TM 9-2610-200-14
2-79
CHAPTER 2. CARE, MAINTENANCE, AND INSPECTION (Con't)
SECTION VII.
GENERAL SUPPORT MAINTENANCE
Paragraph Page
Number
Paragraph Title
Number
2-38. GENERAL.......................................................................................................................... 2-79
2-39. TIRE REPAIR AND REPAIR LIMITS. ......................................................................... 2-79
2-40. TIRE REPAIR PROCEDURES, SELF-VULCANIZING SPOT REPAIR.................. 2-85
2-41. TIRE REPAIR PROCEDURES -SPOT REPAIR USING SPOTTER PRESS
FOR HEAT AND PRESSURE......................................................................................... 2-87
2-42. TIRE REPAIR PROCEDURES, SECTION REPAIR WITH PREVULCANIZED
PLUG AND PATCH UNIT TWO INCHES AND UNDER............................................ 2-88
2-43. PRELIMINARY INSPECTION & CONDITION CLASSIFICATION OF TIRES. .. 2-92
2-44. TIRE INSPECTION CRITERIA. ........................................................................... 2-96
2-45. INSPECTION OF REPAIRED OR RETREADED TIRES............................. 2-102
2-38. GENERAL.
a. This section provides instructions for General Support maintenance units responsible for repairing
tires. The type of repair depends on the extent, location, and type of damage.
b. The normal standard equipment condition to start a tire repair procedure is with the tire removed
from the rim or wheel assembly. Equipment conditions will not be listed unless some other condition
exists.
c. Personnel are listed only if a task requires more that one technician. A repair on a very large tire,
however, may require more than one technician to move and position the tire.
d. All items required to perform a spot repair or sectional repair on a damaged tire of any size are
available in chemically vulcanizing repair materials. Tire section units, also referred to as tire patches,
range in size from 3 inches (7.6 cm) in width containing two plies of reinforced cord to 30 inches (76.2
cm) in width containing 20 plies. One-piece sections and vulcanized plug units are available for injuries
from1/4 inch (6.4 mm) to 2 inches (5.1 cm) in diameter. Rubber with the properties equivalent to those
of better grades of tread stock is packaged in two parts, marked A and B. This rubber is used for making
spot repairs, building plugs for sectional repairs, and repairing tubeless tire liners. Vulcanizing fluid is
packaged in half-pints, quarts, and gallons. This vulcanizing fluid cures at room temperature, 70°F
(21°C) or higher. All chemical agents should be stored in closed containers when not in use, opened only
for immediate use, and closed again after use.
e. Chemically vulcanizing tire repair materials are manufactured so that the repairs require a
minimum of time, effort, and equipment. The process involves the cure of a layer of vulcanized rubber.
The layer of rubber capable of being vulcanized with the respective chemical fluid is usually referred to
as the chemical cushion. The chemical fluid that contains the vulcanizing agent, or accelerator, capable
of vulcanizing the chemical cushion is referred to as the vulcanizing fluid. The layer of chemical cushion
is always an intricate part of the repair. At the time of application the chemical cushion layer comes into
contact with the vulcanizing agent and self-vulcanization, or chemical vulcanization, occurs.
2-39. TIRE REPAIR AND REPAIR LIMITS
a. GENERAL
This section provides information on the different types of repairs repair limitations for each type. The tire
inspector and repairperson need to be familiar with the types of repairs and limits set forth in this section.
