direct unit maintenance operations n.
Skip this Video
Loading SlideShow in 5 Seconds..
Download Presentation


529 Vues Download Presentation
Télécharger la présentation


- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript


  2. Maintenance is a command responsibility! Commanders, supervisors and leaders are responsible for continually evaluating their unit or activity maintenance operations to determine which areas of operation require improvement, to ensure their units are kept at the highest possible state of readiness.

  3. DIRECT UNIT MAINTENANCE OPERATIONS(Terminal Learning Objective) TASK: Understand the requirements for directing unit maintenance operations. CONDITION: In a classroom environment, given access to AR 750-1, DA PAM 738-750, DA PAM 750-35 AR 220-1, AR 385-10, AR 700-138, DA PAM 750-1 and FM 4-30.3.

  4. DIRECT UNIT MAINTENANCE OPERATIONS(Terminal Learning Objective - Cont.) • STANDARDS: • Describe the Army Maintenance Standard and Army Maintenance Concepts IAW AR 750-1 and DA PAM 738-750. • Describe both the current and future levels of Army maintenance. • Describe the key maintenance personnel at battalion level. • Explain how the Army Maintenance Management System (TAMMS) supports the Army maintenance doctrine IAW DA PAM 738-750.

  5. DIRECT UNIT MAINTENANCE OPERATIONS(Terminal Learning Objective - Cont.) • STANDARDS (cont.): • Describe how the Unit Level Logistics System (ULLS) and its reports support the management of unit level maintenance and the unit Prescribed Load List (PLL). • Explain the importance of unit maintenance to Materiel Readiness Reporting. • Describe the requirements for a unit SOP IAW Chapter 5 and Chapter 7 of DA PAM 750-35. • Describe the importance of the following maintenance programs: Army Oil Analysis Program (AOAP), unit safety program, unit tool room, publications, Test, Measurement and Diagnostic Equipment (TMDE) and Battle Damage Assessment and Repair (BDAR).

  6. Characteristics of Unit Maintenance • Foundation of the Army Maintenance System • Based on –10 and –20 Technical Manuals (TMs) • Performed by Operator/Crew, Supervisors and Unit Maintenance Personnel

  7. Maintenance Standards and Concepts • The Army has one maintenance standard, which is outlined in AR 750-1, Army Materiel Maintenance Policies.

  8. Maintenance Standards and Concepts (cont.) • Standard based on the TM (Technical Manual) –10 -20 level PMCS (Preventive Maintenance Checks and Services). • Equipment FMC (Fully Mission Capable). • All faults identified, corrective actions taken, parts ordered or equipment is job-ordered to DS maintenance. • Services performed on time. • All urgent and limited urgent MWO (Modification Work Orders) are applied. • All BII (Basic Issue Items) and COEI (Components of End Items) are present and serviceable or on order.

  9. Maintenance Standards and Concepts (cont.) • PMCS ensures early detection of faults and maintenance requirements. • MAC (Maintenance Allocation Charts) are in the –20 series maintenance manuals and specify what tasks are performed at what level of maintenance

  10. Maintenance Standards and Concepts (cont.) • Fix Forward is the current Army maintenance concept. • Fix as far forward on the battlefield as possible, either thru detailed repair or component replacement. • Return equipment as quickly as possible to the fight. • METT-TC (mission, enemy, troops, terrain, time and civilians) dependant.

  11. Levels of Maintenance • The Army Maintenance System, less aircraft, consists of 4 levels. • Operator/Unit • Direct Support (DS) • General Support (GS) • Depot

  12. Operator and Unit (10/20 Levels) • Initial and most critical level. • Performed by the operator or organizational mechanic. • Preventive Maintenance Checks and Services (PMCS) • Replace unserviceable parts as authorized by the Maintenance Allocation Charts (MAC)

  13. NOTE: The MAC Chart is found in Appendix B of the 20 level TM. It provides what tasks are authorized to be performed at each level of maintenance for a given piece of equipment.

  14. Operator and Unit (10/20 Levels)(cont.) • Requisition, receipt, storage and issue of repair parts. • Army Materiel Status System reporting. • Lubricating, cleaning, preserving, tightening, replacing and performing adjustments authorized by the MAC. • Diagnosis and fault isolation as authorized by the MAC. • Verification of faults and when necessary evacuation to the supporting DS maintenance unit.

  15. Direct Support (DS) (30 Level) • Provides Direct Support maintenance support IAW the MAC for supported units. • Inspections to verify item’s serviceability and determine economic reparability.

  16. NOTE: DS Maintenance is the first place in which it is determined whether damage to equipment is the result of “Fair Wear and Tear” (FWT). If damage is determined to be thru other than FWT, an Estimated Cost of Damage (ECOD) will be provided to the owning unit. The owning unit then makes a determination of whether or not negligence or willful misconduct is involved, and takes appropriate action IAW AR 735-5 before DS maintenance can proceed.

  17. Direct Support (DS) (30 Level) • Repair and return to user IAW MAC. • Repair and return to supply activity Unserviceable RX components. • Diagnosis and isolation of Materiel or module malfunctions. • Perform light body repair (straightening, welding, sanding and painting of skirts, fenders and hull sections)

  18. Direct Support (DS) (30 Level) • Evacuation of reparable end items to designated repair facilities when repair is beyond capabilities IAW MAC. • Provide backup DS maintenance support to other DS units. • Limited fabrication as identified in the appropriate Technical Manual (TM).

  19. General Support (GS) (40 Level) • Normally located at Echelons Above Corps (EAC). • Characterized by using job shop or production line operations to perform commodity oriented repair of components or end items. • Repaired items are returned to the theater supply system.

  20. Depot Level Support • Complete system overhaul. • Performed by industrial-type activities operated by the Army. • May be performed by contract and interdepartmental or interagency agreement. • Policy and Guidance can be found in AR 750-2.

  21. Aircraft Maintenance • Consists of 3 Levels • Aviation Unit Maintenance (AVUM) • Aviation Intermediate Maintenance (AVIM) • Depot

  22. AVUM Maintenance • Performs high frequency “on aircraft” maintenance tasks required to retain or return aircraft to Fully Mission Capable (FMC) condition. • MAC Chart lists the maintenance capabilities of the AVUM. • If aviation element is less than 10 aircraft, maintenance is usually only inspections, minor adjustments and minor repair.

  23. AVIM Maintenance • Provides mobile, responsive, one-stop maintenance support. • Performs all maintenance functions as designated by the MAC. • Replace and repair modules and components. • Repair of the end item. • Inspects, troubleshoots, tests, diagnoses, repairs, adjusts, calibrates, and aligns aircraft system modules and components.

  24. Depot Maintenance (Aviation) • Depot level programmed maintenance includes overhaul, crash repair, battle damage repair, and modifications. • Unprogrammed maintenance is repair and return to user maintenance.

  25. Two Level Maintenance System • Replaces the 4 level system in Objective Force. • Field Maintenance-combination of the current unit/org levels with some DS level tasks. • Consists of “on-system” tasks performed by operator/crew and mechanics. • Repairs made through component/module /assembly replacement. • Repair and return equipment to unit.

  26. Two Level Maintenance System(cont.) • Sustainment Maintenance-Combines Depot, GS and the remaining DS tasks. • Consists of “off-system” component /module/assembly repair and commodity oriented repair of components and end items. • Primarily supports the supply system.

  27. Key Maintenance Personnel • Company/Battery/Troop Commander • Emphasizes maintenance and ensures subordinates are held responsible for conducting maintenance operations. • Battalion Maintenance Officer (BMO) • Overall supervision of all maintenance operations and programs in the battalion.

  28. Key Maintenance Personnel (cont.) • Battalion Maintenance Technician (BMT) • Technical expert for the Unit Level Logistic System (ULLS). • Organizes the maintenance teams and monitors maintenance programs. • Battalion/Company Motor Sergeant (BMS) • Supervises maintenance, services and AOAP program.

  29. Key Maintenance Personnel (cont.) • Mechanics • Perform the maintenance. • Diagnose problems using the proper tools and test equipment. • Equipment Records/ULLS Clerk • Implements ULLS procedures correctly. • Maintains current copies of maintenance management and unit supply regulations. • Maintains current Prescribed Load List (PLL).

  30. Key Maintenance Personnel (cont.) • Operator • Operate equipment and conduct PMCS correctly IAW proper TM-10. • Correctly identify faults.

  31. The Maintenance Leaders Course 8C-F21/020 is available for all NCOs, Commissioned Officers and Warrant Officers. ATRSS Course Catalog 1 Coursework

  32. Tool Room • Maintenance cannot be accomplished without proper tools. • Tools are accounted for, controlled and maintained IAW DA PAM 710-2-1. • A primary tool room attendant is appointed on orders by the commander and signs for all tools, sets, kits, outfits and Test Measurement and Diagnostic Equipment (TMDE) stored in the tool room. • Tools must be inventoried regularly IAW Chapter 9 of DA PAM 710-2.

  33. Maintenance Safety • The entire chain of command must be safety conscious and ensure that safety guidelines are followed at all times. • A safety officer, NCO, and a unit Fire Marshall appointed on orders by the commander. • A unit must have a safety SOP.

  34. NOTE: The Army Safety Center can be found online at

  35. Preventive Maintenance Program Designed to: Detect potential failures early Lower cost by reducing catastrophic failures Conserve resources by changing oil only when needed Cyclic in nature. Army Oil Analysis Program(AOAP)

  36. Test Measurement Diagnostic Equipment (TMDE) • Any system or device capable of being used to evaluate the operational condition of equipment. • Torque wrenches, hydraulic pressure gauges, simplified test equipment (STE), multimeters, fuel dispensing meters, etc. • Must be calibrated regularly.

  37. Test Measurement Diagnostic Equipment (TMDE) (cont.) • Covered in TB 43-180, available online as an Electronic Technical Manual (ETM) at the LOGSA website • Commanders appoint a TMDE calibration monitor.

  38. Maintenance Publications • Commanders appoint a publications officer and NCO on orders. • Recommended list of publications to have on hand found in FM 4-30.3 and DA PAM 750-1. • Preventive Maintenance (PS) monthly magazine has a list of all new and/or changes to publications in each edition.

  39. Maintenance Publications(cont.) • All maintenance and equipment related regulations, circulars, SOPs, supplements, technical bulletins, technical manuals, supply manuals, lubrication orders and blank forms must be on hand or on order at all times.

  40. Publication Websites • Official Department of the Army Publications and Forms (ARs, DA PAMs and links to the sites below) • LOGSA site (TMs, TBs & SCs ) • General Reimer’s Training and Doctrine Digital Library (FMs, MTPs, STPs, TCs & TMs)

  41. Recovery & Battlefield Damage Assessment and Repair (BDAR) • BDAR-Any action taken to return disabled equipment rapidly to the operational commander during combat—”Jury Rigging”. • BDAR procedures apply at all levels depending on extent of damage, time available, skills required, parts, components, tools and materials available.

  42. BDAR (cont.) • Crew/Operator BDAR kits should be carried on board each vehicle. These kits can be ordered through the supply system. • The objective is to get a system safely and quickly back into operation. • Repair only what is needed-no cosmetic repairs. • Senior man present decides when and if to perform BDAR. Decisions are based on available resources, available time, and tactical situation.

  43. Purpose of the Unit Level Logistics System (ULLS) • Through automation, provides supervisory control and flexibility. • Expedites repair parts supply and maintenance functions to the lowest level. • Reduces errors that could occur in a manual operation. • Enhances unit’s readiness by accurately collecting supply and maintenance data for non-mission capable equipment.

  44. Objectives of ULLS • Automate Class IX (repair parts) supply procedures: • Automated or replaced the processes and records required to manage the unit repair parts program and PLL. • Automate the Army Maintenance Management System: • Automated or replaced most of the unit operational, maintenance and equipment historical records.

  45. Objectives of ULLS (cont.) • The Materiel Readiness Reporting procedures: • Automated and replaced the manual materiel readiness reports for ground, missile and aviation equipment.

  46. Characteristics of the ULLS System • ULLS is standard computer software for automating unit maintenance operations. • ULLS hardware differs from unit to unit-the basic principles are the same. • Minimum hardware requirements are outlined in ULLS End Users Manual. • Software Change Packages (SCP) and Interim Change Packages (ICP) are fielded periodically-must be installed within 30 days.

  47. Purpose of Data Interface in ULLS • ULLS interfaces directly with SAMS-1 and SARSS-1 daily by floppy diskette or telecommunications. • ULLS supply request data is sent to SARSS-1. • Request for supply actions (new requests, cancellations, turn-ins or modifications). • Request for follow up actions (for validation or status).

  48. Purpose of Data Interface in ULLS(cont.) • ULLS maintenance data is sent to SAMS-1. • Unit daily non-mission capable (NMC) equipment data. • Supply and maintenance data transmitted to SAMS-1 for consolidation and transmission to SAMS-2. • Equipment work order data transmitted when support maintenance is requested.

  49. Purpose of Data Interface in ULLS(cont.) • SARSS-1 sends supply status info back to ULLS. • Automatically updates the supply and maintenance data files within ULLS. • If invalid status is received, ULLS processes the supply status and produces an Exception Status Report. This provides the unit with the data needed to take corrective action.

  50. Purpose of Data Interface in ULLS(cont.) • SAMS-1 sends work order status information back to ULLS. Updated work order status information is posted to the Maintenance Request Register. • Maintenance Request Register keeps the unit updated on the current status of equipment at DS. • The maintenance Request Register uses the work order status to track DS maintenance down time between supply and maintenance.