Terex S-60 J, Руководство по обслуживанию и ремонту

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Service and Repair Manual December 2019
Boom Components
40 S ® -60 J Part No. 1285305GT
4-2
Primary Boom
How to Remove the Primary
Boom
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Note: Perform this procedure on a firm, level
surface with the machine in the stowed position
unless otherwise instructed.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1 Remove the jib boom. Refer to Repair
Procedure,
How to Remove the Jib Boom.
2 Raise the boom approximately 6 inches /
15 cm.
3 Place a block of wood 4x4x18 inches /
10x10x45 cm across the boom rest and lower
the boom onto the block of wood.
4 Remove the covers from the pivot end of the
boom assembly and the mid-pivot.
5 Working at the pivot end of the boom, remove
the boom retract limit switch.
6 Tag, disconnect and plug the hydraulic hoses
from the boom extend cylinder. Cap the
fittings.Remove the cable tracks from both
sides of the boom. Set them onto the machine
side covers.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
7 Using an overhead crane with a strap of
adequate capacity, support the platform end of
the boom. Do not apply any lifting pressure.
8 Using an overhead crane with a strap of
adequate capacity, support the barrel end of
the primary boom lift cylinder.
9 Using a soft metal drift, remove the pivot pin
securing the barrel end of the cylinder. Lower
the cylinder onto the boom structure.
Crushing hazard. The cylinder
could fall if not properly
supported.
10 Using an overhead crane with a strap of
adequate capacity, support the pivot end of
the boom. Do not apply any lifting pressure.
11 Tag, disconnect and plug the hydraulic hoses
from the platform level master cylinder at the
pivot end of the boom. Cap the fittings.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
12 Using a soft metal drift, remove the pivot pin
securing the barrel end of the cylinder.
Note: Use the access hole on the right side of the
mid-pivot to remove the pivot pin.