Manitowoc MLC300 Manual

Liftcrane Luffing Jib Capacities
Luffing Jib No. LJ10:501 on
Boom No. B60:500
with Mast No. M10:503 or Mast No. M11:503
175 100 kg VPC (Variable Position Counterweight)
360 Degree Rating
LIFTING CAPACITIES: Lifting capacities for
various boom lengths, boom angles, luffing jib
lengths, and luffing jib operating radii are for freely
suspended loads and may be based on percent of static
tipping or strength of structural components. Capacities must
be reduced by applicable deducts.
When Drum 2 or Drum 3 is used, capacity with single part
whip line is 16 600 kg, or 33 300 kg with two part whip line.
In all cases, upper luffing jib point capacities cannot exceed
those listed for main luffing jib capacity.
Weight of all load blocks, hooks, weight ball, slings, hoist
lines, etc., beneath boom, luffing jib, and upper luffing jib
point sheaves is considered part of luffing jib load. Boom and
luffing jib are not to be lowered beyond radii where combined
weights are greater than rated capacity. Where no capacity
is shown, operation is not intended or approved.
LUFFING JIB BACKWARD
indicated by (b) requires 2 270 kg minimum weight
suspended beneath luffing jib point, (c) requires 4 540 kg
minimum weight, and (d) requires 9 080 kg minimum weight.
Caution: Do not luff into areas indicated by (b), (c), or (d)
without required minimum weight. Luffing jib may not luff
down and luffing hoist wire rope may go slack. Luffing hoist
wire rope may overhaul luffing jib and cause wire rope
damage or failure.
OPERATING CONDITIONS: Machine to operate on a firm,
level, and uniformly supporting surface. Supporting surface
and bearing turntable are to be level within a tolerance of
13 mm in 3 m. During operation, boom must be maintained
at one of the selected angles shown in chart. Refer to Luffing
Jib Rigging No. 81023384, Mast Rigging No. 81025690 or
No. 84045340, Wire Rope Specification chart No. 9503-A,
Counterweight Arrangement chart No. 9345-A, Luffing Jib
Raising Procedure chart No. 9502-AM, and Wind Conditions
chart No. 9501-A. Crane operator judgment must be used to
allow for dynamic load effects of swinging, hoisting or
lowering, travel, wind conditions, as well as adverse
operating conditions and physical machine depreciation.
Refer to the Operator Manual for operating guidelines.
Manitowoc Cranes
Manitowoc, Wisconsin 54220 U.S.A.
ASME B30.5
STABILITY: Capacities
MACHINE TRAVEL: Machine to travel on a firm, level, and
uniformly supporting surface. Boom and luffing jib must be
within angle range shown in capacity chart. Refer to
Maximum Allowable Travel Specification chart No. 9500-A.
OPERATING RADIUS: Operating
horizontal distance from axis of rotation to center of
vertical hoist line or load block.
BOOM ANGLE: Boom angle in degrees (°) is
angle between horizontal and centerline of boom
butt and inserts.
LUFFING JIB ANGLE: Luffing jib angle in
degrees (°) is angle between horizontal and
centerline of luffing jib butt and inserts, and is an
indication of operating radius. In all cases, operating
radius shall govern capacity.
LUFFING JIB POINT ELEVATION: Luffing jib
point elevation is vertical distance from ground level
to centerline of luffing jib point shaft.
MACHINE EQUIPMENT: Machine equipped with VPC-MAX,
9 700 mm crawlers, 1 219 mm
9 144 mm live mast, 30,0 m mast, 10 part boom hoist
reeving, boom support straps, 14 part luffing jib hoist reeving,
luffing jib and backstay support straps, and 175 100 kg VPC.
Select counterweight position from Luffing Jib Raising
Procedure chart No. 9502-AM that will allow raising and
lowering of boom and luffing jib length. Counterweight
position selection may be changed with luffing jib on ground
or while luffing jib is within operating range of capacity chart.
MLC300
VPC-MAX
SERIES 2
radius is
or 1 524 mm treads,
9498-AM, 2017-02-10
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