Manitowoc Grove TMS9000-2 Series, Руководство по обслуживанию

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Grove
Published 01-14-2021 Control # 707-01
5-11
TMS9000-2 SERVICE MANUAL SUPERSTRUCTURE MAINTENANCE
5
Determining the Operating Conditions
(Collective Load)
The collective load of the crane is divided into groups:
(also refer to ISO 4301/1, FEM 1.001)
NOTE: When establishing the load spectrum, the existing
wire cable is used as a standard, i.e. under certain
circumstances, the crane can be supporting a
small load, whereby the hoist is actually supporting
a heavy load, e.g. due to insufficient reeving.
Therefore, the following graphic representation of
the load spectrum refers to the hoist's wire cables.
One of the load spectrums listed above is to be selected on
the basis of the actual operating conditions and entered in
the crane logbook for the respective testing interval. Note for truck cranes: In case of truck cranes in erection
mode, as a rule, the collective load L 1 is to be given with the
collective load factor Km = 0.125.
Collective
load
Class Term designation Working time proportion Collective
load factor
Km = Graphic representation
light
Q 1
L 1
Power units or their parts, which
are subjected to highest load as
an exception, continuously
however only very less load 10 % of the operating time
with highest load (dead load +
1/1 payload)
40 % of the operating time
with dead load + 1/3 payload
50 % of the operating time
only with dead load
0.125
medium
Q 2
L 2
Power units or their parts, which
are very often subjected to
highest load, however
continuously less load subjected
to load 1/6 of the operating time with
highest load (dead load + 1/1
payload)
1/6 of the operating time with
dead load + 2/3 payload)
1/6 of the operating time with
dead load + 1/3 payload)
50 % of the operating time only
with dead load
0.25
heavy
Q 3
L 3
Power units or their parts, which
are frequently subjected to
highest load and continuously to
medium load 50 % of the operating time
with highest load (dead load +
1/1 payload)
50 % of the operating time
only with dead load
0.5
very heavy
Q 4
L 4
Power units or their parts, which
are regularly subjected to loads
close to maximum loads. 90 % of the operating time
with highest load (dead load +
1/1 payload)
10 % of the operating time
only with dead load
1
Fo
r
Reference
Only