Case Construction and the Evolution of Loader Backhoes
Case Construction Equipment, a division of CNH Industrial, has been a cornerstone in the development of loader backhoes since launching the industry’s first factory-integrated model in 1957. Over the decades, Case has refined its loader-backhoe lineup, introducing models like the 570MXT and 590 Super M, both of which have become staples in municipal, agricultural, and construction fleets across North America.
The 570MXT is a tractor loader designed for utility work, while the 590 Super M is a full-size loader backhoe with enhanced digging and lifting capabilities. Despite their different roles, these machines share a surprising amount of component compatibility, particularly in the loader assembly.
Loader Frame and Bucket Mounting System
Both the Case 570MXT and 590 Super M utilize a similar loader frame architecture. This includes standardized loader arms, pin spacing, and hydraulic quick-attach systems. The loader bucket mounts via a dual-pin setup, which allows for straightforward interchangeability between compatible models.
The 570MXT typically comes with an 82-inch general-purpose (GP) bucket, while the 590 Super M is often equipped with a 93-inch 4-in-1 multipurpose bucket. The 4-in-1 design allows the operator to use the bucket as a dozer blade, clam shell, scraper, or standard loader, making it highly versatile for grading, grabbing, and backfilling.
Hydraulic Compatibility and Control Considerations
The 570MXT is often pre-wired and pre-plumbed for auxiliary hydraulics, even if the 4-in-1 bucket is not installed from the factory. In many cases, the hydraulic lines are capped at the loader arms, awaiting connection to a multipurpose bucket. This foresight in design allows for easy retrofitting of a 4-in-1 bucket from a 590 Super M, assuming the hydraulic couplers and flow rates are compatible.
Operators should verify:
In practice, many operators have successfully swapped buckets between these two models without modification. The key lies in the shared loader frame geometry and pin dimensions. The increased width of the 590SM’s 93-inch bucket may slightly affect maneuverability on narrow job sites, but it also offers increased capacity and productivity for bulk material handling.
For example, a contractor in California upgraded his 570MXT with a used 4-in-1 bucket from a retired 590SM. After connecting the hydraulic lines and verifying pin alignment, the bucket functioned flawlessly, providing enhanced versatility for grading and debris handling.
Recommendations for Bucket Swaps
Before committing to a bucket swap:
The Case 570MXT and 590 Super M share a loader frame design that allows for direct bucket interchangeability, including the installation of a 4-in-1 bucket. With minimal adjustments and proper hydraulic setup, operators can significantly expand the functionality of their 570MXT by leveraging components from the 590SM. This kind of cross-compatibility reflects Case’s commitment to modular design and long-term equipment value, making it easier for owners to adapt their machines to evolving job site demands.
Case Construction Equipment, a division of CNH Industrial, has been a cornerstone in the development of loader backhoes since launching the industry’s first factory-integrated model in 1957. Over the decades, Case has refined its loader-backhoe lineup, introducing models like the 570MXT and 590 Super M, both of which have become staples in municipal, agricultural, and construction fleets across North America.
The 570MXT is a tractor loader designed for utility work, while the 590 Super M is a full-size loader backhoe with enhanced digging and lifting capabilities. Despite their different roles, these machines share a surprising amount of component compatibility, particularly in the loader assembly.
Loader Frame and Bucket Mounting System
Both the Case 570MXT and 590 Super M utilize a similar loader frame architecture. This includes standardized loader arms, pin spacing, and hydraulic quick-attach systems. The loader bucket mounts via a dual-pin setup, which allows for straightforward interchangeability between compatible models.
The 570MXT typically comes with an 82-inch general-purpose (GP) bucket, while the 590 Super M is often equipped with a 93-inch 4-in-1 multipurpose bucket. The 4-in-1 design allows the operator to use the bucket as a dozer blade, clam shell, scraper, or standard loader, making it highly versatile for grading, grabbing, and backfilling.
Hydraulic Compatibility and Control Considerations
The 570MXT is often pre-wired and pre-plumbed for auxiliary hydraulics, even if the 4-in-1 bucket is not installed from the factory. In many cases, the hydraulic lines are capped at the loader arms, awaiting connection to a multipurpose bucket. This foresight in design allows for easy retrofitting of a 4-in-1 bucket from a 590 Super M, assuming the hydraulic couplers and flow rates are compatible.
Operators should verify:
- Hydraulic flow and pressure ratings match the requirements of the 4-in-1 bucket
- Control levers or joystick functions are configured to operate the bucket’s clamshell function
- Quick couplers are clean, undamaged, and compatible in size and thread
In practice, many operators have successfully swapped buckets between these two models without modification. The key lies in the shared loader frame geometry and pin dimensions. The increased width of the 590SM’s 93-inch bucket may slightly affect maneuverability on narrow job sites, but it also offers increased capacity and productivity for bulk material handling.
For example, a contractor in California upgraded his 570MXT with a used 4-in-1 bucket from a retired 590SM. After connecting the hydraulic lines and verifying pin alignment, the bucket functioned flawlessly, providing enhanced versatility for grading and debris handling.
Recommendations for Bucket Swaps
Before committing to a bucket swap:
- Measure pin diameter and spacing on both machines
- Inspect bushings and pins for wear or elongation
- Check loader arm width and cylinder stroke compatibility
- Test hydraulic actuation of the 4-in-1 function before field use
- Consider reinforcing the loader arms if using a heavier bucket long-term
The Case 570MXT and 590 Super M share a loader frame design that allows for direct bucket interchangeability, including the installation of a 4-in-1 bucket. With minimal adjustments and proper hydraulic setup, operators can significantly expand the functionality of their 570MXT by leveraging components from the 590SM. This kind of cross-compatibility reflects Case’s commitment to modular design and long-term equipment value, making it easier for owners to adapt their machines to evolving job site demands.
