Manitowoc Grove RT890E Product Manual page 20

ft ft luffing bi fold boom extension with inserts
Mode B intermediate offsettable angles
. ft . ft ft ft
ft LENGTH ft + INSERT
° °
OFFSET OFFSET
Feet
Min. boom
angle for
indicated
°
length no
load
Max. boom
length at °
. '
boom angle
no load
LMI operating code. Refer to LMI manual for operating instructions.
THIS CHART IS ONLY A GUIDE AND SHOULD NOT BE USED TO OPERATE THE CRANE.
The individual crane's load chart, operating instructions and other instructional plates must be read and understood prior to operating the crane.
or
, lb %
ft inserts
ft spread
Pounds
ft LENGTH ft + INSERTS
° ° ° ° ° °
OFFSET
° ° °
. '
A
˚
NOTES:
. All capacities above the bold line are
based on structural strength of boom
extension and do not exceed
tipping loads, in accordance with SAE
J
. The
extension may be used for single line
lifting service only
WARNING: Lifting with the
ft extension base, with the
extension fly either erected or folded
along side of extension base, or with
either one or two
installed, is strictly prohibited.
. WARNING: Operation of this
machine with heavier loads than the
capacities listed is strictly prohibited.
Machine tipping with boom
extension occurs rapidly and without
advance warning.
. The loads for luffing depend on the
angle of the main boom, angle of
the boom extension and dynamic
working pressure of the luffing
cylinder for the boom extension.
. When lifting over the main boom
nose with
inserts, the outriggers must be fully
extended and vertical jacks set only.
% of
.
ft luffing folding boom
ft
ft insert sections
ft extension erected and