Troubleshooting, Adjustment & Service

Mower Adjustments Continued.

Cutting Height Adjustment

Note: To operate the electric cutting height motor, it is necessary to insert the ignition key and turn it to the on position. This may be safely done so long as the spark plug wires have been disconnected as noted in the WARNING at right. The key should be turned to off and removed when the step has been completed.

Press the cutting height adjustment switch while observ- ing the cutting height gauge on the left side of the mower to adjust the cutting height.

Leveling The Mower

If the cut is uneven, the mower may need leveling. Unequal or improper tire pressure may also cause an uneven cut. Tire pressure should be as follows:

•Front: 12-15 psi

•Rear: 6-8 psi

SIDE TO SIDE LEVELING

1.With the mower installed, place the tractor on a smooth, level surface such as a concrete floor. Turn the front wheels straight forward.

2.Place the cutting height adjust in high-cut position.

3.Set the parking brake, turn off the ignition, and remove the key.

4.Check for bent blades and replace if necessary.

5.Arrange the mower blades so that they are pointing from side-to-side.

6.Measure the distance between the outside tips of each blade and the ground. If there is more than 1/8" (3mm) difference between the measurements on each side, proceed to step 5. If the difference is 1/8" (3mm) or less, proceed to Front To Back Leveling.

7.See Figure 47. Loosen the outside nut (A) then turn the eccentric nut (B) to raise or lower the left side of the deck. Repeat on the right side of the deck. When the mower deck is level, hold the eccentric nut while tightening the outside nut.

FRONT TO BACK LEVELING

1.Arrange the blades so they face front-to-back.

2.Measure the distance from the ground to the front and rear tips of each blade. The measurement should be equal for both blades. Front tips should be 1/8” to 1/4” higher that the rear tips. If not, proceed to step 3.

3.Loosen the two rear jam nuts on both both arm assemblies (see Figure 48). Adjust the jam nuts on both arms until the mower deck is level or the front is 1/8” to 1/4” higher.

WARNING

Before checking mower, shut off PTO and engine. Allow all moving parts to stop. Remove ignition key, then disconnect the spark plug wires and fasten them away from the spark plugs.

B

 

 

A

 

 

Starting Position

Max 1/4 Turn

Max 1/4 Turn

 

to Lower Side

to Raise Side

 

of Mower

of Mower

Figure 47. Side-to-Side Adjustment

A.Outside Nut

B.Eccentric Nut

A

Figure 48. Front to Back Leveling

A.Jam Nuts

32

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Simplicity 1693220, 1693738, 1693770, 1693771, 1693764, 1693769, 1693563, 1693561 Cutting Height Adjustment, Leveling The Mower
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