Wheel Drive Spring Tension Adjustment, Upper Hole | Exmark 4500-352

Upper Handle

Maintenance

Figure 26

1.	Upper Handle	3.	Adjustment Holes
2.	Upper Hole	4.	Fuel Tank Support

Note: Adjustment Holes are actually in the side of the fuel tank support.

Wheel Drive Spring Tension Adjustment

It may be necessary to increase wheel drive belt tension under certain operating conditions such as, wet grass, hilly terrain, or while pulling a sulky.

1.Stop engine and wait for all moving parts to stop. Engage parking brake. Remove key or spark plug wire(s).

2.Disengage neutral lock/park brake latches and release drive levers to lower spring force.

3.Remove the 5/16-18 inch whizlock nut securing the adjustment bolt to the drive wheel shield. Locate bolt assembly in the desired position as follows:

•Position A-Normal Conditions

•Position B-More Severe

•Position C-Most Severe

Note: Lever force is lowest with bolt assembly in Position A and will increase in Positions B and C (see Figure 27).

Figure 27

1.	More traction applied as	4.	Position C–Most Severe
	bolt moves down
2.	Position A–Normal	5.	Front of Unit
	Conditions
3.	Position B–More Severe

33

Image 33

Exmark 4500-352 Wheel Drive Spring Tension Adjustment, Maintenance, Upper Handle, Upper Hole, More traction applied as

Contents

For Serial Nos 790,000 & Higher METRO CALIFORNIA Proposition 65 Warning Model No Serial No Introduction Contents Safety Alert Symbol SafetySafety ALERT! YOUR SAFETY IS INVOLVED Avoid prolonged breathing of vapors DANGERKeep face away from nozzle and gas tank/container opening Keep away from eyes and skin Never siphon by mouth Slope Operation OperationAllow engine parts, especially the muffler, to cool before touching Remove accumulated debris from muffler and engine area Do Not mow slopes when grass is wet Maintenance and StorageMow across slopes, never up and down Do Not mow near drop-offs or near water Safety and Instructional Decals ECS Units Only Pistol Grip Units Only 48 inch Units Only Specifications SpecificationsSafety Interlock System Model Numbers Curb Weight DimensionsTorque Requirements Cutting Deck Operation Product OverviewControls Operation Drive Levers “Off-Run” SwitchNeutral Lock/Park Brake Latches Choke Control Operating Instructions Pre-StartOpen the Fuel Shut-Off Valve Starting the Engine Drive Lever/Neutral Lock/Park Brake Latch Operation Driving the MachineFor Pistol Grip Handles For ECS Handles Transporting If necessary, use assistance when loadingChanging Gears Transporting a Unit Maintenance Recommended Maintenance SchedulesMaintenance Service Interval Before each use or daily Periodic MaintenanceService Interval As required Check Engine Oil Level Service Pre-Cleaner Element and Air Cleaner Check Safety Interlock SystemSERVICE DEALER Service Interval After the first 5 hours Note See chart for service intervals Service Interval Every 40 hoursCheck Tire Pressures Check Condition Of Belts Check Spark Plugs Service Interval Every 160 hoursChange Fuel Filter Yearly-Replace gearbox grease Adjusting the Cutting Height AdjustmentsThread Locking Adhesives Mobil HTS Grease Or Food-Grade Anti-seize Axle CuttingNumber Of Spacers Height Adjusting the Axle Position Adjusting the Cutting Height with Blade Spacers Adjusting the Number of Spacers below Caster Support HubTransmission Belt Adjustment 3. Place the drive levers in the “park brake” position Wheel Drive Belt Pulley Scrapers Engine to Mower Deck Belt48 inch Deck Shown for Reference Only Belt Guide Adjustment Blade Brake Adjustment Brake and Wheel Drive Linkage Adjustment Right Side of Unit Shown Shifter Lever Adjustment Shifter Detent Adjustment PTO Safety Switch AdjustmentHandle Height Adjustment Upper Handle Wheel Drive Spring Tension AdjustmentUpper Hole More traction applied as Clean Engine and Exhaust System Area CleaningClean Debris From Machine Remove Engine Shrouds and Clean Cooling Fins Troubleshooting Troubleshooting Cutting blades is/are bent or unbalanced Schematics Schematics 2 Year Limited Warranty Exmark Commercial Turf EquipmentInstructions for Obtaining Warranty Service Owner’s ResponsibilitiesPage MID-MOUNT RIDING ACCESSORIES AND OPTIONS SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONSOUT-FRONT RIDING ACCESSORIES AND OPTIONS WALK-BEHIND ACCESSORIES AND OPTIONS