Grove Published 7-23-2020, Control # 668-02 4-137
GRT9165 OPERATOR MANUAL OPERATING PROCEDURES
extend slightly (moving the right joystick to the right, if using
the dual axis controller arrangement). If S2116N is ON in this
near connection condition, then the cylinder needs to retract
slightly (moving the previously mentioned joystick to the left).
These motions are logical with respect to what is shown on
the screen.
Proximity switch S2114N is for the left cylinder pin being
extended and proximity switch S2115N is for the right
cylinder pin being extended. Proximity switch S2120N is a
redundant switch for the left cylinder pin being extended.
Proximity switch S2112N is for the left cylinder pin being
retracted and proximity switch S2113N is for the right
cylinder pin being retracted.
Figure 4-136 has further explanation for the telescoping
emergency program screen. Item 1 is the graphical
representation of the tele cylinder pins that connect to a
telescoping boom section. When these cylinder pins are
considered retracted, an unlock symbol will appear in this
location.
Item 2 is the graphical representation of the boom section
and its pins that connect to the next telescoping boom
section. Note that in the telescoping emergency program,
the actual boom section that the cylinder is no longer able to
be determined; the crane operator must determine this.
When these section pins are considered retracted (at least
the actuator has moved to attempt this), an unlock symbol
will appear in this location.
Item 3 is the indicator for a command to attempt to retract the
cylinder pins. The arrow buttons on the display or the jog dial
can be used to highlight this, and hitting the OK/Enter button
will then attempt to execute the command. The lock/unlock
symbol on the button does not change based on the cylinder
operations (refer to Items 1 and 2).
Item 4 is the indicator for a command to release or re-extend
pins. This command works for both the cylinder pin retracting
and the section pin retracting. There is a mechanical
interlock device internal to the pinning head/cylinder that
only allows for either the cylinder pins or the section pins to
be retracted but not both at the same time. The arrow
buttons on the display or the jog dial can be used to highlight
this, and hitting the OK/Enter button will then attempt to
execute the command. The lock/unlock symbol on the button
does not change based on the cylinder operations (refer to
Items 1 and 2).
Item 5 is the indicator for a command to attempt to retract the
section pins. The arrow buttons on the display or the jog dial
can be used to highlight this, and hitting the OK/Enter button
will then attempt to execute the command. The lock/unlock
symbol on the button does not change based on the cylinder
operations (refer to Items 1 and 2).
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