TM 9-2590-209-14&P
(3) Position block to support, and secure
(1)
(7) Remove left and right outer tilt arm
with screw and washer. These parts are used on
retaining caps (view B).
vehicles with serial numbers 3340 and up only.
(8) Remove outer
tilt arm
from
hull
(4) Install support to fender, and secure
mounting bracket (view B).
with two bolts and washers.
(9) Insert crowbar and use as lever to
(5) Install support to mounting bracket,
support weight of inner tilt arm (left and right) (view C).
and secure with two bolts and washers.
(10) Remove cotter pins, nuts, and pin
(6) Install headlamp guard, and secure
securing inner tilt arms (left and right) to hull mounting
with two bolts, lockwashers, wingnuts, washers, and
brackets (view C).
cotter pins.
(11) Release leverage on crowbar, and
lower inner tilt arms to rest on rear of blade assembly
10-23. Maintenance of Blade Assembly.
(view C).
a. Description. The front mounting brackets
(12) Raise bottom edge of blade assembly
and blade assembly consist of heavy-duty moldboard
with rams or jacks, while maintaining slack in hoist
and cutting edge supported by a linkage attached to
chains and tilt blade assembly face toward ground.
mounting brackets located on the front lower slope of the
When maximum tilt is obtained, lower rams until bottom
vehicle hull. The linkage is composed of two push
edge of blade assembly rests on ground. Remove slack
beams (left and right) and four tilt arms (left and right
in hoist chain.
outboard and left and right inboard). Up-and-down
motion of the blade assembly is accomplished by two
(13) Remove screws and lockwashers
hydraulically operated double-acting cylinder and ram
securing ram arm pin locks (left and right) (view D).
assemblies. The ram ends are connected by pivot pins
to the pushbeams.
(14) Remove ram arm pivot pins (left and
right) (view D).
b.
Removal (Fig 10-10).
NOTE
(1) Place vehicle on level terrain and lock
parking brake.
Lift with hoist as necessary to allow
removal of pins. Raise ram arms to
(2) Attach hoisting device to lifting eyes on
clear pushbeam wells and tie arms in
top of blade assembly (view A).
raised position.
(3) Hoist
blade
assembly
to
stowed
(15) Remove cotter pins, nuts, and pins
position and lock.
securing left and right pushbeams to mounting brackets
(view E).
(4) Remove lower two screws and
lockwashers securing left and right outer tilt arm retaining
(16) Lift with hoist until pushbeams
caps to mounting brackets (view B).
connecting ends are clear of mounting brackets (view E).
(5) Lower blade assembly to float position.
(17) Back
vehicle
away
from
blade
assembly.
(6) Remove the upper two screws and
lockwashers securing left and right outer tilt arm retaining
(18) Lower hoist until blade assembly is
caps to mounting brackets (view B).
resting on ground.
10-17
