See F
4. See F
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the function knob (356) off of the potentiometer
(357) shaft.
5. Remove the nut (N, part of 357) and the detent plate
(358).
6. Install the new potentiometer (357) in reverse order.
Position the potentiometer so the slot (S) is
horizontal. Position the knob (356) so the pointer (P)
faces up. Install the knob on the shaft so the slot (S)
engages the alignment pin in the knob. Push the
knob onto the shaft against the detent spring before
tightening the setscrews (356a).
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7. Reconnect the potentiometer wires to J5.
P
. 10,
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356a
F . 9 Function Knob/Potentiometer
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. 9. Remove two setscrews (356a) and pull
N
356
356a
. 10, page 43.
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. 12, page 45.
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357
S
358
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