Exmark 4500-352 Brake and Wheel Drive Linkage Adjustment, Maintenance, For Pistol Grip Handles

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Brake and Wheel Drive Linkage Adjustment

Maintenance

Figure 18

48 inch Belt Guide Location (Viewed from underneath the deck)

1.1 3/8 inch (3.5 cm)

Brake and Wheel Drive Linkage Adjustment

1.Check for correct brake adjustment:

Place the drive levers in the “park brake” position. The mower should not move forward or backward. If it does, tighten the wingnuts.

Place the drive levers in the “neutral lock” position. The mower should move forward and backward freely. If it does not, brake adjustment is necessary

2.Adjust brakes by adjusting wingnut on the upper end of each brake rod. Tighten the wingnut until the brakes engage when the drive levers are squeezed enough to allow the neutral lock/park brake latches to be placed into the “park brake” position.

See Figure 6 for Standard Pistol Grip handles and Figure 7 for ECS handles.

Note: The neutral lock/park brake latches must be able to be moved into the park brake position, if not, the brake linkages must be adjusted again.

3.Check for correct wheel drive linkage adjustment.

•For Pistol Grip Handles

Allow drive levers to drop into the full forward position: The clevis pin should rest in the neutral lock latch with approximately 3/16 inch to 1/4 inch (4.7–6.4 mm) clearance from the bottom of the slot (see Figure 19). Adjust if necessary.

To adjust the wheel drive linkage:

A.For wheel drive linkage adjustment, remove the hairpin between the neutral lock latch and drive lever (Figure 19).

Figure 19

Left Side Shown

1.	Drive Lever	4.	Neutral Lock/Park Brake
			Latch
2.	Clevis Pin	5.	Hairpin

3.Drive Linkage

B.Adjust drive linkage length by threading into or out of the swivel until there is a 3/16 inch to 1/4 inch (.47-.64 cm) clearance between the linkage assembly and the bottom of the slot in the neutral lock/park brake latch (see Figure 20).

Figure 20

1.3/16 inch to 1/4 inch (.47 cm-.64 cm)

2.Neutral Lock/Park Brake Latch

3.Drive Linkage

Note: Neutral lock/park brake latch clearance should be checked when there is

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Contents METRO For Serial Nos 790,000 & HigherCALIFORNIA Proposition 65 Warning Introduction Model No Serial NoContents Safety SafetySafety Alert Symbol ALERT! YOUR SAFETY IS INVOLVEDKeep face away from nozzle and gas tank/container opening DANGERAvoid prolonged breathing of vapors Keep away from eyes and skin Never siphon by mouthAllow engine parts, especially the muffler, to cool before touching OperationSlope Operation Remove accumulated debris from muffler and engine areaMow across slopes, never up and down Maintenance and StorageDo Not mow slopes when grass is wet Do Not mow near drop-offs or near waterSafety and Instructional Decals ECS Units Only 48 inch Units Only Pistol Grip Units OnlySafety Interlock System SpecificationsSpecifications Model NumbersTorque Requirements DimensionsCurb Weight Cutting DeckControls Product OverviewOperation OperationNeutral Lock/Park Brake Latches “Off-Run” SwitchDrive Levers Choke ControlOpen the Fuel Shut-Off Valve Pre-StartOperating Instructions Starting the EngineFor Pistol Grip Handles Driving the MachineDrive Lever/Neutral Lock/Park Brake Latch Operation For ECS HandlesChanging Gears If necessary, use assistance when loadingTransporting Transporting a UnitMaintenance Recommended Maintenance SchedulesMaintenance Service Interval As required Periodic MaintenanceService Interval Before each use or daily Check Engine Oil LevelSERVICE DEALER Check Safety Interlock SystemService Pre-Cleaner Element and Air Cleaner Service Interval After the first 5 hoursCheck Tire Pressures Service Interval Every 40 hoursNote See chart for service intervals Check Condition Of BeltsChange Fuel Filter Service Interval Every 160 hoursCheck Spark Plugs Yearly-Replace gearbox greaseThread Locking Adhesives AdjustmentsAdjusting the Cutting Height Mobil HTS Grease Or Food-Grade Anti-seizeNumber Of Spacers CuttingAxle HeightAdjusting the Axle Position Transmission Belt Adjustment Adjusting the Number of Spacers below Caster Support HubAdjusting the Cutting Height with Blade Spacers 3. Place the drive levers in the “park brake” positionWheel Drive Belt Pulley Scrapers Engine to Mower Deck Belt48 inch Deck Shown for Reference Only Blade Brake Adjustment Belt Guide AdjustmentBrake and Wheel Drive Linkage Adjustment Shifter Lever Adjustment Right Side of Unit ShownShifter Detent Adjustment PTO Safety Switch AdjustmentHandle Height Adjustment Upper Hole Wheel Drive Spring Tension AdjustmentUpper Handle More traction applied asClean Debris From Machine CleaningClean Engine and Exhaust System Area Remove Engine Shrouds and Clean Cooling FinsTroubleshooting TroubleshootingCutting blades is/are bent or unbalanced Schematics SchematicsInstructions for Obtaining Warranty Service Exmark Commercial Turf Equipment2 Year Limited Warranty Owner’s ResponsibilitiesPage OUT-FRONT RIDING ACCESSORIES AND OPTIONS SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONSMID-MOUNT RIDING ACCESSORIES AND OPTIONS WALK-BEHIND ACCESSORIES AND OPTIONS