Replacing the Blades

Warning! Before performing any maintenance, place the PTO switch in the “OFF” position, engage the parking brake lever, turn the ignition key to the “OFF” position and remove the key from the switch. Protect your hands by using heavy gloves when handling the blades. When servicing the mower deck, be careful not to cut yourself on the sharpened blades.

1.Remove the key from the ignition and disconnect the spark plugs.

2.Jack up the front of the mowing deck about one foot and block it in that position.

3.Wrap a rag around one end of the blade and grasp it to prevent it from turning, or secure the blade by placing a block of wood between the blade and the deck housing.

See Fig. 7-4.

Figure 7-4

4.Use a 1-1⁄8” socket wrench on the pulley side of the spindle bolt. See Fig. 7-5.

Hex Screw

Blade

Flange Lock Nut

Figure 7-5

5.Remove the hex nut at the blade using a 1-1⁄8” wrench.

6.Remove the blade.

7.To replace the blade reverse the above process and tighten nut to 100-120 lb ft.

NOTE: Add a small amount of multi-purpose grease to the bolt threads to avoid corrosion and galvenic action.

WARNING! Never mow with dull blades. Blades that are bent should be replaced. The cutting blades are sharp and can cause severe injury. Wrap the cutting surface of the blade with a rag to avoid injury.

Sharpening the Blades

1.Set the parking brake.

2.Clean any debris from the blades. Keep blades sharp and free of build up at all times.

3.Sharpen blades evenly at the original 30° angle to maintain balanced cutting blades. Do not sharpen the underside of the blades. Use a electric blade sharpener, a conventional electric grinder or a hand file to sharpen the blades.

4.Replace any blade with severe nicks or dents that cannot be removed by filing.

5.Check the balance of the blade after sharpening by placing it on a blade balancer. Do not use un-balanced blades.

6.If the blade dips on one end, file stock off of the cutting surface on that end.

NOTE: Replace any blades that cannot easily be balanced.

Section 7 — Service

 

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