Loads of the AutoPark literature displays the adjuster being for the six o’clock posture but All people I’ve at any time talked to claims it really is at twelve o’clock.
For that reason, a few of the scale we will likely be making use of are likely to be approximations. When not excellent, they will be properly within the restrictions of accuracy required to clarify the workings from the procedure.
Sort III procedure – – Uncovered on chassis built between (approx) mid 1998 and 2007. Much like Sort II but lacks the handbook foot pedal for software on the parking brake. Contains a yellow thrust-pull knob within the dashboard.
The above mentioned details pertains into the J71 AutoPark process employed on coaches designed from about mid ninety four and later. For those who have considered one of the sooner units that runs off of the power steering process, allow me to know. That is a completely distinctive actuator. Extra dangerous to work on.
This is often an idiot light-weight in the very best (or worst) perception. You will need to know a great deal with regards to the technique to even interpret exactly what the hell it means if it is OFF, or ON. Just the identical, it is regarding the ONLY indicator you have that may Maybe tell you something about what the AutoPark procedure is doing.
You will find there's cable going from the brake drum to your lever relay – – as depicted in the following illustration on the lever arm assembly:
The following webpage illustrates the basic operation on the actuator, which is essentially the “heart” with the AutoPark procedure.
25 inches, plus the actuator shaft will move to the actuator (to the appropriate as seen in the image), about 1.twenty five inches. Because the TOTAL journey of the disconnected actuator is about two.0 inches, Therefore we will have a “preload” about the massive spring of about .seventy five inches. Put simply, if one particular were to chop the cable underneath the BRAKE ON condition, Have A Peek At This Website the actuator shaft would snap back again to the actuator yet another .seventy five inches. It Is that this preload which makes it rather challenging and risky to disconnect the cable at the lever relay clevis when the cable is below this preload stress. You can discover a warning to that result within the illustration above.
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Transfer bar (dunno what it really is correctly called) moves into the left and transfers motion from place B to position A pushing out the still left hand shoe
Right here is a crucial point You should look at before you start this method: If You begin working on this Along with the brake Used, There exists gonna be a great deal of rigidity on the cable, along with the actuator shaft – – The massive spring from the actuator is pulling really hard over the shaft and cable to apply the brake. I’m sending you A different illustration (you must print this one particular as well so you're able to study it when you read through this). It is a easier illustration compared to the pdf one that I despatched a little bit in the past. If you actually analyze and memorize this page, you’ll know all the basics about how your AutoPark works. This is a significant protection situation right here: So as to acquire this actuator out of the motorhome, you will need initially to have the cable disconnected.
At the top of the picture, the shoe finishes are going to be bearing on the adjuster, and will pivot on All those finishes once the brake is applied.
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