Graco Reactor E-20 PH9030 — инструкция по ремонту модулей отображения температуры и давления [48/76]

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Graco Reactor E-20 PH9025 [48/76] Red stop button
Repair
48 312066ZAF
Display Module
Temperature and Pressure Displays
1. Turn main power OFF . Disconnect power
supply.
2. Perform the Pressure Relief Procedure, page 25.
3. Refer to electrical diagrams.
4. Put on static conductive wrist strap.
5. Disconnect main display cable (20) at lower left
corner of display module; see FIG. 11.
6. Remove screws (509, 510) and cover (504); see
FIG. 11.
NOTE: If replacing both displays, label temperature
display cables TEMP and pressure display cables
PUMP before disconnecting.
7. Disconnect cable connectors (506 and 511) from
back of temperature display (501) or pressure
display (502); see FIG. 11.
8. Disconnect ribbon cable(s) (R) from back of display;
see FIG. 11.
9. Remove nuts (508) and plate (505).
10. Disassemble display, see detail in FIG. 11.
11. Replace board (501a or 502a) or membrane switch
(501b or 502b) as necessary.
12. Reassemble in reverse order, see FIG. 11. Apply
medium strength thread sealant where shown. Be
sure display cable ground wire (G) is secured
between cable bushing and cover (504) with screws
(512).
Red Stop Button
1. Turn main power OFF . Disconnect power
supply.
2. Perform the Pressure Relief Procedure, page 25.
3. Refer to electrical diagrams.
4. Put on static conductive wrist strap.
5. Remove screws (509, 510) and cover (504), FIG.
11.
6. Disconnect button cable connectors (506) from back
of temperature display (501) and pressure display
(502).
7. Remove red stop button (506).
8. Reassemble in reverse order. Be sure display cable
ground wire (G) is secured between cable bushing
and cover (504) with screws (512).
CAUTION
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.
CAUTION
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.

Содержание

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Подробная инструкция по ремонту модулей отображения температуры и давления. Узнайте, как безопасно отключить и заменить компоненты с минимальными рисками.