LAWNBOY Precision Z340 HLX, Руководство оператора

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Figure 41
1. Hairpin cotter and washer 3. Front hole
2. Leveling bracket 4. Rear hole
8. Check the front-to-rear blade slope; refer to
Adjusting the Front-to-Rear Blade Slope.
Adjusting the Front-to-Rear
Blade Slope
Check the front-to-rear blade level any time you
install the mower. If the front of the mower is
more than 5/16 inch (7.9 mm) lower than the
rear of the mower, adjust the blade level using the
following instructions:
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Check the air pressure of all four tires. If
needed, adjust to the recommended inflation;
refer to Checking the Tire Pressure in
Drive System Maintenance, page 28.
4. Check and adjust the side-to-side blade level
if you have not checked the setting; refer to
Leveling the Mower from Side-to-Side.
5. Measure the length of the rod extending out of
the adjusting block on the sides of the chassis
(Figure 42).
6. If the rod length is not a 3/4 inch (19 mm),
remove the hairpin cotter and washer from the
end of the adjusting rod (Figure 42) and turn
the rod until the 3/4 inch (19 mm) dimension
is obtained.
7. Install the end of the rod into the hole in the
mower mount and secure it with the washer
and hairpin cotter.
Figure 42
1. Leveling bracket 3. Adjusting rod
2. Adjusting block 4. Hairpin cotter and washer
8. Repeat steps 5 through 7 for the opposite side
of the mower.
9. Set the height-of-cut at position D [3 inch
(76 mm)] and carefully rotate the blades so
they are facing front to rear (Figure 43).
10. Measure from the tip of the front blade to the
flat surface and the tip of the rear blade to the
flat surface (Figure 43). If the front blade tip
is not 1/16-5/16 inch (1.6-7.9 mm) lower than
the rear blade tip, adjust the front locknuts.
Figure 43
1. Blades front to rear 3. Measure here
2. Outside cutting edges
11. To adjust the front-to-rear blade slope, remove
the locknuts and then rotate the adjustment
nuts in the front of the mower (Figure 44).
12. To raise the front of the mower, tighten the
adjustment nuts. To lower the front of the
mower, loosen the adjustment nuts.
13. After adjusting both adjustment nuts evenly,
check the front-to-rear slope again. Continue
adjusting the nuts until the front blade tip is
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