Jack up all four wheels.
Model a brake rods.
Model a ford brake rod anti rattler mounting set 12 pieces for both anti rattler types part 28 22321 1.
Another good brake trick is to balance your brake rods to length.
This arrangement assures a fixed length rod and simplifies brake adjustments.
Adjust the rear brake rod clevises in the same manner.
The rods now have a single eye forged on each end in stead of having an adjustable clevis at one end.
Model a ford brakes and parts for your 1928 1931 model a.
Release hand brake lever.
The wheel is attached to the brake drum which inside are what is called brake shoes.
The fifteen are after the slop is taken up turn the brake rod eye so the pin just slips in.
Do the brake shoe to drum tightening before attaching the brake rod.
Model a ford service emergency brake rod set 6 pieces forged ends part 28 22318 1.
Front at the wheels and back at the cross shaft.
The 51 and a fraction length listed in the service bullitens was for the non adjustable brake rods on the early brakes.
You will need to disconnect all service brake rods where the adjustment is made.
Always be sure that all are loose as you do all four one at a time.
You can lock the rod clevice eye a bit out of plane with.
Place pin in clevis one at a time and adjust until pin snaps over brake arm.
The fifteen degrees is ideal but not set in stone as all cars have some different wear and characteristics.
Model a ford service emergency brake rod set 6 pieces forged ends part 28 22318 1 model a ford brake rod anti rattler mounting set 12 pieces for both anti rattler types part 28 22321 1 10 99 set.
Forget the 51 7 16 to 51 1 2 inch brake rod length as listed in the mechanics hand book.
See that wheels revolve freely.
Turn the adjusting wedge at each brake not the pull rod until the brake drags then back off the wedge 2 or 3 notches or just enough to allow the wheels to revolve without drag.
Make all adjustments with brakes cold.
It also eliminates the use of stops in the back.
There are two separate brake systems on the model a the four wheel service brakes and the emergency brake.