Manitowoc Published 08-12-19, Control # 224-13 3-63
MLC650 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
10. If the engine clutch is disengaged, decrease engine
speed to low idle and engage the clutch within 20
minutes after starting the engine.
11. After the engine is started, the Working Screen shown in
Figure 3-14
will appear in the Main Display.
See the Main Display Operation Manual for detailed
instructions on what is displayed in the Working Screen.
When the engine is started, it is normal for faults to
appear in the alerts bar of the Main Display Working
Screen. The faults should go away as soon as the
engine oil pressure and hydraulic oil temperature rise to
normal.
NOTE For fault identification, see the MLC650 Main Display
Operation Manual.
NOTE You will not be able to increase engine speed until
the hydraulic oil temperature is warmed to at least
17°C (63°F).
The hydraulic temperature fault will
remain on until the hydraulic oil
temperature is 17°C (63°F). There will
be no throttle response until this
fault is cleared.
12. Configure the crane and select the appropriate capacity
chart in the RCL/RCI Display. See the MLC650 RCL/
RCI Operation Manual.
NOTE The last capacity chart used will be the current
capacity chart.
13. Inspect the self-erect cylinder at the start of each shift to
make sure it is fully retracted. Retract it if necessary.
Figure 3-14. Working Screen
CAUTION
Machinery Damage
Do not operate the crane when faults exist. If the faults do
not go away soon after the engine is started, or if any
come on during operation, immediately proceed as
follows:
• Determine the fault in the Main Display Working
Screen.
• Land the loads, if possible, and park all functions.
• Move all the control handles to off.
• Stop the engine.
• Correct cause of the fault.
CAUTION
Unintended Cylinder Movement
The self-erect cylinder can creep due to thermal expan-
sion/contraction. Inspect the self-erect cylinder before any
operation when the live mast is pivoted forward past 90°
to verify that the cylinder is fully retracted and engaged
with the retention bracket.
If the self-erect cylinder comes free of the retention
bracket, it will swing freely, which could result in death or
serious injury.