Crane maintenance knowledge contact, crane wear degree is relatively high, the usual maintenance is particularly important, what are the crane maintenance knowledge, small as we bring crane maintenance knowledge for reference.
Crane maintenance knowledge, knowledge on the maintenance standard crane we have made a brief introduction, to introduce the following key aspects of crane maintenance knowledge:
A、Daily maintenance: each class before and to check the maintenance record.
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Check the reducer of oil, such as less than the prescribed oil level, should be timely refueling oil must be clean, there shall be no corrosive and clean oil mix, filter filling application.
The speed reducer oil label: hoisting mechanism speed reducer: No. 70 industrial gear oil
The structure of rotary speed reducer: No. 90 gear oil
Traction mechanism reducer: No. 70 industrial gear oil
Note: no 70# industrial gear oil, also can use 40 or 30 machine oil instead of
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The lifting mechanism and the traction mechanism reel bearing check both ends of the rolling bearing lubrication, when necessary, with 2 calcium base grease, oil cup oil should be guaranteed.
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The slewing mechanism, size of gear pair and rotary rolling bearing grease smearing.
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Check the power cable is damaged, the joints without loosening and wear dust removal equipment.
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Check the contactor, contact and corrosion contact controller.
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Check all connection bolts are loose, and timely tightening and supplement.
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Check the lifting wire rope and wire rope traction, such as broken shares more than 5% or more than 5% of the nominal diameter wear, wire rope should be updated. Check the wire rope end is firmly fixed, rope clamp bolt is loose, and timely treatment.
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Check the safety device, such as work failure, should be timely adjustment or maintenance, especially the lifting torque limit for weight limit should ensure its reliability.
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Check the lifting mechanism and the rotary mechanism of braking efficiency, such as not sensitive and reliable, should be timely adjustment.
B. Regular maintenance: every half a month, and check warranty records.
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Daily maintenance.
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The lifting pulley and pull rod and bearing fit, trolley pulley and pulley wheels, hook group, rotary bearing pressure injection at No. 4 calcium base grease.
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The lifting and luffing rope after a period of time the length of elongated, need to re adjust the wire rope, and re adjust the lifting height limiter and amplitude limiter.
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To each part of the connecting bolt, wire rope clamp and rope clamp bolt or nut tightening at the time, should be replaced when necessary.
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The insulation of the electric transmission equipment must be reliable or not leakage
