LHS Army Flashcards
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Questions and Answers

What does GCWR stand for?

  • General Combination Weight Rating
  • Great Combination Weight Rating
  • Gross Combination Weight Rating (correct)
  • Gross Cargo Weight Rating
  • What is the weight of GCWR?

    109,000

    What does HEMTT stand for?

    Heavy Expanded Military Tactical Truck

    What does ECHU stand for?

    <p>Enhanced Containers Handling Unit</p> Signup and view all the answers

    What does LHS stand for?

    <p>Loading Handling System</p> Signup and view all the answers

    What is the primary design purpose of LHS?

    <p>Loading/unloading flatracks</p> Signup and view all the answers

    What is the fording depth of LHS?

    <p>48in in deep water for 5 min</p> Signup and view all the answers

    What is the normal operating range of all models?

    <p>300 miles based upon 154 gallons</p> Signup and view all the answers

    What does PTO stand for?

    <p>Power take-off</p> Signup and view all the answers

    What is the maximum height that the LHS can reach?

    <p>22 ft 2 in</p> Signup and view all the answers

    What is the maximum engine speed for the vehicle?

    <p>1,500 rpm</p> Signup and view all the answers

    When does the Low Fuel Indicator light go Amber?

    <p>When fuel is below 1/8 of full tank</p> Signup and view all the answers

    When is the Over Speed Indicator illuminated Red?

    <p>When engine speed exceeds 2,450 rpm</p> Signup and view all the answers

    What is the fording depth and duration for the M1120 LHS without damaging equipment?

    <p>48in for 5min</p> Signup and view all the answers

    How many positions does the hydraulic selector switch have?

    <p>5</p> Signup and view all the answers

    Which position is used on the hydraulic selector switch when automatic circuits have failed?

    <p>Mans Trans</p> Signup and view all the answers

    How often should you inspect your chain including the hooks?

    <p>Monthly</p> Signup and view all the answers

    How often should you inspect your web tiedown straps?

    <p>Before each use</p> Signup and view all the answers

    What should you look for when inspecting a chain link and the hook?

    <p>Burns, cuts and tears</p> Signup and view all the answers

    Ensure that straps are tensioned to form at least _____ turns to takeup spool.

    <p>1 1/2</p> Signup and view all the answers

    Where is the center of gravity on the M1077 flatracks?

    <p>106 in from front edge of flatracks</p> Signup and view all the answers

    What are Class 3 items?

    <p>Petroleum, oil, lubricants</p> Signup and view all the answers

    When operating the M1120 vehicle with the M1076 trailer, the heaviest flatracks can be loaded on the trailer.

    <p>False</p> Signup and view all the answers

    What is the difference between the M1120A4 and M1120A2?

    <p>Cursing range</p> Signup and view all the answers

    What is the overall length of the M1120A4?

    <p>402in</p> Signup and view all the answers

    How much does the ECHU lift frame weigh?

    <p>980lb</p> Signup and view all the answers

    What is the weight limit for the small ring?

    <p>10,000lbs</p> Signup and view all the answers

    What is the weight limit for the big or large ring?

    <p>25,000lbs</p> Signup and view all the answers

    Break system failure (low air) will turn red when either front or rear air pressure is below:

    <p>70 psi and a buzzer sound</p> Signup and view all the answers

    Describe the engine brake positions.

    <p>High: maximum engine brake, Medium: less engine brake, Low: less amount of engine brake</p> Signup and view all the answers

    When does the parking brake control activate?

    <p>When air pressure drops below 30 psi</p> Signup and view all the answers

    What are the positions of the Hydraulic Selector Switch?

    <p>-off -auto -manual -frame -transit</p> Signup and view all the answers

    What is the maximum trailer bumper point height?

    <p>0.5in</p> Signup and view all the answers

    What is the primary mission of the ECHU?

    <p>To allow the PLS and the HEMTT LHS to load, transport and unload ISO containers</p> Signup and view all the answers

    When does the transmission oil temperature gauge illuminate red?

    <p>When transmission temp is above 482 degrees or torque temperature is above 350 degrees Fahrenheit</p> Signup and view all the answers

    What is the load capacity limit for LHS?

    <p>11 tons</p> Signup and view all the answers

    What indicates air filter restrictions?

    <p>Red light will appear, push yellow button gauge to reset</p> Signup and view all the answers

    What is the LHS nomenclature?

    <p>M1120A4</p> Signup and view all the answers

    What is the function of the air charge cooler?

    <p>Intake air to cool down: engine, transmission oil and hydraulic fluid</p> Signup and view all the answers

    What slope can't exceed for loading or unloading LHS?

    <p>5 degrees</p> Signup and view all the answers

    What does PLS stand for?

    <p>Palletized loading system</p> Signup and view all the answers

    What is the idle engine speed?

    <p>1500 rpm</p> Signup and view all the answers

    What is low idle speed?

    <p>600 rpm</p> Signup and view all the answers

    Before using the hydraulic selector switch, what must the engine speed be?

    <p>Idle</p> Signup and view all the answers

    What is the high idle speed?

    <p>2100 rpm</p> Signup and view all the answers

    How many feet must a load extend beyond the bed to require a red flag?

    <p>4ft</p> Signup and view all the answers

    Study Notes

    LHS Army Flashcards Study Notes

    • GCWR (Gross Combination Weight Rating): 109,000 lbs.

    • HEMTT: Stands for Heavy Expanded Military Tactical Truck.

    • ECHU: Enhanced Containers Handling Unit for container operations.

    • LHS: Acronym for Loading Handling System, specifically designed for loading and unloading flatracks.

    • Fording Capability: LHS can ford up to 48 inches of water for a duration of 5 minutes.

    • Normal Operations Range: All models typically have a range of 300 miles based on a fuel capacity of 154 gallons.

    • PTO: Refers to Power Take Off, used to transfer engine power to another mechanism.

    • LHS Height: The loading height can reach up to 22 feet 2 inches.

    • Engine Speed: Can be increased to 1,500 RPM; red over-speed indicator triggers when above 2,450 RPM.

    • Fuel Indicator: The low fuel indicator light turns amber when the fuel level falls below 1/8 of the full tank.

    • Monthly Inspections: Chains and hooks should be inspected monthly; web tiedown straps must be checked before each use.

    • Inspection Focus: During chain inspections, look for burns, cuts, and tears in chain links and hooks.

    • Strap Tensioning: Ensure straps are tensioned to form at least 1.5 turns on the take-up spool.

    • Center of Gravity: For M1077 flatracks, the center of gravity is located 106 inches from the front edge.

    • Class 3 Items: Include petroleum, oil, and lubricants.

    • M1120 with M1076 Trailer: Heavy flatracks cannot be loaded on this combination.

    • M1120A4 vs. M1120A2: The key difference is in the cruising range.

    • M1120A4 Overall Length: Measures 402 inches.

    • ECHU Lift Frame Weight: Weighs 980 lbs.

    • Ring Capacities: Small ring supports 10,000 lbs; large ring supports 25,000 lbs.

    • Brake System Failure: Occurs when air pressure is below 70 psi, accompanied by a red indicator.

    • Engine Brake Settings: Three positions: High (maximum braking), Medium (less), Low (minimum braking).

    • Parking Brake Control: Activates when air pressure falls below 30 psi.

    • Hydraulic Selector Switch Positions: Includes off, auto, manual, frame, and transit options.

    • Trailer Bumper Point Limit: Should not exceed 0.5 inches.

    • Primary ECHU Mission: Facilitates loading, transporting, and unloading ISO containers using PLS and HEMTT LHS.

    • Transmission Oil Temperature Gauge: Indicates in Fahrenheit and Celsius; illuminates red over 482 degrees or 350 degrees for torque.

    • LHS Payload Limit: Will not function with payload exceeding 11 tons.

    • Air Filter Warning: A red light signifies restrictions; reset with the yellow button on the gauge.

    • LHS Nomenclature: Identified as M1120A4.

    • Air Charge Cooler Function: Cools intake air as well as engine, transmission oil, and hydraulic fluid.

    • Terrain Limit for Loading/Unloading: Slope cannot exceed 5 degrees.

    • PLS (Palletized Loading System): A system used for efficient loading/unloading of cargo.

    • Idle RPM: Standard idle speed is 1,500 RPM; low idle is at 600 RPM, and high idle is at 2,100 RPM.

    • Hydraulic Selector Switch Engine Requirement: Engine must be at idle for operation.

    • Exceeding Load Bed Limit: Loads extending beyond 4 feet require a red flag for safety.

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    Description

    This quiz features essential terminology related to the LHS (Loading Handling System) used by the Army. Each flashcard includes a word and its definition, aiding in the understanding of key concepts such as GCWR and HEMTT. Perfect for military personnel and enthusiasts looking to reinforce their knowledge.

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