starter TC620-16800，TC62016800 TC620-16800，TC62016800 TC620-16800，TC62016800 TC620-16800，TC62016800 TC620-16800，TC62016800 FOR Kubota tractor

The installation steps and precautions for the Kubota tractor 12V starter are as follows: Installation Steps Preliminary Preparation •  Confirm that the starter model matches the Kubota tractor, prepare tools such as wrenches and screwdrivers, and clean the dust, oil stains, and rust around the installation position.  •  Disconnect the negative cable of the tractor's battery to prevent short circuits during installation.   Remove the Old Starter •  Locate the installation position of the starter on the tractor, which is usually at the connection between the engine and the transmission.  •  Remove the cables and connectors from the starter, and pay attention to marking the positions of each wire harness for correct connection later.  •  Remove the bolts or nuts that fix the starter and take off the old starter.Install the new starter •  Align the new starter with the mounting holes and place it in the installation position.  •  Install the fixing bolts or nuts and tighten them to the specified torque. The torque for the fixing bolts of starters in different models of Kubota tractors may vary, and it is generally clearly specified in the maintenance manual. If there is no specific data, you can refer to the tightening torque of starters with similar specifications. Usually, the torque for M10 bolts is about 44N・m, and for M12 bolts, it is about 78N・m.  •  Connect the electrical circuits of the starter, ensuring the connections are secure without looseness or short circuits. First, connect the positive battery cable to the solenoid switch, then connect the positive and negative battery cables.Inspection and Testing •  After installation, carefully check whether the mounting bolts of the starter are tight and whether the wiring harness connections are correct.  •  Connect the negative battery cable, turn on the power, try to start the tractor, and check whether the starter can operate normally to drive the engine to start.

Notes •  During the installation process, handle the starter motor gently, avoid knocking or colliding with it to prevent damage to internal components.  •  When disassembling and installing the wiring harness, operate carefully to avoid excessive pulling on the harness, which may cause damage to the circuits.  •  Before installation, ensure that the inside and outside of the starter motor are clean. If there is dust or debris, use compressed air to blow it clean or wipe it with a clean cloth.  •  Be sure to connect the power cables in the specified order and with the specified torque; otherwise, it may affect the normal operation of the starter motor, or even damage the starter motor and the vehicle's electrical system.

References：The "passage" you are referring to, which contains the installation steps and precautions for the 12V starter of Kubota tractors, does not have a clear single authoritative source. Instead, it is a synthesis of multiple relevant materials and maintenance experiences. Some of the installation steps and precautions are consistent with the relevant content in the Kubota tractor maintenance manual. At the same time, reference has also been made to the general starter installation methods from some automobile maintenance websites, such as the article "How to Correctly and Standardly Install a Starter" on Pacific Auto Network. The content in this article regarding pre-installation preparations, installation steps, and testing is similar to the aforementioned installation content for Kubota tractor starters. In addition, some component supplier websites, such as acepowerparts.com, also mention key installation precautions when introducing starter-related products for Kubota tractors, such as confirming compatibility and checking electrical connections.