Mec 65-J Diesel, Руководство по обслуживанию и запасным частям

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Page 74 65-J Desel - Servce & Parts Manual
February 2021 Secton 18 - Mechancal Components
Wrap a sling around the cylinder base, then pull
the end of the cylinder approximately 5 feet (1.5
m) out of the boom. Be careful as the end of the
cylinder comes out through the access hole. 9.
ART_4931
Attach a sling to the cylinder barrel and apply slight
lifting pressure with a forklift or overhead crane.
Use this sling to continue pulling the cylinder out of
the boom. 10.
ART_4932
Pull the cylinder out approximately 14.5 feet
(4.5 m). Attach a second sling close to where
the cylinder exits the machine. At this point, it is
necessary to lift the rod end of the cylinder so
that the cylinder foot and slide pad will clear the
wearpad bolts inside the boom. Prior to this point,
the weight at the front of the cylinder had been
supported by this foot.
Carefully extract the cylinder completely from the
boom. 11.
12.
ART_4933
Cylinder
Foot
IMPORTANT! Measure and record the length of the slightly-extended cylinder for easier reassembly.
Assembly
Assembly is reverse of disassembly.
Examine all pins for signs of wear, surface imperfections, cracks or gray dust in the pivot area.
Replace as necessary.
Extend the cylinder to the length recorded previously to ease reassembly. Ensure that the pin holes at
the rod end are in line with the pin hole at the barrel end.
If necessary, re-connect the hydraulic lines to the Boom Extend Cylinder after the cylinder is secured
at the rear of the boom. Use the Boom Extend/Retract function to extend or retract the cylinder to
proper length for assembly.
Install the pin at the barrel end of the cylinder. Use a pin alignment tool to position one rod end pin
hole, then install the pin in the other hole. Install the second pin at the rod end.
Refer to Section 4 - Torque Specifications for torque specifications of fasteners.