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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 idle speed. Engage 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 minute).
4. Check hydraulic fluid level as it drops and add as
required to maintain proper level.
5. Repeat procedure on opposite wheel.
Checking the Hydraulic Lines
After every 100 operating hours, check hydraulic lines and
hoses for leaks, loose fittings, kinked lines, loose
mounting supports, wear, weather and chemical
deterioration. Make necessary repairs before operating.
Note: Keep areas around hydraulic system clean from
grass and debris build up.
Warning
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.
Hydraulic Linkage
Adjustments
Perform the following linkage adjustments when the
machine needs maintenance or set–up for the first time.
Perform the steps Adjusting the Speed Control Linkage
through Adjusting the Tracking. If adjustment is needed,
do them in the order that they are listed.
Adjusting the Speed Control
Linkage
1. Stop engine and wait for all moving parts to stop.
2. Move the speed control lever to the full forward
position (Fig. 49).
2
4
1
5
Figure 49
1. Speed control lever
2. Full speed position
3. Neutral position
3. Check the orientation of the tabs on the ends of the
speed control crank. These tabs should approximately
be pointing straight down at the 6 o'clock position
(Fig. 50).
4. If adjustment is needed, loosen the nuts on both sides
of the swivel on the speed control rod (Fig. 50).
5. Adjust the swivel, until the tabs are at the 6 o'clock
position (Fig. 50).
6. Tighten the nuts on both sides of the swivel (Fig. 50).
40
3
m–6477
4. Medium speed position
5. Control panel
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