HYDRAULIC SYSTEM
6-75
D569-W02 May-2003
B. PRINCIPLES OF OPERATION
The steering device shall be operated by supplying the
operating oil in the transmission case to hydraulic fil-
ter and orbitrol unit by hydraulic pump 2 and operating
the steering cylinder to the direction that the operator
turns the handle.
(1) Gear Pump Assembly
(2) Power Steering Unit
(3) Steering Cylinder Ass’y
(4) Hydraulic Hose Ass’y (RH)
(5) Hydraulic Hose Ass’y (LH)
(6) Prior Valve Assembly
(7) Hydraulic Filter
(8) Transmission Case
6.2 STEERING DEVICE
A. SCHEMATIC DIAGRAM OF STEERING DEVICE
[A] PTO Clutch Valve
[B] Lift Line
[C] Flow Rate Gauge
[D] Pressure Gauge
C. DESCRIPTION OF COMPONENTS
1) Hydraulic filter: filtering of contaminated materials.
2) Hydraulic pump: to supply the constant flow of hy-
draulic oil.
- First Pump (hydraulic pressure rise & fall pump)
: 12 cc/rev
- Second Pump (steering operation pump)
: 7.2 cc/rev
3) Steering cylinder: rotating of front wheel by the re-
action of cylinder by orbitrol unit according to the
steering direction.
569W6A4A
www.mymowerparts.com
K&T Saw Shop 606-678-9623 or 606-561-4983
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