TM 10-5410-228-24
3.9.3
Recirculation Fan/Motor Replacement Continued.
NOTE
Plug open ports on hydraulic motor and open ends of tube assemblies to keep the hydraulic
system free of contaminants.
(5)
Plug open ends of four tube assemblies (1, 5, 8, and 10).
NOTE
Remove two elbows, tee, and connector from hydraulic motor prior to removing hydraulic
motor from ECU. Otherwise, a vise will be required to hold hydraulic motor.
Plug open ports on hydraulic motor and open ends of tube assemblies to keep the hydraulic
motor free of contaminants.
(6)
Remove elbow (2) from hydraulic motor (3). Remove and discard O-ring (13) from elbow (2). Plug
open port on hydraulic motor (3).
(7)
Remove elbow (6) from hydraulic motor (3). Remove and discard O-ring (14) from elbow (6). Plug
open port on hydraulic motor (3).
(8)
Remove reducing connector (11) from tee (9).
(9)
Remove and discard two O-rings (15) from tee (9).
(10) Remove tee (9) from connector (16).
NOTE
Plug open ports on hydraulic motor and open ends of tube assemblies to keep the hydraulic
system free of contaminants.
(11) Remove connector (16) from hydraulic motor (3). Remove and discard two O-rings (17) from
connector (16). Plug open port on hydraulic motor (3).
(12) Loosen setscrew (18) on coupling (19).
(13) Remove two screws (20), four flat washers (21), two lockwashers (22) and two nuts (23) securing
hydraulic motor (3) and motor mount plate (24) to ECU enclosure (25). Discard two lockwashers
(22).
(14) Remove coupling (19) from hydraulic motor (3). Remove hydraulic motor (3) from ECU enclosure
(25).
(15) Remove machine key (26) from shaft of motor (3). Discard machine key (26).
b. Installation (Refer to Figure 3-8)
Alcohol solvents are flammable and give off harmful vapors. Use solvents sparingly and only
in well ventilated area. Avoid prolonged breathing of vapors. Keep away from heat, sparks,
open flames.
(1)
Clean mating surfaces of motor mount plate (24) and ECU enclosure (25) with rag dampened
with alcohol before applying sealer.
Wear gloves when working with sealers. Use in well ventilated area. Avoid prolonged contact
with skin.
(2)
Coat mating surfaces of motor mount plate (24) and ECU enclosure (25) with sealer.
3-46
