TM 10-5410-228-24
3.9.16 Condenser Coil/Oil Cooler Replacement - Continued.
NOTE
Plug open ports on oil cooler and open ends of tube assemblies to keep the hydraulic system
free of contaminants.
(3) Plug open end of tube assembly (2).
(4) Disconnect tube assembly (6) from tee (7) on oil cooler (4). Remove and discard O-ring (8) from
tee (7).
(5) Disconnect tube assembly nut (9) from reducer (10) on tee (7). Remove and discard O-ring (11)
from reducer (10).
(6) Plug open end of tube assembly (6).
Removal and brazing of refrigerant tube assemblies shall be in accordance with safety
requirements. All safety requirements applicable to brazing of tubes shall be observed.
Protect vibration absorber on R22 refrigerant tube assembly before unbrazing by wrapping
the vibration absorber with a wet rag.
(7) Unbraze R22 refrigerant tube assembly (12) from condenser coil (13).
NOTE
Plug open ports on condenser coil and open ends of R22 refrigerant tube assemblies to keep
the refrigerant system free of contaminants.
(8) Plug open port on condenser coil (13) and open end of R22 refrigerant tube assembly (12). Flow
nitrogen through condenser coil while unbrazing.
(9) Unbraze R22 refrigerant tube assembly (14) from condenser coil (13).
(10) Plug open port on condenser coil (13) and open end of R22 refrigerant tube assembly (14).
(11) Loosen screws on two clamps (15) securing two hoses (16 and 17) to drain trough (18). Slide two
hoses (16 and 17) off drain trough (18).
NOTE
Condenser coil/oil cooler assembly consists of condenser coil, oil cooler, and drain trough
assembled together.
(12) Remove ten screws (19) securing condenser coil/oil cooler assembly to ECU enclosure (20).
The condenser coil/oil cooler assembly is heavy. To prevent injury to personnel, two people
are required to lift condenser coil/oil cooler assembly.
(13) Remove condenser coil/oil cooler assembly from ECU enclosure (20).
(14) Remove six screws (21), six lockwashers (22) and six flat washers (23) securing drain trough (18)
to condenser coil (13). Discard six lockwashers (22).
(15) Remove eight screws (24), sixteen flat washers (25), eight lockwashers (26) and eight nuts (27)
securing oil cooler (4) to condenser coil (13). Discard eight lockwashers (26).
(16) Remove two screws (28) securing drain trough (18) to oil cooler (4).
(17)
Disconnect union (3) from oil cooler (4). Remove and discard O-ring (29) from union (3).
