Rear Caster Pivot Bearings Pre-Load Adjustment | Exmark 4500-367

Maintenance

Rear Caster Pivot Bearings

Pre-Load Adjustment

Remove dust cap from caster and tighten nyloc nut until washers are flat. Back off 1/4 of a turn to properly set the pre-load on the bearings. If disassembled, make sure the spring disc washers are reinstalled as shown in Figure 21.

	Figure 22
1. Loosen door hinge	2. Place a piece of 3/8 inch
nuts-three per side	(9.5 mm) rubber on this
	surface

Figure 21

1.Spring disc washers

Hopper Door Adjustment

Door Closing:

Loosen six door hinge nuts (see Figure 22).

Open door and place a 3/8 inch rubber strip or 3/8 inch diameter hose between the hopper and hopper door (see Figure 22).

Close door and push tight against hopper.

Tighten hinge hardware. Open hopper door and remove rubber strip.

PTO Brake Spring

Adjustment

PTO brake spring adjustment is only necessary if the blower has been removed or replaced or if the PTO drive idler arm has been disassembled.

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Locate the brake spring and thread the two jam nuts out to the end of the brake spring rod (see Figure 23).

3.Tighten jam nuts together at end of brake spring rod.

Figure 23

1.Tighten jam nuts here

2.PTO Brake spring assembly

34

Image 34

Exmark 4500-367 manual Rear Caster Pivot Bearings Pre-Load Adjustment, Hopper Door Adjustment, PTO Brake Spring Adjustment

Contents

Navigator California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol Training Safety Operation Slope Operation Maintenance and Storage Safety and Instructional Decals 103-9034 103-9724 109-4273 109-4638 109-7318 116-0404 116-1175 Molded in LH Console Molded into Front of Hopper Model Numbers SpecificationsSystems Dimensions Product Overview Curb WeightTorque Requirements Operation Controls Pre-Start Operating Instructions Stopping the Engine Engaging the PTODisengaging the PTO Driving the Machine Clearing Hopper Screen TransportingEmptying Hopper Transporting a Unit Loading a Unit Maintenance Recommended Maintenance Schedules Check Battery Charge Check Engine Oil Level Check for Loose Hardware Check Safety Interlock SystemService Air Cleaner Change Engine Oil Check Condition Of Belts Check Hydraulic Oil LevelCheck Tire Pressures Lubricate Grease Fittings Service Interval Yearly Lubricate Rear Caster Wheel Hubs Lubricate Steering Linkage Rod Ends Lubricate Brake Handle PivotLubricate Brake Rod Bushings Lubricate Hopper Actuator Change Hydraulic System Filter Check Wheel Hub Locknuts Fuel Tank Mounting Hardware SpecificationsPTO Belt Replacement Check Wheel Lug Nuts Pump Drive Belt Replacement Belt Guide Adjustment Brake Adjustment Adjust Safety SwitchAdjust Speed Control Lever Tension Speed Control Linkage Adjustment Response Adjustment Steering Control Lever PTO Drive Pulley Alignment Tracking AdjustmentPump Drive Pulley Alignment Hopper Door Adjustment Rear Caster Pivot Bearings Pre-Load AdjustmentPTO Brake Spring Adjustment Clean Debris From Machine Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Waste Disposal Troubleshooting Problem Possible Cause Corrective Action Troubleshooting Schematics Electrical Diagram Electrical Logic Schematic Start Hydraulic Diagram Exmark Commercial Turf Equipment Page Page See EXMARK’S Complete Line of Accessories and Options