12
Precautions
Disassemble
It is assumed in the detailed assembly instructions that the lubricant has
been drained from the transmission, the necessary linkage, cooler lines,
and air lines disconnected, and the transmission has been removed from
vehicle chassis. Removal of the gear shift cable and electrical harness is
included in the detailed instructions; however, they MUST be detached
from the transmission before they can be removed from the chassis. For
in shop disassembly, holding the transmission in the vertical position can
be done securely by fastening a compatible companion flange to a large
base, forming a holder for the output shaft splines. Use extreme caution
when handling heavy equipment.
Follow closely each procedure in the detailed instructions, make use of
the text, illustrations, and photographs provided.
The electronic control unit (ECU is a non-serviceable
component. Follow the instructions in the "External Parts"
section, careful to remove and protect the unit from damage.
Assemblies
When disassembling the various assemblies, such as the reverse
idler, countershafts, and auxiliary section, lay all parts on a clean
bench in the same sequence as removed. This procedure will
simplify assembly and reduce the possibility of losing parts.
Bearings
Carefully wash and lubricate all usable bearings as removed and
protectively wrap until ready for use. Remove bearings planned to
be reused with pullers designed for this purpose.
Cleanliness
Provide a clean place to work. It is important that no dirt or foreign
material enters the unit during repairs. Dirt is an abrasive and can
damage bearings. It is always good practice to clean the outside of
the unit before starting the planned disassembly.
Snap Rings
Remove snap rings with pliers designed for this purpose. Snap
rings removed in this manner can be reused, if they are not sprung
or loose.
When Using Tools to Move Parts
Always apply force to shafts, housings, etc., with restraint.
Movement of some parts is restricted. Never apply force to driven
parts after they stop solidly. The use of soft hammers, soft bars,
and mauls for all disassembly work is recommended.
