Backlap Front - Toro Reelmaster 5100-D Service Manual

Backlap (Front Shown)
During "backlap", the circuits operate the same as in the
"mow" mode except for the operation of solenoid valves
"S8" and "S9".
To backlap, solenoid valves "S8" and "S9" are energized
to direct flow to the reel motors so they will run in a
backwards or "backlap" direction. The electrical system
is designed so that only one circuit (front cutting units or
rear cutting units) can be operated when in the backlap
System Pressure
Low Pressure, Return or Case Drain
Oil Flow
to port D1
Front Ree l Motors
M4 M5
S8
VS1
S1
S7
R1
G1 3000 PSI
P1
Pump
Hydraulic Flow Diagrams
4 1
Front L ft Cyl nders i i
S3A
S4A
S3
R2
2000 PSI
T D1 D2
mode. To backlap the front cuttting units, solenoid
valve "S1" is energized allowing pressure to build in the
front reel circuit. When solenoid valve "S1" is energized,
variable solenoid valve "VS1" will direct part of the pump
flow to tank, while directing the remaining flow to sole­
noid valve "S8" and out to the front reel motors. Return
oil from the motors is directed to tank through valve "S8".
Solenoids Energized

Backlap Front

5
Rear Lift Cy nders li
2 3
Variable
Orifice
Rear Ree
Motors
S5A
S5
S4
S9
S6
S2
VS2
G2
Control Valve Block
P2
Pump
Figure 11
Page 4 - 10 Rev. A
S1,VS1, S8, S9
250 PSI Steering Cylinder
to port D2
l
M3
Steering
Pump
Reelmaster
Steering
Valve
®
5100-D