Hi, strange question,
They don`t have to lock, But the service brake readings, rear combined with the front wheel brake readings have to Exceed 50% of the specified weight of the vehicle.
The Parking brake readings on a Dual Circuit braking system, Have to Exceed 16%, of the specified weight unless Both rear wheels Lock. lol.
You don`t specify Service Brake or Parking Brake,
Adjustment should be auto, but sometimes You need to encourage the sprung loaded wedge system to work.
Hope this helps,
Regards, Wes.
Last edited on Tue Nov 6th, 2007 11:28 pm by Wesley
|