TM 9-2320-289-34
10-27. AIR CONDITIONER EXPANSION VALVE, ECAPORATOR, AND
RECEIVER-DEHYDRATOR REPLACEMENT (M1010) (Con’t).
7.
8 .
9 .
10.
11.
Disconnect condenser line (23) from receiver-dehydrator (14), Remove 2 screws (17),
washers (22), and receiver-dehydrator from air conditioner assembly (30). Remove and
discard preformed packing insert (27).
Drain and measure refrigerant oil from receiver-dehydrator (14).
Disconnect 2 drain hoses (28) from drain pan (33). Remove drain pan, Pull 2 drain hoses
through grommets in air conditioner assembly (30) and remove, Remove drain hose valve (26)
if damaged.
Disconnect leads from high pressure switch (25). Remove high pressure switch and core (24)
from condenser line (23),
Disconnect inlet line (19) from connector line (16). Remove 2 screws (3), washers (2), and
connector line. Remove and discard preformed packing insert (20) and preformed packing
insert (15).
b.
INSTALLATION
1.
2.
3.
4.
5.
6.
NOTE
• If installing drain pan (33) and drain hoses (28), perform step 3 and
steps 6 through 12.
• If installing receiver-dehydrator (1 4), perform steps 4, 5, and 11.
• If installing evaporator (1), perform steps 6-12.
l If installing expansion valve (1 O), perform steps 10-12,
• Ensure that all plugs are removed before connection,
l Ensure that “O” ring (9) and all preformed packing inserts (8, 12, 15,
20, 21, and 27) are coated with refrigerant oil before installation.
Install new preformed packing insert (20) in inlet line (19) fitting, Install new preformed packing
insert (15) in connector line (16) fitting. Install connector line with 2 washers (2) and screws
(3). Connect inlet line (19) to connector line,
Install core (24) and high pressure switch (25) on condenser line (23). Connect leads.
Install drain hose valve (26) if removed, Push 2 drain hoses (28) through grommets in air
conditioner assembly (30). Install drain pan (33), Connect 2 drain hoses to drain pan.
If old receiver-dehydrator (14) will be installed, add refrigerant oil to receiver-dehydrator equal
to amount drained. If new receiver-dehydrator will be installed, add refrigerant oil to
receiver-dehydrator equal to amount drained plus 2 oz. (0.118 1),
Install new preformed packing insert (27) in condenser line (23) fitting. Install
receiver-dehydrator (14) on air conditioner assembly (30) with 2 washers (22) and screws
(17). Connect condenser line to receiver-dehydrator.
If new evaporator (1) will be installed, add 3 oz. (0.177 1) of refrigerant oil to evaporator.
10-110
