TM 9-3950-253-13&P
OPERATOR MAINTENANCE
GENERAL INFORMATION
SCOPE
Type of Technical Manual (TM).
1.
This TM provides instructions on how to operate the Enhanced Container Handling Unit (E-CHU).
2.
Also included are Operator and Field Maintenance instructions, including removal/disassembly,
adjustments, troubleshooting, and periodic inspections and lubrication services to keep the E-CHU
serviceable.
3.
An illustrated Repair Parts and Special Tools List (RPSTL) for all components of the E-CHU is included in
this TM (WP 0094) through (WP 0115).
Equipment Name. Enhanced Container Handling Unit (E-CHU), NSN: 3950-20-003-8784. Earlier versions of
ECHU were fielded under NSN: 3950-20-003-8785. Equipment is identical under both NSNs. Effective with the
release of this TM, NSN: 3950-20-003-8784 is the NSN of record.
Purpose of Equipment. The E-CHU is a kit, designed to be bolted onto the PLS M1075 and M1075A1 truck or
HEMTT LHS M1120, M1120A2, and M1120A4, which allows the truck to load, transport, and unload 20 ft long
ISO containers directly onto the truck.
HEMTT M1120 and M1120A2 are similar for E-CHU operation and maintenance purposes.
MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed by PAM
750-8, The Army Maintenance Management System (TAMMS) Users Manual.
REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR)
If your E-CHU needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us
what you do not like about your equipment. Let us know why you do not like the design or performance.
All non-Aviation/Missile EIRs and PQDRs must be submitted through the Product Data Reporting and Evaluation
Program (PDREP) Web site. The PDREP site is: https://www.pdrep.csd.disa.mil/.
If you do not have Internet access, you may submit your information using an SF 368 (Product Quality Deficiency
Report). You can send your SF 368 using email, regular mail, or fax using the addresses/fax numbers specified in
DA PAM 750-8, The Army Maintenance Management System (TAMMS) Users Manual. We will send you a reply.
CORROSION PREVENTION AND CONTROL (CPC)
Corrosion prevention and control of Army materiel is a continuing concern. It is important that any corrosion
problems with this item be reported so that the problem can be corrected and improvements can be made to
prevent the problem in future items. The term "corrosion" means the deterioration of a material or its properties
due to a reaction of that material with its chemical environment. An example is the rusting of iron. Corrosion
damage in metals can be seen, depending on the metal, as tarnishing, pitting, fogging, surface residue, and/or
cracking. Plastics, composites, and rubbers can also degrade (also considered to be corrosion based on the
above definition of corrosion). Degradation is caused by thermal (heat), oxidation (oxygen), solvation (solvents),
or photolytic (light, typically ultraviolet) processes. The most common exposures are excessive heat or light.
Damage from these processes will appear as cracking, softening, swelling, and/or breaking. The US Army has
defined the following nine (9) forms of corrosion used to evaluate the deterioration of metals. These shall be used
when evaluating and documenting corrosion.
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03/15/2011Rel(1.10)root(ginfowp)wpno(G582001)
