In the event your actuator is with a technique that is ten several years old or more, then you may want to take into consideration some preventative action. This is solely a make a difference of view and choice.
The subsequent writeups and photographs are packaged to address the prognosis and if essential, the substitute of the unsuccessful Rotten Green Change – – aka the pump motor switch or RGS. Given that these memos were being prepared to deliver out separately in most cases, there may be some duplication in content.
This image can help most mentor owners identify numerous factors in their AutoPark parking brake program.
So, you have to securely chock the wheels, and jack up 1 rear wheel from the ground – – like that you may switch the driveshaft by hand. On any coach that has the different pump and reservoir (94/ninety five and later on), you'll need the ignition ON, but engine NOT Functioning – – Shift lever in NEUTRAL.
The really superior strain at some time ruptures the switch, and oil starts off trickling out previous the swap terminals. Sooner or later, all the oil will leak out along with the actuator will use the parking brake for lack of hydraulic strain.
Considerations: In case your actuator is by now leaking, or you recognize for sure it's been contaminated with brake fluid, then you'll have to consider motion to prevent AutoPark failure and feasible lockup of the parking brake.
Make on your own a U formed jumper with #12 or greater insulated wire (Within an unexpected emergency, a little something like a paper clip will do – – mindful while, as it may well get scorching and burn off your fingers).
Ideas cheerfully recognized. It absolutely sure seems to me just like the downward stress to the #4 interior valve is tremendously enhanced from the 1600 psi force of the pump. I problem whether or not the solenoid by alone could result a decent seal with out enable within the pump force. The #nine button remains to be a Why Not Try This Out bit of a secret
On a pretty typical foundation, I am asked to explain why AutoPark programs even exist. In a similar vein, many people request if they might change more than to an all guide technique – – both a foot pedal or hand lever kind, and disconnect the automatic utilize (AutoPark) part of the procedure.
The above information pretty much included what the RGS is, how it really works, and where by to locate it. Beneath, We now have inserted the writeup which describes the tactic employed for figuring out failure from the RGS.
This illustration displays how the configuration on the crimson lever has an effect on the cable movement. The geometry of the setup is this kind of that Should the blue cable moves about an inch, the purple cable will move about an inch and a quarter. This is significant to remember in almost any discussion of actuator vacation.
If the above information and facts is increasing some queries for yourself, Be happy to contact us for even further enlightenment. We've got several knowledge sheets on this subject – – pictures and so forth.
Here's an online source for the RGS – – aka the pump motor swap. This resource is described for being a useful spot for other GM elements likewise. The GM aspect range is 15961566. It can be stamped on the case. You can buy it online at: , I’m informed that Amazon has the better pricing
The RGS threads into a chunk that looks somewhat just like a hex pipe reducer. It's product of shiny gentle aluminum. 1 side of the reducer contains a three/8 – 24 woman thread into which the RGS screws. The opposite (male) finish screws to the pump human body alone. Numerous individuals have reported that they stripped the feminine thread in the process of putting in the new RGS, and also have Therefore uncovered it required to drill out the aged threads, and re-faucet the outlet to one thing bigger.