Figure 4-13. Removal and installation of solenoid valves (sheet 2 of 2)

TM 5-4120-356-14

REMOVAL OF PRESSURE EQUALIZER SOLENOID VALVE

REFER TO PARAGRAPH 4-14c FOR PRELIMINARY STEPS IN REMOVAL OF PRESSURE EQUALIZER VALVE.

REMOVE FOUR SCREWS (9) AND PULL PRESSURE SWITCH ENCLOSURE (10) TO THE SIDE TO PROVIDE

ACCESS TO THE PRESSURE EQUALIZER SOLENOID VALVE (7).

3. DISCONNECT ELECTRICAL PLUG (8).

CAUTION

THE PRESSURE EQUALIZER SOLENOID VALVE MUST BE

DISASSEMBLED BEFORE DISCONNECTING THE TUBING

FROM THE VALVE BASE TO AVOID HEAT DISTORTION.

4. DISCONNECT TUBING FROM VALVE BASE.

5. REMOVE TWO SCREWS (5) AND WASHERS (6) AND REMOVE VALVE BASE FROM AIR CONDITIONER.

INSTALLATION OF PRESSURE EQUALIZER SOLENOID VALVE

POSITION PRESSURE EQUALIZER SOLENOID VALVE BASE IN AIR CONDITIONER AND SECURE WITH TWO

WASHERS (6) AND SCREWS (5).

CAUTION

BRAZE THE TUBING TO THE VALVE BASE BEFORE RE-

ASSEMBLING THE VALVE TO AVOID HEAT DISTORTION.

CONNECT TUBING TO VALVE BASE AND BRAZE.

REFER TO VIEW A AND REASSEMBLE PRESSURE EQUALIZER SOLENOID VALVE.

4. CONNECT ELECTRICAL PLUG (8).

5. POSITION PRESSURE SWITCH ENCLOSURE (10) ON PANEL AND SECURE WITH FOUR SCREWS (9).

6. REFER TO PARAGRAPH 4-14c FOR FINAL STEPS IN INSTALLATION OF PRESSURE EQUALIZER SOLENOID

VALVE.

F i g u r e 4-13. Removal and installation of solenoid valves (sheet 2 of 2)

(d) Refer to figure 4-13 and remove the liquid line solenoid valve

from the air conditioner.

( 3 ) R e p l a c e . Replace the liquid line solenoid valve if evidence is

f o u n d of damage which would impair serviceability or if repair procedures fail to

m a k e the valve operable.

(4)

Installation.

(a) Refer to figure 4-13 and install the liquid line solenoid valve.

( b ) Perform any further maintenance o f refrigerant components re-

quired.

( c ) P u r g e t h e r e f r i g e r a n t s y s t e m i n a c c o r d a n c e with procedures out-

( d ) C h e c k t h e l i q u i d l i n e s o l e n o i d v a l v e a n d the dehydrator for

l e a k s in accordance with paragraph 4-4c. If any leak are f o u n d , repair in accord-

a x e with the procedures given in paragraph 4-4d.

( e ) Refer to figure 4-4 and evacuate the r e f r i g e r a n t

system.