Dispatch should know how many lift axles a truck has, where they are positioned, whether they are raised or lowered, and whether the controls and air system still work. These details help the towing service send an appropriate heavy tow truck and prepare for the vehicle’s weight, configuration, and condition.
In Queen Creek, AZ, commercial trucks may use lift axles to support changing loads or improve how weight is distributed across the vehicle. When the truck breaks down, those additional axles become an important part of the towing assessment.
What Is a Lift Axle?
A lift axle is an additional axle that can be raised when it is not needed or lowered to help carry weight. Depending on its position, it may be called a pusher axle when mounted ahead of the main rear axle group or a tag axle when positioned behind it.
Lift axles are found on various vocational and commercial vehicles, including dump trucks, concrete mixers, refuse trucks, crane trucks, and other vehicles that carry changing loads. Some systems are controlled manually, while others may raise or lower automatically according to load conditions.
The axle may also be steerable or non-steerable. That distinction can affect how the vehicle turns, rolls, and responds while being positioned for towing.
Why Does the Axle Configuration Matter?
A truck’s axle configuration affects more than its total weight. It can influence wheelbase, turning space, ground clearance, rear overhang, weight distribution, and the points that can be used during recovery.
Two trucks with similar bodies may require different towing plans if one has a raised pusher axle and the other has a lowered tag axle. The vehicle’s cargo and mounted equipment can create additional differences.
Dispatch may need to determine:
- How many total axles the truck has
- Where each lift axle is positioned
- Whether the axle is steerable
- Whether it is currently raised or lowered
- Whether its tires can roll
- Whether the axle appears damaged
Accurate information allows the tow operator to evaluate the configuration before arriving rather than discovering an unexpected axle arrangement at the roadside.
What Details Should the Driver Provide?
The driver or fleet manager should begin with the truck’s year, make, model, body type, estimated weight, and current load. Dispatch should also be told whether the vehicle is carrying cargo, tools, liquids, construction materials, or mounted equipment.
For the lift axle, useful details include whether the controls are located inside or outside the cab and whether the system depends on air pressure. Drivers should mention any warning lights, air leaks, damaged tires, bent components, or problems raising or lowering the axle.
The vehicle’s overall condition is equally important. Dispatch should know whether:
- The engine can run
- The air system can build pressure
- The brakes have released
- The steering operates
- The transmission can shift
- The drive wheels can rotate
- The truck has collision or suspension damage
These details help determine whether the call involves straightforward towing or a more involved recovery.
Why Does Air-System Condition Matter?
Many lift axle systems use air pressure to raise, lower, and support the axle. If the truck has lost air pressure, the axle may not remain in its normal position or respond to its controls.
A manufacturer’s operating guidance for one non-steerable auxiliary lift axle system instructs operators to let the truck’s air system build pressure before raising or lowering the axle. The guidance also notes that operation varies according to the system’s brand, configuration, and condition.
Drivers should not experiment with unfamiliar lift-axle controls during a roadside breakdown. Instead, they should describe the axle’s position and any known air-system problems to dispatch.
Can a Truck Be Towed by Its Lift Axle?
The lift axle should not be assumed to be an acceptable towing or attachment point. The tow operator must evaluate the truck’s structure and follow suitable vehicle and equipment procedures when deciding where and how to connect the heavy tow truck.
Hendrickson’s guidance for its non-steerable auxiliary lift axle systems specifically states that a vehicle should not be towed by the auxiliary axle because doing so can damage the axle.
This is one reason dispatch needs to know that the axle is present. The towing plan must account for it without treating the auxiliary axle as a convenient pulling point.
What Photos Can Help Dispatch?
Clear photos can communicate details that are difficult to explain over the phone. Useful images include both sides of the truck, the front and rear, the lift axle, the surrounding roadway, and any visible damage.
Drivers should also photograph the space around the vehicle when it is located near a loading dock, construction site, narrow shoulder, gated yard, ditch, or soft ground. A heavy tow truck requires enough room to approach, position, and leave the scene.
Photos do not replace an on-site assessment, but they can help dispatch identify possible clearance, access, and equipment concerns.
Does the Vehicle’s Location Change the Towing Plan?
Yes. A disabled truck on an open commercial lot presents a different situation from one stopped on a narrow road, backed against a loading dock, or positioned on uneven ground.
Dispatch should receive the exact location, direction of travel, nearby intersections, available shoulder space, gate instructions, and any overhead or side-clearance restrictions. In Queen Creek, drivers should also mention unpaved access roads, loose ground, active construction areas, and limited turning space.
If a trailer is attached, its size, axle count, cargo, and position should also be reported. Dispatch needs to know whether the tractor and trailer can be separated or must be handled together.
How Does Clear Information Support Heavy Truck Towing?
Lift axles affect a truck’s dimensions, movement, and weight distribution, so they should be reported at the beginning of the call. Knowing the axle position, type, condition, and control status helps the towing provider prepare for the actual vehicle rather than relying on a general truck description.
Evan’s Towing serves Queen Creek and surrounding East Valley communities. Drivers and fleet managers arranging heavy duty towing can contact them with the truck configuration, lift-axle details, cargo information, damage, location, and access conditions so their dispatch team can evaluate the next step.
