OPERATING PROCEDURES TMS9000-2 OPERATOR MANUAL
4-74
Published 02-21-2019, Control # 611-05
The following steps would be expected for fully retracting the
boom in Semi-auto Mode:
• DO NOT ENTER a new boom configuration or “target
tele picture” (such as 0-0-0-0-0) just to be able to fully
retract the boom.
• At any point in the boom extending procedure
(described above), when the left arrow is shown, the
joystick (or other control device) can be used in the
retract direction to retract the boom (partially or fully).
• Using the previous example for extending the boom, the
boom motion would end at the boom configuration of
100-100-0-0-0. And, the left arrow would be blinking.
• The operator can use the joystick in the retract direction
for at least 1 second, and then the automated motion to
unlock the boom section (T1 in the example) will start. It
is important to know that there are two phases for
unlocking a boom section. As mentioned previously, and
shown in Figure 4-143, there is a lip on the boom section
pins. Therefore, the first phase of the automated motion
is to lift up the boom section to have clearance from this
lip. After the lift up is completed, then the pins are
retracted. The boom section is now able to be retracted.
• The operator can retract the first boom section to move
(T1). But note that the retract and extend arrows are
again shown. It is possible for the operator to change
direction once again and return to extending the boom, if
desired.
• Assuming the boom is to be fully retracted, the operator
would retract the first section. The boom section will
slow down near the 0% pinning location. If the operator
continues to retract the boom section to the 0% pinning
location, the boom motion stops. The left arrow is shown
blinking.
• The operator can command the retract direction for at
least 1 second, and then the boom section will lock at
0%.
• The left and right arrows would be shown blinking.
• The operator can continue to command the retract
direction for at least 1 second, and then the telescoping
cylinder will automatically unlock from the boom section,
extend to the next boom section to be retracted, and lock
to that boom section. Then the automated motion to
unlock the boom section will be used (now for boom
section T2 in this example). When unlocked, the left and
right arrows will appear again.
• The operator can continue to command the retract
direction and the second boom section to move will be
retracted. And, as before, it can be locked at its 0%
pinning location.
• Note that when the boom is fully retracted, the
telescoping cylinder does not automatically move to
another boom section (such as automatically moving to
the T1 boom section). The telescoping cylinder will
remain at the boom section that was the last to be
retracted. However, this cylinder can be moved to
another boom section with the Semi-auto Mode. Refer to
the section in this document 'Semi-auto Mode for shifting
cylinder within fully retracted boom'.
Semi-auto Mode for shifting cylinder within fully
retracted boom
It may be desirable to have the telescoping cylinder locked to
a particular boom section while the boom is fully retracted.
This might be particularly useful for weight distribution
changes for roading the crane.
The following procedure can be used:
• Enter the Semi-auto screen of the operating display.
• Verify that the telescoping function is enabled.
• Enter a requested final boom configuration with 0% for
each of the boom sections, EXCEPT for the boom
section where the tele cylinder is desired to be locked to.
For this one boom section, enter 50% (any non-0 value
will actually work, though). For example, if the
telescoping cylinder is desired to be locked to the T1
boom section (and it is not located there currently), then
50-0-0-0-0 would be entered.
• If the telescoping cylinder is not at the boom section
desired, it will shift to that boom section.
• When the telescoping cylinder is locked to the desired
boom section, that boom section will be automatically
unlocked (as if it is to be operated).
• Use the joystick (or other control device) to retract for at
least 1 second. The boom section will re-lock, and the
boom should still be fully retracted and locked, and the
telescoping cylinder will be in the position desired (such
as locked to T1 boom section).
Semi-auto Mode requiring boom to be retracted
It is important to understand that a new requested final boom
configuration (“target tele picture”) may require the boom to
be retracted first. For example, if the requested final boom
configuration is currently 100-100-0-0-0, and the boom is
extended to this configuration, and then a new requested
final boom configuration (such as 0-0-0-100-100) is entered,
it is impossible to use the new configuration unless the
existing boom sections are retracted first. When this
condition arises, only the left telescoping direction arrow will
be shown on the display (as seen in Figure 4-144). When the
boom is fully retracted, then the automated motions should
proceed to the new configuration. That is, for the example,
when T2 is locked at 0% (after using the joystick to retract
everything), then telescoping cylinder can move to the T5
boom section to be unlocked (since it is the first boom
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