Alternator 0125811006 LR031027 0121715058,0121715158,0125811006 0125811034 0125811091.0125811092 CAL10473.CAL10473AS.CAL10473ES, CAL10473OS.CAL10473RS.DRA1099 FOR Land Rover Range Rover

The installation steps for the Land Rover Range Rover 12V generator are as follows: •  Preparation: Prepare tools such as a wrench or socket wrench set, ratchet wrench, etc. Ensure the vehicle is parked on a flat and stable surface, pull the handbrake, and wear gloves and goggles.  •  Disconnect the battery: Use a wrench or socket wrench to unscrew the battery negative cable to prevent short circuits during installation.  •  Lift the vehicle (may be required for some models): If it is necessary to remove the front bumper cover to access the generator, use a jack to lift the vehicle, then support it on jack stands to ensure the vehicle is stable and safe.  •  Remove the front bumper cover (may be required for some models): The steps required to remove the front bumper cover vary depending on the Land Rover model. Refer to the vehicle manual for specific instructions.Remove the front bumper cover (may be required for some models): The steps required to remove the front bumper cover vary depending on the Land Rover model. Refer to the vehicle manual for specific instructions.  •  Loosen the generator belt: Use a wrench or socket wrench to loosen the generator belt tensioner. Once the belt is loose, remove it from the generator pulley.  •  Disconnect the generator cables: Use a wrench or socket wrench to disconnect the cables connected to the generator. Pay attention to the positive and negative cables and ensure they are correctly connected to the new generator.  •  Remove the generator mounting bolts: Use a wrench or socket wrench to remove the bolts that secure the generator to the bracket, then carefully take out the old generator from the bracket.Install the new generator: Place the new generator on the bracket and secure it, ensuring that the generator is installed correctly and all bolts are tightened. It is recommended to use a torque wrench when tightening these bolts to meet the correct torque requirements.  •  Connect the generator cables: Connect the generator cables to the new generator, ensuring that the positive and negative cables are connected correctly.  •  Install the generator belt: Install the generator belt on the generator pulley and crankshaft pulley, and use a tensioner to tension the belt until the correct tension is achieved.Install the front bumper cover (if it was removed earlier): Put the front bumper cover back in place and tighten all the bolts.  •  Connect the battery: Connect the negative battery cable to the battery, ensuring the connection is secure and not loose.  •  Test run: Start the vehicle and let it idle for a few minutes. Use a multimeter to check the battery voltage, ensuring it is at least 13.5 volts when the engine is running. Also, check if any fault lights are on the dashboard to ensure the generator is operating normally.

The core precautions for installing the 12V generator in a Land Rover Range Rover are centered on safety first, correct wiring, meeting torque standards, and thorough testing, as follows: I. Bottom line for safe operation •  It is essential to first disconnect the negative battery terminal, and throughout the process, avoid tools coming into contact with both the positive and negative terminals of the generator simultaneously to prevent short circuits that could burn out electrical appliances or cause electric shocks.  •  Do not operate on a vehicle that is only supported by a jack after being lifted; it must be secured with safety stands. Working alone under the vehicle is prohibited.  •  Wear gloves and goggles to avoid scratches from belt rebound or bolt slippage, and keep away from high-temperature engine components.II. Key Installation Details •  When wiring, strictly correspond to the positive and negative poles (usually the generator terminals are marked with "+""-" or "B+""GND"). Incorrect connection will directly burn out the generator or the vehicle's ECU.  •  The bolts for fixing the generator must be tightened to the torque specified in the vehicle manual (generally 25-35N・m, subject to the specific vehicle model manual). Loose bolts will cause vibration and abnormal noise, while over-tightening may damage the bracket or the generator housing.  •  The belt installation must be aligned with the pulley groove, and the tension should be such that "pressing the midpoint of the belt can make it sink 1-2 cm". Too loose a belt will easily slip and result in insufficient power generation, while too tight a belt will wear the bearing.  •  For a new generator, it is necessary to confirm that its model matches the original vehicle (check the power, mounting holes, and wiring interfaces) to avoid compatibility issues.III. Testing and Subsequent Inspections •  After starting the vehicle, measure the battery voltage with a multimeter: it should be between 13.5-14.8V at idle, and remain stable when accelerating to 2000 rpm. A voltage below 13.5V may indicate a loose belt or poor wiring connections.  •  During operation, observe that there is no charging fault light (battery icon) on the instrument panel, no abnormal noises or odors, and no abnormal overheating of the generator housing.  •  Recheck within a short period (1-3 days) after installation, focusing on checking whether the terminal connections are loose and whether the belt is misaligned, to avoid potential hazards during long-term use.IV. Notes on Special Vehicle Models •  For some model years of the Land Rover Range Rover, it is necessary to remove the front bumper or air intake components. When removing them, properly mark the parts to avoid misalignment during installation, which could affect sealing or heat dissipation.  •  For vehicles with start-stop functionality, the generator is different from the regular version. It is necessary to confirm that it has the special start-stop identification. After installation, fault codes must be cleared (a diagnostic tool can be used); otherwise, the function will fail.

References：The "passage" you mentioned refers to the previous content about the precautions for installing the 12V generator of the Land Rover Range Rover. Based on the available information, its specific source cannot be clearly identified. These precautions are compiled by integrating content from automobile repair manuals, professional automobile repair websites (such as Qiche Dashi, Autohome, etc.), and relevant automotive technical materials. For example, multiple articles on the Qiche Dashi website mention similar generator installation precautions, including disconnecting the power supply, selecting a matching generator, checking the circuits, and so on. A guide on replacing Land Rover generators from Anhui Nanchai Power also covers installation steps and precautions, which are similar to the content you have seen.