suppressor, the front sight bipod assembly, and the gas
cylinder. To remove the assembly, raise the barrel lock
lever to the vertical position and remove the barrel
assembly by pulling it to the front as shown in figure
General disassembly to this point leaves the
receiver group, the cover assembly and cartridge tray
assembly groups, and the forearm intact, and is
sufficient for general maintenance and cleaning of the
M60 machine gun.
Assembly
The assembly procedures for the M60 machine gun
are basically the reverse of the steps taken during
disassembly. Starting with the receiver, attach each
group and assembly in the following manner:
1. Make sure the barrel lock lever is in the vertical
position, as shown in figure 2-59. Insert the rear of the
barrel under the barrel cover and align the gas cylinder
nut with its recess in the forearm assembly. Lower the
barrel lock lever.
2. Engage the holding notch of the trigger housing
in its recess in the bottom of the receiver (fig. 2-58, view
Figure 2-58.--Removing the trigger mechanism grip group.
B). Rotate the front of the trigger housing up and align
the holes of the trigger housing with the mounting
bracket on the receiver. Insert the trigger housing pin
from the left. Engage the rear of the leaf spring with the
When the operating rod and bolt are exposed
sear pin (fig. 2-58, view A). Make sure the leaf spring is
approximately 4 inches to the rear of the receiver, grasp
positioned so that the bent portion is pressed against the
them securely to prevent the bolt from turning in, and
side of the trigger housing. Rotate the front of the leaf
remove them from the receiver (fig. 2-57, view B).
spring up and engage it with the trigger housing pin.
Relax your grip and allow the bolt to rotate slowly. It is
not necessary to separate the bolt from the operating
3. Insert the end of the operating rod into the
rod.
receiver. Hold the rod with one hand. With the other
hand, push forward on the rear of the bolt, causing the
REMOVING THE TRIGGER MECHANISM
bolt to rotate until the locking lugs are in the vertical
GROUP.--The trigger mechanism grip group consists
position. With the cam roller up, push the operating rod
of the trigger mechanism grip assembly (trigger
housing, sear, sear pin, sear plunger, sear plunger
spring, trigger pin, and trigger), trigger housing pin
(interchangeable with the sear pin), and leaf spring. To
remove the group, press in on the front of the leaf spring
and rotate the front end down to clear it from the trigger
housing pin as shown in figure 2-58, view A. Pull
forward to disengage the rear notch from the sear pin.
Remove the trigger housing pin by pushing it to the left.
Slide the trigger housing slightly forward, rotate the
front of the housing down, and remove it (fig. 2-58,
view B).
REMOVING THE BARREL ASSEMBLY.--
The barrel assembly consists of the barrel, the flash
Figure 2-59.--Removing the barrel assembly.
2-31
