Reviving the Case W24B Wheel Loader in Modern Operations

[MikePhua]

The Case W24B and Its Place in Loader History
The Case W24B wheel loader was introduced during the late 1970s and remained in production through the early 1980s, representing a transitional phase in loader design. Built by Case Corporation, which had already established itself as a leader in agricultural and construction machinery since 1842, the W24B was part of a broader push to modernize mid-size loaders with improved hydraulics, operator comfort, and drivetrain reliability.
With an operating weight of approximately 23,000 lbs and a bucket capacity ranging from 2.5 to 3.5 cubic yards, the W24B was designed for versatility—handling everything from aggregate loading and snow removal to site cleanup and stockpile management. Its popularity extended across North America, with thousands sold to municipalities, contractors, and industrial yards.
Powertrain and Hydraulic Architecture
The W24B was typically powered by a Cummins 6BT or Detroit Diesel 4-53 engine, depending on the production year and regional spec. These engines delivered between 110 to 130 horsepower, paired with a Clark powershift transmission offering three forward and reverse speeds.
Key drivetrain features included:

• Torque converter for smooth acceleration under load
  
• Planetary axles with limited-slip differentials
  
• Air-over-hydraulic braking system with drum brakes
  
• Articulated frame for tight turning radius
  

The hydraulic system used a gear-type pump with open-center valves, providing responsive control for lift, tilt, and auxiliary functions. Flow rates averaged 35–40 gallons per minute, with relief pressures set around 2,500 psi.
Common Issues and Field Repairs
As with any machine of its era, the W24B has its quirks. Operators and mechanics frequently encounter:

• Sluggish lift or tilt due to worn pump or contaminated fluid
  
• Transmission hesitation from sticky valve bodies or low clutch pressure
  
• Brake fade caused by air leaks or worn shoes
  
• Electrical faults in the starter circuit or lighting harness
  
• Steering drift from worn pivot pins or low hydraulic pressure
  

Solutions include:

• Replacing hydraulic filters and flushing the system every 1,000 hours
  
• Installing inline pressure gauges to monitor clutch pack engagement
  
• Retrofitting LED lights and marine-grade wiring for reliability
  
• Rebuilding brake actuators and adjusting linkage
  
• Greasing articulation joints monthly and inspecting for play
  

In one case from Manitoba, a W24B used for snow clearing began losing lift power mid-season. After testing pump output and inspecting the control valve, the crew discovered a collapsed suction hose restricting flow. Replacing the hose restored full function, and the loader finished the season without further issues.
Operator Experience and Cab Ergonomics
The W24B’s cab was basic by today’s standards but functional. It featured:

• Mechanical suspension seat
  
• Analog gauges for oil pressure, coolant temp, and transmission status
  
• Hand levers for lift and tilt, with optional joystick retrofit
  
• Heater and defroster for cold climates
  

Visibility was good thanks to the sloped hood and wide glass panels. Noise levels were moderate, though many owners added insulation or aftermarket mufflers to reduce cabin fatigue.
Some operators modified their cabs with:

• Bluetooth radios and USB charging ports
  
• Upgraded seats with lumbar support
  
• Rearview cameras for improved safety
  
• Fire extinguishers and first aid kits for compliance
  

Parts Availability and Restoration Potential
Despite its age, the W24B remains serviceable thanks to:

• Shared components with other Case and Clark models
  
• Aftermarket support for filters, seals, and electrical parts
  
• Salvage yards offering used axles, cylinders, and frames
  
• Rebuild kits for transmissions and torque converters
  

Restoration projects often begin with:

• Sandblasting and repainting the frame
  
• Replacing all fluids and filters
  
• Rebuilding hydraulic cylinders and resealing valves
  
• Installing new tires or foam-filled options for industrial use
  

In Ohio, a retired operator restored a W24B for use on his farm. After a full drivetrain overhaul and cab refresh, the machine was used to load gravel, clear brush, and even tow hay wagons. It became a local attraction at tractor shows, where its rugged design and mechanical simplicity drew admiration.
Conclusion
The Case W24B wheel loader may be decades old, but its core design remains relevant. With proper maintenance, thoughtful upgrades, and a bit of mechanical creativity, these machines continue to serve in yards, farms, and job sites across the continent. Whether as a workhorse or a restoration project, the W24B stands as a testament to durable engineering and the enduring value of classic iron.