Raising And Setting Down The Main Boom With Rigged Lattice Extension; Telescoping With Rigged Lattice Extension; Operating With The Lattice Extension; Procedure If The Permissible Wind Speed Is Exceeded - Manitowoc Grove TMS800E Service And Maintenance Manual

TMS800E SERVICE MANUAL
During Transport
• Insert the plug of the connecting cable into the dummy
socket (2) Figure 4-73
• Wind the connecting cable onto the holders (3).
• Plug the short-circuit plug into the socket (1).
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RAISING AND SETTING DOWN THE MAIN
BOOM WITH RIGGED LATTICE EXTENSION
NOTE: The information in this section also applies for
raising and setting down the main boom with a
rigged jib.
To raise and lower the main boom with a rigged
lattice extension, the main boom must be fully
retracted.
For raising and lowering, the following prerequisites must be
fulfilled:
- Apart from the hook block there is no load on the
lattice extension.
GROVE
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w2731a
FIGURE 4-73
Published 01-29-2014, Control # 496-00
TELESCOPING WITH RIGGED LATTICE
EXTENSION
CAUTION
The main boom may become overloaded!
If you telescope the main boom with a rigged lattice
extension or jib. You must not rotate the superstructure at
the same time. This prevents the main boom being
subjected to additional side forces and increased
vibration and becoming overloaded.
NOTE: Do not actuate the slewing gear when telescoping.
OPERATING WITH THE LATTICE
EXTENSION
NOTE: The information in this section also applies to
operation with the jib. Observe the following safety
instruction before working with the jib.
CAUTION
Risk of overturning when working with the jib!
When lifting over the swingaway and/or jib combinations,
deduct the total weight of all load handling devices reeved
over the main boom nose directly from the swingaway or
jib capacity.
NOTE: The hoisting, lowering, swinging, lifting and
telescoping movements are done in the same way
a s w h e n o p e r a t i n g w i t h t h e m a i n b o o m .
Telescoping is permitted only at main boom angles
of approximately 75° - 80°, depending on the length
of the lattice extension.
Procedure if the Permissible Wind Speed is
Exceeded
Strong winds can overstrain the crane. Therefore, closely
observe the instructions in table.
If the maximum permissible wind speed according to the
lifting capacity table is exceeded during the main boom
operation, proceed as in Table 4-1:
Table 4-1
with wind speed
up to 66 ft/s
• Set down the load.
• Slew the superstructure
so that the main boom
creates as little wind
resistance as possible.
BOOM
with wind speed
over 66 ft/s
• Set down the load.
• Fully retract the main
boom.
• Set down the lattice
extension.
4-49
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