Manitowoc Published 11-20-19, Control # 234-19 4-15
MLC300 OPERATOR MANUAL SETUP AND INSTALLATION
CRANE ASSEMBLY
Start Engine
1. Perform the pre-start checks given on page 4-11.
2. Remove the remote control from the storage
compartment on the left side of the operator cab (see
Figure 4-7 on page 4-8
.
3. Activate the remote control. See Activating Remote
Control on page 4-9.
4. Start the crane engine with the start switch on the
remote control. See Starting Engine with Remote
Control on page 4-9.
Raise Operator Cab
1. Remove the tie-downs and blocking securing the cab (4,
View A) to the trailer.
2. Tilt the cab up to the level position with the cab tilt switch
on the remote control.
Remove Carbody-Rotating Bed Module from
Trailer
See Figure 4-12 for the following procedure.
1. Position the trailer (1, View A) carrying the carbody-
rotating bed module at the desired location in the
assembly site.
2. Perform the pre-start checks.
3. Using the remote control, start the engine.
NOTE It is normal for the system fault alert for low engine oil
pressure to come on at startup. The alert should go
off as engine oil pressure rises to normal. If the alert
does not clear soon after start-up, stop the engine
and correct the cause of the fault.
4. Remove the connecting pin (5, View D) from the storage
hole (A).
5. Rotate the carbody jack (6, View D) out from the storage
position to the working position.
6. Install the pin (5) in the working hole (B).
7. Remove the jack pad (7, View B) from storage and place
it on the ground below the jack rod (View D). Each jack
pad weighs 45 kg (99 lb).
8. Reinstall the storage pin (8) in the lug on the carbody.
9. Using the remote control, extend the carbody jack (6,
View E) until the jack rod engages the jack pad.
10. Repeat steps 4 - 9 for each jack.
11. Remove the tie-downs and blocking securing the
carbody (2, View A) to the trailer.
NOTE A level is provided on the front of the carbody. See
Section 3 of the Crane Operator Manual.
12. Using the remote control, fully extend the carbody jacks
(6, View E) to raise the carbody-rotating bed module off
the trailer.
13. Remove the trailer. Take extreme care not to hit jacks
with trailer. Provide a signal person to give
instructions to truck driver.
14. Retract the carbody jacks (6, View F) — keep the crane
level — until the carbody is approximately 26 in (660
mm) above the ground and the small diameter jack rod
is fully retracted.
WARNING
Tipping Hazard!
Small diameter of jacking cylinders must be fully retracted
before handling the first crawler, otherwise cylinders will
be overloaded.
CAUTION
Avoid Structural Damage
Do not extend the carbody jacks when they are stored.
Serious structural damage will occur to the carbody and
jacks.
WARNING
Moving Part Hazard!
To avoid serious crushing injury — warn all personnel to
stand clear of the jacks.
WARNING
Tipping Hazard!
Avoid tipping the crane over — keep the crane level while
jacking.
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