REV B
Section 4 • Repair Procedures
June 2005
Part No. 52075
TMZ-34/19
4 - 15
BOOM COMPONENTS
25 Using a soft metal drift, remove the primary
boom lift cylinder rod-end pivot pin.
Crushing hazard. The primary
boom lift cylinder could fall if not
properly supported when the pivot
pin is removed.
26 Lower the cylinder onto the secondary boom.
27 Attach a lifting strap from an overhead crane to
the primary boom.
28 Disconnect the primary boom hold-down latch.
29 Remove the pin retaining fasteners from the
primary boom pivot pin at the boom pivot.
30 Using a soft metal drift, remove the primary
boom pivot pin at the boom pivot.
Crushing hazard. The primary
boom could become unbalanced
and fall if not properly supported
when the pivot pin is removed.
31 Remove the primary boom from the machine.
Crushing hazard. The primary
boom could become unbalanced
and fall if not properly supported
when removed from the machine.
32 Attach a lifting strap from an overhead crane to
the lug on the rod end of the primary boom lift
cylinder. Raise the cylinder to a vertical
position.
33 Remove the pin retaining fasteners from the
primary boom lift cylinder barrel-end pivot pin.
34 Using a soft metal drift, remove the primary
boom lift cylinder barrel-end pivot pin.
Crushing hazard. The primary
boom lift cylinder could fall if not
properly supported when the pivot
pin is removed.
35 Remove the primary boom lift cylinder from the
machine.
Crushing hazard. The lift cylinder
could become unbalanced and fall
if not properly supported when
removed from the machine.
Component damage hazard. The
solenoid valve can be damaged.
Use caution when removing the
cylinder from the machine.
36 Tag and disconnect the limit switch wiring
harness connector at the boom pivot.
37 Working at the male half of the connector,
remove the cover from the end that inserts into
the female half of the connector.
38 Carefully depress the pin locks and remove the
wires from the connector.
Note the location of each wire
before removing from the harness
connector.
39 Remove the hose/cable retaining clamps from
the inside of the boom pivot.
40 Remove the front cable guard from the
secondary boom.
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