Right Turn (continued)
Without load sense flow, pressures on the ends of the steering priority valve
(EC1) start to equalize causing (EC1) to move toward its un-shifted “neutral”
position which directs the fluid needed to turn the machine to the steering valve.
Fluid is routed out manifold port ST, into steering valve port P, through the
steering valve spool, passes through the rotary meter and out the R port to the
steering cylinders. The rotary meter ensures that the fluid flow to the cylinders is
proportional to the amount that the steering wheel is turned. Fluid leaving the
cylinders flows back through steering valve L port, the valve spool, out the T port
and is then returned to the hydraulic reservoir. The steering valve returns to the
neutral position when the steering wheel is released or turning is completed.
Steering Relief Operation
When the steering cylinders reach the end of their stroke or if a wheel should
encounter an obstruction (e.g. a curb) while steering, the pressure in the steering
circuit will rise. When steering circuit pressure rises to approximately 20,684 kPa
(3000 psi), relief valve (RV1) in the main manifold opens and allows hydraulic
flow to return to the hydraulic reservoir. This action causes the spool of the
steering priority valve (EC1) to shift and send fluid away from the steering circuit
and to the traction charge and hitch lift circuits. Relief valve (RV1) controls the
action of the steering priority valve (EC1) and allows the valve to divert only
enough fluid flow to the steering circuit to maintain relief pressure.
Outcross 9060
Page 5–21
Hydraulic System: Hydraulic Flow Diagrams
18234SL Rev B
Содержание 07511AA
Страница 4: ...Reader Comments Page 4 Outcross 9060 18234SL Rev B ...
Страница 18: ...Safety Safety and Instructional Decals Page 1 10 Outcross 9060 18234SL Rev B ...
Страница 38: ...Specifications and Maintenance Special Tools Page 2 20 Outcross 9060 18234SL Rev B ...
Страница 96: ...Engine Service and Repairs Page 4 24 Outcross 9060 18234SL Rev B ...
Страница 208: ...Hydraulic System Service and Repairs Page 5 112 Outcross 9060 18234SL Rev B ...
Страница 294: ...Electrical System Service and Repairs Page 6 86 Outcross 9060 18234SL Rev B ...
Страница 361: ...Outcross 9060 Drawing 133 7829 Rev A Sheet 1 of 1 18234SL Rev B Page A 3 Hydraulic Schematic g259663 ...
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Страница 363: ...Outcross 9060 Drawing 122 1360 Rev 1 Sheet 2 of 3 18234SL Rev B Page A 5 Electrical Schematic part 2 of 3 g264054 ...
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Страница 365: ...Outcross 9060 Drawing 122 0923 Rev A Sheet 1 of 1 18234SL Rev B Page A 7 Wire Harness Drawing Frame g256296 ...
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Страница 367: ...Outcross 9060 Drawing 122 0922 Rev A Sheet 18234SL Rev B Page A 9 Wire Harness Drawing Platform g256443 ...
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Страница 370: ...Page A 12 18234SL Rev B Outcross 9060 Drawing 122 0921 Rev A Sheet 1 of 1 Wire Harness Drawing Engine g256294 ...
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Страница 372: ...Page A 14 18234SL Rev B Outcross 9060 Drawing 122 1045 122 1046 Rev A A Sheet 1 of 1 Wire Harness Headlights g259593 ...
Страница 373: ...Outcross 9060 Drawing 122 1245 Rev B Sheet 1 of 1 18234SL Rev B Page A 15 Wire Harness Cab Rooftop g256477 ...
Страница 374: ...Page A 16 18234SL Rev B Outcross 9060 Drawing 122 1260 Rev A Sheet 1 of 1 Wire Harness Cab Control Panel g256479 ...
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