Grove Published 3-23-2020, Control # 654-04 4-73
GRT655/655L OPERATOR MANUAL OPERATING PROCEDURES
Boom Up Limitation Procedure by Crane Position
To define and enable the Boom Up Limitation using the crane
current boom angle as the limitation, the following steps can
be used:
1. Position the crane to have the desired position.
2. The Boom Angle Limitation Screen (Figure 4-44) is to be
shown on the display.
3. For cranes configured with both the Alarm/Warning
Function and the Lock Out Function, choose the desired
function by doing the following:
a. By default, the Lock Out Function is selected. If this
is the desired function, skip to Step 4. If not, use the
Left Arrow or Right Arrow function to highlight the
Lock Out Function symbol.
b. Use the OK button (item 2, Figure 4-40) to change
the Lock Out Function option to the Alarm/Warning
Function option.
4. Use the Right Arrow function to highlight the Enable
symbol (refer to Table 4-7).
5. Use an OK button to set the symbol to the limitation
being enabled—it will have the green color when
enabled (note that based on past limitation settings,
alarms may begin at this point).
6. Use the Right Arrow function once to highlight the upper
boom angle Accept Crane Position symbol (refer to
Table 4-7). Use an OK button (item 2, Figure 4-40) to
accept the current crane position (such as the 39.9 deg
value shown in Figure 4-44) to be the Limitation Value.
The Limitation Value should now be updated on the
screen. Note that the boom is now at the limitation, so
alarms are most likely sounding. The boom can now be
moved away from the current boom angle to stop the
alarm. Refer to Table 4-4 for how the alarm performs.
Refer to Figure 4-40 for the button to cancel an audible
alarm (once boom motion has stopped).
7. The Boom Up Limitation is now defined and enabled.
Crane operations can be resumed with the WRL working
with this specified limitation.
Boom Down Limitation Procedure by Crane Position
To define and enable the Boom Down Limitation using the
crane current boom angle as the limitation, the following
steps can be used:
1. Position the crane to have the desired position.
2. The Boom Angle Limitation Screen (Figure 4-44) is to be
shown on the display.
3. For cranes configured with both the Alarm/Warning
Function and the Lock Out Function, choose the desired
function by doing the following:
a. By default, the Lock Out Function is selected. If this
is the desired function, skip to Step 4. If not, use the
Left Arrow or Right Arrow function to highlight the
Lock Out Function symbol.
b. Use the OK button (item 2, Figure 4-40) to change
the Lock Out Function option to the Alarm/Warning
Function option.
4. Use the Right Arrow function to skip the Boom Up
Limitation symbols and then highlight the Boom Down
Enable symbol (refer to Table 4-7).
5. Use an OK button (item 2, Figure 4-40) to set the symbol
to the limitation being enabled—it will have the green
color when enabled (note that based on past limitation
settings, alarms may begin at this point).
6. Use the Right Arrow function once to highlight the lower
boom angle Accept Crane Position symbol (refer to
Table 4-7). Use an OK button to accept the current crane
position (such as the 6.9 degree value shown in
Figure 4-44) to be the Limitation Value. The Limitation
Value should now be updated on the screen. Note that
the boom is now at the limitation, so alarms are most
likely sounding. The boom can now be moved away
from the current boom angle to stop the alarm. Refer to
Table 4-4 for how the alarm performs. Refer to
Figure 4-40 for the button to cancel an audible alarm
(once boom motion has stopped).
7. The Boom Down Limitation is now defined and enabled.
Crane operations can be resumed with the WRL working
with this specified limitation.
Boom Up/Down Limitation Disable Procedure
To disable an active Boom Up or Boom Down Limitation, the
following steps are to be used (note that turning off the power
to the control system also disables the WRL limitations):
1. The Boom Up/Down Limitation Screen (Figure 4-44) is
to be shown on the display.
2. Use the Left Arrow and/or Right Arrow function to
highlight the desired Enable symbol (refer to Table 4-7).
3. Use an OK button to set the symbol to the limitation
being disabled - it will not have the green color when it is
disabled.