Setting The Hydraulic Pump; Neutral Position - Toro 74412 Operator's Manual

Figure 56
1. Hydraulic lter
2. Gasket
Bleeding the Hydraulic System
The traction system is self bleeding, however, it
may be necessary to bleed the system if fluid is
changed or after work is performed on the system.
1. Raise rear of the machine so wheels are off the
ground and support with jack stands.
2. Start the engine and run at low idle speed.
Engage the lever and traction on one side and
spin the wheel by hand.
3. When the wheel begins to spin on its own,
keep it engaged until wheel drives smoothly.
(minimum 2 minutes)
4. Check the hydraulic fluid level and add as
required to maintain proper level.
5. Repeat this procedure on the opposite wheel.
Checking the Hydraulic Hoses
After every 100 operating hours, check the
hydraulic hoses for leaks, loose fittings, kinked
lines, loose mounting supports, wear, weather and
chemical deterioration. Make necessary repairs
before operating.
Note: Keep areas around the hydraulic system
clean from grass and debris build up.
3. Adapter
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• If hydraulic fluid is injected into the skin
it must be surgically removed within a
few hours by a doctor familiar with this
type of injury. Gangrene may result if
this is not done.
• Keep body and hands away from pin hole
leaks or nozzles that eject high pressure
hydraulic fluid.
• Use cardboard or paper to find hydraulic
leaks.
• Safely relieve all pressure in the hydraulic
system before performing any work on
the hydraulic system.
• Make sure all hydraulic fluid hoses
and lines are in good condition and
all hydraulic connections and fittings
are tight before applying pressure to
hydraulic system.

Setting the Hydraulic Pump

Neutral Position

Note: Adjust the handle neutral first. That needs
to be correct before the following adjustment can
be made.
This adjustment must be made with drive wheels
turning.
Mechanical or hydraulic jacks may fail to
support machine and cause a serious injury.
• Use jack stand when supporting
machine.
• Do not use hydraulic jacks.
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