Anti-scalp rollers are correctly adjusted when they are slightly off of the ground when the deck is at the desired cutting height in the operating position. Anti-scalp rollers keep the deck in the proper position to help prevent scalping in most terrain conditions.
The anti-scalp rollers can be set in three positions:
Upper —1-1/2" to 2-1/2" (38 mm -63 mm) grass
Middle —2-1/2" to 4" (63 mm -102 mm) grass
Lower — 4" to 6" (102 mm -152 mm) grass.
The rollers must be approximately 1/4" from the ground.