Section VII. FRONT MOUNTING BRACKETS AND MOLDBOARD
3-91. General.
3-92. This section covers the description and
38, view B.
maintenance of the front mounting bracket and
e. Disconnect inner tilt arms from hull as shown in
moldboard.
Organizational maintenance of the
components consists of: replacement of moldboard
f. Raise bottom edge of moldboard with rams, or
assembly, tilt arms and push beams; replacement of
jacks, while maintaining slack in hoist chains and tilt
emergency lifting cables; and replacement of carrying
moldboard face toward ground. When maximum tilt is
hooks and shafts.
obtained, lower rams until bottom edge of moldboard
3-93. Description.
rests on ground.
3-94. The front mounting brackets and moldboard
Remove slack in hoist chains.
consist essentially of heavy-duty moldboard
and
cutting edge supported by a parallelogram linkage
3-40, view D.
attached by retaining pins to mounting brackets located
h. Disconnect push beams from hull brackets as
on the front lower glacis of the vehicle hull. The
shown in figure 3-40, view E.
parallelogram linkage is composed of two push beams
i. Raise cylinder rams and secure them in raised
(left and right) and four tilt arms (left and right outboard
position with straps.
and left and right inboard). Up-down motion of the
moldboard
is accomplished by
two hydraulically
arms and push beams from moldboard assembly.
operated double-acting cylinder and ram assemblies.
The ram ends are connected by pivot pins to the push
3-97. Installation . To install moldboard assembly to
beams.
the vehicle, proceed as follows:
3-95. Replacement of Moldboard Assembly, Tilt
a. Install tilt arms and push beams to moldboard
(refer to figure 3-41, view 1).
Arms and Push Beams.
b. Park vehicle on level terrain.
3-96. Removal. To remove the moldboard assembly
c. Position moldboard assembly in front of vehicle
(including tilt arm and push beams) from the vehicle,
as described in figure 3-40, view 2. Attach hoisting
proceed as follows:
device (see note, paragraph 3-96, step b) to lifting eyes
a. Place vehicle on level terrain and lock parking
located at top edge of moldboard.
brake.
d. Activate hoist and raise top edge of moldboard
b. Attach hoisting device to lifting eyes stop
and connect push beams to hull brackets as shown in
moldboard " shown in figure 3-38, view A.
figure 3-40, view 2.
c. Raise moldboard to stowed position and lock.
e. Activate hoist and raise top edge of moldboard
and connect push beams to hull brackets as shown in
Note. Raise moldboard with hydraulic system if
figure 3-40, view 3.
operative.
If system is not operative, attach
emergency lift cables and raise moldboard as
prescribed in paragraph 2-19.
Other alternate
methods may be a hoist or hydraulic jacks
positioned beneath push beams at ram arm pivots
3-53
