Zoomlion QY30V, Руководство пользователя

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08 - 11 08 - 11
b) b) Position Position and and time time of of wire wire breaks; breaks;
c) c) Rope Rope diameter diameter reduction reduction during during working; working;
d) d) External External and and internal internal wear wear, , corrosion corrosion and and deformation; deformation;
Crane inspections Crane inspections
e) e) Damage Damage caused caused by by the the effects effects of of heat; heat;
f) f) T Total otal time time for for being being placed. placed.
For take-down criteria, please refer to the Chapt For take-down criteria, please refer to the Chapter 7 “Maintenance and service”. er 7 “Maintenance and service”.
Furthermore, the rope end connections must be checked regularly for reliability. Visible Furthermore, the rope end connections must be checked regularly for reliability. Visible
impression shall not be appeared at the contacting position between wire rope and impression shall not be appeared at the contacting position between wire rope and
drum and between wire rope a drum and between wire rope and pulley. nd pulley.
Special attention must be paid after any events that may lead to changes to the rope Special attention must be paid after any events that may lead to changes to the rope
and whenever the rope starts to be used again after being take down and then and whenever the rope starts to be used again after being take down and then
re-installed. re-installed.
8.4.7 Inspecting the mounting of the load bearing equipment 8.4.7 Inspecting the mounting of the load bearing equipment
Check that the mounting bolts for the slewing ring, slewing reducer and winch reducer Check that the mounting bolts for the slewing ring, slewing reducer and winch reducer
are properly seated at least are properly seated at least once a year. once a year.
Slewing ring connection mounting bolts are pre-stressed at the factory, so that no Slewing ring connection mounting bolts are pre-stressed at the factory, so that no
loosening of the bolted connections will occur during normal crane operation.
loosening of the bolted connections will occur during normal crane operation.
However, the bolted connection may become overloaded and the bolts may be However, the bolted connection may become overloaded and the bolts may be
permanently stretched if the crane is overloaded or if a fixed load is pulled free. It is permanently stretched if the crane is overloaded or if a fixed load is pulled free. It is
therefore important to check these bolts for proper seating during the annual crane therefore important to check these bolts for proper seating during the annual crane
inspection or after an overload has occurred. inspection or after an overload has occurred.
Completely remove loose bolts, plus the two adjacent ones, and immediately check for Completely remove loose bolts, plus the two adjacent ones, and immediately check for
damage. damage.
Inspect the bolts, particularly for cracks or permanent distortion. Replace any bolts that Inspect the bolts, particularly for cracks or permanent distortion. Replace any bolts that
have stretched more than 2% (referred to their original length) or that have cracks or have stretched more than 2% (referred to their original length) or that have cracks or
other damage. If any bolts have stretched or are otherwise damaged, also replace the other damage. If any bolts have stretched or are otherwise damaged, also replace the
two adjacent bolts. two adjacent bolts.
For tightening torque of mounting For tightening torque of mounting bolts, please refer to Appendix 2. bolts, please refer to Appendix 2.
8.4.8 Inspecting the oil and fuel reservoirs 8.4.8 Inspecting the oil and fuel reservoirs
Oil and fuel reservoirs shall be inspected at least once a year and checked all around Oil and fuel reservoirs shall be inspected at least once a year and checked all around
for leakage during the p for leakage during the periodic inspections every year. eriodic inspections every year.
Repairs shall only be carried out by Repairs shall only be carried out by trained and knowledgeable specialists. trained and knowledgeable specialists.
Improper repairs; e.g., welding, hard or soft soldering is not permitted, particularly if the Improper repairs; e.g., welding, hard or soft soldering is not permitted, particularly if the
Customer Service Department at ZOOMLION has not been consulted! Customer Service Department at ZOOMLION has not been consulted!
8.4.9 Inspecting the hydraulic system 8.4.9 Inspecting the hydraulic system