GENERAL REPAIR AND CLEANING METHODS
Construction Equipment Repairer, 91L
Cleaning Compound, Solvent
Dishwashing Compound, Hand
FIELD MAINTENANCE PROCEDURES
These general maintenance instructions contain general shop practices and specific methods you must be
familiar with to properly maintain your M9 ACE. 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
as described in this manual. 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
The following "Initial Setup" information applies to all procedures:
Resources are not listed unless they apply to the procedure.
All tags and forms attached to equipment must be checked to learn the reason for removal from service.
Modification Work Orders (MWOs) and Technical Bulletins (TBs) must also be checked for equipment changes
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
them, pull bearings and bushings out carefully.
Replace all gaskets, seals, and preformed packings.