RING-DRIVE 8L5097 - Caterpillar

Illustration 17 g02712061
(11) Accumulator pressure switchPressure switch (11) is for the accumulator for the front and rear service brakes. The location of the pressure switch (11) is shown above.If 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.
Illustration 18 g02696897
Left side view
Illustration 19 g02696916
(5) Parking brake pressure switch
(8) Parking brake control valveParking brake release check 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.
Illustration 20 g01439110
Left side view
Illustration 21 g02712041
Location of 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 action 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
Illustration 22 g06155557
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