Outrigger Stabilizer Cylinder
The stabilizer cylinders have a 3.5 in. (8.9 cm)
mounted on the front of the stabilizer cylinder barrel
diameter cylinder bore and are the double-acting-
to wipe the rod as it is retracted into the barrel. The
type. The cylinders are pinned into tubes welded
cylinder is approximately 42.5 in. (107.9 cm) long
onto the end of the outrigger beams. A port block is
retracted and 63 in. (160 cm) long fully extended.
welded to the end of the cylinder rod and a pilot-
operated check valve is threaded into the port block.
The cylinder weighs approximately 109 lbs (49.4 kg)
O-rings are used within the cylinder to prevent
dry and 114 lbs (51.7 kg) wet.
internal and external leakage. A wiper ring is
For Removal and Installation procedures, refer to STABILIZER
CYLINDER in Section 12.
When removing seals and rings, avoid
scratching grooved and gland surfaces.
Any maintenance requiring disassembly
replacement of all cylinder seals and O-
Aligning discarded seals and rings in the
order of disassembly will facilitate
Remove the setscrew securing the cylinder
installation of new items.
head and using a spanner wrench, unscrew the
Remove the hydrolock piston seal to gain
access to the setscrew securing the piston tot he
Do not use air pressure to cycle or
Remove the setscrew and unscrew the piston
pressurize the cylinder. Use only a
from the cylinder rod.
source of controlled hydraulic oil
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
Remove the spacer from the rod.
damage the chrome surface.
Remove the cylinder head from the rod.
Remove the cylinder rod assembly from the
cylinder barrel and cover the barrel to avoid