Lifting with Confidence: How the BDHJ-35 Jacking System Reduces Risk During Underground Mining Haul Truck Maintenance

When you work in mobile maintenance, you know that few environments test equipment—and people—quite like the underground mining sector. Tight spaces, uneven ground conditions, strict production schedules, and machinery weighing hundreds of tonnes demand absolute precision when it comes to safe lifting. The pressure to keep haul trucks moving never goes away, and neither does the responsibility to protect the people who keep them running.

That’s why B&D Manufacturing developed the BDHJ-35 Jacking System—an engineered, heavy-duty lifting solution built to help mobile maintenance teams work smarter, safer, and with total confidence. Whether you’re servicing drive lines, suspension components, or massive tire assemblies, the BDHJ-35 is designed to bring stability, efficiency, and peace of mind to every underground lift.

In this blog, we break down how this system transforms maintenance workflows and mitigates the risks typically associated with lifting haul trucks underground.

The Importance of Safe Lifting in Underground Environments

Underground mines are a uniquely challenging setting for mobile equipment maintenance. Your team is often working on uneven ground, navigating tight access points, and constrained by ventilation, clearance, and production timelines. Manual cribbing or improvised lifting setups not only slow the job—they increase risk.

A controlled, engineered lifting system is essential because:

• Stability matters more underground than anywhere else.
• Load shifts can be catastrophic when space is limited.
• Equipment reliability and predictability must be absolute.

This is where the BDHJ-35 truly shines. It brings engineered consistency to an environment where unpredictable conditions are the norm.

Engineered Stability: The Core of the BDHJ-35

Maintenance teams often share the same concern: “Will the truck stay stable during the repair?” The BDHJ-35’s design directly responds to that worry with features that boost safety and eliminate guesswork.

Purpose-Built for Heavy Underground Haul Trucks

Rated at 35 tons per jack (70 tons per pair) the system gives technicians the confidence to safely lift large underground trucks used in today’s high-production operations. The jacks are developed specifically for mining maintenance—not repurposed from general industrial use.

A Stable, Ground-Engaging Footprint

The BDHJ-35 uses a wide, engineered base designed to distribute the load evenly, even on less-than-perfect underground flooring conditions.
This means:

• Less sinking
• Less shifting
• Less need for additional stabilization measures

In short: your work area becomes safer before the wrenching even starts.

Synchronized Lifting That Reduces Human Error

Unlike manual crib systems or stand-alone jacks, the BDHJ-35 functions as a coordinated lifting unit. With optional synchronization, the system helps ensure the truck rises evenly—eliminating twisting, uneven weight distribution, and unnecessary strain on the frame.

This reduces:

• Risk of equipment damage
• Risk of unintended movement
• Physical strain on technicians

Consistency equals safety.

Better Access, Better Workflow, Better Results

Safe lifting isn’t the only reason maintenance teams love the BDHJ-35. It also improves the efficiency and flow of the job.

Faster Set-Up Means More Wrench Time

Every mobile maintenance crew knows the feeling: the clock is ticking, and you’re still building up supports or cribbing. The BDHJ-35 drastically reduces set-up time with its straightforward, mine-ready design.

Teams can:

• Position the jack quickly
• Elevate the truck with minimal steps
• Get straight into the repair task

The result? More time spent actually fixing the machine.

Improved Access to Drives, Suspensions & Tire Assemblies

Once a haul truck is safely lifted, the BDHJ-35 provides a stable work window for high-risk repair zones:

• Drive lines – No shifting or unexpected sag allows for safer component removal.
• Suspension – Sturdy elevation makes both disassembly and alignment easier.
• Tire & hub work – Stable lifting means technicians can remove massive components without unpredictable load changes.

In short, each task becomes safer, smoother, and less physically demanding.

Better Ergonomics & Reduced Strain

When the truck is lifted properly, technicians can get into better working positions. Reduced bending, awkward reaches, and unsafe working angles translate directly into fewer injuries and more efficient repairs.

A System Designed for Mining, Backed by Real-World Usability

At B&D Manufacturing, we know that equipment is only useful when it works as hard as the people using it. That’s why usability and reliability were core priorities for the BDHJ-35’s design.

Built to Survive Harsh Conditions

From heavy dust to vibration to extreme temperatures, each component is tested to withstand the realities of underground mining.

Intuitive Controls for Confident Operation

Operators don’t need complex training or specialized skills to use the BDHJ-35 effectively. The controls are clear, simple, and built around technician safety.

Compatible With Existing Mining Workflows

There’s no expensive overhaul required. The BDHJ-35 integrates into the maintenance processes you already use, making adoption quick and straightforward.

Reducing Risk—Not Just During the Lift, but Throughout the Job

A safer lift leads to a safer repair. By introducing stability at the very start of the job, the BDHJ-35 reduces multiple downstream risks:

• Dropped-load hazards
• Unexpected truck movement
• Cribbing collapses
• Jack failure due to misalignment
• Strain injuries from awkward positioning
• Damage to expensive truck frames and components

Every maintenance supervisor knows that risk compounds. One small shift in a truck’s weight can ripple into major safety concerns. The BDHJ-35 cuts those risks off at the source.

Confidence for the Whole Team

One of the biggest benefits of the BDHJ-35 isn’t mechanical—it’s psychological. Crews feel more secure when the lifting system they rely on is engineered, certified, and built specifically for mining. That confidence translates into better focus, better decisions, and better results.

Technicians know they’re supported. Supervisors know the job is safer. Operations know the truck will return to production faster. Everyone wins.

Conclusion: A Better Way to Lift in Underground Mining

Safe lifting is more than a procedure—it’s the foundation of every maintenance job. With the BDHJ-35 Jacking System, mobile maintenance professionals gain the stability, reliability, and efficiency they need to tackle heavy underground haul truck service with confidence.

By taking the uncertainty out of the lift, the BDHJ-35 makes the entire repair process safer and smoother—from drives to suspensions to tire assemblies—so your team can focus on what they do best.

If you’re looking to elevate your maintenance operation (literally and figuratively), the BDHJ-35 is engineered for exactly that.