Zoomlion ZCC1100H, Руководство оператора

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履带起重机操作手册
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Operator’s Manual for Crawler Crane
Operator’s Manual for Crawler Crane
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ZCC1100H Crawler Crane 3-49
3.9.2.3 Preparation for crane operation
Crane operator should perform the following checks before operating the crane:
a) Check the daily record of work to ensure that all regular inspections, maintenance and
repair works are performed.
b) Check the boom frame limiter, boom angle indicator, tilting-back support and other safety
equipment for functional work.
c) Check if the load-bearing parts such as wire rope (hoisting rope, derricking rope and sling
etc.), boom, outriggers, hook and load handling devices are kept in good working order.
d) Check if there are some bolts, nuts and pins lost, and whether the components are
cracked or damaged.
e) Ensure that no modification has been made to the crane without permission, e.g., increase
or decrease in counterweight plate and improper repair of boom frame.
f) After starting up the engine, check if the values shown on instruments are normal.
g) Check fuel lines and hydraulic oil lines for leakage.
h) Check all control mechanisms for functional work.
i) Check brakes and clutch. Test the braking performance by lifting a load away from the
ground and suspend it in the air for a moment.
j) Keep communication between the operator and rigger.
k) Estimate the weight and dimensions of load to be lifted in advance.
l) Crane operation can be carried out within minimum working radius. No obstacles hinder
necessary movements. The ground at the job site is able to support expected loads.
m) Ensure that no obstacles are within working radius and the operator can see the load
clearly from the cab. Check if the communication between operator and signalman is kept
smooth so as to ensure safe crane operation.
n) Make sure that the crane has enough load-bearing capacity before operating the crane.
What
’
s more, the ground should be firm, level and flat. Never operate the crane on the soft
and uneven surface or on the ground of high water content or covered with frozen soil. If
the crane is set up close to trenches, reinforce the trenches to avoid landslide. If the
ground does not have adequate load-bearing capacity, the crane is liable to turnover. In
this case, crosstie, steel plates should be padded underneath the crawler to distribute load
so that the load-bearing capacity of the ground will not be exceeded; make sure that the
crane is leveled.
o) Make sure that the crane is operated on level ground and the inclination is not more than
1% (
±
0.57°).
p) The method for checking if the crane is levelled:
After the crane is placed well, lift the load hook in a proper position so that it can swing
freely. At this time, the operator must stand in front of the crane and observe the following
conditions.