Low Pressure Cut-Out Switch

TM 5-4120-356-14

(e) Refer to figure 4-4 and evacuate the refrigerant system.

(f) Refer paragraph 4-10 and charge the system with refrigerant.

(1) Removal. (See figure 4-8.)

(2) Test. (See figure 4-10.)

( 3 ) R e p l a c e . R e p l a c e low pressure cut-out switch if damage to the switch

would impair serviceability or if switch fails during test.

(4)

Installation.

(a) Refer to figure 4-8 and install the low pressure cut-out switch.

( b ) Perform any further maintenance of refrigeration system com-

ponents

required.

( 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 accordanc e wit h th e proce d u r e s

( d ) Check the low pressure cut-out switch and dehydrator for re-

f r i g e r a n t leaks in accordance with paragraph 4-4c.

R e p a i r any leaks found in accor-

(e) Refer to figure 4-4 and evacuate the refrigerant system.

( f ) Charge the system with refrigerant in accordance with paragraph

4-10.

P r e s s u r e Control Switch

(1) Removal. (See figure 4-8.)

(2) Test. (See figure 4-11.)

( 3 ) R e p l a c e . R e p l a c e the pressure control switch if damage to the switch

would impair serviceability or if switch fails during test.

(4)

Installation.

(a) Refer to figure 4-8 and install the pressure control switch.

( b ) Perform any further maintenance of refrigeration system com-

ponents

required.

( c ) P u r g e t h e r e f r i g e r a n t sy s t e m in ac c o r d a n c e wi t h th e proce d u r e s

(d) Check the pressure control switch and dehydrator for leaks in

a c c o r d a n c e with paragraph 4-4c. R e p a i r any leaks found in accordance with paragraph

(e) Refer to figure 4-4 and evacuate the refrigerant system.