Toro 04289, Руководство оператора

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Maintenance
Note:
Determine the left and right sides of the
machine from the normal operating position.
Supporting the Cutting Unit
Whenever you need to tip the cutting unit to expose
the bedknife/reel, prop up the rear of the cutting unit
to ensure that the nuts on the back end of the bedbar
adjusting screws are not resting on the work surface
(
Figure 8 ).
g278461
Figure 8
1. Prop (not provided) 2. Bedknife adjusting screw
nut (2)
Adjusting the Bedknife to
Reel Contact
Adjusting the Bedknife Daily
Prior to mowing each day, or as required, check each
cutting unit to verify proper bedknife-to-reel contact.
Perform this check even though quality of cut is
acceptable.
1. Lower the cutting units onto a hard surface.
2. Shut off the machine as follows:
•
Gas units: Shut off the engine and disconnect
the spark-plug wire.
•
Electric units: Turn off the machine and
disconnect the battery connector (T-handle).
3. Slowly rotate the reel in a reverse direction,
listening for reel-to-bedknife contact.
•
If no contact is evident, turn the bedbar
adjusting screws clockwise ( Figure 9 ), 1 click
at a time, until you feel and hear light contact.
g014595
Figure 9
1. Bedbar adjusting screw
Note:
The reel must cut one sheet of paper,
when inserted at a right angle to the bedknife,
at both ends and the center of the reel.
Note:
The bedbar adjusting screws have
detents corresponding to 0.018 mm (0.0007
inch) bedknife movement for each indexed
position.
•
If excessive contact/reel drag is evident,
you need to backlap, reface the front of
the bedknife, or regrind the cutting unit
to achieve the sharp edges needed for
precision cutting (Refer to the
Toro Manual
for Sharpening Reel and Rotary Mowers ,
Form No. 09168SL).
Important:
Light contact is preferred at all
times. If you do not maintain light contact,
the bedknife/reel edges will not sufficiently
self-sharpen, and dull cutting edges will
result after a period of operation. If you
maintain excessive contact, bedknife/reel
wear will be accelerated, uneven wear can
result, and the quality of cut may decline.
Note:
For eFlex cutting units, the
reel-to-bedknife contact has a significant
impact on energy consumption. Very light
contact is best for cutting performance and
battery consumption.
Note:
As the reel blades continue to run against
the bedknife, a slight burr will appear on the front
cutting edge surface along the full length of the
bedknife. Occasionally run a file across the front
edge to remove this burr to improve cutting.
After extended running, a ridge eventually
develops at both ends of the bedknife. Round
8