Toro 20330 Service Manual - Page 89

Handle Controls

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BBC / BOS / BCS The normal or "at rest" position of the control bar is indicated by the number 1 in the Figure 148. In order to engage the blade, the operator must first "cock" the control bar down to position 2, then raise the control bar to position 3. Handle Controls The control box components and their functions (Fig. 149) are described below. Fig 148 fig 27 Notice that position 3 is approximately 5" (12cm) below the handle. This distance between position 3 and the handle is reserved for engagement of the transmission on those models equipped with self-propel. On units without self-propel, the control bar can be lifted to the handle without affecting operation of the BBC system. After engagement of the blade, release of the control bar disengages the blade and, on self-propel models, the transmission. By gradually releasing the control bar, the operator can regulate the ground speed of self-propel models without disengaging the blade. Fig 149 fig. 28 a. Left Control Housing: serves as the cover for the BBC control mechanism. It also houses the end of traction and BBC cables. b. Control Bar: pivots on upper shoulder bolt. Transfers operator inputs to control box components. c. Traction Cable: engages the transmission by transferring inputs from the control box. The transmission is engaged when the cable is tightened; disengaged when the cable is loosened. d. BBC Cable: transfers inputs from the control box to the BBC deck mechanism. WPM Drive Systems Manual 6-3

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6-3
WPM Drive Systems Manual
BBC / BOS / BCS
The normal or “at rest” position of the control bar is
indicated by the number 1 in the Figure 148. In order
to engage the blade, the operator must first “cock” the
control bar down to position 2, then raise the control bar
to position 3.
Fig 148
fig 27
Notice that position 3 is approximately 5” (12cm) below
the handle. This distance between position 3 and the
handle is reserved for engagement of the transmission
on those models equipped with self-propel. On units
without self-propel, the control bar can be lifted to the
handle without affecting operation of the BBC system.
After engagement of the blade, release of the control bar
disengages the blade and, on self-propel models, the
transmission. By gradually releasing the control bar, the
operator can regulate the ground speed of self-propel
models without disengaging the blade.
a.
Left Control Housing:
serves as the cover for the
BBC control mechanism. It also houses the end of
traction and BBC cables.
b.
Control Bar:
pivots on upper shoulder bolt. Transfers
operator inputs to control box components.
c.
Traction Cable:
engages the transmission by trans-
ferring inputs from the control box. The transmission
is engaged when the cable is tightened; disengaged
when the cable is loosened.
d.
BBC Cable:
transfers inputs from the control box to
the BBC deck mechanism.
Fig 149
fig. 28
The control box components and their functions (Fig.
149) are described below.
Handle Controls