RELAY 3978113 - Caterpillar

3978113 RELAY Caterpillar parts 3512C

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Alternative (cross code) number:
CA3978113
397-8113
3978113

Weight: 0.33 pounds 0 kg.

Buy RELAY 3978113 Caterpillar genuine, new aftermarket tractor parts with delivery
LOCOMOTIVE ENGINE,

Compatible equipment models: 3978113:

LOCOMOTIVE ENGINE 3512C Caterpillar

Number on catalog scheme: 15

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Information:

Illustration 1 g01065642
Location of the Two Brake Accumulators
Illustration 2 g00428660
Brake Accumulator (1) Nitrogen charging valve. (2) Accumulator. (3) Nitrogen gas charge. (4) Piston. (5) Pressure oil chamber. (6) Outlet to the service brake control valve.Piston (4) moves up and down inside the bore of each accumulator (2). Chamber (3) has a charge of approximately 5515 kPa (800 psi) of dry nitrogen gas. Each accumulator is charged with nitrogen through charging valve (1) . Oil enters pressure oil chamber (5) from the brake pump. The oil reaches the pressure oil chamber through outlet port (6). The oil pushes piston (4) upward. The pressure of the oil compresses the nitrogen gas.When the pressure in the accumulators reaches approximately 16000 345 kPa (2320 50 psi), the supply of oil is stopped. When either brake pedal is pushed, oil from pressure oil chamber (5) flows out of port (6) to the service brake control valve. This applies the service brakes.