TM 5-4220-233-14
NOTE
When a spring needs replacing both springs should be replaced. In addition, both
shock absorbers and rubber bumpers installed between spring and chassis should
be replaced
(1) Lower sandshoes on rear swivel jacks (1) until tension is removed from springs but with tires still contacting
the ground.
(2) Remove four nuts (2) and two "U" bolts (3) then remove tie plate & stud assembly (4) from bottom of axle
(5).
(3) Remove two bolts (6) and two nuts (7) to separate front spring hanger (8) from chassis.
(4) Remove cotter pin (9) and clevis pin (10) to separate spring (11) from rear spring hanger (12). Discard
cotter pin.
(5) Use rear swivel jack next to spring being replaced to raise trailer far enough to lift center pin on spring (11)
out of axle (5).
(6) Remove bolt (13) and nut (14) then separate front spring hanger (8) from spring.
(7) Remove nut (15) and separate rubber bumper (16) from mounting bracket (17). Discard rubber bumper.
(8) Clean and inspect all removed parts as prescribed in paragraphs 4-15 and 4-16.
b.
Installation.
Figure 4-33. Install Springs.
(1) Install new rubber bumper (16) onto mounting bracket (17) and secure with nut (15).
(2) Install front spring hanger (8) on new spring (11) and secure with bolt (13) and nut (14).
(3) Secure spring (11) to rear hanger bracket with clevis pin (10) and cotter pin (9).
(4) Secure front spring hanger (8) to chassis with two bolts (6) and two nuts (7).
(5) Use swivel jack to lower trailer until spring (11) and axle (5) are mated with pin on spring in hole on axle
(4).
(6) Position tie plate & stud assembly (4) under axle (5) and secure with two "U" bolts (3) and four nuts (2).
(7) Repeat removal and installation procedure for other spring.
(8) Install new shock absorbers as prescribed in paragraph 4-45.
4-73
