Brake band automatic transmission Nissan Bluebird
The automatic transmission brake band is responsible for transmitting torque from the drive pulley to the driven disc. The Nissan Bluebird automatic transmission uses one brake band, which works with 2nd and reverse gears.
Location and device
The brake band is located inside the automatic transmission housing, between the drive and driven pulleys. It is a flexible metal strip with a friction lining on the inner surface.
Operating principle
When it is necessary to transfer torque to 2nd or reverse gear, the solenoid valve transmits hydraulic pressure to the piston, which in turn acts on the lever. The lever pulls the brake band, which clamps the driven pulley between the drive pulley and the housing. This prevents the driven pulley from slipping and ensures transmission of torque.
Malfunctions
The most common malfunctions of the automatic transmission brake band are:
* Friction lining wear
* Tape stretching
* Damage to lever or piston
*Hydraulic fluid leak
Symptoms
Symptoms of a faulty brake band may include:
* 2nd or reverse gear slipping
* Difficulty shifting into 2nd or reverse gear
* Hydraulic fluid leaks from the automatic transmission housing
Diagnostics and repair
Diagnosing a faulty brake band typically involves checking hydraulic pressure, inspecting the band for wear or damage, and checking the condition of associated components.
Repairing the brake band requires removing the automatic transmission and disassembling it. The tape and other damaged components are replaced with new ones. After repairing the automatic transmission, it is necessary to flush it, replace the hydraulic fluid and filter.
Maintenance
To extend the life of your brake band, it is important to regularly service your automatic transmission, including:
* Timely replacement of hydraulic fluid and filter
*Checking hydraulic pressure
* Diagnosis and elimination of fluid leaks