TM-9-2520-272-34P
CROSS DRIVE TRANSMISSION WITH CONTAINER MODEL X200-4 & 4A
TECHNICAL MANUAL; INTERMEDIATE, DIRECT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
TM-9-2520-272-34P - Page 15 of 488
TM 9-2520-272-34&P
HOW TO USE THIS MANUAL (Continued)
GENERAL MAINTENANCE INSTRUCTIONS
Chapter 3, General Maintenance Instructions (GMI) provides general instructions which are
applicable to all areas of troubleshooting and transmission maintenance. A chapter index is
provided to guide you to specific maintenance instructions such as cleaning, inspecting and
mandatory replacement parts.
Maintenance instructions in the GMI are always used repeatedly throughout all of your work on
the transmission. Most of the instructions in the GMI are not repeated in Chapter 4,
Transmission Maintenance Procedures. It would be laborious for you to read through the
standard cleaning and inspection steps every time you removed something from the
transmission. For that reason, certain general procedures which are used over and over are
provided only once -- in the GMI These general procedures are just as much a part of
transmission maintenance procedures as the maintenance procedures provided in Chapter 4.
The difference is that procedures in Chapter 4 are provided for you where needed; you will have
to apply Chapter 3 procedures to Chapter 4 tasks from your memory.
When procedures provided in the GMI (such as cleaning or inspection) are not adequate for a
maintenance task, then specific instructions will be provided in the text of the Chapter 4
maintenance procedures.
For example, acceptability of a part that you have removed from the
transmission may depend upon certain dimensions obtained by measurement during inspection.
In such event, specific inspection instructions will be provided in Chapter 4 where used.
TRANSMISSION MAINTENANCE PROCEDURES
Maintenance procedures in Chapter 4 begin with removing the transmission from the container.
They proceed in logical sequence until the transmission has been completely disassembled,
repaired and assembled. Maintenance procedures are organized in the following order:
Disassembling the transmission into major assemblies (Section II).
Assembling the transmission from major assemblies (Section III).
Disassembling, repairing and assembling the major assemblies (Section IV).
The section index will guide you to the page for each procedural paragraph within that section.
Procedural paragraphs are numbered in sequence throughout Chapter 4. Each paragraph is
identified by a paragraph number and the name of a major maintenance procedure.
Procedural paragraphs are divided into tasks. The actual maintenance work is performed from
instructions at the task level. Tasks are named and numbered sequentially throughout the
paragraph and they are arranged in logical disassembly, repair or assembly order.
A paragraph index is located on the first page of each procedural paragraph. The index provides
the number and name of each task within the paragraph and the page where the task begins.
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