Toro 30488, Руководство оператора

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Drive System
Maintenance
Adjusting the Tracking
If the machine does not track straight, adjustment is required.
1. Check the rear tire pressure; refer to Checking the Tire
Pressure (page 34) .
2. Loosen the wing nuts on the right control rod, and
rotate the turnbuckle in or out to ensure that the
right side control lever is centered in the neutral-lock
position.
3. Secure the turnbuckle in position with the wing nuts
(
Figure 42 ).
4. Loosen the wing nuts on the left control rod and rotate
the turnbuckle in or out to change the tracking.
5. Secure the turnbuckle in position with the wing nuts
(
Figure 42 ).
6. Check for proper tracking.
7. Adjust the left control rod if a change is needed.
Figure 42
1. Turnbuckle
3. Top wing nut (left hand
threaded)
2. Bottom wing nut
Checking the Tire Pressure
Service Interval: Every 50 hours/Monthly (whichever
comes first)
Check the pressure at the valve stem ( Figure 43 ).
Maintain the air pressure in the rear tires at 83 to 97 kPa (12
to 14 psi). Uneven tire pressure can cause an uneven cut.
Note:
The front tires are semi-pneumatic tires and do not
require air-pressure maintenance.
Figure 43
Replacing the
Caster-Wheel-Fork Bushings
The caster-wheel forks are mounted in bushings pressed into
the top and bottom of the carrier frame mounting-pivot
tubes. To check the bushings, move the caster forks back and
forth and side-to-side. If a caster fork is loose, the bushings
are worn and must be replaced.
1. Raise the cutting unit so the caster wheels are off the
floor, then support the front of the mower with jack
stands.
2. Remove the locking pin and spacer(s) from the top of
the caster-wheel fork (
Figure 44 ).
Figure 44
1. Locking pin 3. Carrier frame pivot tube
2. Spacers 4. Caster-wheel fork
3. Pull the caster-wheel fork out of the mounting tube,
leaving the spacer(s) on the bottom of the fork.
34