What is the rear door lift assembly
The rear door lift assembly refers to a component installed on the rear door of a car that is mainly used to control the lifting of the window. It includes motor, guide rail, glass bracket and other parts, through the motor to drive the relevant parts to drive the window along the guide rail .
Structure and working principle
The rear door elevator assembly mainly consists of the following parts:
Motor : provides power to drive pinion rotation.
sector tooth plate : connected with the motor, transfer power.
driving arm and driven arm : The cross arm type structure drives the glass along the slide rail.
glass bracket : support the glass to ensure its smooth lifting.
Adjust the slide : guide the glass along the guide rail.
When the ignition switch is switched on, the door and window relay is closed by electric shock, and the electric gate circuit is switched on. The combination switch is placed in the "up" position, and the current flows through the door and window motor to make the glass rise; Placed in the "down" position, the current direction changes, the motor rotation direction changes, and the glass drops. When the window is lowered to the end, the circuit breaker will be cut off for a period of time and then restored to .
Types and brands
Different models and brands of car rear door lifter assemblies may vary in hardware and software solutions, but the core function is to allow the window to automatically raise or lower, protect the contents of the car and prevent theft. For example, electric door and window switch for Toyota Corolla, electric window control switch assembly for Volvo XC70 .
The main functions of the rear door elevator assembly include the following :
Adjusting window opening and closing : The elevator assembly ensures that the window can be opened and closed smoothly by adjusting the window opening and closing degree, providing a comfortable environment for the driver and passengers .
Ensures smooth operation : The lift assembly ensures smooth window opening and closing, smooth operation at all times, enhancing the driving experience and overall vehicle performance .
safety function : when the elevator fails, the window can stay in any position, which increases the safety of the vehicle to a certain extent.
Maintenance and troubleshooting methods :
Maintenance : regularly check and replace the seal strip and lubricating guide rail of the glass regulator to prevent aging, deformation or contamination of the guide rail, and ensure the smooth operation of the regulator .
Troubleshooting : If the elevator fails, you can use the following steps to troubleshoot and repair:
Open the door, find the grip and remove the screw cover.
Unscrew the hand clasp to ensure that it can be removed freely.
Remove cover completely with tools to facilitate access to lifter.
Carefully unplug the glass lifter to prevent damage.
Use a flat screwdriver to remove the latch connecting the elevator to the cover plate.
Remove the lifter carefully and install it in situ .
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