Toro 04130SL Rev C Service Manual Multi Pro 5700 D Preface Publication

Steering Circuit
A single section gear pump is coupled to the piston (trac•
tion) pump. The  gear pump supplies hydraulic  flow to
the steering control valve and the spray pump drive hy•
draulic motor.  Pump hydraulic flow is  delivered to the
two circuits through a flow divider with the steering cir•
cuit having priority. The gear pump takes its suction from
the hydraulic reservoir. Steering circuit pressure is limit•
ed by a relief valve located in the gear pump.
that flow goes through the top of the spool. Flow entering
the  steering control  valve  from the  gear pump  goes
through the spool and is routed through the rotary meter
(V1) and out the L port. Pressure extends the  steering
cylinder piston for a left turn. The rotary meter ensures
that the  oil  flow to  the cylinder  is proportional  to the
amount of the turning on the steering wheel. Fluid leav•
ing the cylinder flows back through the spool valve, then
to the oil cooler and returns to the reservoir.
The steering control valve includes a check valve that al•
lows steering operation when the engine is not running.
Steering wheel  rotation with the engine  off causes oil
flow from the steering control gerotor. The check valve
opens in this situation to allow oil flow from the steering
control to the steering cylinder in a closed loop.
The steering control valve returns to the neutral position
when turning is completed.
Right Turn
When a right turn is made with the engine running, the
turning of the steering wheel positions the spool valve so
that flow goes through the bottom of the spool. Flow en•
tering the  steering control  valve from  the gear  pump
goes through the spool and is routed through rotary me•
ter (V1)  but  goes out  port R.  Pressure contracts  the
steering cylinder piston for a right turn. The rotary meter
ensures that the oil flow to the cylinder is proportional to
the amount of the  turning on the steering wheel. Fluid
leaving the cylinder flows back through the spool valve,
then to the oil cooler and returns to the reservoir.
Hydraulic flow and pressure to the steering control valve
can be monitored at the outlet of the gear pump.
With the steering wheel in the neutral  position and the
engine running, gear pump flow enters the steering con•
trol valve (port P) and goes through the steering control
spool valve, by–passing the rotary meter (V1) and steer•
ing cylinder. Flow leaves the control valve (port T), to the
oil cooler, and returns to the hydraulic oil reservoir.
Left Turn
When a left  turn is made with the  engine running, the
turning of the steering wheel positions the spool valve so
The steering control valve returns to the neutral position
when turning is completed.
STEERING CYLINDER
PISTON MOVEMENT
STEERING CYLINDER
NO PISTON MOVEMENT
STEERING CYLINDER
PISTON MOVEMENT
R
L
L
R
L
R
T
P
STEERING
CONTROL
T
P STEERING
CONTROL
T
P
STEERING
CONTROL
NEUTRAL POSITION
LEFT TURN
RIGHT TURN
Figure 9
Hydraulic System
Page 4 – 10
Multi Pro 5700–D
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
Tags
Download File
Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step.
- 212 pages
Document TypeCatalog
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
(0 votes, average: 0 out of 5)

Submit your review (optional)
(will not be displayed)
* Required Field

Leave a Reply

Your email address will not be published. Required fields are marked *

*
*
Website