Description
TM 9-2300-216-35P/2 Technical Manual – 175mm M107/T235E1 and 8-Inch M110/T236E1 Elevating and Traversing Systems – July 1962
Item Overview
TM 9-2300-216-35P/2 is a U.S. Army field and depot maintenance repair parts and special tools list dated July 1962. It covers the elevating and traversing systems of the 175mm M107 self-propelled field artillery gun and the 8-inch M110 self-propelled howitzer. The title also identifies their earlier T235E1 and T236E1 designations. Collectors can pair this specialized parts volume with the matching maintenance manual to build a technical reference set focused on the equipment that positions these heavy cannons.
Publication Details
The publication number, date, equipment names, and Federal Stock Numbers identify this edition within the M107 and M110 manual series. The listed stock numbers belong to the complete artillery vehicles covered by the publication.
- Publication: TM 9-2300-216-35P/2
- Publication date: July 1962
- Publisher: Department of the Army
- Publication type: Field and depot maintenance repair parts and special tools list
- System coverage: Elevating and traversing systems
- 175mm application: M107 / T235E1 self-propelled field artillery gun
- FSN 2350-436-6635
- 8-inch application: M110 / T236E1 self-propelled howitzer
- FSN 2350-439-6243
Function and Contents
This volume serves as a repair-parts and tool reference for the mechanisms that move the cannon in elevation and traverse. Elevation raises or lowers the barrel, while traverse turns the weapon from side to side. Its purpose is to help maintenance and supply personnel identify replacement components and the special tools associated with work on these systems. The catalog supports the parts side of field and depot repair, while the companion TM 9-2300-216-35/2 supplies maintenance instructions. Together, these references connect the hardware needed for a repair with the technical work involved.
Publication History
The Army published this volume during the early service period of the M107 and M110 family. Its technical library divided repair-parts coverage into focused volumes, including TM 9-2300-216-35P/1 for the hull and related components and this -35P/2 volume for elevating and traversing systems. That arrangement gave repair organizations references tied to specific groups of equipment.
Documented Applications
The documented applications are the early M107 and M110 vehicles named in the publication. T235E1 and T236E1 were their development designations, which remained useful when matching early equipment records and technical references to the later service names. The volume’s assigned maintenance level places it with the references used by field repair units and depot shops. Its focused coverage is useful for researching cannon-positioning equipment separately from the hull, engine, running gear, and gun tube. Matching the model and edition date helps place parts information within the correct vehicle configuration.
Equipment History
The M107 and M110 entered U.S. service in the early 1960s on a common tracked chassis. A diesel engine allowed each vehicle to move under its own power, while an open rear platform carried the cannon and its working crew. A large rear spade helped steady the vehicle during firing. The shared vehicle design supported two heavy artillery roles with related equipment and support needs. The mounts, controls, and drive mechanisms formed an important part of that design because crews needed to position a large cannon accurately after reaching a firing site.
Weapon-System Background
The M107’s long 175mm gun could reach nearly 33 kilometers, or about 20 miles. The original M110’s 8-inch howitzer reached nearly 17 kilometers, or about 10.5 miles, and was valued for its accuracy and heavy shells. These different strengths gave commanders a choice between greater reach and heavier projectiles. Both weapons supported missions beyond the normal work of lighter artillery. Their common carriage also allowed units to change the mix of gun and howitzer tubes to suit military needs, a flexibility recorded in the Army’s history of artillery in Vietnam.
History of Use
M107 guns and M110 howitzers served in Vietnam with U.S. heavy artillery units, supporting troops from established firing positions. The 8-inch howitzer served with many division artillery units, while both types operated with field force artillery. Marine Corps photographs also document the 1st 175mm Gun Battery supporting the 1st Marine Division in 1969. This exact July 1962 parts publication is also listed in the Dutch Technical Troops Library catalog among its M107 and M110 references. Its presence there documents the volume’s place in later military equipment reference collections.
Ideal For
This parts manual is useful for a collection focused on early self-propelled artillery, Army maintenance publications, or the technical support behind Cold War equipment. It is well suited to:
- Collectors assembling M107 and M110 technical manual sets
- Researchers studying elevating and traversing system components
- Military vehicle historians comparing development and service designations
- Museums documenting heavy artillery maintenance and supply
- Restoration researchers identifying period parts and tool references
Approx length 8", Approx width 10", Approx height .25", Approx weight .5lbs.
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