TM   9-2330-272-14 S e c t i o n     X .     S P R I N G S     M A I N T E N A N C E Page Paragraph Title Number Spring Replacement . . . . . . . . . . . . . . . . . . . 4-104 Spring Seat Replacement . . . . . . . . . . . . . . 4-107 Torque Rod Replacement. . . . . . . . . . . . 4-110 4-52.    SPRING    REPLACEMENT. This  Task  Covers: a. Removal b. Installation Initial  Setup: Equipment Conditions: Materials/Parts: “ Hydraulic Iines removed from rear axle (para 4-34). l  Six  Iockwashers Tools/Test Equipment: Personnel Required:  Two l Common no. 2 shop set a. REMOVAL 1. 2. 3. 4. 5. 6. 7. 8. 4-104 Position semitrailer on hard level surface with front resting on landing gear. Ensure that air reservoir is drained. Raise forward-rear and rear axles on side where spring is to be removed. Jacks should repositioned as close as possible to lower torque rod brackets on axles. Position floor jack under torque rod bracket on cross tube. Raise cross tube until weight of semitrailer is off spring to be removed. Place supports under rear corners of semitrailer frame. Remove wheels from both axles (para 4-43). Remove four nuts (7), Iockwashers (6), and two U-bolts (1) from spring (10) and spring seat (5). Remove spring seat  saddle  (11)  from  spring.  Discard  Iockwashers. WARNING If spring is seized in spring seat, raise rear axle to lift spring. Be careful not to lift semitrailer off supports under frame. Remove two screws (9) and Iockwashers (8) from spring seat (5) and lift spring (10) from seat. Discard Iockwashers. Disconnect upper torque rod from bracket on rear axle (para 4-54).