TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 10 of 1015
TM 9-2320-272-24-1
HOW TO USE THIS MANUAL (Contd)
NOTE
Before starting the maintenance task, look through the entire
procedure to familiarize yourself with it.
a. The entire procedure (4-5. FUEL PUMP SHUTOFF REPLACEMENT), according to the THIS
TASK COVERS header, includes: a. Removal and b. Installation.
b.
The nine basic subheadings listed under INITIAL SETUP outline the task preconditions,
materials, tools, manpower requirements, and general safety instructions. They are:
APPLICABLE MODELS: Any models that require that particular maintenance task.
TEST EQUIPMENT: Test
equipment needed to complete a task.
SPECIAL TOOLS : Those tools required to complete the task.
MATERIALS/PARTS: All parts or materials required to complete the task.
PERSONNEL REQUIRED: The number and type of personnel needed to accomplish a task.
NOTE
If you think you need more help to correctly or safely complete the
task (perhaps as a result of an unusual condition, etc.), alert your
supervisor and ask for help.
REFERENCES(TM): Those manuals required to complete the task.
EQUIPMENT CONDITIQN Notes the conditions that must exist before starting the task.
For (4-5. FUEL PUMP SHUTOFF REPLACEMENT), the hood must be raised and secured
(TM 9-2320-272-10), and the left splash shield removed (TM 9-2320-272-10).
SPECIAL ENVIROMENTAL CONDITIONS: Outlines specific environmental conditions
necessary to perform the task. For example: Darken an area when adjusting headlight
beams.
GENERAL SAFETY INSTRUCTIONS: Summarizes all safety warnings for the
maintenance task.
c.
A step-by-step maintenance procedure follows the INITIAL SETUP.
d.
At the end of the procedure, FOLLOW-ON TASK(S) will list those additional task(s) that must be
performed to complete the procedure. The follow-on tasks for 4-5. FUEL PUMP SHUTOFF
REPLACEMENT are: Start engine (TM 9-2320-272-10), check fuel pump shutoff valve for proper
operation (TM 9-2320-272-101, install left. splash shield (TM 9-2320-272-10), and lower and secure
hood (TM 9-2320-272-10X
10.
Refer to our example procedure, 4-5. FUEL PUMP SHUTOFF REPLACEMENT as we review the
following points:
a.
Modular Text: Both pages of text and illustrations are to be used together. This manual was
designed so that the two pages are visible at once, making part identification and procedure
sequence easy to follow.
b. Initial Setup: Outlines task conditions.
c.
Illustrations: An exploded view of the components removed from the vehicle shows part
locations, attachments, and spatial relationships.
11.
Refer to TM 9-2320-272-24P, Unit, Direct Support, and General Support Maintenance Repair Parts
and Special Tools List for Truck, 5-Ton, 6x6, M939, M939A1, M939A2 Series Trucks, when
requisitioning parts and special tools for Unit, Direct Support, and General Support maintenance,
12.
Your manual is easier to use once you understand its design. We hope it will encourage you to use it
more often.
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