Graco 249570 A, Инструкция-перечень запасных частей

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Repair
40 311075ZAB
Replace Function Knob/Potentiometer
1. Follow Before Beginning Repair , page 36.
2. Follow the Pressure Relief Procedure , page 22.
3. Remove the access cover (39) from the back of the
control module.
4. Disconnect the potentiometer wires from J2 on the
control board (406). See F
IG
. 14, page 42.
5. See F
IG
. 13. Remove the two setscrews (416a) and
pull the function knob (416) off of the potentiometer
(404) shaft.
6. Remove the nut (N, part of 404) and the detent plate
(415).
7. Install the new potentiometer (404) in reverse order.
Position the potentiometer so the slot (S) is
horizontal. Position the knob (416) so the pointer (P)
faces up. Install the knob on the shaft so the slot (S)
engages the alignment pin in knob. Push the knob
onto the shaft against the detent spring before
tightening the setscrews (416a).
8. Reconnect the potentiometer wires to J2 as shown
in F
IG
. 14, page 42.
F
IG
. 13 Control Module (Heated Model Shown)
405
416a
416
416a
415
417
406
407
408
412
411
410
409
*403
421
401
404
402
410*
TI6979a
424*
*402
413
CS
FC
*424
FC
CS
N
* These items are not included on the nonheated display.
416a
416a
416
404
415
N
P
S
Detail of Function Knob/Potentiometer
TI7076a