The whole process of disassembly and assembly of new energy heavy-duty truck transmission

Author:F-Diesel Date:August 21, 2025 3:44 AM Tag:[ gearbox , assembly , bolt tightening torque 54-65 N.m , odometer rotor installation , rear cover housing installation ]

This knowledge base introduces or describes the Step-by-step gearbox assembly guide, including intermediate shaft alignment, main shaft installation, bearing assembly, and torque specifications.

1、 Assembly:

Make tooth alignment marks on the intermediate shafts and install the two intermediate shaft assemblies, with the rear end splined shaft installed on the lower left.

Install the main shaft assembly.

Assemble the primary shaft assembly.

Assemble the rear cover housing.

Assemble the main shaft rear bearing.

Assemble the left intermediate shaft rear bearing.

Assemble the left intermediate shaft front bearing.

Make tooth alignment marks on the primary shaft gear tooth groove that meshes with the marked teeth on the intermediate shaft. Count the teeth and make another tooth alignment mark on the primary shaft gear. Align the teeth and mesh the marked teeth on the intermediate shaft with the marked teeth on the primary shaft gear. Assemble the rear and front axles of the right intermediate shaft. Assemble the rear cover housing fixing bolts. Bolt tightening torque: 54-65 N.m. Assemble the odometer rotor and rear bearing cover. Tightening torque: 54-65 N.m. Assemble the power take-off rear cover and tighten the bolts. Bolt tightening torque: 62-74 N.m.