DEMAG DC-Com 1, Руководство по эксплуатации

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7.3 Operation
7.3.1 Safety during operation
DANGER
Danger of broken chain and falling load
The chain may break and loads may fall if the emergency limit position limiter is frequently approached.
The chain hoist slipping clutch provides the emergency limit position limiter function for chain hoists that are not
fitted with an operating limit switch or which have a defective operating limit switch. This emergency limit position
limiter may only be approached in exceptional cases, i.e. it must not be approached in normal operation. High
additional loads occur in the chain when the slipping clutch is tripped.
For this reason, the "operating limit switch for lifting" function must be checked every day.
WARNING
Overload
Danger to life and limb.
Higher loads than those specified on the load capacity plate must not be handled.
–
Do not exceed the maximum permissible load capacity of the hoist.
– Only use load handling attachments which are adequately dimensioned.
– Only use load handling attachments for their intended purpose.
WARNING
Movable parts may start moving.
Danger to life and limb.
The control pendant is designed to be suspended from its connecting cable. It may only be used as suspended
equipment. It must not be deposited in/on transport containers, workbenches, etc., or in any other way.
Important information for operation
Observe the following during operation:
– Take the machine out of service immediately if functional defects or irregularities are detected.
– The operator is obliged to check the machine for any visible damage at least once per shift and to report any
damage immediately.
– Do not render safety devices inoperative.
– Do not approach limit stops in normal operation, e.g.: emergency-stop devices (emergency limit switches),
emergency limit stop devices (slipping clutch or emergency limit switch), track and limit buffers to stop move‐
ment of the crab or crane, hook assembly or bottom block against limit stops. Continuously approaching
these limits may result in severe damage and may even break the hoist chain.
– Pay attention to all regulations regarding the correct loading of chains.
– Do not reach into rotating parts and maintain a sufficient safety distance to prevent clothing, parts of the
body or hair becoming entangled.
7.3.2 Load pick-up
– The load handling attachment and load must be flexibly suspended. Rigid connections cause uncontrolled
forces to be transmitted and lead to fatigue fracture. To protect the chain from unwanted torsion when the
load turns, movement of the hook assembly/bottom block must not be restricted.
– The bottom block must not be twisted or turned over for 2/1 reeving arrangements; chain links facing the
same direction must be arranged opposite each other without being twisted.
– When attaching the load, ensure that the load or load attachment does not slip off the hook and that the load
does not fall over, fall apart, slip or roll off when it is picked up or set down.
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