It should be emphasized that usually an actuator seal leak is something that begins smaller and grows. At some time, it Needs to be addressed, but It's not ordinarily something which comes about swiftly and causes quick highway failure or lockup from the parking brake.
So, you'll want to securely chock the wheels, and jack up just one rear wheel off the ground – – like that you are able to flip the driveshaft by hand. On any coach that has the separate pump and reservoir (94/95 and later on), you will need the ignition ON, but engine NOT Jogging – – Shift lever in NEUTRAL.
On previously designs, appear over the passenger side in the transmission close to the body rail, but a little aft of your tranny by itself. You'll want to begin to see the reservoir very easily, but will probably have to get rid of a sheet steel plate to begin to see the AutoPark system as well as the RGS. It appears like this:
You will find there's cable going in the brake drum towards the lever relay – – as depicted in the subsequent illustration from the lever arm assembly:
This deal consists of text, circuits and diagrams that explain an auxiliary dashboard warning light-weight technique. It operates independently of, and In combination with the normal AutoPark sprint light.
If the above data is raising some thoughts to suit your needs, Be at liberty to Get hold of us for even further enlightenment. We now have various facts sheets on this subject – – pictures etcetera.
4. Test the procedure to be sure that the footwear are certainly not dragging in the “brake launched” ailment, and which the AutoPark (PARK situation to the equipment shift lever) will adequately hold the mentor on an incline.
If you can see any proof of a leaking AutoPark actuator cylinder seal, get it mounted with the earliest chance.
This illustration exhibits how the configuration of your red lever impacts the cable motion. The geometry of the set up is these that In the event the blue cable moves about an inch, the crimson cable will shift about an inch and 1 / 4. This is significant to remember in any discussion of actuator journey.
This can be pretty easy – – This Look THESE Up first photo displays the necessary wrenches and placement for disconnecting the incoming hydraulic line (the actuator is on the bench top test stand).
Here's an online resource to the RGS – – aka the pump motor swap. This source is described to be a handy spot for other GM areas likewise. The GM aspect selection is 15961566. It truly is stamped on the situation. You can purchase it on the net at: , I’m advised that Amazon has the higher pricing
On all versions of AutoPark, there is usually a drum brake about the driveline – – appropriate behind the tranny. Altering it is very similar to undertaking the brakes on an older passenger car or truck.
The pretty high strain sooner or later ruptures the change, and oil begins trickling out earlier the swap terminals. Ultimately, all the oil will leak out along with the actuator will implement the parking brake for not enough hydraulic tension.
Poppet Valve – – A one way valve which is found in a very fitting just below the RGS. It is well and infrequently lost when eradicating the hex retainer that keeps it set up.