White Outdoor 933R, 933E Features and Controls, Operator Presence Control, Blade Drive Control

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Section

3 Features and Controls

WARNING

Before operating mower, be sure to read all safety, controls and operating instructions in this Manual and on decals located on machine.

Severe personal injury or property damage could result if this instruction is not followed.

IMPORTANT: THE MOWER IS EQUIPPED WITH A BLADE-BRAKE- CLUTCH CONTROL SYSTEM WHICH IS DESIGNED TO STOP THE MOWER BLADES WITHIN THREE (3) SECONDS AFTER RELEASE OF THE OPERATOR PRESENCE CONTROL. THIS SYSTEM WILL STOP THE BLADES BUT NOT THE ENGINE. THEREFORE, YOU CAN DISEN- GAGE THE BLADE DRIVE AT ANYTIME WITHOUT HAVING TO STOP AND RESTART THE ENGINE. THIS FEATURE IS PARTICULARLY USEFUL WHEN YOU NEED TO CROSS GRAVEL DRIVES OR ROUGH TERRAIN AND YOU DO NOT WANT THE SPINNING BLADES TO STRIKE STONES OR HIDDEN OBSTACLES.

WARNING

MOWER FEATURES AND CONTROLS

This section describes the various features and controls on the unit. Refer to the next section “Operation” for detailed operating instructions. Also, read the separate Engine Owner’s Manual for a detailed explanation of the proper use of the engine controls.

Operator Presence Control

The Operator Presence Control lever (A, Figure 3-1) regulates the operation of the rear wheel brake and the separate Blade Drive Control. Always engage this control before engaging the separate blade drive or wheel drive controls. Always disengage this control before starting the engine.

To engage the Operator Presence Control, press and hold the lever against the handlebar grip. Doing so releases the brake on the rear wheels, allowing the wheels to turn. The engaged position also permits the separate Blade Drive Control to lock in its engaged position (allows the mower blades to turn).

Releasing the lever (disengaged position) applies the rear wheel brake and quickly stops the wheels. Releasing

the lever will also disengage the Blade Drive Control, which will apply a brake that stops the blades within three (3) seconds.

Blade Drive Control

Use this lever (B, Figure 3-1) to en- gage drive to the mower blades.

To engage the blades, first engage the Operator Presence Control (A, Figure 3- 1). Then, push the spring-loaded Blade Drive Control lever (B) forward until it stays in the engaged position.

To stop the blades, release the Operator Presence Control (A). Doing so will disengage the Blade Drive Control

(B)and automatically apply the brake that stops the blades.

Always disengage the Blade Drive

Control before starting the engine. This helps to ensure that the blades will not start turning when the engine starts.

NOTE: Pushing the Blade Drive Control forward will engage the blades even though the Operator Presence Control is not engaged. However, this procedure is NOT RECOMMENDED as you must main- tain constant pressure on the lever (re- leasing lever disengages blades). Always engage the Operator Presence Control before engaging the Blade Drive Control.

The blade-brake-clutch control system should stop the mower blades within three (3) seconds after release of the Operator Presence Control.

If the blades do not stop within three

(3)seconds, put the Engine Throttle Control in the STOP position. Disconnect the spark plug wire and do not operate the mower until the blade- brake-clutch control system has been repaired.

B – BLADE

A – OPERATOR

DRIVE CONTROL

PRESENCE CONTROL

 

C – GEAR

Disengage

SELECT LEVER

 

 

Disengage

Engage

 

 

Engage

Figure 3-1

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Contents Model 933R Shown Operator’s ManualTable of Contents Safe Operation Practices for Walk-Behind Mowers SafetyStop the blade when crossing gravel drives, walks, or roads Cleaning the mower or unclogging the chuteUse only an approved container SafetyDo not mow excessively steep slopes On top, rear of engine platform Safety DecalsAttach Handlebars to Engine Deck AssemblyInspection After Delivery Unpacking MowerContents of Hardware Bag AssemblyProperty damage + USembling Unit Control Result in severe personal injury orAttach Blade Drive Control Rod Attach and Adjust Gear Select LeverAttach Operator Presence Control Rod Add Motor Oil to Engine After Assembling and Before Using UnitBlade Drive Control Features and ControlsOperator Presence Control Cutting Height Control Lever Features and ControlsGear Select Lever Wheel Drive ControlEngine Recoil Starter Ignition/Starter Switch Electric Start ModelStart Starts engine. Release key when engine starts Engine Throttle ControlBefore Operating Mower Pre-Operation ChecklistRelease all controls before adjusting the cutting height OperationIgnition/Starter OperationStarting and Stopping Engine To Start the EngineTo Stop the Blades To Stop the EngineEngaging the Blades To Engage the BladesMowing Tips and Hints Making TurnsBlade Brake Control Test Changing Oil MaintenanceEngine OIL Checking Oil LevelSpark Plug MaintenanceEngine Cleaning AIR Cleaner ServiceBelt Cover Removal Tipping Mower for ServiceBlade Spindle Belt Replacement Engine StorageBlade Drive Disengaged Blade Drive Engaged Blade Drive Belt ReplacementWith mower on level ground, adjust Blade Brake ReplacementBlade Drive Belt Adjustment Blade Drive Control Lever AdjustmentWheel Brake Adjustment Wheel Drive Belt ReplacementWheel Drive Belt Adjustment Rotate shift rod I, Figures 5-14 Follow this procedure to adjust neutral on the transmissionRemove cotter pin securing shift link P, -15 to shift rod Mower Blades OFF-SEASON Storage Cleaning Underside Mower DeckInspection/Cleaning of Mower Deck LubricationLubrication Chart Maintenance Chart Overheats.Engine SymptomIs available from your local White Outdoor Roughly.runsEnginePage MANUFACTURER’S Limited Warranty for