TM 5-3805-280-24-2
Hydraulic System
IMPORTANT: Trapped air suddenly compressed in a
cylinder is heated and ignites the oil
used for assembly causing cap seal and
ring damage. Start with cylinder rod
retraced and the rod end filled with
clean oil. Connect the cylinder head end
and lines. Operate function to slowly
extend rod. Procedure will eliminate
most of the air and reduce the
possibility of damage.
17. Start the engine.
Slowly extend bucket cylinder (B) to align pin bores
so dust seals are not damaged as bucket
cylinder-to-side and center links pin (I) is installed.
18. Install washers (G) equally on each side of cylinder
rod end and side links to get the minimum amount of
clearance in joint.
Install pin (F) and retainer ring (E).
19. Lubricate all pivot joints. (See Track Adjuster,
Working Tool Pivot, Swing Bearing, and Swing
Bearing Gear Grease in Group 0004.)
B--Bucket Cylinder
E--Retainer Ring
20. Bleed air from cylinder. (See procedure in this group.)
F--Pin
G--Washer (As Required)
21. Check oil level in hydraulic oil tank. Add oil as
H--Bucket Cylinder Rod End-to-Bucket Section
necessary. (See Hydraulic Oil in Group 0004.)
Top Port Line
--Bucket Cylinder Head End-to-Bucket Section
Bottom Port Line
I--Side and Center Links-to-Bucket Cylinder Pin
J--Side Link
TX,33,UU3812
1922SEP985/5
33
3360
154
21-186