CAT 970F Wheel Loader Hydraulic System Schematic Manual - PDF DOWNLOAD

SENR6634-01 November 1993

970F (7SK224-UP) HYDRAULIC BRAKE SCHEMATIC NO. COMPONENT 1 REAR AXLE 2 BRAKE CONTROL VALVE 3 PARKING BRAKE ACTUATOR 4 FRONT AXLE 5 REAR AXLE BRAKES ACCUMULATOR 6 FRONT AXLE BRAKES ACCUMULATOR 7 ACCUMULATOR CHARGING VALVE 8 PARKING BRAKE CONTROL VALVE 9 LOW BRAKE OIL PRESSURE SWITCH 10 PARKING BRAKE SWITCH A WIRE TO BRAKE LIGHTS B WIRE TO TRANSMISSION NEUTRALIZER CONTROL C LINE FROM PILOT PUMP D RETURN LINE TO HYDRAULIC TANK E WIRE TO LOW BRAKE OIL PRESSURE ALERT INDICATOR F WIRE TO TRANSMISSION CONTROL

970F Wheel Loader Hydraulic System 7PL1-UP 7SK1-UP 9JK1-UP

© 1993 Caterpillar All Rights Reserved

SENR6634-01 6 Page, UHE

Printed in U.S.A.

NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 A * ** ***

SENR6634-01 6 Page, UHE

970F HYDRAULIC SCHEMATIC COMPONENT PRESSURE CONTROL AND SELECTOR VALVE LOCKOUT VALVE PILOT CONTROL VALVES TILT CYLINDER LIFT CYLINDERS RIDE CONTROL OIL ACCUMULATOR RIDE CONTROL SOLENOID VALVE MAIN CONTROL VALVE SHUTTLE VALVE MAIN RELIEF VALVE LEFT STEERING CYLINDER RIGHT STEERING CYLINDER HYDRAULIC OIL COOLER METERING PUMP (STEERING) LEFT NEUTRALIZER VALVE STEERING MAKEUP VALVE STEERING CONTROL VALVE HYDRAULIC PUMP GROUP PILOT RELIEF VALVE** PRESSURE REDUCING VALVE*** CHECK VALVE* FLOW SWITCH RIGHT NEUTRALIZER VALVE VENT VALVE FILTER GROUP HYDRAULIC TANK FLOW SWITCH* SUPPLEMENTAL STEERING DIVERTER VALVE SUPPLEMENTAL STEERING PUMP LINE TO BRAKE SYSTEM EUROPE ONLY WITH AIR OVER HYDRAULIC BRAKES ONLY WITH HYDRAULIC OVER HYDRAULIC BRAKES ONLY