Lifting Operations - Manitowoc GROVE 5540F Operator's Manual

5540F/YB5515 OPERATOR'S MANUAL
Table 2-1
Wind Force
Beauford
Designation
Scale
Zero (0) Calm
1 Light Air
2 Light Breeze
3 Gentle Breeze
Moderate
4
Breeze
Reduce crane load ratings and operating parameters at 20 mph (32 km/h)
5 Fresh Breeze
6 Strong Breeze
Cease all craning operations at 30 mph (48 km/h); lower & retract boom
7 Moderate Gale

Lifting Operations

Before lifting, position the crane on a firm surface, properly
extend and set the outriggers, and level the crane.
Depending on the nature of the supporting surface,
adequate cribbing may be required to obtain a larger bearing
surface.
The crane is equipped with a bubble level that should be
used to determine whether the crane is level. The load line
can also be used to estimate the levelness of the crane by
checking to be sure it is in-line with the center of the boom at
all points on the swing circle.
If the boom extension, or auxiliary boom nose is to be used,
ensure the electrical cable and the weight for the Anti-Two-
Blo ck Swit ch are p rop erly ins ta lled an d t he LMI is
programmed for the crane configuration. Refer to the LMI
handbook supplied with the crane.
Verify the crane's capacity by checking the Load Chart
against the weight of the load. Then, lift the load slightly at
first to ensure stability before proceeding with the lift.
Be sure the load is properly rigged and attached. Always
determine the weight of the load before you attempt to lift it
and remember that all rigging (slings, etc.) and lifting devices
(hook block, boom extension, etc.) must be considered part
of the load.
Measure the load radius before making a lift and stay within
approved lifting areas based on the range diagrams and
working area diagrams on the crane's Load Chart.
Always keep the load as near to the crane and as close to
the ground as possible.
GROVE
Wind Velocity
mph (km/h)
less than 1 (<2) No wind; smoke rises vertically
1-3 (2-5) Wind direction seen by smoke but not by wind vanes
4-7 (6-11) Wind felt on face; leaves rustle; wind vane moves slightly
8-12 (13-19) Leaves/small twigs in constant motion: wind extends flag
13-18 (21-29) Raises dust & loose paper; moves small branches
Small trees in leaf begin to sway; on ponds, crested wavelets
19-24 (31-39)
form
Large branches in motion; telegraph wires whistle; umbrellas
25-31 (40-50)
used with difficulty
32-38 (52-61) Whole trees in motion; walking against wind is inconvenient
Published 10-21-2011, Control # 055-03
Visible Indicator
Effects of wind as observed on land
Do not overload the crane by exceeding the capacities
shown on the appropriate Load Chart. Death or serious
injury could result from the crane tipping over or failing
structurally from overload.
The crane can tip over or fail structurally if:
• The load and crane's configuration is not within the
capacity as shown on the applicable Load Chart and
notes.
• The ground is soft and/or the surface conditions are
poor.
• Outriggers are not properly extended and set. On
models equipped with outriggers that can be pinned at
the mid-extend position, the outriggers must also be
pinned when operating from the mid-extend position.
• Cribbing under the outrigger pads is inadequate.
• The crane is improperly operated.
Do not rely on the crane's tipping to determine your lifting
capacity.
Be sure the hoist line is vertical before lifting. Do not subject
the crane to side loading. A side load can tip the crane or
cause it to fail structurally.
Load Chart capacities are based on freely suspended loads.
Do not pull posts, pilings, or submerged articles. Be sure the
load is not frozen or otherwise attached to the ground before
lifting.
If you should encounter a tipping condition, immediately
lower the load with the hoist line and retract or elevate the
SAFETY INFORMATION
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