Different methods of snow off-road rescue

Step 1: Clearing Snow and Creating Adhesion

Use a snow shovel to remove snow from at least two meters in front and behind the tires until they touch solid ground or ice. If the snow is deep, it is necessary to clear a sufficiently long "running" passage. Insert the anti-skid or snow track at a slight angle in front of the tire to create an attachment point for starting. If the chassis touches snow and causes bottoming, it is necessary to first use a monkey climbing pole or an inflatable jack to lift the vehicle body, and then lay and compact snow blocks, tree branches, or special pads under the chassis.

Step 2: Reduce tire pressure and attempt self rescue

Moderately reducing tire pressure in snow can significantly increase the tire contact area. Engage low-speed four-wheel drive, choose second or third gear to start, keep the steering wheel upright, and lightly press the accelerator to feel the change in wheel adhesion. Once there is a forward trend, keep the throttle stable to avoid sudden acceleration causing the wheels to spin.

Step 3: Vehicle to vehicle soft traction

When self rescue is ineffective, rescue vehicles need to intervene. Use a snow specific trailer strap to connect the sturdy anchor points of both vehicles through a detachable buckle. Hang a prominent cable flag in the center of the trailer belt for easy observation and also serves as a buffer.

The rescue vehicle is attached to low-speed four-wheel drive, and after the towing belt is slightly straightened, it applies continuous and steady force. Avoid rushing in the snow, as it will only make the rescue vehicle's wheels spin empty. The trapped driver can lightly press the accelerator to cooperate after the towing begins, but must avoid excessive wheel spin and digging deep snow. The two vehicles need to maintain synchronization through clear signals.

Step 4: Winch Rescue

Use when rescue vehicles cannot safely approach. Connect the winch cable to the anchor point of the trapped vehicle through a shackle, and cover the cable with a damping material. Operate the winch to tighten at a constant speed, and the trapped driver should cooperate with the throttle in a timely manner. If the winch tension is insufficient, the pulley system can be used to double the force, and the anchor point can be a snow anchor or a live tree fixed with a tree holding belt.

Step 5: Multi vehicle collaborative traction

When the vehicle is deeply submerged or heavily loaded, multiple vehicles can be organized for series traction. The first vehicle is connected to the trailer belt, and subsequent vehicles are connected in sequence to form a "tug of war" traction chain. Each vehicle needs to maintain synchronized power and be commanded by the commander. This method requires extremely high communication and coordination requirements, and signals need to be rehearsed in advance.

Special risks of ice rescue

The most dangerous scenario in snow rescue is when the vehicle gets stuck at the edge of the ice or when the ice breaks. It is absolutely forbidden for anyone to approach without confirming the safety of the ice layer. The rescue vehicle must be parked on a solid shore, using an extra long towing belt (recommended to be over 15 meters) or repeatedly winding the pulley system to stay as far away from the danger zone as possible. Trapped individuals should slowly and smoothly transfer to a safe area, avoiding running or gathering on the ice surface.

Necessary disposal after rescue

After the vehicle is out of trouble, do not rush to leave. First, check if the connection points of both parties are intact, and if there are any damages to the trailer straps and shackles. Clean all equipment of ice and snow to prevent freezing damage. Use the onboard air pump to restore tire pressure to highway standards. Park briefly in a safe area and check for hidden damage to the tires and chassis.

In low-temperature environments, post-processing of equipment is particularly important. Wet trailer straps will freeze and harden, and need to be dried in a warm environment before storage. Apply a small amount of rust proof oil to the metal shackle to prevent corrosion from melting snow and salt water. All equipment should be counted and inspected before returning to its original position to ensure that it is in good condition for the next use.

Long term prevention of snow driving

The best way to avoid snow rescue is to prevent the vehicle from getting stuck. Snow driving should follow the principle of "slow, smooth, and far": slow speed, smooth operation, and far field of view. Avoid sudden acceleration and braking, and use engine traction to control vehicle speed. When snow covers the road surface, drive along the existing ruts, but be alert to the possible protrusion of hard ice in the center of the ruts. Carry snow chains and practice installing them in advance, and hang them on steep slopes or deep snow areas in advance.