Manitowoc National Crane 500E2 User Manual

SET-UP OPERATOR MANUAL 500E2
4-4 Published 07-26-2019 Control # 111-06
Overloading a crane can cause
many types of failure depending on
the configuration and working
position of the crane, such as
structural damage to almost any part
of the crane, hoist or cable failure
and tipping the unit over.
The load chart shows the maximum rated loads including
load (weight being lifted), load handling equipment such as
slings, buckets, and downhaul weight that can be handled by
the crane and the hoist. The weight of the load handling
equipment and boom attachments must be deducted from
the maximum load rating shown on the load chart to
determine the payload which can be lifted. Additional
reduction may be necessary to make allowance for such
factors as the effects of freely swinging loads, wind, ground
conditions, out-of-level conditions and operating speeds.
The ratings shown on the outrigger full span load chart are
maximum loads and are based on:
- the structural integrity of the crane in shaded areas,
- the stability of the crane in non shaded areas.
The stability or non shaded areas represent a stability tipping
factor of 85% (Note: For New York City approved units, the
stability or non shaded areas represent a stability tipping
factor of 75%) when:
1. All outriggers are extended with positive contact on firm,
level surface, the tires are free of the ground and the
machines level within 1°.
2. The proper amount of counterweight has been installed,
if required.
3. The unit is mounted in accordance with factory
instructions on a vehicle with proper specifications.
4. The weight of load handling devices is considered as a
part of the load being lifted.
5. The correct loadline reevings used for the load to be
lifted.
6. Adverse environmental conditions such as wind are not
present.
7. The operator controls the loads smoothly.
8. Tires are inflated to the proper pressure.
9. The load to be handled does not exceed the maximum
capacity at the boom length and loaded radius.
10. The loads are lifted in the proper area around the truck.
A stability test should have been performed on this crane
and can be repeated by referring to the Installation Section of
the Service Manual.
All capacities are given in direct relationship to the boom
length and loaded radius at which the loads being handled.
• All radii are measured from the centerline of rotation to
the loadline with the load suspended.
• All variances of loads and radii of operation are shown
on the load chart mounted on the main frame.
• Boom angle should be used as reference only to aid in
determining radius.
• The correct loaded radius must be measured and not
exceeded during any point of the lifting operation.
• The placards located at the operators platform for the
purpose of informing the operator when a load can or
cannot be handled.
• Load ratings cannot be interpolated between load points
shown on the chart in the boom areas.
• When boom length or radius or both are between points
listed on load chart, the smallest load shown at either the
next larger radius or boom length shall be used.
• Capacities of the jib cannot be interpolated between
angles nor at reduced lengths because the strength of
the jib and its attachment point to the boom does not
increase when the boom is shortened.
NOTE: Rated loads shown on the load chart pertain to this
machine as originally manufactured and equipped.
Modifications to the machine or use of equipment
that is not factory specified or approved can be
hazardous. Refer to capacity deduction chart for
weights which must be deducted from rated loads
when accessories are attached to boom or
loadline.
Set-Up
1. Inspect vehicle and crane including crane operation
prior to use each day.
2. Load ratings shown on the chart are maximum allowable
loads with the crane mounted on a factory approved
truck and all outriggers set on a firm level surface so the
crane is level; ensure the Outrigger Status Indicator
illuminates green before making a lift. This crane is not
rated for use without outriggers.
3. Depending on the nature of the supporting surface,
structural supports under the outrigger floats may be
necessary to spread the load to a larger bearing surface.
4. Always level the crane with the level indicator located at
the operator stations located on either side of the crane
frame.
Operation
1. Operation of this equipment in excess of maximum load
rating and disregard of instructions is hazardous. Always
refer to the load chart for load and area limits before
operating the crane. Rated loads at rated radius shall
Block
+
Sling
+
Load
Total Rated
Load

Manitowoc National Crane 500E2 Specifications

General

Brand	Manitowoc
Model	National Crane 500E2
Category	Construction Equipment
Language	English