Craftsman 28790 - 26 HP 50 in. Zero Turn Tractor Mower Operator's Manual

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MOWER DECK LEVELINGADJUSTMENTSWARNINGBefore adjusting the mower, turn the mowerblades OFF, turn the ignition switch OFF, removethe key, and allow all moving parts to stop.Disconnect the spark plug wire and fasten it awayfrom the spark plug.Side to Side LevelingIf the cut is uneven, the mower may need leveling.Unequal or improper tire pressure may also cause anuneven cut. See CHECK TIRE PRESSURE.1. With the mower installed, place the rider on asmooth, level surface such as a concrete floor. Turnthe front wheels straight forward. Turn the engine off,set the ground speed control levers to PARK, andwait for all moving parts to stop.2. Check for bent blades and replace if necessary.3. Check the tire pressures. See CHECK TIREPRESSURE.4. Set the cutting height to mid position. Arrange themower blades so that they are pointing from side-to-side (Figure 35).5. Measure the distance between the tips of the outsideblades and the ground (Figures 35 & 36). If there ismore than 1/8" (3mm) difference between themeasurements on each side, proceed to step 6. If thedifference is 1/8" (3mm) or less, proceed to Front ToBack Leveling.6. See Figure 37. Side-to-side leveling is accomplishedusing the threaded rods (A) and trunnion (B) on theright and left rear sides of the mower deck. Loosenthe jam nuts (C) and adjust the nuts up or down toadjust the mower level. When complete, tighten thejam nuts against the trunnion to lock the adjustmentin place.\Figure 35. Measure BladeTips to GroundA. Mower DeckB. Blade TipC. Level GroundFigure 36. Orient Blades Side-to-SideFigure 37. Side-to-Side AdjustmentA. Threaded RodB. TrunnionC. Jam Nuts28