Toro GrandStand 74504TE - Bleeding the Hydraulic System

TORO®- Grandstand Service Instruction Manual6-2
6
HYDRAULIC DRIVE SYSTEM
Speed Setting Procedure
Tracking Procedure
*Goal is to match the Forward speed of 10 MPH and
reverse speed of RH control.
Set Engine RPM to 3600 RPM.
Adjust RH control rod to ensure forward ground speed
of 10 MPH.
• Hub RPM = 175 RPM
• RH turn of control rod to reduce speed
• LH turn of control rod to increase speed
Move RH control to Forward position and record
ground speed.
Move RH control to Reverse position and record
ground speed.
Move LH control to Forward and Reverse positions,
record speeds.
• Both Forward and Reverse speeds greater than
RH, Reduce Pivot Radius.
• Both Forward and Reverse speed less than RH,
Increase Pivot Radius.
• Forward speed of LH is greater than RH,
Shorten Control Rod, RH turns.
• Forward speed of LH is less than RH,
Lengthen Control Rod, LH turns.
NOTE: Each revolution of the control rod should
equate to approximately ~.25 MPH. (4.35
RPM. Full extension or reduction of the
pivot radius from nominal will adjust speed
(Figure 28, 29 and 30) ~+/-1 MPH. 1 Wheel
RPM = .0572 MPH. or 175 RPM = 10 MPH
Reduce Pivot Radius
Increase Pivot Radius
Rear View of Controls
Short Control Rod,
RH Turns
Lengthen Control
Rod,
LH Turns
Figure 30
Figure 28
Figure 29