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The Case 1155E and Its Industrial Footprint
The Case 1155E crawler loader, introduced in the late 1980s, was part of Case Corporation’s push to modernize its track loader lineup. Case, founded in 1842 and known for its agricultural and construction machinery, designed the 1155E to serve mid-range earthmoving operations. With an operating weight of roughly 16,000 kg and powered by a 5.9L Cummins diesel engine, the 1155E offered a balance of power, maneuverability, and hydraulic versatility. It featured a 4-in-1 bucket and optional rear rippers, making it suitable for grading, trenching, and demolition.
Though production numbers were modest compared to Case’s wheeled backhoes, the 1155E earned a loyal following in North America, especially in municipal fleets and forestry operations. Its mechanical simplicity and robust frame allowed it to remain in service well beyond its expected lifecycle.
Master Link Failure and Chain Specificity
A common issue with aging crawler loaders is undercarriage wear, particularly in the track chains and master links. In one instance, the right-hand master link on a 1989 Case 1155E failed, prompting a search for replacements. Unlike more standardized chains used in Caterpillar or Komatsu machines, the 1155E’s track chain was proprietary—manufactured specifically for Case by ITM (Italian Track Machines).
The master link in question was not the typical “alligator” or tooth-style connector but a wave-patterned link, complicating sourcing. The pitch of the chain was 6.687 inches, a dimension not commonly shared with other crawler loaders or dozers. This specificity limited interchangeability and increased reliance on OEM parts.
Aftermarket Alternatives and Sourcing Challenges
Several aftermarket suppliers were contacted, including Berco, Trek, and Schaeffer Equipment. While Berco offered part numbers CA686 and CA687 for master links and CA688 for bushings, inventory shortages and long lead times—up to 120 days—made these options impractical.
Eventually, a Berco representative from Washington suggested a workaround: replacing the broken master link with a standard link and new pins. This solution, though unconventional, allowed the machine to return to service quickly. The cost was approximately $125, significantly lower than the $850+ quoted for OEM master link halves.
Additional sourcing efforts revealed that ITM, while the original manufacturer, had difficulty cross-referencing Case’s internal part numbers. After multiple calls, ITM provided updated book numbers—199944A1 and 199945A1—but even these were met with confusion at Case dealerships.
Terminology Clarification
In addition to the chain issue, the right-hand final drive had suffered bearing failure, leading to galling on the axle end. OEM replacement axles were priced between $950 and $1,200, with bearings and spacers adding another $800. Instead of purchasing new components, the owner sourced surplus bearings from Talon Bearing in Pennsylvania. By machining the axle to fit a slightly smaller bearing ID (from 3.25" to 3.00"), the total repair cost was reduced to under $400.
This kind of ingenuity reflects a broader trend among equipment owners: adapting and modifying rather than replacing. In rural New Mexico, where parts availability is limited and freight costs high, such solutions are often the only viable path forward.
Exploring Chain Conversion Options
Given the proprietary nature of the 1155E’s chain, the possibility of converting to a more common chain group—such as the L40 series—was considered. This would involve replacing the sprockets to match the new pitch, but potentially allow use of widely available chains and master links.
Advantages of conversion include:
Recommendations for Owners of Legacy Crawlers
The Case 1155E remains a capable machine despite its age, but its proprietary undercarriage presents challenges for long-term maintenance. Through a combination of aftermarket sourcing, creative machining, and potential chain conversion, owners can extend the life of these loaders without relying solely on OEM channels. In an era where sustainability and cost control matter more than ever, reviving legacy equipment is not just practical—it’s a testament to mechanical resilience and operator ingenuity.
The Case 1155E crawler loader, introduced in the late 1980s, was part of Case Corporation’s push to modernize its track loader lineup. Case, founded in 1842 and known for its agricultural and construction machinery, designed the 1155E to serve mid-range earthmoving operations. With an operating weight of roughly 16,000 kg and powered by a 5.9L Cummins diesel engine, the 1155E offered a balance of power, maneuverability, and hydraulic versatility. It featured a 4-in-1 bucket and optional rear rippers, making it suitable for grading, trenching, and demolition.
Though production numbers were modest compared to Case’s wheeled backhoes, the 1155E earned a loyal following in North America, especially in municipal fleets and forestry operations. Its mechanical simplicity and robust frame allowed it to remain in service well beyond its expected lifecycle.
Master Link Failure and Chain Specificity
A common issue with aging crawler loaders is undercarriage wear, particularly in the track chains and master links. In one instance, the right-hand master link on a 1989 Case 1155E failed, prompting a search for replacements. Unlike more standardized chains used in Caterpillar or Komatsu machines, the 1155E’s track chain was proprietary—manufactured specifically for Case by ITM (Italian Track Machines).
The master link in question was not the typical “alligator” or tooth-style connector but a wave-patterned link, complicating sourcing. The pitch of the chain was 6.687 inches, a dimension not commonly shared with other crawler loaders or dozers. This specificity limited interchangeability and increased reliance on OEM parts.
Aftermarket Alternatives and Sourcing Challenges
Several aftermarket suppliers were contacted, including Berco, Trek, and Schaeffer Equipment. While Berco offered part numbers CA686 and CA687 for master links and CA688 for bushings, inventory shortages and long lead times—up to 120 days—made these options impractical.
Eventually, a Berco representative from Washington suggested a workaround: replacing the broken master link with a standard link and new pins. This solution, though unconventional, allowed the machine to return to service quickly. The cost was approximately $125, significantly lower than the $850+ quoted for OEM master link halves.
Additional sourcing efforts revealed that ITM, while the original manufacturer, had difficulty cross-referencing Case’s internal part numbers. After multiple calls, ITM provided updated book numbers—199944A1 and 199945A1—but even these were met with confusion at Case dealerships.
Terminology Clarification
- Master Link: A removable section of the track chain that allows for assembly or disassembly without breaking the entire chain.
- Track Pitch: The distance between the centers of two adjacent track pins; critical for matching sprockets and rollers.
- SALT Chain: Sealed and Lubricated Track; designed to reduce internal wear and extend service life.
- Final Drive: The gear assembly that transmits power from the transmission to the tracks.
In addition to the chain issue, the right-hand final drive had suffered bearing failure, leading to galling on the axle end. OEM replacement axles were priced between $950 and $1,200, with bearings and spacers adding another $800. Instead of purchasing new components, the owner sourced surplus bearings from Talon Bearing in Pennsylvania. By machining the axle to fit a slightly smaller bearing ID (from 3.25" to 3.00"), the total repair cost was reduced to under $400.
This kind of ingenuity reflects a broader trend among equipment owners: adapting and modifying rather than replacing. In rural New Mexico, where parts availability is limited and freight costs high, such solutions are often the only viable path forward.
Exploring Chain Conversion Options
Given the proprietary nature of the 1155E’s chain, the possibility of converting to a more common chain group—such as the L40 series—was considered. This would involve replacing the sprockets to match the new pitch, but potentially allow use of widely available chains and master links.
Advantages of conversion include:
- Easier sourcing of replacement parts
- Lower long-term maintenance costs
- Greater compatibility with aftermarket suppliers
Recommendations for Owners of Legacy Crawlers
- Document all part numbers and measurements before sourcing replacements
- Consider aftermarket suppliers with regional distribution to reduce lead times
- Evaluate the feasibility of chain group conversion based on sprocket compatibility
- Use surplus bearing suppliers and local machine shops to reduce repair costs
- Maintain a parts log and build relationships with undercarriage specialists
The Case 1155E remains a capable machine despite its age, but its proprietary undercarriage presents challenges for long-term maintenance. Through a combination of aftermarket sourcing, creative machining, and potential chain conversion, owners can extend the life of these loaders without relying solely on OEM channels. In an era where sustainability and cost control matter more than ever, reviving legacy equipment is not just practical—it’s a testament to mechanical resilience and operator ingenuity.
