Simplicity ZT4000 Series manual Parking Brake Adjustment, Hydraulic Pump Drive Belt Replacement

Page 35

Parking Brake Adjustment

1.Disengage the PTO, engage the parking brake, stop the engine and remove the ignition key.

2.Raise the seat plate.

3.Locate the brake spring (A, Figure 35).

4.With the parking brake engaged, measure the compressed spring length. The spring should be 1-15/16” - 2” (4,9 - 5,1 cm) when compressed.

5.If the spring is not within this range, release the parking brake and turn the adjustment nut (B) to compress or relax the spring.

6.Engage the parking brake and remeasure the spring

NOTICE

Do NOT adjust the spring shorter than

1-15/16” (4,9 cm) when compressed. This may damage the brake mechanism.

Hydraulic Pump Drive Belt Replacement

1.Park the tractor on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, turn off the engine, and remove the ignition key.

2.Remove the PTO drive belt (see MOWER BELT REPLACEMENT for removal instructions).

3.Remove the hardware that secures the clutch anchor pad to the PTO clutch.

4.Loosen the nut towards the front of the machine on the spring anchor hook (G, Figure 36) to release the majority of the belt tension. Use caution and remove the nut to completely release the tension.

5.Remove the old belts and replace it with the new ones. Make sure the V-side of the belt runs in the grooves of the crankshaft pulley and pump pulleys (B & C).

6.Reinstall the anchor hook (G) into the anchor tab and loosely fasten the nut. Adjust the anchor hook until a measurement of 8-3/8” (21,2 cm) is achieved from the outside if the spring hooks. Tighten nut.

7.Reinstall the clutch anchor pad to the PTO clutch and secure with the hardware previously removed.

8.Reinstall the PTO drive belt.

Regular Maintenance

B

A

Figure 35. Parking Brake Adjustment

A.Brake Spring

B.Adjustment Nut

	B
	D	A
8 3/8”	E
(21,2 cm)
C		C
C
	F	G

Figure 36. Hydraulic Pump Drive Belt Replacement

A.Pump Drive Belt

B.Crankshaft Pulley

C.Pump Pulley

D.Idler Pulley

E.Idler Arm

F.Spring

G.Spring Anchor Hook

33

Image 35

Contents Mfg. No Description 5900765 24HP Zero-Turn Riders Mfg. No Description 590070726HP Zero-Turn Riders Date Purchased Table of Contents Children Operating SafetyRead the Manual Moving Parts Slope OperationThrown Objects Overhead Obstacles Roll Bar UseRetaining Walls, Drop-offs, and Water Enclosed Areas Fuel and MaintenanceTransporting and Storage General OperationOperating on steep slopes can be dangerous Towed Equipment Ride-On UnitsEmissions Ignition SystemSafe Handling of Gasoline Service and MaintenanceService & Maintenance Inspection of the Roll Bar Protective Structure Roll Bar InstructionsOperational Warnings Inspection and Maintenance of the Roll Bar Seat Belt Objects Hazard Safety DecalsNorth American Safety Icons Safety Interlock SystemOperational Safety Checks Safety IconsNorth American Models Identification NumbersCE Models CE Identification Tag MarkingsChoke PTO Power Take Off SwitchParking Brake Throttle Control Ignition SwitchHour Meter / Maintenance Reminder Seat Adjustment LeverChecks Before Starting General Operating SafetyOperation Seat AdjustmentCheck Tire Pressures Pushing the Rider by HandTo Adjust Pedal Position Mowing Height AdjustmentFoot Pedal Adjustment Stopping the Rider Starting the EngineForward Travel Practice Zero-Turn Driving PracticeSmooth Travel Practice Turning In Place Practice Turning Around a CornerExecuting an End-Of-Row Zero Turn Fire or explosion can cause severe burns or death StorageMowing Mowing RecommendationsMowing Methods How Much Grass to Mulch Attaching a TrailerProper Mulching Mulching Requires Excellent Mowing ConditionsCheck Rider / Mower for loose hardware Maintenance ScheduleInspect Muffler and Spark Arrester Checking / Adding FuelFuel Filter Change Oil & FilterChange Hydraulic Oil Filter Battery MaintenanceCheck Hydraulic Oil Level Lubricating the Front Casters LubricationGrease OilInspecting the Mower Blades Servicing The Mower BladesBalancing the Mower Blade Nail Reinstalling the Mower BladesSpeed Balancing Adjustment Ground Speed Control Lever AdjustmentTo Adjust Neutral AdjustmentReturn-to-Neutral Adjustment Hydraulic Pump Drive Belt Replacement Parking Brake AdjustmentSpring loaded components can kick back causing injury Rear Suspension AdjustmentTo adjust the spring pre-load Deck Lift Rod Timing And Leveling Adjustment Mower PTO Belt Idler Arm Stationary Idler Pulley Mower Belt ReplacementTroubleshooting the Rider TroubleshootingTroubleshooting the Mower Troubleshooting the RiderStreaking Troubleshooting Common Cutting ProblemsDeck HP Briggs & StrattonHydroGear PG-3H / HGM-12E Indentification Product Quick Specs