Camion-grue Beiben
The Beiben 6×6 truck mounted knuckle boom crane, built on an all wheel drive off road chassis, delivers hoisting and transportation operations under complex field conditions. It is widely applied in emergency engineering rescue and field material handling. Standardized operating practices and systematic maintenance can not only avoid safety hazards but also extend the service life of both the complete vehicle and the crane. This article sorts out core operational essentials and maintenance specifications to help equipment maintain stable performance and reduce unplanned downtime failures.
1. Overview of the Beiben 6×6 Knuckle Boom Crane Truck
The Beiben 6×6 knuckle boom crane truck consists of an all wheel drive off road chassis and a knuckle boom crane. The chassis adopts the NG80 wide body cab, equipped with a Weichai engine and a Fast transmission. With three axle full time drive and 14.00R20 off road tires, it features outstanding trafficability and self recovery capability on unpaved surfaces such as muddy ground, snow covered terrain and soft subgrade. Its frame adopts the Mercedes Benz technology fish belly variable cross section structure with high torsional rigidity, laying a stable foundation for heavy load hoisting operations.
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Chassis |
Beiben NG80B 6×6 |
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Engine |
WP12.420E32, 420HP |
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Transmission |
FAST 12-speed |
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Front/rear axle |
7000 kg /13000 kg |
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Transfer case |
LF200 |
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Tires |
14.00R20, 6+1 pcs |
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Crane specifications |
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Crane model |
Crane model |
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Max lifting capacity |
Max lifting capacity |
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Max lifting moment |
Max lifting moment |
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Max. outreach |
Max. outreach |
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Max. lifting height |
Max. lifting height |
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Crane working radius |
Crane working radius |
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Slewing angle |
Slewing angle |
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Outrigger span |
Outrigger span |
2. How to Operate the Beiben 6×6 Truck Mounted Knuckle Boom Crane
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3. Maintenance Schedule
| Maintenance Interval | Maintenance Items |
| Every 50 hours | • Check for leaks at system connections and cylinders |
| • Check tightness of mounting bolts | |
| Every 450 hours or every 6 months | • Grease slewing unit of column |
| • Grease articulation points | |
| • Grease telescoping boom | |
| • Grease the piston rod out of cylinder | |
| • Check wear of sliding pads; replace if worn | |
| • Replace hydraulic oil filter and air breather filter | |
| • Check the worn rope and replace it in time | |
| Every 900 hours or once a year | • Test hydraulic cylinders |
| • Check tightness of base screw | |
| • Check hydraulic system settings and efficiency of safety devices | |
| • Check tightness of crane screw | |
| • Check crane structure | |
| • Check/replace adjusting screws and sliding pads | |
| • Replace oil |
4. Analysis & Eliminate for General Faults
| Faults | Causation | Eliminate |
| Vibrations in crane cylinder; boom extension jerk during initial maneuver | 1. Some air in the hydraulic system | 1. Exhaust the air by movement |
| 2. Worn cylinder seals | 2. Replace the cylinder seals | |
| 3. Dirt in the balance valve | 3. Clean the balance valve | |
| Slowing down of all movements, even without load on hook | 1. Crushed or dented suction hose. | 1. Replace suction hose |
| 2. Air suction | 2. Tightness the joint of suction hose | |
| Boom extension do not open in sequence. | 1. Lack of lubrication | 1. Grease it |
| 2. Worn slide pads | 2. Replace slide pads | |
| 3. Wrong boom extension valve settings | 3. Adjust the valve | |
| Crane does not lift rated capacity load. | 1. Inefficient pump | 1. Replace pump |
| 2. Wrong relief valve settings | 2. Adjust the valve | |
| 3. Worn hydraulic pump seals | 3. Replace the pump seals | |
| Boom down automatically with load raised | 1. Worn piston rod seals of derricking cylinder | 1. Replace cylinder seals |
| 2. Balance valve port were stopped or worn the recover spring. | 2. Clean the balance valve and replace the spring | |
| Crane can’t slewing exactly | 1. Exceed the max gradient of truck | 1. Recover the truck in accepted error |
| 2. Something in the buffer valve | 2. Clean or replace the slewing buffer valve | |
| 3. Worn the slewing cylinder seals | 3. Replace the seals | |
| 4. Worn the backstop inside the gear pole | 4. Replace the backstop | |
| Joint or slewing parts sounds | Lack of lubrication | Greased it at specified intervals |
| Outrigger leg cylinder can’t support the load | 1. Double-valve inefficient | 1. Clean or replace valve |
| 2. Worn the piston rod seals of leg cylinder | 2. Replce seals | |
| Cylinder leak oil | 1. Worn the seals | Replace seals |
| 2. Worn the piston seal ring | ||
| Noise and fluctuating of pressure are big, hydraulic valve outcry. | 1. Suction hose or suction net are stopped | 1. Remove the dirt |
| 2. The glutinosity of oil is high | 2. Replace oil or warm it | |
| 3. Bad seal for suction port and air is sucked | 3. Replace seals and tightness bolt | |
| 4. The parts in the pump were worn | 4. Replace or maintenance the inner parts | |
| 5. The system pressure is high | 5. Adjust the system pressure |
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5. FAQ
Q1: How do you choose between a knuckle boom crane and a telescopic boom crane?
The knuckle boom crane can be folded. It occupies no cargo box space when stowed, making it suitable for working conditions that require integrated hoisting and transport and confined space operations. A telescopic boom crane offers longer boom length and higher lifting efficiency, ideal for fixed point hoisting in open air sites.
Q2: How often should the hydraulic oil be replaced?
For new equipment, the first service is generally at around 500 operating hours or 3 months, whichever comes first. Subsequent replacement is required every 1000 operating hours or 1 year. Always follow the crane manufacturer’s manual for exact specifications.
Q3: What certificates are required for operation?
According to regulations, operators must hold a Special Equipment Operator Certificate for lifting machinery operations. Complete manufacturer provided training and get familiar with the load moment limiter before taking up duties.
Q4: Is hoisting permitted under severe weather conditions?
Stop all hoisting operations in wind force Grade 6 or higher, thunderstorms or heavy fog. For snow site operations, pay attention to outrigger anti slip measures and ground bearing capacity.
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