Yes, the shock aborber type cylinder on the left side of the machine next to the steer plate. It suppose to keep the truck from flipping, when elevating the mast. I guess it's all about terminology. Got it
well the maintenance manual states there is an accumulator held within that sas cylinder. the cylinder which i still don't know what to call other than a swing lock..? anyone?
The SAS cylinder is just a sealed hydraulic cylinder mounted between the steer axle and the frame and strokes as the steer axle articulates. It has a solenoid valve connecting the two chambers, in the cylinder, on each side of the piston in there. The solenoid is energized and open when everything is normal and the forklift is operating safely. If the SAS sensor detects that the lift is rocking to the side, and trying to roll over, it shuts off the solenoid valve and that locks the steer axle from rolling. It changes the forklift from a normal triangle 3 point stance to a square 4 point stance when it detects a rolling to the side danger. An accumulator on a lift cylinder is a shock absorber to cushion the hydraulics against sharp pressures generated in the system, like going over bumps with a heavy load or lowering the load and stopping quickly. It sort of adds some bounce rather than having a bang in the lift cylinder.
its the cylinder mounted between the rear axle and the frame it has a solenoid to lock it for toyotas sas safety system
So on this particular truck, is the accumulator internal or attached to the hoist cylinder? If not, can the truck be used w/out it?
anyone have a service manual from dess machine??
7777 yes you are right, this has a built in accumulator. what is the technical term for this sas cylinder?
I think I know what your refering to. I've known them to be called "an accumulator." It's a round, "bomb" looking device that helps keep the bounce off the forks when loaded w/ weight.
a gas shock is a charged cylinder. this swing lock cylinder may not hold any significant pressure until locked and pressure applied, but it is charged with fluid. toyota claims if you open it you cannot close it without air being trapped inside. maybe precharged was not the correct term.
Precharged? Can anyone explain? Have not come across one.
No problem. Sorry, I know they are expensive.
it is precharged non serviceable
Thanks rogeriwt. The cylinder is leaking.
To my knowledge there is no way to take it apart. I think that there is no pressure there just fluid and the valve closes and stops the fluid flow from one side to the other. What is the problem with it?