Exmark 4500-466 manual Adjusting the Anti-Scalp Rollers

Operation

Figure 17

1.	Deck foot pedal	3.	Cut of height decal
2.	Height adjustment pin	4.	Transport lock control

5.Insert the height adjustment pin into the hole corresponding to the desired cutting height.

See the decal on the side of the deck lift plate for cut heights.

6.Push the deck lift pedal, release the transport lock and allow the deck to lower to the cutting height.

Figure 18

For cutting heights above 3.5 inches (90 mm) use the bottom hole. The rollers will still be effective against scalping.

1. Anti-scalp roller	2. Cutting height
mounting bracket

For Maximum Deck Flotation, place the rollers one hole position lower. Rollers should maintain 1/4 inch (6.4 mm) clearance to the ground. Do Not adjust the rollers to support the deck.

7.Be sure the roller bolts are installed with the spring disc washer between the head of the bolt and the mounting bracket (Figure 19).

8.Torque the 3/8–24 x 2 Gr 8 hex capscrew to 50–55 ft-lb (68–75 N-m) (Figure 19).

Adjusting the Anti-Scalp Rollers

It is recommended to change the anti-scalp roller position, when the height of cut has changed.

1.Stop the machine and move the motion control levers outward to the neutral lock 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.Adjust the anti-scalp rollers by removing the bushing, spring disc washer and bolt.

6.Place the rollers in one of the positions shown (Figure 18). Rollers will maintain 3/4 inch (19 mm) clearance to the ground to minimize gouging and roller wear or damage.

Figure 19

1.	Spring disc washer	3.	3/8 nyloc-torque to 30-35
	(cone towards bolt head)		ft-lb (41-47 N-m)
2.	Front right anti-scalp	4.	3/8-24 x 2 GR8 torque to
	bracket shown		50-55 ft-lb (68-75 N-m)

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