Terex Genie SX-150, Service And Repair Manual

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Service and Repair Manual December 2019
Boom Components
50 SX ™ -150 Part No. 1300669GT
4 Remove the pin retaining fastener from the
boom lift cylinder rod-end pivot pin. Use a soft
metal drift to remove the pin. Protect the
cylinder rod from damage.
Crushing hazard. The boom lift
cylinder may fall when the
rod-end pivot pin is removed if
the boom lift cylinder is not
properly supported by the
overhead crane.
Crushing hazard. The boom
may fall when the rod-end pivot
pin is removed if the boom is
not properly supported by the
overhead crane.
5 Place support blocks under the boom lift
cylinder.
6 Remove the pin retaining fastener from the
boom lift cylinder rod-end pivot pin. Use a soft
metal drift to remove the pin. Protect the
cylinder rod from damage.
7 Using the Auxiliary Power Unit, retract the
boom lift cylinder until the rod end will clear the
boom weldment.
8 Carefully lower the rod end of the boom lift
cylinder down onto the support blocks.
9 Tag, disconnect and plug the boom lift cylinder
hydraulic hoses.
10 Remove the platform. Refer to Repair
Procedure, How to Remove the Platform.
11 Remove the platform mounting weldment and
the platform rotator. Refer to Repair
Procedure, How to Remove the Platform
Rotator .
12 Remove the jib boom. Refer to Repair
Procedure, How to Remove the Jib Boom.
Note: When the jib boom is installed, the jib boom
angle sensor will need to be calibrated. Refer to
Repair Procedure, How to Calibrate the Jib Boom
Bellcrank Angle Sensor .
13 Remove the primary boom cable track. Refer
to Repair Procedure, How to Remove the
Cable Track .
14 Remove the end cover from the pivot end of
the primary boom.
15 Remove the limit switch mounting fasteners
from the limit switch on the ground controls
side of the primary boom. Do not disconnect
the wiring. Remove the limit switch.
16 Disconnect the electrical connector from the
primary boom angle sensor.
Note: The primary boom angle sensor is located on
the pivot pin on the tank side of the boom.
17 Remove the primary boom angle sensor
bracket mounting fasteners and remove the
primary boom angle sensor from the primary
boom. Do not remove the angle sensor from
the bracket.
Note: When the primary boom is installed, the
primary boom angle sensor will need to be
calibrated. Refer to Repair Procedure, How to
Calibrate the Primary Boom Angle Sensor .
18 Attach a 10 ton / 9071 kg overhead crane to
the pivot end of the primary boom. Do not
apply any lifting pressure.
19 Remove the pin retaining fasteners from the
primary boom pivot pins.
20 Use a soft metal drift to remove the primary
boom pivot pins.
21 Carefully remove the primary boom from the
machine and place it on a structure capable of
supporting it.
Crushing hazard. The primary
boom could become unbalanced
and fall when removed from the
machine if not properly attached
to the overhead crane.