Exmark 4500-689 manual Adjusting the Number of Spacers below Caster Support Hub, Maintenance

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Adjusting the Number of Spacers below Caster Support Hub

Maintenance

8.With the jack, raise or lower the back end of the engine deck so that two axle adjustment bolts can be reinstalled in desired hole location. A tapered punch can be used to help align the holes.

9.Retighten all four bolts, lower unit and remove jack.

10.Install mower deck belt shield.

11.Adjust wheel drive and brake linkages as required (see Brake and Wheel Drive Linkage Adjustment section).

Figure 10

1.

Axle Pivot Bolt

5.

Position C

2.

Axle Adjustment Holes

6.

Position D

 

(Located in the side of

 

 

 

the rear deck.)

 

 

3.

Position A

7.

Position E

4.

Position B

8.

Place jack here

Note: The axle positions are in 1/2 inch (1.3 cm) increments and the large caster spacers are 1/2 inch (1.3 cm) thick. Therefore, by adjusting the same number of 1/2 inch (1.3 cm) caster spacers as axle hole positions the blades will retain the same front-to-back tip (rake).

Adjusting the Number of Spacers below Caster Support Hub

1.Stop the machine and move the drive levers to the neutral lock position.

2.Disengage the PTO.

3.Place the drive levers in the “park brake” position.

4.Push down on handles to lift front casters off the ground.

5.Support with jackstands.

6.Remove “quick pin” from one caster and remove caster from hub (see Figure 11).

Figure 11

1.

Four 1/2 inch (127 mm)

3.

3/16 inch (4.8 mm)

 

spacers

 

spacer

2.

Quick Pin

4.

Caster support

7.Adjust the number of 1/2 inch spacers between bottom of hub and caster yoke to obtain the desired cutting height from the Cutting Height Adjustment Table in the Adjusting the Cutting Height section.

8.Install remaining spacers on top of hub.

9.Install “quick pin”.

10.Repeat for other caster.

Adjusting the Cutting Height with Blade Spacers

1.Stop the machine and move the drive levers to the neutral locked position.

2.Disengage the PTO.

3.Engage the park brake.

4.Stop the engine, remove the key and wait for all moving parts to stop.

5.Blades may be adjusted for cutting height by using the four 1/4 inch (.64 cm) spacers found on the blade spindle bolts (factory setting is two above and two below). This allows a 1 inch (2.5 cm) range in 1/4 inch (.64 cm) increments of cutting height in any axle position. The same number of blade spacers must be used on all blades to achieve a level cut (two above and two below, one above and three below, etc.).

6.Raise front of deck and support with jack stands.

7.Hold blade bolt on bottom and loosen spindle nut on top.

8.Adjust number of spacers between bottom of spindle and blade as indicated in the Cutting

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Contents For Serial Nos 920,000 & Higher METROAll Rights Reserved CALIFORNIA Proposition 65 WarningModel No Serial No IntroductionContents ALERT! YOUR SAFETY IS INVOLVED SafetySafety Alert Symbol SafetyKeep away from eyes and skin Never siphon by mouth DANGERAvoid prolonged breathing of vapors Keep face away from nozzle and gas tank/container openingRemove accumulated debris from muffler and engine area OperationSlope Operation Allow engine parts, especially the muffler, to cool before touchingDo Not mow near drop-offs or near water Maintenance and StorageDo Not mow slopes when grass is wet Mow across slopes, never up and downSafety and Instructional Decals 103-2245 1-403143 98-5954 103-1623103-1798 103-2076 103-2244Pistol Grip Units Only 117-2718 103-562648 inch Deck Units Only 103-1967Model Numbers SpecificationsSpecifications Safety Interlock SystemCutting Deck DimensionsCurb Weight Torque RequirementsOperation Product OverviewOperation ControlsDrive Levers “Off-Run” SwitchChoke Control Throttle ControlStarting the Engine Pre-StartOperating Instructions Open the Fuel Shut-Off ValveFor ECS Handles Driving the MachineDrive Lever/Neutral Lock/Park Brake Latch Operation For Pistol Grip HandlesChanging Gears Keep feet and legs out from under the unit when loading and unloadingIf necessary, use assistance when loading TransportingMaintenance Recommended Maintenance SchedulesMaintenance Check Engine Oil Level Periodic MaintenanceService Interval Before each use or daily Service Interval As requiredCheck for Loose Hardware Check Safety Interlock SystemService Air Cleaner SERVICE DEALERChange Engine Oil Service Interval After the first 5 hoursService Interval Every 40 hours Note See chart for service intervalsChange Fuel Filter Service Interval Every 160 hoursService Interval Every 500 hours Check Spark PlugsDielectric Grease Thread Locking AdhesivesMobil HTS Grease Or Food-Grade Anti-seize Copper-Based Anti-seizeAdjusting the Cutting Height AdjustmentsAdjusting the Axle Position Adjusting the Cutting Height with Blade Spacers Adjusting the Number of Spacers below Caster Support HubTransmission Belt AdjustmentWheel Drive Belt Pulley Scrapers Engine to Mower Deck BeltCheck belt tension after the first hour of operation Blade Brake Adjustment48 inch Belt Guide Location Viewed from underneath the deck Belt Guide AdjustmentBrake and Wheel Drive Linkage Adjustment Shown with Blades DisengagedLeft Side Shown Shifter Lever Adjustment Wheel Drive Spring Tension Adjustment Shifter Detent AdjustmentPTO Safety Switch Adjustment Handle Height AdjustmentClean all debris from engine and exhaust system area CleaningClean Engine and Exhaust System Area Remove Engine Shrouds and Clean Cooling FinsMotor Oil Disposal Clean Debris From MachineClean Grass Build-Up Under Deck Waste DisposalTroubleshooting TroubleshootingCutting blades is/are bent or unbalanced Schematics SchematicsOwner’s Responsibilities Exmark Commercial Turf Equipment2 Year Limited Warranty Instructions for Obtaining Warranty ServicePage Description of Work Done Service RecordService Done By DatePage This page may be copied for personal use WALK-BEHIND ACCESSORIES AND OPTIONS SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONSMID-MOUNT RIDING ACCESSORIES AND OPTIONS OUT-FRONT RIDING ACCESSORIES AND OPTIONS
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