143H and 163H Motor Graders Air System and Brakes Caterpillar


Pressure Switch (Low Brake Air)

Usage:

143H 1AL



Illustration 1g00629637

Quantity ... 2

Switch Type ... pressure

Medium ... oil, fuel, or air

The pressure switch is used in air.

Operating Temperature Range ... -40 to +121 °C (-40 to +250 °F)

Maximum actuation pressure in the operating temperature range ... 640 kPa (93 psi)

Deactuation pressure in the operating temperature range ... 530 ± 40 kPa (77 ± 6 psi)

Contact Position ... normally open below deactuation pressure

Final Installation Torque for the pressure switch ... 30 ± 3 N·m (22 ± 2 lb ft)

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