Craftsman 28986 manual Mower Deck Leveling Adjustments, Side to Side Leveling, Trunnion Jam Nuts

MOWER DECK LEVELING

ADJUSTMENTS

WARNING

Before adjusting the mower, turn the mower blades OFF, turn the ignition switch OFF, remove the key, and allow all moving parts to stop. Disconnect the spark plug wire and fasten it away from the spark plug.

Side to Side Leveling

If the cut is uneven, the mower may need leveling.

Unequal or improper tire pressure may also cause an uneven cut. See CHECK TIRE PRESSURE.

1.With the mower installed, place the rider on a smooth, level surface such as a concrete floor. Turn the front wheels straight forward. Turn the engine off, set the ground speed control levers to PARK, set the parking brake lever to ENGAGE, and wait for all mov- ing parts to stop.

2.Check for bent blades and replace if necessary.

3.Check the tire pressures. See CHECK TIRE PRES- SURE.

4.Set the cutting height to mid position. Arrange the mower blades so that they are pointing from side-to- side (see Figure 37).

5.Measure the distance between the tips of the outside blades and the ground (Figures 37 & 38). If there is more than 1/8" (3 mm) difference between the meas- urements on each side, proceed to step 6. If the dif- ference is 1/8" (3 mm) or less, proceed to Front To Back Leveling.

6.Side-to-side leveling is accomplished using the threaded rods (A, Figure 39) and trunnion (B) on the right and left rear sides of the mower deck. Loosen the jam nuts (C) and adjust the nuts up or down to adjust the mower level. When complete, tighten the jam nuts against the trunnion to lock the adjustment in place.

Figure 37. Orient Blades Side-to-Side

Figure 38. Measure Blade Tips to Ground

A. Mower Deck

B.Blade Tip

C.Level Ground

Figure 39. Side-to-Side Adjustment

A. Threaded Rod

B.Trunnion

C.Jam Nuts

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