Part No. 57.4400.9203 GTH-4016SR • GTH-4018SR
41
March 2010
REV A
Section 4 • Repair Procedures
1-3 How to Remove the Boom
WARNING
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.
NOTICE
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
paragraph “
Hydraulic Hose and
Fitting Torque Specifications”
into
Specification Section
1. Remove the lifting fork (see “
How to Remove
the Lifting Fork Frame” paragraph)
2. Tag and disconnect the cable reel plug placed
at the top of the boom and remove the plastic
clamps which secure the harness to the boom
iron hoses.
3. Lift the boom up to when the rod end pivot pin
is higher then the top of the cabin.
4. Place a support under the lifting cylinder.
5. Tag, disconnect and plug the two hydraulic
hoses from the main valve of the extension
cylinder.
6. Tag, disconnect and plug the four hydraulic
hoses from the main valve to the boom iron
hoses (two for tilting function and two for the
attachmenty lock/unlock cylinder, when fitted).
7. Attach four lifting straps to the dedicated lifting
points, from a total overhead 10 ton crane to
the boom.
BOOM COMPONENTS
8. Using a punch and a hammer, remove the rod
end pivot pin from the lifting cylinder. Keep
attention to choose a punch smaller than the
pivot pin!
9. Using a punch and a hammer, remove the rod
end pivot pin from the slave cylinder. Keep
attention to choose a punch smaller than the
pivot pin!
10. Using a punch and a hammer, remove the rod
end pivot pin from the bottom boom end. Keep
attention to choose a punch smaller than the
pivot pin!
11. Using the crane, raise the boom and lay it on a
dedicated place.
