SUSPENSION SEAT 4Y5598 - Caterpillar

Illustration 4 g03434978
View of transmission control valve group
(1) Number 4 clutch control valve
(2) Number 5 clutch control valve
(3) Number 6 clutch control valve
(4) Number 7 clutch control valve
(5) Number 3 clutch control valve
(6) Number 1 clutch control valve
(7) Number 2 clutch control valve
(8) Transmission relief valveDifferential Lock
Refer to the following illustration for the location of the differential lock solenoid. The differential lock solenoid may be accessed by removing the belly guard under the tractor.
Illustration 5 g06217775
(1) Differential lock pressure tapBrake System
Service Brake System Pressure Test for Front Brakes
Illustration 6 g03469338
View of the engine compartment showing the left inside frame rail.
(1) Test port for the front service brakes.The pressure tap may be accessed by removing the belly plate from the engine compartment.Brake Accumulator Charging Valve
Illustration 7 g06217776
(3) Pressure tap for the brake accumulator charging valve. This test port is seen with the belly pan removed and looking from beneath the tractor up at the right frame.The pressure tap for the brake accumulator charging valve is located on the control manifold for the differential lock, brake, and hydraulic fan.Parking Brake
Illustration 8 g03720420
View as seen from below with the belly pan removed. Some hoses have been removed for clarity.
(4) Test port for the parking brakes.The pressure tap for the park brakes is located on the right frame of the tractor. The pressure tap is located on the control manifold for the park brake.Hydraulic System
Steering System
Illustration 9 g03718899
View of steering control valve
(1) Left turn HMU pressure
(2) Right turn HMU pressure
(3) Steering pump pressure
Illustration 10 g03718984
View of cushion-hitch frame
(4) Right turn steering cylinder pressure
(5) Left turn steering cylinder pressure
Illustration 11 g03719012
View of underside of the tractor in front of the differential housing
(6) Steering load sense pressureImplement System
Illustration 12 g03719177
View of implement pump control valve on the implement pump
(9) Implement load sense pressureCushion-Hitch System
Illustration 13 g03719252
View of cushion-hitch dampening valve
(11) Cushion-Hitch ride dampening pressure
(12) Cushion-Hitch ride dampening pressure
(13) Cushion-Hitch accumulator pressure
Illustration 14 g03719275
View of pilot manifold on the hitch assembly
(14) Cushion-Hitch pilot pressure
(15) Cushion-Hitch pump pressure