AutoPark – – A parking brake method observed on some GM chassis which automatically applies a drum brake on the driveshaft. In the event the gear shift lever is place into PARK, this brake is automatically utilized.
Curiously, actuator repair seems being among the not many things which an proprietor could need some exterior aid to accomplish. Even then, the vast majority of repair course of action Is one area you'll be able to be involved in – – preserving about 90 % of the common expenditures for this work.
When these complications initially started exhibiting up below at the AutoPark Library (perhaps five decades ago), we might have a tendency to largely blame them on inappropriate adjustment in the situation change, and we connected fewer worth into the change/cam assembly lubrication. Along with the passing of your time nevertheless, We've arrive at think that the vast majority of the problems tend to be more very likely connected to the lubrication instead of the adjustment.
1. If you're able to’t fairly get to the change, you might choose a small paint brush and duct tape it to a adhere – – furnishing the essential further access. Get the comb liberally smeared up with a sticky grease like LubriPlate.
This course of action operates for most every one of the situations where by the valve is just sticky. More powerful solvents which include Chemtool B12 may fit much better than mineral spirits.
While your cylinder is becoming repaired, you do have a fantastic opportunity to vacant the previous ATF out in the AutoPark reservoir, and place in refreshing fluid. Use Dextron III or equivalent. You’ll will need a couple of quart for a refill.
2. It really is remotely feasible that the large fusible connection (60 amps or so) that protects the relay and motor, may very well be blown. We’ve under no circumstances seen this come about as however, but it should be considered. One particular could exam for this rather easily, by pulling the connector off from the relay, and checking for the existence of 12 volts on one of Visit This Website the two big  wires in the female connector.
Moreover, there is a lever arm in sequence with the cable method for AutoPark, and because of the configuration of the lever arm, once the actuator moves 1.25 inches, the cable visiting the brake drum may perhaps only go about an inch.
A question of agility: Some individuals claim that from the position of laying on their own backs, with their head before the remaining front tire, they will appear essentially straight up and find out the situation change – – but they're able to’t fairly reach it. Others have explained they CAN reach the switch by stretching.
This Auto Park parking brake versions I & II actuator illustration depicts the actuator with hydraulic strain applied — brake ON as well as the actuator with no hydraulic tension — brake OFF.
Whilst we’re persuaded that age is the key offender, we also know there are many situations in which brake fluid instead of ATF has long been place in to the AutoPark reservoir. Brake fluid is incredibly DISTRUCTIVE to the vast majority of rubber and polymer items that are normally present in units created for ATF (computerized transmission fluid).
This is a simple and cheap (fewer than 20 bucks in pieces) system that includes three little indicator lamps. Most any Do it yourself RV’er can Develop and put in it with no difficulty.
If the above information and facts is boosting some questions in your case, Be happy to contact us for more enlightenment. We have now several information sheets on this matter – – photographs and so on.
Get rid of the relay within the socket/connector. Identify the two terminals inside the connector that happen to be fed by the two Massive wires.