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BLADE & EDGE 4Z9135 - Caterpillar



4Z9135 BLADE & EDGE Caterpillar parts BLADE
Rating:
21
Alternative (cross code) number:
CA4Z9135
4Z-9135
4Z9135
Caterpillar 4Z9135 BLADE & EDGE
Weight: 4 pounds 1 kg.

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Illustration 1 g03873559
Hydraulic schematic for the steering system
(1) Steering cylinder
(2) Steering cylinder
(3) Implement and steering solenoid valve
(4) Portable hydraulic pump quick connect coupler
(5) Brake accumulator charging valve
(6) Steering cylinder crossover relief valve
(7) Steering cylinder crossover relief valve
(8) Parking brake solenoid valve
(9) Steering control valve
(10) Secondary steering pump
(11) Spool
(12) Line to braking system
(13) Line to parking brakes
(14) Portable hydraulic pump quick connect coupler
(15) Check valve
(16) Steering system pressure tap
(17) Secondary steering diverter valve
(18) Primary steering flow switch
(19) Steering neutralizer valve
(20) Oil cooler
(21) Check valve
(22) STIC steering pilot valve
(23) Line from implement lift circuit
(24) Pilot oil filter
(25) Steering neutralizer valve
(26) Selector and pressure control valve
(27) Dual pilot check valve
(28, 29) Check valve
(30) Pilot system pressure tap
(31) Pilot relief valve
(32) Breaker relief valve
(33) Secondary steering flow switch
(34) Hydraulic oil temperature sensor
(35) Hydraulic oil level sensor
(36) Hydraulic filters
(37) Hydraulic tank
(38) Pilot and braking pump
(39) Steering pump The optional secondary steering system has two purposes:
Supplies steering oil should steering pump (39) fail, or the engine stops while the machine is moving.
Adds oil to the steering pump flow when the engine rpm is low, and the machine is moving.Secondary steering pump (10) is mounted to the front of the output transfer gears. The secondary steering pump is a ground speed driven pump that turns when the machine is moving.Secondary steering diverter valve (17) is mounted on the right side of the rear frame near hydraulic tank (37).Primary steering flow switch (18) is mounted to secondary steering diverter valve (17).Secondary steering flow switch (33) is mounted to hydraulic tank (37).With the engine running, oil from steering pump (39) flows past primary steering flow switch (18) to secondary steering diverter valve (17). Oil from steering pump (39) moves the paddle of primary steering flow switch (18). When the paddle moves, the contacts in primary steering flow switch (18) will close and the primary/secondary steering indicator will be off. Oil then flows through secondary steering diverter valve (17) to steering control valve (9). The oil flowing from steering control valve (9) is used to operate steering cylinders (1) and (2).If steering pump (39) fails there will be a loss of steering oil flow. The contacts in primary steering flow switch (18) will open. A signal will be


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