Gravely 991128, Руководство оператора

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EN - 40
LEVEL AND PITCH MOWER
DECK
IMPORTANT: Make sure unit is on a flat,
level surface and that tires are inflated to the
recommended pressures.
Check Blade Level and Pitch
1. Place steering levers in neutral position
and engage parking brake.
2. Stop engine, remove key and wait for
moving parts to stop and for hot parts to
cool.
3. Raise deck to 3 1/2" (8.9 cm) cutting
height.
See Figure 60.
4. Position mower blades so ends point left
to right across the width of the deck.
5. Measure the distance between the
ground and the cutting edge of the left
and right blades. If the measurements are
not within 4.7 mm (3/16") of each other,
level the deck. See
Level Mower Deck on
page 40.
See Figure 61.
6. Position mower blades so ends point
front to back and measure the following:
• At the front of the deck, measure the
distance between the ground and the
cutting edge of the middle blade.
• At the rear of the deck, measure the
distance between the ground and the
cutting edge of the left and the right
blades.
If the front measurement is not 3.2 mm (1/8")
lower than the rear measurements, adjust the
blade pitch. See
Adjust Blade Pitch on
page 41.
Level Mower Deck
See Figure 62.
1. Lower the high side of deck:
a. Loosen jam nuts against deck-
leveling links.
b. Turn adjustment bolts
counterclockwise.
c. Measure distance between the
ground and cutting edges of left and
right blades. Continue adjustment if
necessary.
d. Tighten jam nuts against deck-
leveling links.
2. Raise the low side of deck:
a. Loosen jam nuts against deck-
leveling links.
b. Turn adjustment bolts clockwise.
c. Measure distance between the
ground and cutting edges of left and
right blades. Continue adjustment if
necessary.
d. Tighten jam nuts against deck-
leveling links.
Figure 60
Figure 61
Figure 62
1. Adjustment Bolt
2. Jam Nut
3. Deck-Lift Link
1
2
3
Raise
Lower