SkyTrak 9038 Operating Weight and Tire Load Debate

[MikePhua]

SkyTrak’s Rise in the Telehandler Market
The SkyTrak 9038 telehandler was introduced in the mid-1980s during a period of rapid growth in the rough-terrain forklift segment. Manufactured by SkyTrak, a brand that would later become part of JLG Industries, the 9038 was designed to meet the needs of contractors working in uneven, off-road environments. With a rated lift capacity of 9,000 pounds and a maximum lift height of 38 feet, the 9038 quickly became a favorite among framing crews, masonry contractors, and utility companies.
SkyTrak’s reputation for simplicity, durability, and operator-friendly design helped it dominate the North American telehandler market. By the late 1980s, SkyTrak had sold thousands of units, and the 9038 was among its most popular models. Its straightforward mechanical systems and robust frame made it ideal for rental fleets and owner-operators alike.
Understanding Operating Weight and Tire Ratings
The operating weight of the SkyTrak 9038 is listed at approximately 23,100 pounds. This figure includes the base machine, standard ballast, fluids, and a 175-pound operator. However, it does not include the weight of any load carried on the forks. This distinction is critical when evaluating tire ratings and trailer transport capacity.
Key terminology:

• Operating Weight: The total weight of the machine in working condition, excluding payload.
  
• Gross Vehicle Weight (GVW): The combined weight of the machine and its maximum rated load.
  
• Ply Rating: A measure of tire strength; higher ply ratings indicate greater load capacity.
  
• Ballast: Material added to tires or chassis to improve stability, often calcium chloride or foam.
  

The original 9038 units were equipped with 10-ply tires, which typically have a lower load rating than modern 12-ply replacements. For example, a 12-ply 13.00x24 tire may be rated for approximately 5,900 pounds. Multiplied across four tires, this yields a total support capacity of 23,600 pounds—just above the machine’s operating weight.
Debating the Weight Figures
Operators and mechanics have long debated whether the published operating weight includes the lift capacity. Some argue that the machine’s weight must account for the 9,000-pound lift rating to prevent overloading the tires. Others maintain that the lift load is separate and temporary, and tire ratings are based on static machine weight.
A practical example: If the machine weighs 23,100 pounds and lifts 9,000 pounds, the total GVW could reach 32,100 pounds. However, this load is distributed across the chassis and not fully borne by the tires at all times. Moreover, the dynamic nature of lifting means the tires experience varying loads depending on boom extension, angle, and terrain.
Transport Considerations and Trailer Ratings
Transporting a SkyTrak 9038 requires careful attention to trailer specifications. A common 12-ton tag trailer has a gross vehicle weight rating (GVWR) of 24,000 pounds. However, this includes the trailer’s own weight, which may be around 6,600 pounds. That leaves only 17,400 pounds for cargo—well below the 9038’s operating weight.
Operators often discover this limitation the hard way. One contractor recalled hauling a 9038 on a 12-ton trailer, only to realize he was exceeding the legal weight limit. He later opted to hire a semi-truck for transport, a safer and more compliant solution.
Tire Selection and Ballast Options
Choosing the right tires for a telehandler is more than a matter of price. While budget-friendly Chinese tires may cost $375 each, premium American-made options like Titan tires can exceed $500, especially when mounted and filled with calcium chloride.
Considerations when selecting tires:

• Load Rating: Must meet or exceed the machine’s operating weight.
  
• UV Stability: Cheaper tires may degrade faster under sunlight.
  
• Ballast Type: Calcium chloride adds weight and stability but can corrode rims. Foam offers puncture resistance but adds unsprung weight.
  

One operator noted that his Chinese tires shed black residue when touched, suggesting poor UV resistance. He ultimately chose Titan tires for their durability and domestic manufacturing, citing long-term value and safety.
Engine Options and Performance
The SkyTrak 9038 was available with either a Ford (New Holland) turbocharged diesel engine or a John Deere 239 engine. While both were reliable, many operators preferred the Deere for its torque characteristics and parts availability. The Ford engine, however, was more common in later models and offered decent fuel efficiency.
In one case, a 1989 model was mistakenly believed to be from the early 1980s. After purchase, the new owner discovered it had a rebuilt Ford engine with approximately 2,000 hours on it—adding value to the deal.
Maintenance and Restoration Tips
Restoring a used telehandler like the 9038 involves more than just cosmetic fixes. Key areas to address include:

• Hydraulic Cylinders: Repack leaking boom cylinders promptly to avoid fluid loss and safety hazards.
  
• Fluids: Flush all systems, including hydraulic, transmission, and coolant.
  
• Electrical System: Replace batteries and inspect wiring for corrosion.
  
• Safety Features: Ensure backup alarms and mirrors are functional.
  

One operator delayed repacking a hoist cylinder, only to have the opposite side fail shortly after. This highlights the importance of addressing both sides of a system simultaneously.
Conclusion
The SkyTrak 9038 remains a workhorse in the telehandler world, with a legacy rooted in rugged design and practical engineering. Understanding its operating weight, tire requirements, and transport limitations is essential for safe and efficient use. Whether restoring an older unit or evaluating tire upgrades, operators benefit from a blend of technical knowledge and field experience. With proper care, the 9038 continues to serve as a reliable partner on job sites across North America.