Technical Manual C3 (TM 5-2420-200-15) Caterpillar Model 830M Tractor
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Technical Manual C3 (TM 5-2420-200-15) Caterpillar Model 830M
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This Technical Manual Change 3 for TM 5-2420-200-15 covers the Caterpillar Model 830M Tractor, identified under FSN 2420-806-0031, and is dated February 1968. This change was issued for the original manual dated September 5, 1963, making it an important companion document for collectors, researchers, restorers, and anyone building a serious reference library around U.S. Army engineer equipment and Cold War technical literature.
Unlike a full base manual, this item is an official Change 3 publication. That means it was issued to revise and update the original manual rather than replace it outright. For collectors, that matters. Army manuals were routinely kept current through numbered changes, and surviving change issues help document how technical guidance, maintenance information, and service procedures evolved while the equipment remained in use. In that sense, this is not just a supplemental insert. It is part of the actual service history of the manual.
The Caterpillar Model 830M Tractor
The Caterpillar Model 830M Tractor belongs to the broader family of military engineer, construction, and heavy support equipment. As identified by its nomenclature, it is a tractor, placing it squarely in the support side of Army operations rather than in the category of conventional weapons or combat vehicles.
Equipment in this class was associated with demanding field work where durability, traction, and dependable service were essential. In military use, machinery like this supported engineer units, construction operations, base development, route work, and general field-support tasks that helped keep larger operations moving.
For collectors, that makes this manual change especially interesting because it documents the technical side of Cold War military heavy equipment rather than more commonly seen combat hardware. It is also a strong crossover piece for anyone interested in Caterpillar industrial history as well as U.S. Army engineer equipment. The inclusion of FSN 2420-806-0031 adds cataloging value for collectors who prefer manuals with a specific government stock-number reference rather than only general nomenclature.
What This Manual Change Covers
Because this publication is a change to TM 5-2420-200-15, it belongs to the maintenance and service side of Army documentation. In practical terms, a manual change like this is especially relevant for updated information related to:
- equipment identification and nomenclature
- maintenance and servicing reference
- inspection and adjustment guidance
- corrections or revisions to the original manual
- archival and restoration research
- collecting complete service-era manual sets
Since this is Change 3 for the September 5, 1963 issue, it is especially useful to collectors who want to pair it with the original base manual and preserve the manual as it was actually updated and used in service.
Historical Significance
The date February 1968 places this publication in the Cold War period, when the U.S. military maintained extensive technical literature covering not only weapons and vehicles, but also the engineer and construction equipment required to build, maintain, and support military operations. Manuals and change sheets like this reflect a period when Army documentation extended into every part of the logistical chain, including tractors, maintenance equipment, and field-support systems.
For collectors and historians, this manual change is especially relevant to subjects such as:
- Cold War U.S. Army technical manuals
- military construction and engineer equipment
- heavy tractor and support machinery
- Caterpillar military support equipment
- dated military paperwork and manual changes
Because it covers a specialized tractor rather than a more common tactical vehicle or weapon system, it also adds variety to collections that already include standard ordnance or maintenance manuals.
About This Item
This listing is for Technical Manual Change 3 for TM 5-2420-200-15 covering the Caterpillar Model 830M Tractor, identified under FSN 2420-806-0031 and dated February 1968. It was issued for the September 5, 1963 printing of the original technical manual.
It is especially well suited for:
- U.S. Army technical manual collections
- Cold War engineer and heavy-equipment displays
- Caterpillar and tractor collections
- museum exhibits on military construction and support systems
- archive and research libraries focused on U.S. military technical publications
Because manuals were working documents, surviving examples are valued not only for their content, but also for their connection to real military maintenance and support practice.
Why This Manual Matters
Many military manuals focus only on base editions, but change sheets are a major part of how Army documentation was actually maintained in service. This item adds a layer of authenticity and completeness that a base manual alone does not always provide.
For collectors, it is a useful companion piece to the original TM 5-2420-200-15. For researchers, it helps document the continued maintenance and service history of the Caterpillar Model 830M Tractor. For museums, it adds context to the administrative and technical side of military engineer equipment that is often overlooked in favor of more visible hardware.
Ideal For
This manual is a strong fit for:
- U.S. Army technical manual collections
- Cold War engineer and support-equipment displays
- Caterpillar and construction-equipment collections
- museum and archival reference libraries
- collectors of military paperwork and dated technical publications
Approx length 11", Approx width 8", Approx height 1", Approx weight 2lbs.
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