The ZUSL-3X elevating platform vehicle is powered by a diesel engine, with hydraulic mechanical transmission, four-wheel drive, forward driving, fully hydraulic articulated steering, large steering angle, flexible turning, and small turning radius. It is suitable for medium cross-section tunnel operations and has the following technical characteristics: ●The power system adopts Deutz water-cooled low pollution engine; ●The power transmission system adopts DANA power shift transmission, DANA drive axle, and mining pattern cutting resistant tires; ● The service braking adopts wet multi disc hydraulic brakes; MICO filling valve and brake valve; The parking brake adopts a manual directional valve to control the axle spring brake, ensuring safety and reliability; ●The frame is an articulated structure with reliable performance; ●Adopting a closed cab is safer and more comfortable.

Safety warning ●The operator of this machine must wear a safety helmet and carry a self rescue device and miner’s lamp with them when entering the well; ●This machine must be regularly maintained and inspected, and any hidden dangers should be promptly addressed; ●It is strictly prohibited to conduct maintenance while the machine is running; ●When the machine is undergoing maintenance, the power supply must be cut off and the words “under maintenance, no starting” must be hung; ● Overloading is prohibited on the platform; ●When welding and cutting, it is necessary to ensure that there are no flammable or explosive materials on the vehicle before operation;

●When the engine is running and the exhaust pipe has not cooled down after shutdown, it is strictly prohibited to touch the surface of the exhaust purifier and exhaust pipe to avoid serious injuries such as burns; ●When repairing the hydraulic system of this machine, the pressure must be completely relieved before operation can begin.

1) This machine is suitable for use in tunnels with a cross-sectional size of 3 meters (high) × In tunnels of 3 meters (width) and above The operation requires a firm top plate, a minimum turning radius of ≥ 6.25 m on the outside, and a road slope of ≤ 14 °, Seeking good ventilation and drainage in the workplace; 2) The ambient temperature of the tunnel is -5 ℃~40 ℃, and the maximum relative humidity is not more than 85% (at a temperature of 25 ℃) Hour); 3) The sulfur content of the fuel used in this machine shall not exceed 0.2%; 4) This machine is strictly prohibited from being used in places with flammable and explosive gases such as gas and coal dust;

2.1. Technical parameters ● Rated load of the platform: 3000kg ● Maximum platform height: 5000mm ● Maximum driving speed in gear I: 5 km/h Second gear: 11 km/h Third gear: 26 km/h Reverse gear I: 5 km/h Reverse gear II: 11 km/h Reverse third gear: 26 km/h

● Maximum climbing capacity (heavy load): 14 ° ● Maximum traction force: 80 kN ● Turning radius: 6610 mm ● Maximum height of the entire machine: 2210 mm ● Steering angle: ± 40 ° ● Minimum ground clearance: 295 mm ● Overall dimensions (length × wide × Height: 7850 mmx1800 mmx2210 mm ● Operating weight of the entire machine: 9500Kg 2.2. Engine ●Engine: Deutz water-cooled low pollution engine ●Rated power/rated speed: 115 kW/2200 r/min ●Maximum output torque: 750 N· m@1500 r/min ● Starting method: electric starting ● Exhaust emission method: ternary purification, purification and noise reduction ● Throttle control: hydraulic throttle controller 2.3. Transmission system ●Transmission model: DANA IT20320B ●Drive axle model: DANA112 Total speed ratio: 23.25 ● Tires: Inflatable tires 2.4. Braking system ●Brake pump: P124ADUZA07 Displacement: 15.2ml/r ●Maximum pressure of braking system: 10.5 MPa ● Service braking: wet multi disc brake Brake valve model: GL810-244-069 Release pressure: 69 bar ● Parking brake: axle pack spring brake 2.5. Steering system ● Type: articulated hydraulic steering ●Steering pump: PB5100A331 Displacement: 52.7ml/r

●Maximum pressure of steering system: 16 MPa ●Steering gear: BZZ-E630 ●Single stability valve: FLD-F48W ● Steering cylinder diameter/rod diameter: φ 80/ φ 45 mm 2.6. Electrical system ●System voltage: 24V DC ●Starting motor voltage/power: 24 V/6 KW ● Lighting: 2 front headlights, 2 × 42W， 24V 2 rear headlights, 2 × 42W， 24V 2 front headlights, 2 × 18W， 24V 2 mining signal lights, 24 V 1 cab ceiling light, 24 V 2.7. Tank volume ●Hydraulic oil tank: 120 L ●Fuel tank: 120 L ●Transmission: 25 L ● Drive axle main transmission part: 17L × two ●Drive axle wheel reduction part: 3.5 L × four ●Engine lubricating oil: 7.7L