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Manitowoc National Crane 1400A User Manual

Manitowoc National Crane 1400A
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4-2 Published 12-21-2012 Control # 103-06
SET-UP 1400A OPERATOR’S MANUAL
4. Using the outriggers, level the crane as indicated on the
leveling device used in step 3.
5. Using the bubble level indicator mounting screws, adjust
the bubble level indicator to show level.
Site Selection
The outrigger floats must be on a firm solid surface that is
level. The surface must keep the crane stable and not allow
the stabilizer float to sink or slide. Avoid areas that are:
uneven
rocky
muddy
NOTE: Use the primary level indicator (Figure 3-1) to verify
the accuracy of the secondary level indicators
(Figure 3-1 and Figure 3-2).
To adjust the secondary level indicator:
Level the crane with the outriggers using the
primary level indicator.
Adjust the secondary level indicator with the
adjustment screws so that the bubble is in the
center (Figure 4-1).
Setting the Outriggers
The outrigger setup procedure is as follows:
1. Open the outrigger control box on the side of the truck
(Figure 3-1).
2. Select the desired outrigger beam with the selector
switch and press the extend/retract switch to extend the
outrigger beam.
3. Set all four outrigger beams to:
a. the fully retracted position. Does not require the
outrigger beams to be extended.
b. the midpoint position. Engage the manual midspan
over-center locks for the midpoint position.
c. the fully extended position.
4. Remove the outrigger floats from the carrying brackets
and place the floats under the stabilizer.
5. Select the desired stabilizer with the stabilizer selector
switch and press the extend/retract switch to extend the
stabilizer.
6. Secure the outrigger floats to the stabilizers with the pins
and clips.
7.
Extend the two front outrigger beams to either the mid span
or full span width and lower the stabilizer legs until the front
truck tires clear the ground.
8. Extend the two rear outrigger beams to the same
position as the front beams.
9. Using the level indicator, adjust the stabilizers until the
bubble is in the center of the bulls eye. Do not allow the
tires to touch the ground.If it is suspected that the bubble
level indicator is out of adjustment, verify and adjust the
bubble level using the procedures under Bubble Level
Adjustment, page 4-1.
10.
11. Lower the center front stabilizer only after all other
stabilizers are set. Press the front stabilizer switch to
activate and the extend/retract switch to extend. Hold
the extend/retract switch for two seconds after the
stabilizer contacts the ground. The front stabilizer is
automatically set at the correct ground pressure.
DANGER
All four outriggers must either be fully retracted, at the
midpoint, or fully extended, and the RCL set to the correct
position. Failure to do so creates a tipping hazard.
!
DANGER
After the center front stabilizer is set, it automatically
retracts if any other stabilizer is adjusted. Reset the center
front stabilizer if this has occurred.
WARNING
Tipping Hazard!
The mid-extend outrigger beam lock pin must be engaged
before operating on any beam from the mid-extend
position.
The proper load chart and RCL program must be selected
for the current outrigger configuration.
Not Level Level
FIGURE 4-1
!
Reference Only

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Manitowoc National Crane 1400A Specifications

General IconGeneral
BrandManitowoc
ModelNational Crane 1400A
CategoryConstruction Equipment
LanguageEnglish

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