Control Panel - Graco Reactor E-10hp Instructions Manual

Control Panel

Replace Temperature Display
NOTICE
Before handling board, put on a static conductive
wrist strap to protect against static discharge which
can damage board. Follow instructions provided with
wrist strap.
1. See Before Beginning Repair, page 40.
2. Remove screws (21) and display cover (26).
21
26
3. Put on static conductive wrist strap.
4. Disconnect main display cable (81) from upper right
corner of temperature display (353). See F
5. Remove jumper (373) from back of display (353).
Set aside and install jumper on new display.
6. Disconnect ribbon cable(s) (R) from back of display;
see F . 10.
IG
7. Remove nuts (360) from plate (351).
8. Disassemble display (353), see detail in F
9. Reassemble in reverse order, see F
medium strength thread sealant where shown.
332144E
Replace Function Knob/Potentiometer
1. See Before Beginning Repair, page 40.
2. Remove screws (21) and back cover (26).
3. Disconnect potentiometer wires from J5 on motor
4. See F
5. Remove nut (N, part of 357) and detent plate (358).
6. Install new potentiometer (357) in reverse order.
7. Reconnect potentiometer wires to J5.
ti21923a
P
. 10.
IG
F . 9: Function Knob/Potentiometer
IG
. 10.
IG
. 10. Apply
IG
control board (354). See F
. 9. Remove two setscrews (356a) and pull
IG
function knob (356) off potentiometer (357) shaft.
Position potentiometer so slot (S) is horizontal.
Position knob (356) so pointer (P) faces up. Install
knob on shaft so slot (S) engages alignment pin in
knob. Push knob onto shaft against detent spring
before tightening setscrews (356a).
356
356a
Repair
. 12, page 46.
IG
357
S
358
N
356a
ti21840a
43