The brake repair Diaries



The above mentioned drawing shows the drum in its good orientation Together with the adjuster at the very best in the backing plate – – more or less in keeping with the minor port you are able to see about the drum.

Around the Variation III devices (2001 and later), the relay is usually with a pigtail hanging down below the pump assembly, but occasionally it truly is mounted simply to the best in the pump motor. The pump on these more recent systems is situated up during the front with the coach, underneath the utility hood.

Leak down – – A situation whereby the AutoPark method tension is getting bled off due to some sort of leak.

The above mentioned information and facts pertains to the J71 AutoPark method utilized on coaches developed from about mid 94 and later on. When you have among the earlier units that runs off of the power steering method, allow me to know. That may be a totally diverse actuator. A lot more harmful to work on.

Apparently tho, this switch has no impact upon nearly anything else in the technique. Irrespective of whether it works or not, it essentially has no impact on the driveability on the coach. The exception to This is certainly When the switch develops a short to ground – – in which case it will blow the AutoPark fuse and you WILL get yourself a brake lockup. The shorts are rather exceptional tho – – Thankfully.

This doc is often a compilation of many separate compose-ups. What we’re seeking to do here is consolidate the necessary details essential for you to Website make an ample shoe adjustment (or shoe replacement) to your AutoPark parking brake assembly.

The Variation II coaches Have got a manually used foot pedal that may use the parking brake, along with the AutoPark method which can be connected to the gear shift lever – – i.e. PARK position on the change lever.

Spring across adjuster and two springs at The underside are what retract the footwear when brake is launched. Additionally they continue to keep some pressure within the cable in the event the brake is released.

Difficulties Using the control circuit, usually are not the main focus of the unique writeup. The purpose here, should be to both recognize, or absolve the relay as The explanation the pump isn't going to operate.

Ultimately and (we predict) extremely importantly, We have now a whole J71 Autopark process that has been transformed to your benchtop take a look at station. It's been modified which has a stress gauge and improvements within the valving and wiring which permit us to use it for demanding screening with the repaired cylinders.

Once the cylinder is pressurized, the piston compresses the spring. If the tension is taken off, the spring expands, AND pulls on a cable that applies the brake. I’ll ship an illustration that portrays this motion.

Hook your large pressure hose back again up for the back of your actuator, refill the reservoir once again, and you ought to be superior to go.

FIXING The situation: As mentioned higher than, we’ve begun to imagine that the lubrication may be additional crucial as opposed to adjustment. Since the lubrication procedure calls for no disassembly it's the less difficult task of The 2.

Leaking AutoPark actuator cylinders can nearly always be repaired at a little portion of substitution cost.

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