Briggs & Stratton 150Z Series manual Mower Belt Replacement, Front To Back Leveling

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Figure 38. Orient Blades Front-to-Back

Front To Back 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.Turn the blades front-to-back as shown in Figure 38. Measure the distance from the ground to front tip of center blade, and from ground to rear tips of left hand and right hand blades (Figures 38). Front tips should be 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 to adjust front-to-back leveling. To raise or lower the front of mower deck, loosen the two rear jam nuts (B) on both sides of the hitch rod (A). Adjust the front jam nuts (C) on both sides of the hitch rod (A) to adjust the deck level. When adjusted correctly, tighten the rear jam nuts (B) to lock hitch rod in place.

C

B

A

Figure 39. Front-to-Back Leveling

A.Hitch Rod

B.Rear Jam Nut

C.Front Jam Nut

MOWER BELT REPLACEMENT

E

WARNING

Before inspecting or servicing the mower, turn the mower blades OFF, turn the ignition switch OFF, and allow all moving parts to stop. Remove ignition key, then disconnect the spark plug wire and fasten it away from the spark plug.

Mower Drive Belt Replacement

1.Park the rider on a level surface. Disengage the PTO, turn off the engine and set the ground speed control levers to PARK. Remove the key.

2.Use the idler pulley arm (C, Figure 40) to release belt tension and remove the mower drive belt (A) from the PTO 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.

A

F

F

B

C

D

Figure 40. PTO Belt Routing

A.Mower Drive Belt

B.Right Arbor Pulley

C.Idler Pulley Arm

D.Left Arbor Pulley

E.Engine PTO Pulley

F.Backside Idler Pulley

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Contents OPERATOR’S Manual 20HP Zero-Turn RidersPage Table of Contents Safety Rules General OperationIgnition System Only Ride UP and Down Hill Not Across Hill Degrees MAX Service & Maintenance Safe Handling of GasolineSafety & Operation Decals 2690716Mfg. No Identification Numbers ID TagGround Speed Levers Parking Brake OperationControl Functions Engine Speed ControlGeneral Operating Safety Checks Before Starting Fuel RecommendationsStarting the Engine Emergency StoppingStopping the Rider & Engine MowingForward Travel Practice Driving PracticeSmooth Travel Reverse Travel PracticeExecuting Turns Practice Turning Around a CornerPractice Turning In Place Executing an End-Of-Row Zero TurnMower Deck Removal Installation Installing the Mower DeckRemoving the Mower Deck Rider MAINTENANCE, All Models MaintenanceMaintenance Schedule 20HP Briggs & StrattonClean Debris from Engine Cooling Areas and AIR Filter Accessing the Engine CompartmentClean Debris from Rider Engine Compartment Check Tire PressureLubrication GreaseOil Clean Deck Check / Replace Mower Blades Blade RemovalClean the Battery and Cables Check Rider Safety SystemOperational Safety Checks Check / Adjust PTO Clutch Adjust PTO Clutch Window Adjustment Nut Feeler GaugeCheck Engine OIL Level Change Engine OILChange Engine OIL & Filter Service AIR Filter PRE-CLEANER Air Filter Removal & InstallationPre-Cleaner Service Air Filter Service Pre-CleanerReplace Spark Plug Speed Balancing Adjustment Service & AdjustmentsGround Speed Control Lever Adjustment Cutting Height AdjustmentEngine Adjustments Brake AdjustmentBattery Charging 62cmMower Deck Leveling Adjustments Side to Side LevelingMower Belt Replacement Mower Drive Belt ReplacementFront To Back Leveling Before Storage StorageStorage After StorageTroubleshooting Troubleshooting the RiderTroubleshooting the Mower Engine Transmission SpecificationsService Items ChassisPage Aerate HOW and When toWATER, Fertilize HOW High to MOW the GrassWhen and HOW Often to MOW Proper Mowing Speed
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