Briggs & Stratton 150Z Series Operation, Control Functions, Ground Speed Levers Parking Brake

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OPERATION

Left

Ground Speed

Control Lever

Right

Ground Speed &

Parking Brake

Lever

Mower

Cutting

Height

Switch

Ground Speed Levers -

Ground Speed Levers -

DRIVE Positons

START/PARK Positons

Fuel Tank

Cap

CONTROL FUNCTIONS

The information below briefly describes the function of individual controls. Starting, stopping, driving, and mowing require the combined use of several controls applied in specific sequences. To learn what combination and sequence of controls to use for various tasks please read the entire section.

Transmission

Mower Blade

Release Levers

Switch

 

Choke

(Closed)

Choke (Open)

Engine

Speed

(Fast)

Engine

RUN Speed

OFFSTART(Slow)

Ignition

Switch

Figure 1. Controls

Ground Speed Levers /

Parking Brake

These levers control the ground speed and parking brake of the rider. The left lever controls the left rear drive wheel and the right lever controls the right rear drive wheel and parking brake.

Pushing the levers out to the side, away from the operator’s lap, locks the parking brake in PARK position (inset, Figure 1). This is the proper position for starting the rider. Pulling the levers in across the operator’s lap puts the levers in DRIVE positions.

From DRIVE position, moving a lever forward increases the FORWARD speed of the associated wheel. Pulling back on a lever increases the REVERSE speed. The further a lever is pushed, the faster the drive wheel will turn.

See DRIVING PRACTICE for steering instructions.

Engine Speed Control

The engine speed control adjusts engine speed. Always set the engine speed to FAST for driving and mowing. Move the engine speed control back to SLOW to decrease engine speed. NEVER turn on the mower blades with the engine speed set to SLOW. Only turn on the mower blades with the engine speed set to FAST.

Choke

CLOSE the choke for cold starting (pull knob up). OPEN the choke once the engine starts (push knob down). If the engine is warm, it may not require choking. If this is the case, set the choke to OPEN (push the knob down) while cranking the engine. In most cases, you will need to close the choke in order to start the engine.

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Contents 20HP Zero-Turn Riders OPERATOR’S ManualPage Table of Contents General Operation Safety RulesIgnition System Only Ride UP and Down Hill Not Across Hill Degrees MAX Safe Handling of Gasoline Service & Maintenance2690716 Safety & Operation DecalsMfg. No ID Tag Identification NumbersEngine Speed Control OperationControl Functions Ground Speed Levers Parking BrakeGeneral Operating Safety Fuel Recommendations Checks Before StartingMowing Emergency StoppingStopping the Rider & Engine Starting the EngineReverse Travel Practice Driving PracticeSmooth Travel Forward Travel PracticeExecuting an End-Of-Row Zero Turn Practice Turning Around a CornerPractice Turning In Place Executing TurnsRemoving the Mower Deck Mower Deck Removal InstallationInstalling the Mower Deck 20HP Briggs & Stratton MaintenanceMaintenance Schedule Rider MAINTENANCE, All ModelsCheck Tire Pressure Accessing the Engine CompartmentClean Debris from Rider Engine Compartment Clean Debris from Engine Cooling Areas and AIR FilterOil LubricationGrease Blade Removal Clean Deck Check / Replace Mower BladesOperational Safety Checks Clean the Battery and CablesCheck Rider Safety System Adjust PTO Clutch Window Adjustment Nut Feeler Gauge Check / Adjust PTO ClutchChange Engine OIL & Filter Check Engine OIL LevelChange Engine OIL Air Filter Removal & Installation Service AIR Filter PRE-CLEANERReplace Spark Plug Pre-Cleaner ServiceAir Filter Service Pre-Cleaner Cutting Height Adjustment Service & AdjustmentsGround Speed Control Lever Adjustment Speed Balancing Adjustment62cm Brake AdjustmentBattery Charging Engine AdjustmentsSide to Side Leveling Mower Deck Leveling AdjustmentsFront To Back Leveling Mower Belt ReplacementMower Drive Belt Replacement After Storage StorageStorage Before StorageTroubleshooting the Rider TroubleshootingTroubleshooting the Mower Chassis SpecificationsService Items Engine TransmissionPage HOW High to MOW the Grass HOW and When toWATER, Fertilize AerateProper Mowing Speed When and HOW Often to MOW