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Page 29
INITIAL OPERATION
CHECKING PRIOR TO INITIAL OPERATION
Hoists, including the supporting structure, must be inspected by an
appropriately trained and qualified person before initial operation
and before re-commissioning after significant modifications. Hoists
and lifting gear which are installed in trolleys must be inspected by
a specialist.
The inspection covers the proper mounting, equipment level and
operational-readiness, in the main, the completeness, suitability
and effectiveness of the safety devices as well as the condition of
the device, the harness, the equipment and the supporting
structure.
Safety devices are braking devices, overload protection devices,
EMERGENCY STOP devices, lifting and lowering limiters
(emergency end-stop devices).
A description of the inspections can be found in the section
Maintenance, page 40ff.
INITIAL OPERATION
If JDN Air Hoists are installed by the operator in trolleys or crane
systems, these motorised cranes must be inspected by an
appropriately trained and qualified person before initial operation,
following significant modifications and before re-commissioning.
JDN Air Hoists must be operated with a filter regulator to prepare
the compressed air. The filter regulator or service unit must not be
mounted further than 5 m away from the hoist when an oiler is used.
The optionally supplied service unit is supplied without oil. The oiler
and regulator are already adjusted.
Filling the optional oiler, see Lubricants, page 28, and Service
unit, page 48.
It is especially important for the operator to lubricate the chain
before initial operation of the hoist (see Lubricating the chain,
page 46, and Lubricants, page 28).
Ensure that the chain is running into the hoist properly before
working with the JDN Air Hoist. Before each operation, check that
the chain is not twisted and that the bottom block, if fitted, is not
defective. Straighten the chain if necessary.
Follow all relevant regulations for the attachment of loads!
Prior to each operation and after long breaks in operation, the
following measures should be performed in the specified order:
1. Check the power requirement (for compressed air and air
consumption, see Technical data, page 65ff) and the adjustment
of the service unit regulator.
2. Check the oil level in the oiler integrated in the service unit as
required and top up the oil if necessary (see Service unit, page
48).
3. Lubricate the chain if necessary.
4. Blow through the compressed air hose before connecting it.
5. Connect the compressed air hose (for hose size and air
connection thread, see Technical data, page 65ff).
6. Check the function of the brake and - in conjunction with this
- the actuating devices and emergency end-stop device
(see Checking lifting and lowering limiters, page 47).
Switch the unloaded JDN Air Hoist alternately between lifting and
lowering modes. The chain must be seen not to run on when the
control element is released. If the chain does run on and/or the
control element fails to return to the initial position, your JDN Air
Hoist must be sent for repair.
Содержание PROFI 25TI
Страница 1: ...JDN OPERATION AND ASSEMBLY INSTRUCTIONS FOR AIR HOISTS Original operation and assembly instructions...
Страница 67: ...powered by air Page 67 APPENDIX CIRCUIT DIAGRAM Rope control...
Страница 68: ...powered by air Page 68 APPENDIX Dual control...
Страница 69: ...powered by air Page 69 APPENDIX Dual control with pin valve Lower side OPTIONAL...
Страница 70: ...powered by air Page 70 APPENDIX Quadruple control...
Страница 71: ...powered by air Page 71 APPENDIX Quadruple control with pin valve Lower side OPTIONAL...