CORE AS-AFTERCOOLER 3453471 - Caterpillar

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(13) Oil pressure sensor for the front service brakes (14) Oil pressure sensor for the rear service brakes (15) Check valve for the brake manifold (18) Brake manifoldIf the machine is equipped with the Vital Information Management System (VIMS), two oil pressure sensors will be located on brake manifold (18). Oil pressure sensor (13) is for the front service brakes. Oil pressure sensor (14) is for the rear service brakes.
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Left side view
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(5) Parking brake pressure switch (8) Parking brake control valveCheck valve (15) is in the drain line from the parking brake line. The oil also flows into parking brake control valve (8). Accumulator (10) also provides pressure oil for parking brake control valve (8). Pressure oil also flows to parking brake pressure switch (5) .When parking brake control valve (8) moves to the disengaged position, oil from the accumulator flows through parking brake control valve (8). The oil then flows to the parking brake. This causes parking brake (3) to disengage.
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Left side view
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Location of the parking brake (3) Parking brakeParking brake (3) engages automatically when the supply pressure from the accumulators drops below 6890 345 kPa (1000 50 psi). This causes parking brake pressure switch (5) to open.When the oil pressure increases to approximately 8270 kPa (1200 psi), parking brake pressure switch (5) closes. This stops the alarm for the Warning Category 3 if the transmission was in a forward speed position or in a reverse speed position. However, if the transmission was in NEUTRAL, the Warning Category 1 would stop. Parking brake limit switch (4) functions as an override switch for the transmission.Axle Oil Cooler
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Hydraulic schematic for the axle oil cooler (26) Screen group for the front axle (27) Screen group for the rear axle (28) Thermal bypass valve for the rear axle (29) Rear service brakes (30) Rear brake manifold (31) Front brake manifold (32) Front service brakes (33) Axle oil cooler for the rear axle (34) Axle oil cooler for the front axle (35) Thermal bypass valve for the front axle (36) Axle oil cooler pump for the rear axle (37) Axle oil cooler pump for the front axle (38) Steering pilot pump (39) The motor for the axle oil cooler (40) The ON OFF diverter valve for the axle oil cooler (41) The relief valve for the axle oil cooler system (42) Steering pilot relief valve (43) Pilot filter for the steeringAxle oil cooler pumps (36) and (37) circulate the oil which flows through both axle housings. When cooling for the axle oil is needed, flow from steering pilot pump (38) flows through the ON and OFF diverter valve (40) in order to drive the cooling motor (39). The cooling motor for the axle oil is mechanically connected to cooling pumps (36) and (37). Output flow from the motor of the axle oil cooler (39) flows to the pilot filter for steering (43) and relief valve (42) . Axle oil cooler pump (36) circulates the