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operating position. Disconnect the spark plug
wire(s) from the spark plug(s).
3. Adjust the tire pressure in all tires to
specifications on page .
4. Check that the blades and spindle shafts are
not bent. Refer to Checking for Bent Blades.
5. Set the height-of-cut to the 4 inch (101.6 mm)
position. Refer to Adjusting the Height-Of-Cut
in Operation, page 19.
6. Perform the steps in the following sections
Frame Set Up, Checking Front-to-Rear Pitch,
and Checking Side-to-Side Leveling.
Adjusting the Frame
Checking the Carrier Frame and Deck
Alignment
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Place a long straight edge on top of the engine
deck as shown in Figure 56.
Figure 56
1. Carrier Frame
2. Top of engine deck
3. Carrier frame mounting
bolts
4. At the carrier frame cross tube, measure
the height at location A (Figure 56). This
measurement must be 1-5/16 inch (33 mm),
plus or minus a 1/4 inch (6 mm).
5. If the height at location A is not correct,
adjustment is needed.
6. Loosen the carrier frame mounting bolts on
both sides of the machine (Figure 56).
4. Location A, 1-5/16 inch (33
mm) ±1/4 inch (6 mm)
5. Straight edge
6. Carrier frame cross tube
7. Align the carrier frame and engine deck to
match 1-5/16 inch (33 mm), plus or minus a
1/4 inch (6 mm) at location A (Figure 56).
8. Tighten the carrier frame mounting bolts on
both sides of the machine.
Checking the Engine Deck Height
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Adjust the tire pressure in all tires to
specifications on page .
4. Measure engine deck height at location A
(Figure 57).
Figure 57
1. Back view of machine
2. Top of engine deck
5. Measure engine deck height at location B
(Figure 57).
6. If the height at location A and B are not the
same, change tire pressure slightly to make
them the same.
Checking Carrier Frame Front-to-Rear
Pitch
The carrier frame must have a pitch of a 1/4 inch
(6 mm) over the length of 24 inches (61 cm) on
the carrier frame (Figure 58).
1. Measure out 24 inches (61cm) on the carrier
frame (Figure 58).
42
3. Tires
4. Same height at locations A
and B
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