6-1. GENERAL MAINTENANCE INSTRUCTIONS.
This Task Covers:
b. Work Safety
c. Cleaning Instructions
d. Inspection Instructions
e. Repair Instructions
f. Tagging Wires and Hoses
g. Corrosion Protection
Tools and Special Tools:
Tool kit, general mechanic's (Item 4, Appendix B-3)
Brush, scrub (Item 48, Appendix F)
Cloth, abrasive (Item 1, Appendix F)
Rags, wiping (Item 10, Appendix F)
Solvent, cleaning (Item 11, Appendix F)
For service and repair tasks on the semitrailer, the ground
boards and tire chocks should be used to insure safe
coupling and prevent semitrailer movement.
These general maintenance instructions contain general shop practices and specific methods you must
be familiar with to properly maintain your semitrailer. You should read and understand these practices
and methods before performing any maintenance tasks.
Before beginning a task, find out how much repair, modification, or replacement is needed to fix the
equipment. Sometimes the reason for equipment failure can be seen right away, and complete teardown
is not necessary. Disassemble equipment only as far as necessary to repair or replace damaged or
Resources are not listed in the initial setup unless they apply to the procedure.
All tags and forms attached to equipment must be checked to learn the reason for equipment's removal
from service. Modification Work Orders (MW Os) and technical bulletins must also be checked for
equipment changes and updates.
In some cases, a part may be damaged by removal. If the part appears to be good, and other parts
behind it are not defective, leave it on and continue with the procedure. Here are a few simple rules:
Do not remove dowel pins or studs unless loose, bent, broken, or otherwise damaged.
Do not remove bearings or bushings unless damaged. If you need to remove them to access
parts behind, pull bearings and bushings out carefully.
Replace all gaskets, seals, lockwashers, cotter pins, preformed packings, and other locking
Insure all parts are lubricated as specified in Lubrication Order.