HOWO High quality Inter-Axle Differential AZ9231320271

Description

Inter-Axle Differential AZ9231320271 is an accessory for the HOWO series vehicles of SINOTRUK. Here is the detailed introduction:

Brand: SINOTRUCK, Type: Gear-type Differential, Applicable Vehicle Models: Haowo of Shagang, Part Number: AZ9231320271.

Inter-Axle Differential AZ9231320271 Structural material:

It is mainly made of iron and forged steel, with an overall size of approximately 370mm × 230mm × 250mm and a weight of about 23kg.

Inter-Axle Differential AZ9231320271 Function and Purpose:

The main function of the differential is to enable the left and right wheels of the vehicle to rotate at different speeds when turning or driving on uneven roads, ensuring that the vehicle can smoothly turn and travel steadily, and reducing tire wear and stress on mechanical components. This differential assembly is used in the middle axle of the Hongwo HC16 drive axle series of Hongqi Heavy Truck and can achieve the differential function between the left and right wheels of the middle axle.

Inter-Axle Differential AZ9231320271 Maintenance and upkeep:

During use, it is necessary to regularly check the oil quantity and quality of the differential. Add or replace the oil in time to prevent the differential from being damaged due to lack of oil or poor oil quality. At the same time, check if there is any oil leakage or abnormal noise in the differential. If any problems are found, repair them promptly.

If it is determined whether the Inter-Axle Differential AZ9231320271 requires repair:

Judging directly from abnormal symptoms

1. Obvious and persistent abnormal noiseCharacteristics: During vehicle operation (especially when turning, accelerating, or decelerating), a regular abnormal noise is emitted from the differential area, such as “buzzing”, “clicking”, “clunking”, or “squeaking”, and it intensifies as the vehicle speed / load increases.
Possible causes: Gear wear, abnormal meshing clearance, bearing damage, planetary gear jamming, etc.
Judgment: If the abnormal noise disappears when in neutral gear, it is mostly a problem with other components of the transmission system; if there is still an abnormal noise in neutral gear and it originates from the differential area, immediate repair is required.

2. Oil leakage or abnormal lubrication Feature:
There are oil stains / oil drips at the joint and oil seal of the differential housing. Oil traces can be seen on the ground.
When checking the lubricating oil, it was found that the oil quantity was significantly reduced, the color was dark (normally it is light yellow or brown), there were metal debris / impurities, or a burnt smell.
Possible causes: Aging of seals, cracks in the housing, wear and debris from bearings / gears.
Judgment: Oil leakage will lead to insufficient lubrication. Abnormal oil condition indicates internal wear, and timely repair is necessary.

3. Differential function failure
Feature: One side of the vehicle’s wheels skids severely when turning, or there is a significant “dragging sensation” (such as difficulty in turning, abnormal tire wear); in four-wheel drive models, the differential lock cannot be unlocked / locked normally when switching modes, causing driving difficulties.
Possible causes: Stuck planetary gears and half-shaft gears, broken planetary gear shaft, differential lock failure.
Judgment: Such problems directly affect driving safety and require immediate shutdown for inspection.

4. Overheating phenomenon
Feature: After driving for more than 30 minutes, touch the differential housing (be careful to avoid burns), and feel it extremely hot (over 90℃, normal working temperature is about 60-80℃).
Possible causes: Poor lubrication, excessive wear of gears / bearings, long-term overloading.
Judgment: Overheating will accelerate component aging and even cause gear tempering, and urgent investigation is required.