Identification of pressure switch operating range
Identification of pressure switch operating range
(OP)
I need assistance identifying the operating range of two pressure switches. They need replacing
They are made by a Japanese manufacturer WAKO , who I have tried communicating with but the language barrier is too hard.
The switches are discontinued . They are used in a Toyota wheel chair accessible vehicle. They are in the hydraulic circuit that lowers the vehicle.
The part is a PS-20 .
I have attached a photo of them . You can see the numbers stamped on the brass neck of the switch .
5 74
5X3 5X3
I am unsure if the identifying numbers stamped are universal if if they are specific to wako parts
If anyone can help it would be greatly appreciated
They are made by a Japanese manufacturer WAKO , who I have tried communicating with but the language barrier is too hard.
The switches are discontinued . They are used in a Toyota wheel chair accessible vehicle. They are in the hydraulic circuit that lowers the vehicle.
The part is a PS-20 .
I have attached a photo of them . You can see the numbers stamped on the brass neck of the switch .
5 74
5X3 5X3
I am unsure if the identifying numbers stamped are universal if if they are specific to wako parts
If anyone can help it would be greatly appreciated
Talk To Other Members
RE: Identification of pressure switch operating range
Determine the maximum system pressure.
Select a replacement that will take 150% to 200% of the maximum operating pressure.
Replace the pressure gauges with the new switches.
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Ohm's law
Not just a good idea;
It's the LAW!
RE: Identification of pressure switch operating range
http://www.wako-clinac.co.jp/product_en/ps-20_en/i...
This page gives an operating range for the switch that can be anywhere from 0.1 to 12 MPa (14 psig - 1740 psig). What the ACTUAL setpoint is can be determined through the method defined by waross.
Converting energy to motion for more than half a century
RE: Identification of pressure switch operating range
The 2 pressure switches control the cut of the hydraulic pump that lowers the suspension on the car .
I installed a pressure gauge on the pump as suggested by waross .
after running under caution to find operating cut out/in ,Unfortunately a seal on the shock absorber ( where the hydraulic oil is pumped to compress it) has had a seal let go in it .