DescriptionThis video provides step-by-step instructions for replacing the middle idler pulley on Craftsman lawn mowers. The most common reason for replacing the pulley is if it is damaged, causing the rear wheels not to move.
All of the information in this idler pulley replacement video is applicable to the following brands: Craftsman, Husqvarna, Ariens, Poulan, Dixon
Tools used: 9/16” socket
Step-By-Step Instructions1
Before you replace the middle idler pulley on your riding mower make sure the ignition switch is in the “off” position and the key has been removed.
2
Confirm that the mower deck is at its lowest position and that the clutch actuator lever is in the “off” position.
3
Now remove the retaining pins securing the support arms and detach the arms to release the mower deck from the frame.
4
Next, release the deck belt from the engine pulley and the belt guides.
5
Detach the clutch cable from the retainer.
6
You can now slide the deck out from under the frame.
8
Hold the middle idler pulley mounting bolt in place and use a 9/16th inch socket to loosen and unthread the mounting nut.
9
With the nut removed, pull off the old pulley.
10
Install the new idler pulley by sliding it onto the mounting bolt.
11
Hold the bolt in place as you rethread and tighten the nut.
12
Loop the belt around the front and middle idler pulleys in an “s” formation.
13
Disengage the brake and slide the mower deck back under the frame.
14
Secure the clutch cable in the retainer.
15
Realign the deck belt on the engine pulley and the belt guides.
16
Reposition the support arms and secure them using the washers where applicable and the retaining pins.