Troy-Bilt F753B manual Remove cotter pin securing shift link P, -15 to shift rod

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Section 5: Maintenance

WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, wait for moving parts to stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key (electric start models).

Failure to follow these instructions can result in serious personal injury or property damage.

E

D

B

Figure 5-12: Wheel drive belt adjustment.

 

M

 

N

 

P

 

O

N

3/8"-

 

 

5/16"

O

 

Figure 5-13: Wheel brake adjustment.

2.Rotate shift rod (I, Figures 5-14 and 5-15) clockwise until it stops in the neu- tral (N) position (from forward gear positions).

3.Hold down Operator Presence Control (M, Figure 5-13) and push unit forward and backward. Unit should move freely. If not, continue with Step 4.

4.Remove cotter pin securing shift link (P, Figure 5-15) to shift rod (I).

5.Move shift arm (X) back and forth as necessary into each detent until trans- mission is in neutral. NOTE: Moving shift arm (X) clockwise all the way to the left, and then one notch back counter- clockwise, should put transmission into neutral. When transmission is in neutral, unit will move freely when pushed while holding the Operator Presence Control lever down. If transmission is NOT in neutral, there will be a slight drag on the wheels when pushing unit.

6.When shift arm (X) is in neutral posi- tion, rotate shift link (P) until hooked end fits back into hole in bottom end of shift rod (I). NOTE: Shift rod (I) must be held in the neutral position (see Figure 5-14) while shift link (P) is adjusted.

7.Secure shift link (P) into shift rod (I) with cotter pin removed earlier.

8.Re-check neutral by pushing unit back and forth and shifting lever (I) from reverse to neutral. A small fine-tune adjustment may be required.

I

3.Slowly adjust at nut (O), if necessary, until the distance between the back of brake arm (N) and bracket (P) is 3/8”- 5/16". Use small adjustments (1/4 turn maximum). NOTE: It may be necessary to relieve spring tension when decreas- ing distance. To do so, have an assis- tant engage the Operator Presence Control while you adjust the nut.

TRANSMISSION NEUTRAL ADJUSTMENT

Follow this procedure to adjust neutral on the transmission.

1.Stop engine, wait for all parts to stop moving, and disconnect spark plug wire.

Detent for

Neutral Position

Figure 5-14: Lever in neutral (N) position.

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Contents Importantread Safety Rules and Instructions Carefully Operator’s ManualTable of Contents Finding Model NumberEngine Information Calling Customer SupportSafety Alert Symbol General OperationTive harm Safe Operation Practices for Walk-Behind MowersSafety IV. ServiceII. Slope Operation III. ChildrenSafety Decals Pinch PointsAssembly Steps IntroductionInspection After Delivery TOOLS/MATERIALS NeededAssembly Attach Control Rods4A Attach wheel drive control rod to lever Secure Wire Harness After Assembling Before Using UnitCheck Motor Oil Level Check Tire PressureMower Features and Controls Operator Presence ControlBlade Drive Control Features and Controls Gear Select LeverWheel Drive Control Cutting Height Control LeverIgnition/Starter Switch Electric Start Model Engine Throttle ControlEngine Recoil Starter Pre-Operation Checklist Release all controls before adjusting the cutting heightBefore Operating Mower Set Mower Cutting HeightMoving the Mower Without Engine Power OperationStarting and Stopping Engine To Start the EngineTo Stop the Engine Engaging the BladesTo Engage the Blades To Stop the BladesMaking Turns Mowing Tips and HintsBlade Brake Control Test Engine Service Engine OILChecking Oil Level Changing OilMaintenance Engine CleaningAIR Cleaner Service Spark PlugMower Service Tipping Mower for ServiceBlade Spindle Belt Replacement Engine StorageBlade Drive Belt Replacement Blade Drive Disengaged Blade Drive EngagedBlade Brake Replacement AdjustmentBlade Drive Control Lever Adjustment Tighten hex nut securely after adjust- ing control rodWheel Drive Belt Replacement Wheel Drive Belt AdjustmentWheel Brake Adjustment Follow this procedure to adjust neutral on the transmission Remove cotter pin securing shift link P, -15 to shift rodMower Blades Battery Maintenance Cleaning Underside Mower DeckLubrication OFF-SEASON StorageExtremely dirty or Dusty conditionsMaintenance Chart Improperly adjusted drive linkage Faulty ignition Faulty spark plug Empty fuel tankIs available from your authorized mower or Overheats.Engine