TM 9-2590-209-14&P
with pin. Position lock on pin, and secure with screw and
4-27. Installation (Fig 4-8).
lockwasher(view C).
NOTE
d. Install outer tilt arm to blade assembly and secure
with pin. Position lock on pin, and secure with screw and
Procedures for both left and right sides are the same.
lockwasher (view B).
a. Attach lifting device to outer tilt arm.
e. Attach lifting device to inner tilt arm.
b. Install outer tilt arm to mounting bracket. Position
f. Install inner tilt arm to mounting bracket, and
cap, and secure with two screws and lockwashers (view
secure with pin. Position lock on pin, and secure with
D).
screw and lockwasher (view A).
c. Install inner tilt arm to blade assembly and secure
Section VIII. MAINTENANCE OF HYDRAULIC HOSES, TUBES, LINES, AND FITTNGS
(5) Disconnect two seals and tubes connected to
4-28. Description. The hydraulic hoses, tubes, lines,
elbows (view B).
and fittings connect the hydraulic pump at the rear of the
transmission to the hydraulic cylinders connected at the
(6) Remove three screws, lockwashers, and nuts
bulldozer blade assembly. The movement of hydraulic
securing lower guard to left rear fender (view C).
fluids provides the modes of operation for the bulldozer.
Remove lower guard.
CAUTION
CAUTION
Do not remove drain plugs or disconnect lines while
Tape ends of tubes and lines to prevent entry of foreign
engine is running to prevent damage to hydraulic pump.
matter.
4-29. Removal (Fig 4-9).
(7) Remove two hose assemblies from reservoir
assembly (view D).
a. Reservoir Hoses, Tubes, and Elbow.
(8) Remove two elbows from hose assemblies
(1) Stop vehicle engine, apply brakes, and drain
(view D).
hydraulic system (fig 4-1).
(9) Remove two nuts, lockwashers,
and
(2) Remove two screws and lockwashers securing
washers from U-bolt. Remove U-bolt (view E).
support to upper guard (view A, fig 4-9).
(10) Remove two screws, lockwashers, and nuts
(3) Remove five screws and lockwashers securing
securing plate to underside of left rear fender (view E).
upper guard to lower guard (view A). Remove upper
guard.
(11) Remove screw, lockwasher, and nut
securing bracket to tube (view E).
(4) Remove two bolts, lockwashers, washers, and
nuts securing guard to left rear fender (view A). Remove
(12) Remove six screws and lockwashers
guard.
securing tube, two flanges, and packing, to elbow on
access clamp plate (view F). Remove tube.
4-17
