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Figure 91
1. U-plate
Checking the Mower Deck Front-to-Rear
Pitch
1. Adjust the tire pressure in the rear tires to specifications.
2. Position one blade front-to-rear. Measure at A and B
locations from a level surface to the cutting edge of
the blade tips (Figure 92).
3. The mower blade should be a 6 mm (1/4 inch) lower in
front at A than in the rear at B. Rotate the blades and
repeat for the other blades. If it is not correct, proceed
to Changing the Deck Front-to-Rear Pitch.
Figure 92
1. Measure blade at points A
and B
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2. Nuts and bolts
2. Measure from a level
surface
Changing the Mower Deck
Front-to-Rear Pitch
Changing the front-to-rear pitch is done by adjusting the
front height-of-cut posts.
1. Place 3 pieces of 2x4 wood under the mower deck as
shown in Figure 93. Stand the 2x4's on the 4 inch part.
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1. 2x4 piece of wood under mower deck
2. For 48 and 52 inch mower decks, loosen both the front
and rear nuts on the adjustment rods (Figure 94).
3. For 60 inch mower decks, loosen both the front
and rear nuts and lift links on the adjustment rods
(Figure 95).
4. The weight of the mower deck must be resting on all
three of the 2x4's (Figure 94). The back lip of the
mower deck is built a 1/4 inch (6mm) lower than the
front lip of the mower deck.
5. For 60 inch mower decks, tighten the lift links
(Figure 95).
6. Tighten both the front and rear nuts.
7. Check the front-to-rear pitch of the cutting unit.
8. If the dimensions are not correct, adjust the front and
rear nuts on either side to get the correct front-to-rear
pitch (Figure 94).
57
Figure 93
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