TB-9-2350-277-40-P-1
CARRIER, MORTAR, 120-MM M121, SELF-PROPELLED M1064A3
TECHNICAL BULLETIN; INSTALLATION OF CREW II MODIFICATION KIT PART 1 OF 4
JUNE 2009
TB-9-2350-277-40-P-1 - Page 11 of 100
TB 9-2350-277-40&P-1
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HOW TO USE THIS MANUAL (CONT)
Before you start a procedure, get all the tools, supplies, and personnel you need to do the procedure.
These items will be listed in the INITIAL SETUP of the WP.
Start with Step 1 and do each step in the order given.
Numbered primary steps tell you WHAT to do.
Alpha substeps tell you HOW to do it.
Look at the illustrations.
Locators show you where the parts are located.
Close-up illustrations show the
details you need to do the procedure.
The words END OF WORK PACKAGE will tell you when you have finished the procedure.
DEFINITION OF WP TERMS
WARNINGs, CAUTIONs, and NOTEs
Pay attention to all WARNINGs and CAUTIONs within the WP.
Ignoring a WARNING could cause death
or injury to yourself or other personnel.
Ignoring a CAUTION could cause damage to equipment.
NOTEs
contain facts to make the procedure easier.
WARNINGs, CAUTIONs, and NOTEs always appear just
above the step to which they apply.
WARNING
Highlights an essential operating or maintenance procedure,
practice, condition, statement, etc., which, if not strictly observed,
could result in injury to, long term health hazards for, or death of,
personnel.
CAUTION
Highlights an essential operating or maintenance procedure,
practice, condition, statement, etc., which, if not stricty observed,
could result in damage to or destruction of equipment, or loss of
mission effectiveness.
NOTE
Highlights an essential operating or maintenance procedure,
condition, or statement.
Helper
Helpers are needed in procedures that require more than one person.
A helper may be needed to help
lift objects or act as an outside observer.
If a helper is needed to perform a procedure, the INITIAL SETUP will list “Helper (H)” under the
PERSONNEL REQUIRED heading.
If a helper assists with a step, the step will include:
“Have helper assist.”
If a helper performs the action alone, the step will start with “(H):.”
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