TM 5-3805-294-23-1
FIELD MAINTENANCE
GENERAL INFORMATION
SCOPE
This manual contains field level instructions for maintenance and troubleshooting of the Hydraulic Excavator Type
1 (HYEX). The HYEX is used for general excavation, demolition and loading operations.
MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed by (as
applicable) DA PAM 750-8, The Army Maintenance Management System (TAMMS) Users Manual (Volume 5,
WP 0794); or AR 700-138, Army Logistics Readiness and Sustainability. (Volume 5, WP 0794)
REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR)
If your HYEX 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. If you
have Internet access, the easiest and fastest way to report problems or suggestions is to follow the instructions
and links below:
All non-Aviation/Missile Warranty, EIR and PQDRs must be submitted through the Web Product Quality Defi-
ciency Reporting (PQDR) site. The Web PQDR site is: http://www.nslcptsmh.csd.disa.mil/webpqdr/webpqdr.htm.
New accounts can be established at the following address:
http://www.nslcptsmh.csd.disa.mil/accessforms/uarform.htm.
You may also submit your information using an SF 368 (Product Quality Deficiency Report). You can send your
SF 368 using e-mail, 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 (CPC) of Army materiel is a continuing concern. It is important that any corrosion
problems with the HYEX be reported so that the problem can be corrected and improvements can be made to prevent
the problem in the future. 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, fog-
ging, surface residue, and/or cracking. Plastics, composites, and rubbers can also degrade. Degradation is caused
by thermal (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 DA PAM 750-8, The Army Maintenance Management System (TAMMS) Users Manual.
DESTRUCTION OF ARMY MATERIAL TO PREVENT ENEMY USE
For procedures to destroy the HYEX to prevent its by the enemy, refer to TM 750-244-6, Procedures for Destruction
of Tank-Automotive Equipment to Prevent Enemy Use. (Volume 5, WP 0794)
PREPARATION FOR STORAGE OR SHIPMENT
For storage procedures for the HYEX, refer to, Preparation for Shipping/Storage. (Volume 5, WP 0791)
Special requirements for shipment of HYEX:
Temperature limits: None
Pressure limits: None
Power source required during shipment: None
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