TM 5-3820-233-12/1
4-61. Reciprocating Feeder
4-62. Support Shafts
The reciprocating feeder located on the primary unit
The feeder plate is supported by two shafts on which the
receives raw aggregate from a truck or shovel and
plate moves back and forth with the action of eccentric
maintains a uniform flow to the jaw crusher. It provides a
drive mechanism.
a. Removal. Refer to figure 4-56 and remove
means of regulating rate of feed and permits fine and
undersized rock to bypass the jaw crusher.
The
support shafts as follows:
reciprocating feeder consists of a main hopper through
(1) Block feeder plate before shaft removal.
which aggregate flows onto the feeder plate. The feeder
(2) Remove capscrews (8) from hopper frame.
plate is mounted on shafts which allow the feeder plate
(3) Lift shaft and bearings from plant.
to move back and forth with a reciprocating motion
(4) Remove to clean area and pull bearings from
imparted by the eccentric driving mechanism. The
shaft.
b. Inspection.
discharge end of the feeder plate is fitted with grizzly
bars which allows fines and undersized rock to drop
(1) Inspect shafts for wear or damage and
through, by-passing the jaw crusher. The eccentric
replace if necessary.
mechanism is driven from the jaw crusher shaft through
(2) Inspect bearings for wear and replace if
an intermediate countershaft. This mechanism is
necessary.
fastened to the feeder plate recoil spring assembly. The
(3) Inspect shaft collar shear pin (fig. 4-56). If
clutch located on the intermediate countershaft starts or
sheared, replace.
stops the eccentric drive mechanism.
c. Installation. Refer to figure 4-56 and install in the
reverse procedure of removal.
4-52
