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
retracted 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.
15. Start the engine.
16. Slowly extend boom cylinder (F) to align pin bores so
dust seals are not damaged as cylinder-to-boom pin
(E) is installed.
17. Install shims (D) to get minimum amount of clearance
between boom and cylinder rod end.
Install retainer (B), cap screw (A) and nuts (C).
Tighten nuts against each other, not the retainer. Cap
screw must be free to turn in hole.
Boom Cylinder-to-Boom Pin M20 Cap Screw Nut--Specification
Torque ....................................................... 540 N·m (400 lb-ft) tighten nut
against nut, not the retainer
18. Connect lubricant line.
A--M20 Cap Screw
C--M20 Nut (2 used)
19. Lubricate all pivot joints. (See Track Adjuster,
D--Shim (As Required)
Working Tool Pivot, Swing Bearing, and Swing
E--Boom Cylinder-to-Boom Pin
Bearing Gear Grease in Group 0004.)
20. Bleed air from cylinder. (See procedure in this group.)
21. Check oil level in hydraulic oil tank. Add oil as
necessary. (See Hydraulic Oil in Group 0004.)