Shaver HD-12-H, Operator'S Manual

Page: 40 / 56

Forward and Side Tilt Cylinder
Maintenance
Cylinder Disassembly
Removing tilt cylinder(s) from the
assembled Post Driver can cause
an unstable condition. To avoid
personal injury or death, make
sure the drive ram is fully supported by other
means before removing the tilt cylinders for
service.
1 . When removing the cylinder(s) from the
assembled Post Driver, make sure the drive
ram is fully supported by other means,
such as a suitable overhead lifting device.
2 . Clean the outside of tilt cylinders (F3, F4).
3 . Disconnect tilt cylinder hydraulic hoses
(H5) from the hydraulic control valve. Plug
the fittings to prevent dirt from entering the
hydraulic system.
NOTE : Be prepared to collect any hydraulic
fluid that drains from the cylinder and hoses,
into a suitable container.
4 . Remove tilt cylinders (F3, F4) from the base
plate by removing the mounting pins.
5 . Inspect the tilt cylinder mounting points.
Replace any worn or damaged
components.
(F3) Forward Tilt cylinder. (F4) Side Tilt Cylinder.
(H5) Tilt Cylinder Hydraulic Hose.
6 . Carefully clamp tilt cylinder (F3 or F4)
mounting tube in a vise. Completely
compress internal cylinder cap snap ring
(F14) and pull cylinder rod assembly
(F16 or F17) out of tilt cylinder tube
(F21 or F27).
(F3, F4) Cylinder Assembly (forward or side tilt)
.
(F14) Cylinder Cap Snap Ring. (F16, F17) Cylinder Rod
Assembly (forward or side tilt). (F21, F27) Cylinder Tube
7 . Disassemble cylinder rod (F16, F17) by
removing cylinder rod nut (F20), piston
(F19), piston to cylinder rod seal (F18), and
cylinder cap (F15) from the cylinder rod.
(F14) Snap Ring. (F15) Cylinder Cap. (F16 or F17)
Cylinder Rod. (F18) Cylinder Rod Seal. (F19) Piston.
(F20) Cylinder Rod Nut.
8 . Inspect the cylinder rod sealing surface for
any dents, bends, nicks, pitting, scratches,
scoring, or rust. Replace any worn or
damaged components.
WARNING
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