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 b. Disassembly.
c. Inspection. Inspect recoil springs for damage
WARNING
and distortion. Free lengths are: Outer, 31.1 7-
32.23 inches; inner, 21.50-22.50 inches. Replace
The springs in the recoil spring
a distorted or damaged spring.
assembly are assembled under a force
of several tons. During the process of
d. Reassembly.
d i s a s s e m b l y and assembly, it is im-
(1) Position rear pilot (7) over the choke in the
perative that the proper tools be used in
press bed.,
the proper manner when performing
(2) Install recoil springs (4) and (5).
these operations.
(3) Install sleeve (7, fig. 7-29) in inner recoil
spring (3) and install front pilot (1).
(1) Remove bolt (1, fig. 7-28) and washer (2)
securing retaining nut (6) to recoil spring bolt (9).
(4) Fabricate guide pin (5), as illustrated in
(2) Install the recoil spring assembly in a
suitable press with rear pilot (7) positioned on the
(4).
press bed and front pilot (3) centered with the press
(5) Insert bolt (4, fig. 7-29) through front pilot
ram.
(1), sleeve (7) and rear pilot (6).
(6) Center the recoil spring assembly beneath
NOTE
the press ram and compress the assembly to
A press with a minimum throat depth of 35-inches is
assembled length measured from the rear face of
required to disassemble recoil spring assembly.
the front pilot to the front face of the rear pilot
(3) Apply enough pressure to the recoil spring
assembly to remove retaining nut (6).
(7) Remove guide pin (5). Install retaining nut
(4) Remove retaining nut (6).
(6, fig. 7-28)
(5) Back off the press ram to decompress the
recoil springs (4) and (5).
NOTE
Install bolt (1) and washer (2) to lock retaining nut
(6) Remove recoil spring bolt (9), front pilot
(6), after the recoil spring assembly has been installed
(3) and sleeve (8).
in the machine (A above).
(7) Attach a hoist and remove outer recoil
spring (4). Remove inner recoil spring (5).
1
Recoil spring front pilot
2
Idler recoil spring (outer)
3
Idler recoil spring (inner)
4
Recoil spring bolt
5
Guide pin
6
Recoil spring rear pilot
7
Recoil spring bolt sleeve
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