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XR280E-1247 Rotary dilling rig

Optimally designed double swing arm luffing mechanism and optimized hinge point position take account ofthe construction stability and the transportation convenience at the same time; I adopts H-spe hydraulie rernctable crawlerchasis deticated for rotary drilling rigs and large-diameter slewing bearing to ensure superior stabiliy and convenient transportation; It adopts imported Volvo engine with strong power, which effectively reduces fuel consumption and use cost; The hydraulic system adopts load sensing technology with total power control and limit power control, making the hydraulie system more efficient and energy-saving, independent radiator system provides high heat dissipation efficiency; The proprietary single-ow rope main winch of XCMG effecively solves the twine problem and greatly prolongs the service life ofwire rope; The rolary drive owns hormal mode special for soil layers and rock-entering mode special for rock formations, which improves construction efficiency, the autorotation of rotary drive can achieve continuous adjustments of speed in normal mode and rock-entering mode;

+86-18577172999

E-mail：18577172999@163.com

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Product classification

Products

Drilling Rig

Keywords

PRODUCT DETAILS

XR280E主要技术参数
Main Technical Specification

最大钻孔直径 Max. Drilling diameter		mm	Φ2500
最大钻孔深度 Max. Drilling depth		m	94
工作尺寸 Working condition dimension		mm	10825480025500
工作重量 Overall weight		t	100
履带 Crawler	履带宽度 Width of crawler	mm	3500-4800
	履带板宽 Shoes Width	mm	800
	履带长度 Length of crawler	mm	6150
	接地比压 Ground pressure	kPa	125
	行走速度 Traveling speed	km/h	0~1.5
钻桅 Mast	左右倾角 mast left/right	°	4
	前倾 mast front	°	5
	后倾 mast back	°	15
动力头 Ratory drive	扭矩 Max. output tortue	kN·m	300
动力头 Ratory drive	转速 Rotational speed	r/min	6~27
油缸加压 Crowd cylinder	加压油缸最大加压力 Max. Pushing force	kN	260
	加压油缸最大提升力 Max. Pulling force	kN	330
	加压油缸行程 Max.stroke	mm	6000
主卷扬 Main winch	主卷扬最大单绳速度 Max. single-rope speed	m/min	75
	主卷扬钢丝绳直径 Diameter of the steel wire rope	mm	36
	主卷扬提升力 Lifting force	kN	330
副卷扬 Auxiliary winch	副卷扬提升力 Lifting force	kN	100
	副卷扬最大单绳速度 Max. single-rope speed	m/min	41
	副卷扬钢丝绳直径 Diameter of the steel wire rope	mm	20
发动机 Engine	型号 Model	/	TAD1352VE
发动机 Engine	功率 Rated power	kW	315
液压系统 Hydraulic system	最大流量 Maximum Flow Rate	L	2×380L/min+180L/min
液压系统 Hydraulic system	最大工作压力 Max. working pressure of main pump	MPa	33

XR280E-1247 Rotary dilling rig

+86-18577172999

E-mail：18577172999@163.com

Product Consulting

Product classification

Products

Drilling Rig

Keywords

PROVIDE HIGH-QUALITY SECOND-HAND CONSTRUCTION MACHINERY AND EQUIPMENT TO CUSTOMERS AROUND THE WORLD

10000 +

Annual Sales Volume

60 +

Selling to more than 60 countries

300 +

Cumulative service customers

FAQ

A common fault troubleshooting for engine failure to start

Rotary Drilling Rig Engine Failure to Start (Fuel Pump Fault)

I. Basic Case Information

Product: Rotary Drilling Rig
Model: XCMG XR220D
Working Hours: 3400

II. Fault Phenomenon

The engine fails to start.

III. Fault Analysis

The starting motor circuit and key switch circuit were inspected and found to be normal.
The diesel oil circuit from the fuel tank to the engine was checked for blockage, along with the fuel filter element; both were normal.

IV. Troubleshooting Process

The oil inlet pipe of the fuel pump was removed, and a large oil output was observed. The hard pipe on the engine common rail was removed for inspection, and a small oil output was found.
The high-pressure fuel pump was disassembled and cleaned, revealing severe internal wear and impurities such as oil sludge.
The worn eccentric shaft inside the pump was replaced, and internal impurities were cleaned; the engine started normally afterward.

V. Fault Cause (Conclusion)

Severe internal wear of the fuel pump resulted in failure to build up sufficient fuel pressure, which could not meet the fuel supply pressure required for normal engine start.It is recommended that the customer use higher-quality diesel, replace the filter element in a timely manner, and clean the fuel tank regularly.

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