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TM 5-3805-296-10
OPERATOR MAINTENANCE
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GENERAL INFORMATION
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SCOPE
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1. Type of Manual. This manual is for use in operating and performing operator maintenance on the Military 621G
Scraper.
2. Equipment Name and Model Number. Scraper, Earth Moving, Motorized, Diesel-Engine-Driven, Model 621G.
3. Purpose of Equipment. The Military 621G Scraper is used to push load, cut, haul, dump, and spread soil in
worldwide earthmoving and construction projects by U.S. Army forces in engineer troop support.
MAINTENANCE FORMS, RECORDS AND REPORTS
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Department of the Army forms and procedures used for the equipment will be those prescribed by DA PAM 750-8,
The Army Maintenance Management System (TAMMS) Users Manual, as contained in the Maintenance Manage-
ment Update.
REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIRS)
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If your scraper 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
address/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)
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CPC 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.
Corrosion specifically occurs with metals. It is an electrochemical process that causes the degradation of metals. It
is commonly caused by exposure to moisture, acids, bases, or salts. 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
Plastics, composites, and rubber compounds can also degrade. Degradation is caused by thermal energy (heat),
oxidation (oxygen), solvation (solvents), or photolytic (light, typically UV) processes. The most common exposures
are excessive heat or light. Damage from these processes will appear as cracking, softening, swelling, and/or
breaking.
SF Form 368, Product Quality Deficiency Report, should be submitted to the address specified in PAM 750-8,
TAMMS Users Manual.
OZONE-DEPLETING SUBSTANCES
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There are no ozone-depleting substances contained on the machine or used during machine maintenance.
DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE
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For destruction of Army materiel to prevent enemy use, refer to TM 750-244-3.
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