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Figure 46
1. Hydrostat drive belt
Adjusting the Throttle
1. Position the throttle lever rearward so it stops against
the control panel slot.
2. Loosen the throttle cable connector on the injection
pump lever arm (Fig. 47).
Figure 47
1. Injection pump lever arm
3. Hold the injection pump lever arm against the low idle
stop and tighten the cable connector.
4. Loosen the screws securing the throttle control to the
control panel.
5. Push the throttle control lever all of the way forward.
6. Slide the stop plate until it contacts the throttle lever
and tighten the screws securing the throttle control to
the control panel.
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1
2. Spring end
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38
7. If the throttle does not stay in position during operation,
torque the locknut, used to set the friction device on the
throttle lever, to 40–55 in.-lb. (5–6 N⋅m). The maximum
force required to operate the throttle lever should be
20 lb. (27 N⋅m).
Changing the Hydraulic Fluid
Change the hydraulic fluid after every 400 operating hours,
in normal conditions. If the fluid becomes contaminated,
contact your local Toro distributor because the system must
be flushed. Contaminated fluid looks milky or black when
compared to clean oil.
1. Turn the engine off and raise the hood.
2. Disconnect the hydraulic line (Fig. 48) or remove the
hydraulic filter (Fig. 49) and let the hydraulic fluid flow
into a drain pan. Install the hydraulic line when
hydraulic fluid stops draining.
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Figure 48
1. Hydraulic line
Figure 49
1. Hydraulic filter
3. Fill the reservoir (Fig. 50) with approximately 3.5 U.S.
gallons (13.2 l) of hydraulic fluid; refer to Checking the
Hydraulic System, page 17.
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