SECTION 5. HYDRAULIC SYSTEM
1.HYDRAULIC CYLINDER
1)Hydraulic system must be washed clean, and care must be taken not to let any foreign substances.
2)The O-ring and back-up ring should be coated with grease ahead of time. Install with care so as not
to damage them.
3)Install the Piston from the cylinder head side.
4)The lift arms should be assembled mutually by reference to their matching marks.
5)When installing the control valve, apply grease to the O-rings and avoid their dislocation or binding
during tightening the valve to the specified torque 250 ∼350㎏f-㎝
6)The spool should move smoothly after assemble the control valve.
7)The lift crank should be installed levelly, and Install with care so as not to damage the Bush.
O-ring
Apply grease
Back up ring
9-19
Fig.9-34. Hydraulic cylinder.
Lift crank
Apply adhesive (1901)
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