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Re: emergency brakes on mercedesbenz struck how can what...
Reach under at back wheels grab the cables an wiggle them that may work if it is a cable issue. if you have calipers in the rear and the cables go to them try prying back the lever in the opposit direction of the cables
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I will try to give you a heads up on this job. The hard part is the emergency brakes hidden inside the rear rotors. You need to get slack from the self adjusters on the brake cable where the cable spools up under the dash on the emergency brake activator. Once you get a little slack, then you can shove the emergency brake levers to their neutral position. This will create slack inside the emergency brake drum and allow you to remove the rear rotor like you normally would for a front rotor. Otherwise the emergency brakes will create problems for removing the rotors.
If you have only worked on front rotors, the rear set is more difficult due to the emergency brakes. Get high quality replacement linings for the emergency shoes. Get new pins and mounting springs to secure the linings to the housing.
You may find some good Youtube videos for this repair. Or you may be better off to do the fronts yourself and take it in for the rear set. Realize there are more parts to buy for the rear since there are 2 sets of brakes back there. I do not like this system because it is not durable and the drum portion rusts to the point of uselessness. If you find a company to give a lifetime warranty for this repair you would be ahead.
When replacing a Peugeot 207 rear wheel brake cylinder, the Workshop Manual recommends that once the drum has been removed, the brake pipe disconnected from the cyclinder, and the cylinder retaining bolt removed, the upper brake shoe return spring should be removed to allow the cyclinder to be withdrawn from its mounting position.
It is not neccessary to remove the upper brake shoe return spring (tricky to do and even more difficult to put back) - just raise the handbrake (emergency brake) lever a few clicks until the ends of the brake shoes are clear of the cylinder. The cylinder can then be manoeuvred over the upper return spring.
there is a lever attached to a shoe that activates on the notched wheel of the adjuster bar. The same notched wheel that is used to adjust the brakes through the back or drum. When the shoes moves from the braking action the spring pulls the lever and turns the notched wheel. this is repeated every time the brakes are applied until there is a position where the lever cannot get into the next notch.Any drum brake set up with automatic brake adjustment will look the same so any chev manual will show how to put it together.
Over here we call it a parking brake - hardly any of our cars are autos.
Parking brakes usually connect to the rear disc brake calipers but some manufacturers use a small drum brake in the disc centre for parking purposes due to the complexity of the caliper with integral parking brake.
When adjusting a parking brake it is important in most designs for the cable to be adjusted only to remove any free play without moving the caliper levers from the backstops and then if the parking brake lever or pedal travel is excessive it must be because of wear or other faults. Sometimes that basic requirement must be taken with a pinch or two of "experienced" salt...
Ford have a self adjusting parking brake I have experience of. A spring within the system preloads the cable eliminating all slack in the cable so the cable moves the caliper levers from the first. The main problem with the system is the preload spring is sometimes strong enough to overcome the resistance of the caliper spring and cause a binding brake. No manual adjustment was provided.
In that case I find fabricating and fitting brackets to anchor additional return springs to the calipers is a must.
check teh switch, located under the dash, and is touched by the brake lever, also, back brake adjustment and emergency brake cable adjustment (in that order) can cause the parking break lever to not fully return and activate the switch.
Also, Ford uses this light to indicate low brake fluid level. There is a switch on or near the fluid reservoir.
Get a replacement parking brake lever on ebay or at a local junkyard. 92-99 SL1 & SL2 all the same part. Most likely your cables are corroded and frozen so be prepared to get some new cables at a parts store when you go to install your replacement brake lever.
I don't know if I can explain this correctly but I'll try. Some cars that have a foot peddle that activates the emergency brake when foot peddle is compressed. If there is not a brake release handle directly above the peddle, it might have a kind of spring release. Try pressing down on the peddle hard and then move your foot off and out of the way and it might spring back and release that way.
I had the same problem on my 2003. Open the driver door all the way. Get on your knees just outside the door. Follow the plastic tub that holds the parking brake release cable inside the truck. Start from the release lever and follow to the end of the tube. There will be a metal lever that the cable was attached to before it broke. You have to pull that lever with your hand to release the parking brake. Very Important!!!...Hold the parking brake activation pedal with your other hand when you release the brake. Let the pedal out slowly when you pull the metal release lever. The pedal will come back very fast and you could injure yourself if you are not careful. Good luck!
REMOVAL & INSTALLATION If
you are not thoroughly familiar with the procedures involved in brake
replacement, only disassemble and assemble one side at a time, leaving
the other wheel intact as a reference. 1983-88 Vehicles See Figures 1, 2 and 3
Raise and safely support the rear of the vehicle with jackstands.
Remove the tire and wheel assembly.
Remove the brake drum, as outlined earlier in this section.
Place Brake Cylinder Clamp D81L-1103-B or equivalent, over the ends of the brake cylinder.
CAUTIONBe careful that the springs do not slip off the tool during removal, as they could cause personal injury.
the shoe-to-anchor springs, using Brake Shoe R and R Spring BT-11, or
equivalent, then unhook the cable eye from the anchor pin.
1: Place the brake clamp tool over the ends of the wheel cylinder, then
remove the shoe-to-anchor springs using the correct tool
Remove the shoe guide (anchor pin) plate.
Remove the shoe hold-down springs, shoes, adjusting screws, pivot nut, socket and automatic adjustment parts.
Remove the parking brake link, spring and retainer. Disconnect the parking brake cable from the parking brake lever.
removing the secondary brake shoe, disassembly the parking brake lever
from the shoe by removing the retaining clip and spring washer.
Fig. 2: View of the drum brake components-1983-88 9-inch brake shownFig. 3: View of the drum brake components-1983-88 10-inch brake shownTo install:
brake cable must be connected to the secondary brake shoe before the
shoe is installed on the backing plate. To do this, first transfer the
parking brake lever from the old secondary shoe to the new one. This is
accomplished by spreading the bottom of the horseshoe clip and
disengaging the lever. Position the lever on the new secondary shoe and
install the spring washer and the horseshoe clip. Close the bottom of
the clip after installing it. Grasp the metal tip of the parking brake
cable with a pair of pliers. Position a pair of side cutter pliers on
the end of the cable coil spring, and using the plier as a fulcrum,
pull the coil spring back with the side cutters. Position the cable in
the parking brake lever.
Apply a light coating of high
temperature grease to the brake shoe contact points on the backing
plate. Position the primary brake shoe on the front of the backing
plate and install the hold-down spring and washer over the mounting
pin. Install the secondary shoe on the rear of the backing plate.
Install the parking brake link between the notch in the primary brake shoe and the notch in the parking brake lever.
Install the automatic adjuster cable loop end on the anchor pin. Make sure the crimped side of the loop faces the backing plate.
the return spring in the primary brake shoe and, using the tapered end
of the brake spring service tool, slide the top of the spring onto the
CAUTIONBe careful to make sure that the spring does not slip off the tool during installation, as it could cause injury.
the automatic adjuster cable guide in the secondary brake shoe, making
sure the flared hole in the cable guide is inside the hole in the brake
shoe. Fit the cable into the groove in the top of the cable guide.
the secondary shoe return spring through the hole in the cable guide
and the brake shoe. Using the brake spring tool, slide the top of the
spring onto the anchor pin.
Clean the threads on the adjusting
screw and apply a light coating of high temperature grease to the
threads. Screw the adjuster closed, then open it 1/2 turn.
the adjusting screw between the brake shoes with the star wheel nearest
to the secondary shoe. Make sure the star wheel is in a position that
is accessible from the adjusting slot in the backing plate.
Install the short hooked end of the automatic adjuster spring in the proper hole in the primary brake shoe.
the hooked end of the automatic adjuster cable and the free end of the
automatic adjuster spring in the slot in the top of the automatic
Pull the automatic adjuster lever (the lever
will pull the cable and spring with it) downward and to the left and
engage the pivot hook of the lever in the hole in the secondary brake
Check the entire brake assembly to make sure that
everything is installed properly. Make sure that the shoes engage the
wheel cylinder properly and are flush on the anchor pin. Make sure that
the automatic adjuster cable is flush on the anchor pin and in the slot
on the back of the cable guide. Make sure that the adjusting lever
rests on the adjusting screw star wheel. Pull upward on the adjusting
cable until the adjusting lever is free of the star wheel, then release
the cable. The adjusting lever should snap back into place on the
adjusting screw star wheel and turn the wheel one tooth.
Expand the brake adjusting screw until the brake drum will just fit over the brake shoes.
Install the brake drum and wheel and tire assembly, then adjust the brakes.