Oscillation Lockout Cylinder
The oscillation lockout cylinders have 3.5 in. (8.9 cm)
The retracted length is 19.5 in. (49.5 cm) measured
diameter bores and are the double-acting-type. The
from the center of the rod bushing to the center of
cylinders are mounted to the frame and the axles.
the barrel bushing. The extended length from the
center of the rod bushing to the center of the cylinder
O-rings are used within the cylinders to prevent
bushing is 25.7 in. (65.4 cm).
internal and external leakage. A wiper ring is
mounted to the front of the cylinder barrels to wipe
Each cylinder weighs approximately 46 lbs (20.8 kg)
dirt from the rod as it is retracted.
dry and 47.5 lbs (21.5 kg) wet.
For Removal and Installation
CYLINDERS in Section 6.
cylinder barrel and cover the barrel to avoid
Any maintenance requiring disassembly
When removing seals and rings, avoid
scratching grooved and gland surfaces.
replacement of all cylinder seals and O-
Remove the setscrew securing the cylinder
Aligning discarded seals and rings in the
head retaining ring and using a spanner wrench,
order of disassembly will facilitate
unscrew the retaining ring from the barrel, refer to
installation of new items.
Remove the hydrolock piston seal to gain
access to the setscrew securing the piston to the
Do not use air pressure to remove the
cylinder rod assembly. Use only a
Remove the setscrew and unscrew the piston
source of controlled hydraulic oil
from the cylinder rod.
pressure, if the rod is hard to remove.
Remove the remaining hydrolock seal and
guide lock ring from the outside of the piston and the
O-ring and two backup rings from the inside of the
Exercise extreme care when handling or
setting down the cylinder rod. Do not
damage the chrome surface.
Remove the cylinder head from the rod
Remove the cylinder rod assembly from the
Remove the O-ring and backup ring from the
outside of the head and the wear ring, buffer seal,
deep Z rod seal, and wiper ring from the inside of the