ATTENTION: All Postings that advertise items for sale will be deleted from the Discussion Forum. You may post sale items for free in the Classifieds section. Sign up now.
I have a 1977 pace arrow M500 on a dodge chassis. The parking brake is a driveshaft type and it doesn't grab. Do they still make parts for these brakes or is there maybe an adjustment that can be done. I can look up inside the housing when the cable is pulled and everything looks to be working right. I have never dealt with this type of brake before, but it doesn't look very difficult to repair.
Several adjustments can be made. First, with the brake released, crawl under the rig and look at the clearance between the drum and lining,look at the thickness of the lining while you are at it, and if the thickness is uniform, grap the band and center it if need be. There should be clearance between the drum and lining all the way around, this clearance should only be around.025" to the.03125, (thickness of a worn dime). If the clearance is more than that, then go over to the open side of the brake band. You'll see the activation linkage that goes through both ends of the band, as well as a small bolt that has a nut and a "jam", (lock nut), nut on it.This is how you adjust the drum to lining clearance. This will only adjust the toe clearance. If the band doesn't appear to be centered as you are making this adjustment, go back to the other side of the lining. You should see a horizontal adjustment bolt that will allow you to make the centering adjustment. After you have done/checked all this, go into the rig and set the brake. You should have to expend a little effort to pull the control lever up. If not, then attempt to turn the end of the control lever clockwise. If it will not turn, then try turning it counter clock-wise. If you could not turn it clock-wise, it means that this adjustment is at the limit of its travel. If you do manage to turn it clock-wise, then make a turn or two and then pull up on the control lever to set the brake. Continue with this adjustment until you feel a definite resistance before the lever goes over center and locks up in place. Never try to use this as an emergency brake by jerking the handle up.
email Jeff
reply to message
post new message
search forums
