SERV1851 02/08
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Text Reference Travel System
TRAVEL SYSTEM
TRAVEL COMPONENTS - NEUTRAL
Left Travel Motor
Right Travel Motor
To Swing Valve
Left Travel Valve
To Swing Valve
Right Travel Valve To Boom 1 Valve
Main Relief Valve Straight Travel Valve
Parallel Feeder Passage From Idler Pump Left Forward
Right Forward
Left Reverse
Right Reverse
From Drive Pump From Pilot Pump
Travel Speed Solenoid
Travel Pilot Valves
Pilot Manifold
162
Travel System Components The idler pump and drive pump supply oil flow to the travel control valve group, which controls pump flow to the two travel motors. With the travel control valves in NEUTRAL, pump supply oil from the pumps flows though the center bypass valve through all other control valves to the NFC valves. The return oil from the pumps creates NFC signals to destroke the pumps. Pilot oil is available at the two speed travel solenoid valve. Since the implement hydraulic lockout solenoid has been energized, the hydraulic activation valve has shifted. Pilot oil is directed to the travel pilot valves.
