MTD Series 521 Your Edger, and Servicing, Replacing the Drive Belt, Maintaining, Flange lock nut

Replacing the Drive Belt

IMPORTANT: To aid in reassembly, note the orientation of the drive belt on the two idler pulleys and the engine flywheel pulley prior to performing the following steps. Refer to Fig. 6–3.

The edger drive belt is subject to wear and should be replaced if any signs of cracking, shredding or rotting are present. To replace the belt, proceed as follows:

1.Working in front of the edger, loosen the flange lock nut on top of frame, allowing the idler pulley assembly to pivot slightly out from the frame. See Fig. 6–3.

2.With your other hand, carefully reach under the rear of the unit and remove the belt from around the engine flywheel pulley. See Fig. 6–3.

3.Remove the spindle sheaves belt guard by removing the two self-tapping screws which secure it to the blade plate assembly. See Fig. 6–4.

4.Carefully remove the belt from off of the pulleys, again making sure to note the orientation of the belt. Discard the belt. See Fig. 6–4.

5.Working from the front of the edger, place the belt onto the spindle sheaves, route it back onto the two idler pulleys, and then place it onto the engine flywheel pulley.

IMPORTANT: Make certain that the “V” side of the belt is seated into the top pulley and the flat side of the belt is seated into the bottom pulley. See Fig. 6–3.

6.Reinstall the spindle sheaves belt guard with the self tapping screws removed earlier.

7.Make certain that the drive belt is on the engine flywheel pulley and idler pulleys, and retighten the flange lock nut on the top of the frame.

IMPORTANT: Make certain that the drive belt is seated correctly and that it is riding smoothly on the spindle sheaves and is not pinched between them. Repeat the first three steps if the belt is pinched.

WARNING: Never operate the edger without the spindle sheaves belt guard in place.

Flange lock nut

Engine flywheel pulley

Figure 6–3

Belt guard

Engine flywheel pulley

Figure 6–4

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Maintaining

and Servicing

Your Edger

WARNING

Never operate the edger without the spindle sheaves belt guard in place.

NOTE: Specifications are subject to change without notification or obligation.

Images my not reflect your exact model and are for reference purposes only.

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