TM 5-5420-209-12
4-52. Hydraulic System Pump and Bracket. - Continued
b. Replace. (figure 4-70)
WARNING
When disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray out
due to residual pressure in system.
NOTE
When removing hoses, have a suitable container to drain oil from hoses. Also cap all hoses and ports
immediately to prevent dirt or foreign matter from entering the system.
There are two different pump models used. The replacement procedures are the same for both models.
The location of hydraulic lines are different between models.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
Tag and disconnect two hydraulic lines (1) from hydraulic pump (2).
Loosen set screw (3).
Support hydraulic pump (2) and drive shaft (5).
Remove two nuts (6), washers (7), screws (8), and hydraulic pump (2).
Remove key (10) from pump shaft (11).
Remove four nuts (12), washers (13), screws (14), and bracket (9).
Inspect bracket (8) and replace if cracked or other wise damaged.
Install bracket (9) and secure with four screws (14), washers (13), and nuts (12).
Install key (10) onto pump shaft (11).
Aline key (10) with slot in yoke (15).
Install pump (2) and secure with two screws (8), washers (7), and nuts (6).
Tighten set screw (3).
Apply antiseize tape to hydraulic lines fittings and connect two hydraulic lines (1) hydraulic
pump (2) as tagged.
4-202
