Exmark 4500-689 manual Adjustments, Adjusting the Cutting Height, Maintenance

Page 25
Adjustments

Maintenance

Adjustments

Note: Disengage PTO, shut off engine, wait for all moving parts to stop, engage parking brake, and remove key before servicing, cleaning, or making any adjustments to the unit.

Adjusting the Cutting Height

The cutting height of the mower deck is adjusted from 1 inch to 4 1/4 inches (2.54 cm to 11.4 cm) in 1/4 inch (.64 cm) increments by adjusting the axle position, number of spacers below the caster hub, and number of spacers between blade and spindle.

Refer to the Cutting Height Adjustment table and select a cutting height range in the left hand column which corresponds to the range of cutting heights you will most often be using. Adjustments within this range can then be made by adjusting the number of blade spacers between the blade and the bottom of the spindle (this is a much easier adjustment to make

than adjusting axle position and number of spacers below caster support hub).

Note that:

For the best cut and discharge, place a minimum of two spacers between the blade and the spindle.

For highest quality cut, place all four spacers between the blade and the spindle.

If mulching kit is installed, the highest quality cut can be obtained with 3 spacers between the blade and the spindle (minimum is 1 for a good cut).

When mulching leaves it is best to have fewer spacers between blade and spindle.

Refer to the table and select desired cutting height range. Refer to Adjusting the Axle Position,

Adjusting the Number of Spacers below Caster Support Hub, and Adjusting the Cutting Height with Blade Spacers and sections to make adjustments make adjustment to obtain specific cutting height.

Cutting Height Adjustment Table (1 inch to 4 1/4 inches (2.5 cm-10.8 cm))

Cutting

Axle

Number Of Spacers

 

Number of 1/4 inch (.64 cm) Blade Spacers Below Spindle

Height

Position

Below Caster

 

 

 

 

 

 

 

 

 

 

 

 

 

Range

(Figure 10)

Support Hub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/2

3/16

 

4

 

3

 

2

 

1

 

0

 

 

 

inch

inch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1.2 cm)

(.48 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

1–2 inches

 

 

 

 

1 inch

1

1/4 inch

1

1/2 inch

1

3/4 inch

 

2 inch

(2.5–5.0 cm)

A

0

0

 

(2.5 cm)

 

(3.2

cm)

 

(3.5

cm)

 

(4.4

cm)

 

(5.0 cm)

1

1/8–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 1/8 inches

 

 

 

1

1/8 inch

1

3/8 inch

1

5/8 inch

1

7/8 inch

2

1/8 inch

(2.9–5.4 cm)

A

0

1

 

(2.9 cm)

 

(3.5

cm)

 

(4.1

cm)

 

(4.8

cm)

 

(5.4 cm)

1 3/8–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 3/8 inches

 

 

 

1

3/8 inch

1

5/8 inch

1

7/8 inch

2

1/8 inch

2

3/8 inch

(3.5–6.0 cm)

A

1

0

 

(3.5 cm)

 

(4.1

cm)

 

(4.8

cm)

 

(5.4

cm)

 

(6.0 cm)

1

3/8–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 3/8 inches

 

 

 

1

3/8 inch

1

5/8 inch

1

7/8 inch

2

1/8 inch

2

3/8 inch

(3.5–6.0 cm)

B

0

1

 

(3.5 cm)

 

(4.1

cm)

 

(4.8

cm)

 

(5.4

cm)

 

(6.0 cm)

1

5/8–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 5/8 inches

 

 

 

1

5/8 inch

1

7/8 inch

2

1/8 inch

2

3/8 inch

2

5/8 inch

(4.1–6.7 cm)

B

1

0

 

(4.1 cm)

 

(4.8

cm)

 

(5.4

cm)

 

(6.0

cm)

 

(6.7 cm)

1

3/4–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 3/4 inches

 

 

 

1

3/4 inch

 

2 inch

2

1/4 inch

2

1/2 inch

2

3/4 inch

(4.4–7.0 cm)

B

1

1

 

(4.4 cm)

 

(5.0

cm)

 

(5.7

cm)

 

(6.4

cm)

 

(7.0 cm)

2–3 inches

 

 

 

 

2 inch

2

1/4 inch

2

1/2 inch

2

3/4 inch

 

3 inch

(5.0–7.6 cm)

B

2

0

 

(5.0 cm)

 

(5.7

cm)

 

(6.4

cm)

 

(7.0

cm)

 

(7.6 cm)

1

7/8–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 7/8 inches

 

 

 

1

7/8 inch

2

1/8 inch

2

3/8 inch

2

5/8 inch

2

7/8 inch

(4.8–7.3 cm)

C

1

1

 

(4.8 cm)

 

(5.4

cm)

 

(6.0

cm)

 

(6.7

cm)

 

(7.3 cm)

25

Image 25
Contents For Serial Nos 920,000 & Higher METROAll Rights Reserved CALIFORNIA Proposition 65 WarningModel No Serial No IntroductionContents Safety Alert Symbol SafetySafety ALERT! YOUR SAFETY IS INVOLVEDAvoid prolonged breathing of vapors DANGERKeep face away from nozzle and gas tank/container opening Keep away from eyes and skin Never siphon by mouthSlope Operation OperationAllow engine parts, especially the muffler, to cool before touching Remove accumulated debris from muffler and engine areaDo Not mow slopes when grass is wet Maintenance and StorageMow across slopes, never up and down Do Not mow near drop-offs or near waterSafety and Instructional Decals 103-1798 1-403143 98-5954 103-1623103-2076 103-2244 103-224548 inch Deck Units Only 117-2718 103-5626103-1967 Pistol Grip Units OnlySpecifications SpecificationsSafety Interlock System Model NumbersCurb Weight DimensionsTorque Requirements Cutting DeckOperation Product OverviewControls OperationChoke Control “Off-Run” SwitchThrottle Control Drive LeversOperating Instructions Pre-StartOpen the Fuel Shut-Off Valve Starting the EngineDrive Lever/Neutral Lock/Park Brake Latch Operation Driving the MachineFor Pistol Grip Handles For ECS HandlesIf necessary, use assistance when loading Keep feet and legs out from under the unit when loading and unloadingTransporting Changing GearsRecommended Maintenance Schedules MaintenanceMaintenance Service Interval Before each use or daily Periodic MaintenanceService Interval As required Check Engine Oil LevelService Air Cleaner Check Safety Interlock SystemSERVICE DEALER Check for Loose HardwareService Interval Every 40 hours Service Interval After the first 5 hoursNote See chart for service intervals Change Engine OilService Interval Every 500 hours Service Interval Every 160 hoursCheck Spark Plugs Change Fuel FilterMobil HTS Grease Or Food-Grade Anti-seize Thread Locking AdhesivesCopper-Based Anti-seize Dielectric GreaseAdjusting the Cutting Height AdjustmentsAdjusting the Axle Position Adjusting the Cutting Height with Blade Spacers Adjusting the Number of Spacers below Caster Support HubWheel Drive Belt Pulley Scrapers AdjustmentEngine to Mower Deck Belt Transmission BeltCheck belt tension after the first hour of operation Blade Brake AdjustmentBrake and Wheel Drive Linkage Adjustment Belt Guide AdjustmentShown with Blades Disengaged 48 inch Belt Guide Location Viewed from underneath the deckLeft Side Shown Shifter Lever Adjustment PTO Safety Switch Adjustment Shifter Detent AdjustmentHandle Height Adjustment Wheel Drive Spring Tension AdjustmentClean Engine and Exhaust System Area CleaningRemove Engine Shrouds and Clean Cooling Fins Clean all debris from engine and exhaust system areaClean Grass Build-Up Under Deck Clean Debris From MachineWaste Disposal Motor Oil DisposalTroubleshooting TroubleshootingCutting blades is/are bent or unbalanced Schematics Schematics2 Year Limited Warranty Exmark Commercial Turf EquipmentInstructions for Obtaining Warranty Service Owner’s ResponsibilitiesPage Service Done By Service RecordDate Description of Work DonePage This page may be copied for personal use 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