TM 10-5410-228-24
3.9.3
Recirculation Fan/Motor Replacement Continued.
(25) Torque tube assembly (10) on reducing connector (11) to 320 25 in.-lb (27 2 ft-lb).
(26) Torque tube assembly (8) to 480 25 in.-lb (40 2 ft-lb).
(27) Check elbow (6) sealing surfaces for damage or material build up. If required, replace elbow (6)
or clean any material build up with clean, lint-free cloth.
(28) Lubricate O-rings (14 and 7) with a light coating of hydraulic fluid.
Ensure O-rings (14 and 7) are seated and retained properly.
(30) Coat male threads on elbow (6) with hydraulic fluid.
(31) Remove plug in port of hydraulic motor (3). Install elbow (6) on hydraulic motor (3), finger tight.
(32) Remove plug from tube assembly (5). Check tube assembly (5) sealing surfaces for damage or
material build up. Clean any material build up with clean, lint-free cloth. If required, replace
tube assembly (5) per para 3.9.11.
(33) Install tube assembly (5) on elbow (6), finger tight. Adjust position of tube assembly (5) and
elbow (6) as required.
(34) Torque tube assembly (5) to 480 25 in.-lb (40 2 ft-lb).
(35) Torque elbow (6) on hydraulic motor (3) to 1,680 75 in.-lb (140 6 ft-lb).
(36) Check elbow (2) sealing surfaces for damage or material build up. If required, replace elbow (2)
or clean any material build up with clean, lint-free cloth.
(37) Lubricate O-rings (13 and 4) with a light coating of hydraulic fluid.
Ensure O-rings (13 and 4) are seated and retained properly.
(39) Coat male threads on elbow (2) with hydraulic fluid.
(40) Remove plug in port of hydraulic motor (3). Install elbow (2) on hydraulic motor (3), finger tight.
(41) Remove plug from tube assembly (1). Check tube assembly (1) sealing surfaces for damage or
material build up. Clean any material build up with clean, lint-free cloth. If required, replace
tube assembly (1) per para 3.9.11.
(42) Install tube assembly (1) on elbow (2), finger tight. Adjust position of tube assembly (1) and
elbow (2) as required.
(43) Torque tube assembly (1) to 480 25 in.-lb (40 2 ft-lb).
(44) Torque elbow (2) on hydraulic motor (3) to 1,680 75 in.-lb (140 6 ft-lb).
Recirculation Fan.
NOTE
Remove/disassemble only to the extent necessary to remove or replace defective
assemblies/components. Use standard maintenance shop practices/procedures.
a. Removal (Refer to Figure 3-8)
(1)
Loosen setscrew (27) on coupling (19) and pry rear half of coupling back on shaft.
(2)
Remove four screws (28), four lockwashers (29), and four flat washers (30) securing recirculation
fan (31) to blower mount (32). Discard four lockwashers (29).
