1-5. EQUIPMENT IMPROVEMENT REPORT
AND MAINTENANCE DIGEST (EIR MD)
The quarterly Equipment Improvement Report and Maintenance Digest,
TB 43-0001-39 series, contains valuable field information on the equipment
covered in this manual. The information in the TB 43-0001-39 series is compiled
from some of the Equipment Improvement Reports that you prepared on the
vehicles covered in this manual. Many of these articles result from comments,
suggestions, and improvement recommendations that you submitted to the
EIR program. The TB 43-0001-39 series contains information on equipment
improvements, minor alterations, proposed Modification Work Orders (MWOs),
warranties (if applicable), actions taken on some of your DA Form 2028s
(Recommended Changes to Publications), and advance information on proposed
changes that may affect this manual. The information will help you in doing
your job better and will help in keeping you advised of the latest changes to this
manual. Also refer to DA Pam 25-30, Consolidated Index of Army Publications
and Blank Forms, and appendix A, References, of this manual. (Marine Corps)
Submit QDRs in accordance with MCO 4855-10. For those with access to the
World Wide Web (WWW), the EIR MD can be viewed through the Army Electronic
Product Support. The site is http://aeps.ria.army.mil.
1-6. BREAK-IN SERVICE
Upon receipt of vehicle, or after engine replacement, break-in precautions must
be observed during the first 500 miles (805 kilometers) of operation. For break-in
procedure, refer to paragraph 2-9.
Section II. EQUIPMENT DESCRIPTION
1-7. EQUIPMENT CHARACTERISTICS, CAPABILITIES,
The 1-1/4 ton, 4x4, M998 series vehicles are tactical vehicles designed for use over
all types of roads, as well as cross-country terrain in all weather conditions. The
vehicles have four driving wheels powered by a V-8 liquid-cooled diesel engine.
Four-wheel hydraulic service brakes and a mechanical parking brake are common
to all models in the M998 series. All vehicles are equipped with a pintle hook for
towing. Tiedown and lifting eyes are provided for air, rail, or sea shipment.
1-8. METRIC SYSTEM
The equipment/system described herein contains metric components and
requires metric, common, and special tools; therefore, metric units in addition
to standard units will be used throughout this publication. In addition, a metric
conversion table is located on the inside back cover of this publication.