Manitowoc Grove TMS800E13, Руководство оператора

Страница: 94 / 168

OPERATING CONTROLS AND PROCEDURES TMS800E13 OPERATOR MANUAL
3-46
Published 02-06-2014, Control # 495-00
NOTE: The information in the following paragraph is an
example of how to compute a lift. The numbers
used in the example may not coincide with the
Load Chart in the crane cab.
Problem: A concrete beam weighing 2268 kg (5000 lbs)
needs to be lifted to a height of 9.1 m (30 ft) at a radius of
15.2 m (50 ft) (maximum). The range diagram indicates the
boom must be extended to 18.9 m (62 ft) in order to reach a
height of 9.1 m (30 ft) at a radius of 15.2 m (50 ft).
First we need to check the crane for load handling devices.
In our example, the crane is equipped with an auxiliary boom
nose (rooster sheave) and a five ton overhaul ball. The
rooster sheave is 50 kg (110 lb), and the overhaul ball is 78
kg (172 lb) for a total of 128 kg (282 lb). The lift requires
slings and spreader bars weighing 159 kg (350 lb) which
makes the total weight for the load handling devices 286 kg
(632 lb).
A check of the Load Chart for a 15.2 m (50 ft) radius and
19.5 m (64 ft) of boom length shows a capacity of 3601 kg
(7940 lb) on outriggers over-front and 2254 kg (4970 lb) on
outriggers 360 degrees. We subtract the load handling
weight of 632 lbs from the load capacity of 3601 kg (7940 lb)
and 2254 kg (4970 lb). The result is a weight capacity of
3315 kg (7308 lb) over-the-front and 1968 kg (4338 lb) for
360 degrees. We are constricted in making the lift over-front
only and the boom angle will be about 29 degrees.
Crane Functions
Setting the Outriggers
NOTE: The park brake must be set before the outriggers
will operate.
FIGURE 3-19
OPERATING RADIUS
HORIZONTAL
BOOM ANGLE
MAIN
BO
OM
LEN
GTH
AXIS OF ROTATION
4605
TERMS TO KNOW
DANGER
Death or serious injury could result from improper crane
setup on outriggers.
WARNING
The outriggers and the center front stabilizer must be
properly extended and set and the crane level before any
other operation of the crane on outriggers is attempted.
The center front stabilizer will retract automatically when
the extend/retract switch is activated in the retract position
for any stabilizer; therefore the center front stabilizer
MUST be reset if any craning functions are to be
continued.
Reference Only