Toro 02103SL Rev A Reelmaster 2000 D Service Manual

Traction Circuit
Forward Direction
Reverse Direction
The traction pump is driven  by the engine through the
pulleys and pump drive belt.  The traction circuit of the
hydraulic system acts essentially as a closed loop. Tak-
ing its suction directly from the return side of the wheel
motors of the traction circuit, the traction pump supplies
oil flow to the wheel motors through the  supply side of
the traction circuit.
The traction circuit operates essentially the same in re-
verse as it does in the forward  direction. However, the
flow through the  circuit is reversed. When the  traction
pedal is pressed to the reverse position, the linkage from
the pedal positions the swash plate in the traction motor
so oil flows out the bottom port of the pump. Oil flow out
of the bottom port goes to  the wheel motors and turns
them in the reverse direction.
With the  engine running and  the traction pedal  in the
neutral position, the  traction pump supplies no flow  to
the wheel motors. When the traction pedal is pressed to
the forward  position, the linkage  from the pedal  posi-
tions the swash plate in the traction pump so oil flows out
the top port of the pump. Oil flow out of the top port goes
to the wheel motors and turns them in the forward direc-
tion.
Oil flowing out of the wheel motors returns to the top port
of the traction pump and is continuously pumped out the
bottom port.
The charge and shuttle valve circuits function the same
in reverse as they did in the forward direction.
If the optional 3 Wheel Drive Kit has been installed, the
pilot directional  valve in  the 3WD  selector valve  pre-
vents reverse flow to the rear wheel. As a result, there
is no 3WD in reverse.
Oil flowing out of the wheel motors returns to the bottom
port of the  traction pump and is  continuously pumped
out the top port.
A small amount of hydraulic oil leaves the traction circuit
through the bi–directional shuttle  valve in the front left
wheel motor. This oil is cooled as it flows through the oil
cooler and returns to the reservoir.
Filtered hydraulic  oil is  supplied to the  traction circuit
from the charge pump, through the lift control valve, and
back through the  charge circuit check valves.  This fil-
tered oil replaces oil losses from flow through the shuttle
valve and small amounts of  pump and motor leakage.
The charge pump and shuttle valve circuits allow for in-
direct cooling and filtering of the traction circuit.
If the optional 3 Wheel Drive Kit has been installed, the
3WD selector valve allows forward flow to the rear wheel
only when  the Reel  Engagement switch is  in the  ON
position. When the reels are switched on, the solenoid
in the 3WD selector valve is energized and shifted,  di-
recting hydraulic flow to the rear wheel motor.
Reelmaster 2000–D
Page 4 – 9
Hydraulic System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 208 pages
Document TypeService Manual
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
(1 votes, average: 5 out of 5)
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Toro 02103SL Rev A Reelmaster 2000 D Service Manual SKU UPC Model
Krista Renzo on Nov 19, 2016.

Really needed this manual. Amazing that Toro would make it so easily available. Full of details.


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