| Abbreviatio n | Full Spelling | Purpose of use (major applicable machine (*), or component/system) | Explanation |
| A.B.S. | Anti-skid Brake System | Travel and brake (HD, HM) | With this function, when the tires skid (wheels stop rotating), the brakes are released, and when the wheels start to rotate, the brakes are applied again. |
| A.I.S.S. | Automatic Idling Setting System | Engine | This function automatically sets the idling speed. |
| A.J.S.S. | Advanced Joystick Steer ing System | Steering (WA) | Instead of a steering wheel, a lever is used to carry out the steering operations as well as to shift gear and change direction (forward or reverse). |
| A.R.A.C. | Automatic Retarder Accelerator Control | Travel and brake (HD, HM) | When the machine is traveling downhill, if the accelerator pedal is released, this function auto matically applies the retarder with a constant brak ing force. |
| A.R.S.C. | Automatic Retarder Speed Control | Travel and brake (HD, HM) | When the machine is traveling downhill, if the accelerator pedal is released, this function auto matically applies the retarder to ensure that the machine speed does not accelerate above the speed set by the operator. |
| A.S.R. | Automatic Spin Regulator | Travel and brake (HD, HM) | When the rear wheels spin on soft ground sur faces, this function automatically uses the optimum braking force to drive both wheels. |
| ATT. | Attachment | Work equipment | A device that can be fixed onto a machine in order to enable it to do different jobs. |
| B.C.V. | Brake Cooling oil control Valve | Brake (HD) | When the retarder is not being used, this valve bypasses part of the brake cooling oil to reduce the load on the hydraulic pump. |
| C.A.N. | Controller Area Network | Communication and elec tronic control | Communications standard standardized as ISO11898. |
| C.L.S.S. | Closed-center Load Sensing System | Hydraulic | System that can simultaneously actuate multiple actuators regardless of the load (provides better ease of combined operation than O.L.S.S.). |
| C.R.I. | Common Rail Injection | Engine | Uses engine controller to carry out electronic con trol of supply pump, common rail, and injector. Functions to maintain optimum fuel injection amount and fuel injection timing. |
| E.C.M. | Electronic Control Mod ule | Electronic control system | Electronic control device that uses the signals from the sensors on the machine to indicate to the actu ators the optimum actuation. (same as ECU) |
| E.C.M.V. | Electronic Control Modu lation | Transmission (D, HD, WA, etc.) | Proportional electromagnetic valve that gradually increases oil pressure to engage clutch and reduces transmission shock. |
| E.C.S.S. | Electronically Controlled Suspension System | Travel (WA) | System that ensures smooth high-speed travel by using hydraulic spring effect of accumulator to absorb vibration of machine during travel. |
| E.C.U. | Electronic Control Unit | Electronic control system | Electronic control device that uses the signals from the sensors on the machine to indicate to the actu ators the optimum actuation. (same as ECM) |
| E.G.R. | Exhaust Gas Recircula tion | Engine | Functions to recirculate part of exhaust gas to com bustion chamber in order to reduce combustion temperature, controls emission of Nox. |
| E.M.M.S. | Equipment Management Monitoring System | Machine monitor | System that allows data (filter, oil replacement interval, abnormalities on machine, failure code, and failure history) from each sensor on the machine to be checked on monitor. |
| E.P.C. | Electromagnetic Propor tional Control | Hydraulic | Control system that moves an actuator in propor tion to the amperage of an electric current passing through the solenoid. |
| F-N-R | Forward-Neutral-Reverse | Operation | Position of the gear shift lever or switch. |
| G.P.S. | Global Positioning Sys tem | Communication (KOMTRAX, VHMS) | System that is used to determine the current loca tion on the Earth of a ship, car, machine, etc. by receiving the radio wave signals transmitted from the navigation satellites. |
| H.S.S. | Hydrostatic Steering Sys tem | Steering (D) | Steering function that uses a combination of hydraulic motor and bevel shaft to control differ ence in travel speed of left and right tracks to turn machine without using steering clutch. |
| H.S.T. | Hydro Static Transmis sion | Transmission (D, WA) | Hydraulic transmission system that uses a combi nation of hydraulic pump and hydraulic motor to shift gear steplessly without using gears. |
| I.M.A. | Inlet Metering Actruator | Engine | Valve installed at inlet port of pump to adjust fuel intake amount in order to control fuel discharge amount of supply pump. Same as IMV. |
| I.M.V. | Inlet Metering Valve | Engine | Valve installed at inlet port of pump to adjust fuel intake amount in order to control fuel discharge amount of supply pump. Described as IMV (IMA). |
| L.C.D. | Liquid Crystal Display | Machine monitor | Image display device made up of a large number of pixels filled with liquid crystal. |
| L.E.D. | Light Emitting Diode | Electronic parts | Semiconductor element that emits light when the voltage is applied in forward direction, positive volt age to anode and negative voltage to cathode. |
| L.S. | Load Sensing | Hydraulic | Function that senses differential pressure of pump and controls discharge amount according to load. |
| M.M.S. | Multimedia Messaging Service | Communication | Service that allows transmission and reception of short messages consisting of characters or voice or images between cell phones. |
| N.C. | Normally Closed | Electronic and hydraulic | Device actuated to open electric or hydraulic cir cuits that are normally closed if not actuated. |
| N.O. | Normally Open | Electronic and hydraulic | Device actuated to close electric or hydraulic cir cuits that are normally open if not actuated. |
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