Table of Contents
- 1 What does adjusting the bands on a transmission do?
- 2 How do transmission bands work?
- 3 What is a transmission brake band?
- 4 How do you tighten a 47re band?
- 5 What does the kickdown band do?
- 6 What would be the effect of a faulty band adjustment?
- 7 How do you adjust a brake band?
- 8 How much transmission fluid does a 47RE hold?
- 9 What fluid does a 47RE take?
- 10 Does a TH400 have a kickdown cable?
- 11 When should you use kickdown?
- 12 How do you adjust the bands on a trans transmission?
- 13 Are there any external band adjustments on the TH350?
- 14 What are transmission bands and why are they important?
What does adjusting the bands on a transmission do?
A band that is adjusted too tightly will displace the fluid that prevents friction material loss. Constant contact with the spinning drum also occurs, and both the drum and band can become glazed to the point where a partial overhaul is necessary. For those reasons, bands are adjusted in small, precise increments.
How do transmission bands work?
Transmission bands are steel bands that wrap around sections of the gear train and connect to the housing. As the band tightens around the drum, transmission fluid is squeezed out into grooves cut into the band’s surface. The band brings the drum to a stop and holds it there.
What is a transmission brake band?
Automatic Transmission Brake Bands are flexible steel plates lined with organic (cellulose) or semi-metallic friction material. The lining absorbs transmission fluid to aid in heat dissipation. Hydraulic pressure moves the brake servo.
How do you tighten a 47re band?
Locate the front band adjustment screw on the driver side of the transmission just forward of the transmission range selector linkage. Loosen the locknut using a 3/4″ socket and back off 3 to 5 turns. Tighten the adjustment screw by rotating it clockwise with a 5/16″ square drive socket.
What does the kickdown band do?
Although the name implies that it should “kick down” gears, the primary role of this component is to shift up into higher gears as the vehicle accelerates. It comprises of rubber and metal and is attached in the transmission and will engage when a gear shift is about to occur.
What would be the effect of a faulty band adjustment?
If the powerglide band is not adjusted properly the following things can occur: Band failure (burning of clutch material) Slipping in low gear or no low gear function at all. Shift flare between low and high gears.
How do you adjust a brake band?
Release the hand brake, gradually loosening the adjustment screw of the brake band and wait until the car starts rolling; Tighten the adjustment screw by 2-3 turns (the number of turns is determined experimentally for a specific car until there won’t be any jolts during gear shifting).
How much transmission fluid does a 47RE hold?
Fill the transmission with new ATF through the dipstick tube. The service refill capacity on the 47RE and 47RH transmissions is approximately 4 quarts, but this is only an estimate. Reinsert and check the fluid level frequently as you add fluid to prevent overfilling.
What fluid does a 47RE take?
For factory 47RE I would stick to the ATF+4. Modified transmissions tend to be able to tolerate the ATF+3 because of the different clutch material that some rebuilders use.
Does a TH400 have a kickdown cable?
Instead of a linkage or cable, the TH400 uses an electrical switch that is most often mounted on the carburetor. The factory used a switch located on the carburetor or on the throttle linkage under the dash that at WOT supplied voltage to the transmission.
When should you use kickdown?
Kick-downOnly possible with automatic gearbox. is used when maximum acceleration is needed, such as for overtaking. When the accelerator pedal is pressed all the way to the floor (beyond the position normally regarded as full acceleration) a lower gear is immediately engaged. This is known as kick-down.
How do you adjust the bands on a trans transmission?
Transmission Band Adjustment – Tighten the Bands! In some transmissions, part of the operating controls include “bands”: metal straps with friction material on one side. When applied, the bands tighten around drive components to hold them in place. To apply exactly right, those bands needed to be adjusted properly.
Are there any external band adjustments on the TH350?
*No external band adjustments on TH350, TH400, 2004R, 700R4. *No external band adjustments on AOD.
What are transmission bands and why are they important?
The technical answer goes like this: In some transmissions, part of the operating controls include “bands”: metal straps with friction material on one side. When applied, the bands tighten around drive components to hold them in place. To apply exactly right, those bands needed to be adjusted properly.