Craftsman ZTS 7500 Operator's Manual

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Figure 38. Orient Blades Front-to-BackFront To Back 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. Turn the blades front-to-back as shown in Figure 38.Measure the distance from the ground to front tip ofcenter blade, and from ground to rear tips of left handand right hand blades (Figures 38). Front tips shouldbe 1/8"-1/4" (3-6 mm) higher than rear tips. If not,proceed to step 2.2. The front mower hitch rod (A, Figure 39) is used toadjust front-to-back leveling. To raise or lower thefront of mower deck, loosen the two rear jam nuts (B)on both sides of the hitch rod (A). Adjust the frontjam nuts (C) on both sides of the hitch rod (A) toadjust the deck level. When adjusted correctly,tighten the rear jam nuts (B) to lock hitch rod in place.Figure 39. Front-to-Back LevelingA. Hitch RodB. Rear Jam NutC. Front Jam NutMOWER BELT REPLACEMENTWARNINGBefore inspecting or servicing the mower, turn themower blades OFF, turn the ignition switch OFF,and allow all moving parts to stop. Removeignition key, then disconnect the spark plug wireand fasten it away from the spark plug.Mower Drive Belt Replacement1. Park the rider on a level surface. Disengage the PTO,turn off the engine and set the ground speed controllevers to PARK. Remove the key.2. Use the idler pulley arm (C, Figure 40) to release belttension and remove the mower drive belt (A) from thePTO pulley (E).3. Remove the belt from the remaining deck pulleys.Note: It is not necessary to remove the mower deck.4. Install the new belt (A) as shown in Figure 40.Figure 40. PTO Belt RoutingA. Mower Drive BeltB. Right Arbor PulleyC. Idler Pulley ArmD. Left Arbor PulleyE. Engine PTO PulleyF. Backside Idler Pulley29